SEC Form 424B5 filed by Aclarion Inc.

Filed pursuant to Rule 424(b)(5)

Registration No. 333-286761

PROSPECTUS SUPPLEMENT

(to Prospectus dated May 5, 2025)

ACLARION, INC.

64,000 Shares of Common Stock

236,000 Pre-Funded Warrants to Purchase Shares of Common Stock

236,000 Shares of Common Stock Issuable Upon Exercise of the Pre-Funded Warrants

We are offering 64,000 shares (the “Shares”) of our common stock, par value $0.00001 per share, and, in lieu of common stock, pre-funded warrants to purchase 236,000 shares of our common stock, to certain investors whose purchase of shares of common stock in this offering would result in the investor, together with its affiliates and certain related parties, beneficially owning more than 4.99% (or, at the election of the purchaser, 9.99%) of our outstanding common stock following the consummation of this offering in lieu of the shares of our common stock that would result in ownership in excess of 4.99% (or, at the election of the purchaser, 9.99%), pursuant to this prospectus supplement and the accompanying prospectus, directly to certain investors.

The Shares and pre-funded warrants are being offered pursuant to a securities purchase agreement, dated as of October 13, 2025, by and between us and the purchasers identified therein.

The purchase price of each pre-funded warrant will equal the price per share at which shares of our common stock are being sold in this offering, minus $0.00001, which is the exercise price of each pre-funded warrant. The pre-funded warrants do not expire, and each pre-funded warrant will be exercisable at any time after the date of issuance, subject to an ownership limitation. This prospectus supplement also relates to the offering of the shares of our common stock issuable upon the exercise of such pre-funded warrants.

There is no established public trading market for the pre-funded warrants, and we do not expect a market to develop. We do not intend to list the pre-funded warrants on The Nasdaq Capital Market or any other national securities exchange or nationally recognized trading system.

Our common stock is quoted on the Nasdaq Capital Market under the symbol “ACON.” The last reported sale price of our common stock on the Nasdaq Capital Market on October 10, 2025, was $8.5972 per share. Our warrants offered in connection with our initial public offering (the “IPO Warrants”) are quoted on the Nasdaq Capital Market under the symbol “ACONW.” The last reported sale price of our IPO Warrants on the Nasdaq Capital Market on October 10, 2025 was $0.0361 per IPO Warrant.

We are an “emerging growth company” and a “smaller reporting company” as defined under the federal securities laws and, as such, have elected to be subject to reduced public company reporting requirements. See “Prospectus Supplement Summary — Emerging Growth Company under the JOBS Act; Smaller Reporting Company.”

Investing in our securities involves risks. You should review carefully the risks and uncertainties described under the heading “Risk Factors” beginning on page S-7 of this prospectus supplement and under similar headings in the other documents that are incorporated by reference in this prospectus supplement and the accompanying prospectus.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this prospectus supplement is truthful or complete. Any representation to the contrary is a criminal offense.

We have retained Dawson James Securities, Inc. (the “placement agent”) to act as our exclusive placement agent in connection with this offering. The placement agent is not purchasing or selling any of the securities offered pursuant to this prospectus supplement and the accompanying prospectus and the placement agent is not required to arrange the purchase or sale of any specific number or dollar amount of securities, but they have agreed to use their best efforts to arrange for the sale of all of the securities.

Delivery of the Shares and pre-funded warrants is expected to be made on or about October 14, 2025.

Dawson James Securities, Inc.

The date of this prospectus supplement is October 13, 2025.

PROSPECTUS SUPPLEMENT

TABLE OF CONTENTS

PROSPECTUS

TABLE OF CONTENTS

ABOUT THIS PROSPECTUS SUPPLEMENT

This document consists of two parts. The first part is this prospectus supplement, including the information incorporated by reference, which describes the specific terms of this offering and other matters relating to us. The second part is the accompanying prospectus, which provides more general information about us and the securities we may offer from time to time, some of which may not apply to this offering. This prospectus supplement and the accompanying prospectus are part of the registration statement on Form S-3 (Registration No. 333-286761) that we filed with the Securities and Exchange Commission (the “SEC”) using a “shelf” registration process. Under this “shelf” registration process, we may, from time to time, sell or issue any of the combination of securities described in the accompanying prospectus in one or more offerings with a maximum aggregate offering price of up to $150,000,000. Each time we sell securities, we provide a prospectus supplement that contains specific information about the terms of that offering. A prospectus supplement may also add, update, or change information contained in the accompanying prospectus. You should read both this prospectus supplement and the accompanying prospectus, together with the documents incorporated by reference and the additional information described under the heading “Where You Can Find More Information” in this prospectus supplement and the accompanying prospectus before making an investment decision.

To the extent there is a conflict between the information contained in this prospectus supplement and the accompanying prospectus, you should rely on the information in this prospectus supplement. This prospectus supplement, the accompanying prospectus, and the documents we incorporate by reference herein and therein include important information about us, this offering and our securities and other information you should know before investing. If any statement in this prospectus supplement conflicts with any statement in a document that has been incorporated herein by reference, then you should consider only the statement in the more recent document.

The distribution of this prospectus supplement and the accompanying prospectus and the offering of our securities in certain jurisdictions may be restricted by law. We are not, and the placement agent is not, making an offer of these securities in any jurisdiction where the offer is not permitted. Persons who come into possession of this prospectus supplement and the accompanying prospectus should inform themselves about and observe any such restrictions. This prospectus supplement and the accompanying prospectus do not constitute, and may not be used in connection with, an offer or solicitation by anyone in any jurisdiction in which such offer or solicitation is not authorized or in which the person making such offer or solicitation is not qualified to do so or to any person to whom it is unlawful to make such offer or solicitation.

You should rely only on the information contained in or incorporated by reference in this prospectus supplement, the accompanying prospectus, and any free writing prospectus prepared by or on behalf of us or to which we have referred you. We have not, and the placement agent has not, authorized any person to provide you with any information or to make any representation other than as contained in this prospectus supplement or in the accompanying prospectus and the information incorporated by reference herein and therein. We and the placement agent do not take any responsibility for, and can provide no assurance as to the reliability of, any information that others may provide you. The information appearing or incorporated by reference in this prospectus supplement and the accompanying prospectus is accurate only as of the date of this prospectus supplement or the date of the document in which incorporated information appears unless otherwise noted in such documents. Our business, financial condition, results of operations and prospects may have changed since those dates. You should assume that the information appearing in this prospectus supplement, the accompanying prospectus, and the documents incorporated by reference herein and therein is accurate only as of the date of those respective documents. Our business, financial condition, results of operations and prospects may have changed since those dates. You should carefully read this entire prospectus supplement and the accompanying prospectus, including the information included and referred to under “Risk Factors” below, the information incorporated by reference in this prospectus supplement and in the accompanying prospectus, and the financial statements and the other information incorporated by reference in the accompanying prospectus, before making an investment decision.

Unless the context indicates otherwise, as used in this prospectus supplement, unless the context otherwise requires, references to “we,” “us,” “our,” “the Company” and “Aclarion” refer to Aclarion, Inc.

CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

This prospectus supplement and the accompanying prospectus and the documents incorporated by reference herein and therein may contain forward looking statements that involve significant risks and uncertainties. All statements other than statements of historical fact contained in this prospectus supplement and the accompanying prospectus and the documents incorporated by reference herein and therein, including statements regarding future events, our future financial performance, business strategy, and plans and objectives of management for future operations, are forward-looking statements. We have attempted to identify forward-looking statements by terminology including “anticipates,” “believes,” “can,” “continue,” “could,” “estimates,” “expects,” “intends,” “may,” “plans,” “potential,” “predicts,” “should,” or “will” or the negative of these terms or other comparable terminology. Although we do not make forward looking statements unless we believe we have a reasonable basis for doing so, we cannot guarantee their accuracy. These statements are only predictions and involve known and unknown risks, uncertainties and other factors, including the risks outlined under “Risk Factors” or elsewhere in this prospectus supplement and the documents incorporated by reference herein, which may cause our or our industry’s actual results, levels of activity, performance or achievements expressed or implied by these forward-looking statements. Moreover, we operate in a highly regulated, very competitive, and rapidly changing environment. New risks emerge from time to time and it is not possible for us to predict all risk factors, nor can we address the impact of all factors on our business or the extent to which any factor, or combination of factors, may cause our actual results to differ materially from those contained in any forward-looking statements.

We have based these forward-looking statements largely on our current expectations and assumptions about future events and financial trends that we believe may affect our financial condition, results of operations, business strategy, short term and long term business operations, and financial needs. These forward-looking statements are subject to certain risks and uncertainties that could cause our actual results to differ materially from those reflected in the forward-looking statements. Factors that could cause or contribute to such differences include, but are not limited to, those discussed in this prospectus supplement, and in particular, the risks discussed below and under the heading “Risk Factors” and those discussed in other documents we file with the SEC which are incorporated by reference herein. This prospectus supplement and the accompanying prospectus should be read in conjunction with the consolidated financial statements for the fiscal years ended December 31, 2024 and 2023 and related notes, as well as our annual and quarterly financial statements filed thereafter, each of which are or will be incorporated by reference herein.

We undertake no obligation to revise or publicly release the results of any revision to these forward-looking statements, except as required by law. In light of the significant risks, uncertainties and assumptions that accompany forward-looking statements, the forward-looking events and circumstances discussed in this prospectus supplement and the accompanying prospectus may not occur and actual results could differ materially and adversely from those anticipated or implied in the forward-looking statement.

You should not place undue reliance on any forward-looking statement, each of which applies only as of the date of this prospectus supplement. Except as required by law, we undertake no obligation to update or revise publicly any of the forward-looking statements after the date of this prospectus supplement to conform our statements to actual results or changed expectations.

Any forward-looking statement you read in this prospectus supplement or accompanying prospectus or any document incorporated by reference reflects our current views with respect to future events and is subject to these and other risks, uncertainties and assumptions relating to our operations, operating results, growth strategy and liquidity. You should not place undue reliance on these forward-looking statements because such statements speak only as to the date when made. We assume no obligation to publicly update or revise these forward-looking statements for any reason, or to update the reasons actual results could differ materially from those anticipated in these forward-looking statements, even if new information becomes available in the future, except as otherwise required by applicable law. All subsequent forward-looking statements attributable to us or to any person acting on our behalf are expressly qualified in their entirety by the cautionary statements contained or referred to in this section. You are advised, however, to consult any further disclosures we make on related subjects in our reports on Forms 10-Q, 8-K and 10-K filed with the SEC. You should understand that it is not possible to predict or identify all risk factors. Consequently, you should not consider any such list to be a complete set of all potential risks or uncertainties.

PROSPECTUS SUPPLEMENT SUMMARY

This summary highlights selected information about us and this offering appearing in this prospectus supplement, the accompanying prospectus and the documents incorporated or deemed incorporated by reference herein and therein. This summary may not contain all of the information that you should consider before making an investment decision. You should read carefully the more detailed information included or referred to under the heading “Risk Factors” of this prospectus supplement and the other information included in this prospectus supplement, the accompanying prospectus, the documents incorporated or deemed incorporated by reference herein and therein, including our Annual Report on Form 10-K for the year ended December 31, 2024 , before deciding to invest in our common stock.

Overview

We are a healthcare technology company that leverages Magnetic Resonance Spectroscopy (“MRS”), and proprietary biomarkers to optimize clinical treatments. Our technology addresses the $134.5B U.S. low back and neck pain market, which according to a 2020 JAMA (Journal of the American Medical Association) article is now the most costly healthcare condition in the United States. We are currently utilizing Artificial Intelligence (“AI”) to assist in quality control processes that flag spectroscopy data indicative of a poor MRS study. The use of AI in this application is early in its development cycle and is expected to evolve with further research and development. We are capturing in databases both the raw spectroscopy data and the post-processed spectral data from every Nociscan completed in order to utilize this data as future training data to teach a machine learning algorithms to associate MRS data with clinical outcomes. The use of AI in this application is aspirational and we intend this type of AI research and development to be an ongoing process applied not only to the various treatment paths associated with back pain, such as conservative therapies, regenerative and cell therapies and surgical intervention, but also to potentially expand into other clinical explorations involving the diagnosis of brain, breast and prostate tumors.

We have limited sales to date, and are working to address the chronic low back pain market by initially focusing on improving the outcomes of surgical interventions to treat chronic discogenic low back pain. In this initial application, our technology is intended to assist surgeons in determining the optimal surgical procedure for a patient undergoing surgery for pain isolated to their lumbar spine (the “lumbar spine” is comprised of the five (5) lower vertebrae, L-1 to L-5). Through clinical studies we intend to extend the application of our technology beyond surgical decisioning to help with managing large segments of low back pain patients from the point of initial MRI through to episode resolution. We believe this will expand the use of our technology to supporting treatment decisions for chronic low back pain patients undergoing conservative therapies such as physical therapy or biologic and cell therapies aimed at regenerating the lumbar discs. We plan to expand the application of our technology beyond the lumbar spine to address neck pain populations in addition to low back pain populations. To expand the application of our technology for use in neck pain populations, we will need to overcome technical changes associated with securing adequate MRS data from the cervical disc, which is significantly smaller than the lumbar disc, and there can be no assurance we will be able to overcome these challenges.

The core technology we employ is MR Spectroscopy. The patient experience when undergoing an MRS exam is exactly like that of a standard MRI, with the exception of an additional 3-5 minutes for each disc undergoing a spectroscopy exam. Whereas a standard MRI produces a signal that is converted into anatomical images, an MRS produces a signal that is converted into a waveform that identifies the chemical composition of tissues. Just like with standard MRIs, the data from spectroscopy is useless without technologies that can process the data. We have developed proprietary signal processing software that transforms spectroscopy data into clear biomarkers. These biomarkers, which are exclusively licensed from the Regents of University of California, San Francisco (“UCSF”), are the key data inputs for our proprietary algorithms that, when applied, determine if an intervertebral disc is consistent with pain. Our patent portfolio includes 24 U.S. Patents, 17 Foreign Patents, 6 pending U.S. patent applications, and 7 pending Foreign patent applications, including patents and patent applications exclusively licensed from Regents of the University of California.

We believe one of the biggest issues driving the cost of treating low back and neck pain patients to the top of the list for healthcare spending is that there is no objective, cost effective and noninvasive diagnostics to reliably identify the source of a patient’s pain. We believe the poor surgical outcomes for chronic Discogenic Low Back Pain (“DLBP”) are largely due to difficulties in reliably and accurately diagnosing the specific spinal discs that are causing pain. The current primary diagnostic standard is the MRI, which is useful for showing abnormal structures and tissue dehydration, but, we believe, cannot reliably identify specific discs that are causing pain. To diagnose specific discs that are causing pain, a needle-based Provocation Discogram test (“PD Test”) has been developed. PD Tests have been shown to be highly accurate when performed properly. However, a PD Test is invasive, subjective, and unpleasant for the patient as the patient needs to be awake in order to tell the physician if the pain the physician is purposefully causing in the disc is the same as the pain the patient feels when they are experiencing a back pain episode. In addition, recent evidence has shown that the action of inserting a needle into a normal disc during a discogram procedure leads to an increased rate of degeneration in these previously normal discs. Based on the limitations and concerns of the PD Test, we believe there is a significant need for an objective, accurate, personalized, and noninvasive diagnostic test that can reliably determine if an individual disc is a pain generator. By providing physicians information about whether a disc has the chemical and structural makeup consistent with pain or not, we believe the treatment plan for each patient will lead to more efficient and targeted care that, will in turn, result in lower costs and healthier patient outcomes.

Emerging Growth Company under the JOBS Act; Smaller Reporting Company

As a company with less than $1.235 billion in revenue during our last fiscal year, we qualify as an “emerging growth company” under the Jumpstart Our Business Startups Act of 2012. As an emerging growth company, we have elected to take advantage of reduced reporting requirements and are relieved of certain other significant requirements that are otherwise generally applicable to public companies. As an emerging growth company:

We may take advantage of these provisions until December 31, 2026 (the last day of the fiscal year following the fifth anniversary of our initial public offering) if we continue to be an emerging growth company. We would cease to be an emerging growth company if we have more than $1.235 billion in annual revenue, have more than $700 million in market value of our shares held by non-affiliates or issue more than $1.0 billion of non-convertible debt over a three-year period. We may choose to take advantage of some but not all of these reduced burdens. We have elected to provide two years of audited financial statements. Additionally, we have elected to take advantage of the extended transition period provided in Section 7(a)(2)(B) of the Securities Act of 1933, as amended (the “Securities Act”), for complying with new or revised accounting standards that have different effective dates for public and private companies until the earlier of the date we (i) are no longer an emerging growth company or (ii) affirmatively and irrevocably opt out of the extended transition period provided in Section 7(a)(2)(B) of the Securities Act. Accordingly, the information contained herein may be different from the information you receive from other public companies that are not emerging growth companies.

We are also a “smaller reporting company” meaning that the market value of our stock held by non-affiliates is less than $700 million and our annual revenue was less than $100 million during the most recently completed fiscal year. We may continue to be a smaller reporting company if either (i) the market value of our stock held by non-affiliates is less than $250 million or (ii) our annual revenue was less than $100 million during the most recently completed fiscal year and the market value of our stock held by non-affiliates is less than $700 million. If we are a smaller reporting company at the time we cease to be an emerging growth company, we may continue to rely on exemptions from certain disclosure requirements that are available to smaller reporting companies. Specifically, as a smaller reporting company we may choose to present only the two most recent fiscal years of audited financial statements in our Annual Report on Form 10-K and, similar to emerging growth companies, smaller reporting companies have reduced disclosure obligations regarding executive compensation.

Corporate Information

We were formed under the name Nocimed, LLC, a limited liability company in January 2008, under the laws of the State of Delaware. In February 2015, Nocimed, LLC was converted into Nocimed, Inc., a Delaware corporation. On December 3, 2021, we changed our name to Aclarion, Inc. Our principal executive offices are located at 8181 Arista Place, Suite 100, Broomfield, Colorado 80021. Our main telephone number is (833) 275-2266. Our internet website is www.aclarion.com. The information contained in, or that can be accessed through, our website is not incorporated by reference and is not a part of this prospectus supplement.

THE OFFERING

The number of shares outstanding after this offering is based on 582,371 shares of our common stock outstanding as of June 30, 2025, and excludes as of such date:

Unless otherwise indicated, all information in this prospectus supplement reflects or assumes the following:

RISK FACTORS

An investment in our securities involves a high degree of risk. Before investing in our shares of common stock, you should carefully consider the risk factors set forth below and those described under “Risk Factors” in the documents incorporated by reference herein, including in our most recent Annual Report on Form 10-K filed with the SEC, together with the other information included in this prospectus supplement and incorporated by reference herein from our filings with the SEC. If any of such risks or uncertainties occurs, our business, financial condition, and operating results could be materially and adversely affected. Additional risks and uncertainties not currently known to us or that we currently deem immaterial also may materially and adversely affect our business operations. As a result, the trading price of our common stock could decline and you could lose all or a part of your investment.

Risks Related to this Offering

We will have broad discretion in using the proceeds of this offering, and we may not effectively spend the proceeds.

We will use the net proceeds of this offering to fund market development and clinical evidence, product development and quality, and general and administration support, and other general corporate purposes. We have not allocated any specific portion of the net proceeds to any particular purpose, and our management will have the discretion to allocate the proceeds as it determines and could use them for purposes other than those contemplated at the time of the offering. We will have significant flexibility and broad discretion in applying the net proceeds of this offering, and we may not apply these proceeds effectively, and you will not have the opportunity as part of your investment decision to assess whether our management is using the proceeds appropriately. The failure by our management to apply these funds effectively could result in financial losses that could have a material adverse effect on our business and cause the price of our common stock to decline. Pending their use, we may invest the net proceeds in short- and intermediate-term, interest-bearing obligations, investment-grade instruments, certificates of deposit or direct or guaranteed obligations of the U.S. government. These investments may not yield a favorable return to our stockholders. Please see the section entitled “Use of Proceeds” on page S-10 of this prospectus supplement for further information.

Issuances of shares of our common stock or securities convertible into or exercisable for shares of our common stock following this offering, as well as the exercise of existing options or warrants, will dilute your ownership interests and may adversely affect the future market price of our common stock.

We will need additional capital to fund the development and expansion of our business. We may seek additional capital through a combination of private and public equity offerings, debt financings, strategic partnerships and alliances and licensing arrangements at prices and in a manner we determine from time to time, which may cause your ownership interest to be diluted. As of June 30, 2025, there were options to purchase 19 shares of our common stock and 19,710 shares of our common stock issuable upon the exercise of warrants. If these securities are exercised, you may incur further dilution. Moreover, to the extent that we issue additional shares of our common stock, options to purchase, or securities convertible into or exchangeable for, shares of our common stock in the future and those options or other securities are exercised, converted or exchanged, stockholders may experience further dilution. The price per share at which we sell additional shares of our common stock or other securities convertible into or exchangeable for our common stock in future transactions may be higher or lower than the price per share in this offering.

A substantial number of shares may be sold in the market following this offering, which may depress the market price for our common stock.

Sales of a substantial number of shares of our common stock in the public market following this offering could cause the market price of our common stock to decline. A substantial majority of the outstanding shares of our common stock are, and all of the shares sold in this offering upon issuance will be, freely tradable without restriction or further registration under the Securities Act, unless these shares are owned or purchased by “affiliates” as that term is defined in Rule 144 under the Securities Act. In addition, we have also registered the shares of common stock that we may issue under our equity incentive plans. As a result, these shares can be freely sold in the public market upon issuance, subject to restrictions under securities laws.

Our share price may be subject to substantial volatility, and stockholders may lose all or a substantial part of their investment.

Our shares currently trade on Nasdaq. Trading volume historically has been low and sporadic. As a result, the market price for our shares may not necessarily be a reliable indicator of our fair market value. The price at which our shares trade may fluctuate or decline substantially as a result of a variety of factors, some of which are beyond our control or are related in complex ways, including:

Broad market and industry fluctuations, as well as general economic, political, regulatory, and market conditions, may negatively impact the market price of our common stock. In addition, given the relatively small expected public float of shares of our common stock on the Nasdaq Capital Market, the trading market for our shares may be subject to increased volatility. In the past, securities class action litigation has often been brought against a company following a decline in the market price of its securities. This risk is especially relevant for us, because medical device companies have experienced significant stock price volatility in recent years. If we face such litigation, it could result in substantial costs and a diversion of management’s attention and resources, which could harm our reputation and our business.

We do not currently intend to pay dividends on our common stock, and, consequently, investors’ ability to achieve a return on their investment will depend on appreciation in the price of our common stock.

We have never declared or paid cash dividends on our capital stock. We currently intend to retain future earnings, if any, to finance the expansion of our business. As a result, we do not anticipate paying any cash dividends in the foreseeable future. Our payment of any future dividends will be at the discretion of our board of directors after taking into account various factors, including but not limited to our financial condition, operating results, cash needs, growth plans and the terms of any credit agreements that we may be a party to at the time. Accordingly, investors seeking cash dividends should not purchase our shares. There is no guarantee that our common stock will appreciate or even maintain the price at which investors have purchased it.

There is no public market for the pre-funded warrants being offered in this offering.

There is no public trading market for the pre-funded warrants being offered in this offering, and we do not expect a market to develop. In addition, we do not intend to list the pre-funded warrants on The Nasdaq Capital Market or any other national securities exchange or nationally recognized trading system. Without an active trading market, the liquidity of the pre-funded warrants will be limited.

Except for the right to participate in certain dividends and distributions, holders of the pre-funded warrants will have no rights as common stockholders until such holders exercise their pre-funded warrants and acquire our common stock.

Until holders of the pre-funded warrants exercise their pre-funded warrants and acquire shares of our common stock, such holders will have no rights with respect to the shares of our common stock underlying such pre-funded warrants, except that the holder of a pre-funded warrant shall be entitled to participate in certain distributions, including cash dividends, if any, to all holders of our common stock for no consideration, subject to certain ownership limitations. Upon exercise of the pre-funded warrants, the holders will be entitled to exercise the rights of a common stockholder only as to matters for which the record date occurs after the exercise date.

Significant holders or beneficial owners of our common stock may not be permitted to exercise the pre-funded warrants that they hold.

A holder of the pre-funded warrants will not be entitled to exercise any portion of any pre-funded warrant that, upon giving effect to such exercise, would cause (i) the aggregate number of shares of our common stock beneficially owned by such holder (together with its affiliates) to exceed 4.99% (or, at the election of the purchaser, 9.99%) of the number of shares of our common stock outstanding immediately after giving effect to the exercise; or (ii) the combined voting power of our securities beneficially owned by such holder (together with its affiliates) to exceed 4.99% (or, at the election of the purchaser, 9.99%) of the combined voting power of all of our securities outstanding immediately after giving effect to the exercise, as such percentage ownership is determined in accordance with the terms of the pre-funded warrants and subject to such holder’s rights under the pre-funded warrants to increase or decrease such percentage to any other percentage not in excess of 9.99% upon at least 61 days’ prior notice from the holder to us. As a result, you may not be able to exercise your pre-funded warrants for shares of our common stock at a time when it would be financially beneficial for you to do so. In such a circumstance, you could seek to sell your pre-funded warrants to realize value, but you may be unable to do so in the absence of an established trading market.

We will not receive any meaningful amount of additional funds upon the exercise of the pre-funded warrants.

Each pre-funded warrant will be exercisable until it is fully exercised and by means of payment of the nominal cash purchase price upon exercise or by means of a “cashless exercise” according to a formula set forth in the pre-funded warrant. Accordingly, we will not receive any meaningful additional funds upon the exercise of the pre-funded warrants.

USE OF PROCEEDS

We estimate that the net proceeds we will receive from this offering, after deducting the placement agent fees and estimated offering expenses payable by us, will be approximately $2.2 million. We will receive nominal proceeds, if any, from any cash exercise of pre-funded warrants.

We intend to use the net proceeds from this offering to fund market development and clinical evidence, The Clarity Trial, product development and quality, and general and administration support, and other general corporate purposes.

The foregoing represents our current intentions based upon our present plans and business conditions to use and allocate the net proceeds of this offering. Our management, however, will have significant flexibility and discretion to apply the net proceeds of this offering. If an unforeseen event occurs or business conditions change, we may use the proceeds of this offering differently than as described in this prospectus supplement. Unforeseen events or changed business conditions may result in application of the proceeds of this offering in a manner other than as described in this prospectus supplement.

To the extent that the net proceeds we receive from this offering are not immediately applied for the above purposes, we plan to invest the net proceeds in bank deposits.

DIVIDEND POLICY

We have never paid or declared any cash dividends on our common stock, and we do not anticipate paying any cash dividends on our common stock in the foreseeable future. We intend to retain all available funds and any future earnings to fund the development and expansion of our business. Any future determination to pay dividends will be at the discretion of our board of directors and will depend upon a number of factors, including our results of operations, financial condition, future prospects, contractual restrictions, restrictions imposed by applicable law and other factors our board of directors deems relevant. Our future ability to pay cash dividends on our stock may also be limited by the terms of any future debt or preferred securities or future credit facility.

DILUTION

If you invest in our shares of common stock or pre-funded warrants in this offering, your ownership interest will be diluted to the extent of the difference between the effective offering price per share of our common stock in this offering and the as adjusted net tangible book value per share of our common stock immediately after the closing of this offering.

As of June 30, 2025, our historical net tangible book value was $12.9 million, or $22.12 per share of common stock. Our historical net tangible book value per share is equal to our total tangible assets, less total liabilities, divided by the number of outstanding shares of common stock as of June 30, 2025.

After giving effect to the sale of 64,000 shares of common stock by us at the offering price of $8.36 per share, and pre-funded warrants to purchase up to 236,000 shares of common stock at the offering price of $8.35999 per pre-funded warrant (which equals the offering price of the common stock at which shares of our common stock are being sold in this offering less the $0.00001 per share exercise price of each such pre-funded warrant) (excluding shares of common stock issuable upon exercise of the pre-funded warrants, any proceeds which may be received upon the cash exercise of the pre-funded warrants or any resulting accounting associated with the exercise of the pre-funded warrants) and after deducting the placement agent fees and estimated offering expenses payable by us, our as adjusted net tangible book value as of June 30, 2025 would have been $15.1 million, or $17.13 per share of common stock. This represents an immediate decrease in as adjusted net tangible book value of $4.99 per share to our existing stockholders and an immediate increase of $8.50 per share to investors participating in this offering. The following table illustrates this per share dilution:

Assuming the pre-funded warrants were immediately and fully exercised, this would result in an as adjusted net tangible book value per share, after giving effect to this offering and warrant exercise, of $15.1 million, or $17.13 per share. This represents a decrease in net tangible book value of $4.99 per share to existing stockholders and accretion in net tangible book value per share of $8.50 to new investors participating in this offering.

To the extent that outstanding options, restricted stock units or warrants are exercised or shares of preferred stock are converted, or any additional options, restricted stock units, warrants or other equity awards are granted and exercised or become vested or other issuances of shares of our common stock are made, you will experience further dilution. In addition, we may choose to raise additional capital due to market conditions or strategic considerations even if we believe we have sufficient funds for our current or future operating plans. To the extent that additional capital is raised through the sale of common stock or securities exercisable, convertible or exchangeable into common stock, such issuance could result in further dilution to our stockholders.

The above discussion and table are based on 582,371 shares of our common stock outstanding as of June 30, 2025, and excludes the following items (which are calculated as of June 30, 2025):

To the extent that outstanding options or warrants are exercised, or outstanding restricted stock units vest and are settled, you will experience further dilution. In addition, we may choose to raise additional capital due to market conditions or strategic considerations even if we believe we have sufficient funds for our current or future operating plans.

DESCRIPTION OF CAPITAL STOCK

The following description is intended as a summary of our certificate of incorporation (which we refer to as our “charter”) and our bylaws, each of which is filed as an exhibit to the registration statement of which this prospectus supplement forms a part, and to the applicable provisions of the Delaware General Corporation Law. Because the following is only a summary, it does not contain all of the information that may be important to you. For a complete description, you should refer to our charter and bylaws.

We have two classes of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). Our shares of common stock are listed on The Nasdaq Stock Market under the trading symbol “ACON.” Our IPO Warrants are listed on the Nasdaq Stock Market under the trading symbol “ACONW.”

Authorized Capital Stock

Our authorized capital stock consists of 200,000,000 shares of common stock, par value $0.00001 per share, and 20,000,000 shares of preferred stock, par value $0.00001 per share.

Common Stock

The holders of our common stock are entitled to one vote for each share held on all matters submitted to a vote of the stockholders. The holders of our common stock do not have any cumulative voting rights. Holders of our common stock are entitled to receive ratably any dividends declared by our board of directors out of funds legally available for that purpose, subject to any preferential dividend rights of any outstanding preferred stock. Our common stock has no preemptive rights, conversion rights or other subscription rights or redemption or sinking fund provisions.

In the event of our liquidation, dissolution or winding up, holders of our common stock will be entitled to share ratably in all assets remaining after payment of all debts and other liabilities and any liquidation preference of any outstanding preferred stock. Each outstanding share of common stock is duly and validly issued, fully paid and non-assessable.

Preferred Stock

Our board of directors will have the authority, without further action by our stockholders, to issue up to 20,000,000 shares of preferred stock in one or more series and to fix the rights, preferences, privileges and restrictions thereof. These rights, preferences and privileges could include dividend rights, conversion rights, voting rights, terms of redemption, liquidation preferences, sinking fund terms and the number of shares constituting, or the designation of, such series, any or all of which may be greater than the rights of common stock. The issuance of our preferred stock could adversely affect the voting power of holders of common stock and the likelihood that such holders will receive dividend payments and payments upon our liquidation. In addition, the issuance of preferred stock could have the effect of delaying, deferring or preventing a change in control of our company or other corporate action.

We have no preferred stock outstanding following (i) the redemption in January 2025 of all outstanding shares of our Series B convertible preferred stock for $1.2 million in cash, and (ii) the conversion into shares of common stock January 2025 of all our outstanding shares of Series C convertible preferred stock.

Anti-Takeover Effects of Delaware Law and Provisions of Our Charter and Our Bylaws

Certain provisions of the DGCL and of our charter and our bylaws could have the effect of delaying, deferring or preventing another party from acquiring control of us and encouraging persons considering unsolicited tender offers or other unilateral takeover proposals to negotiate with our board of directors rather than pursue non-negotiated takeover attempts. These provisions include the items described below.

Delaware Anti-Takeover Statute

We are subject to the provisions of Section 203 of the DGCL. In general, Section 203 prohibits a publicly held Delaware corporation from engaging in a “business combination” with an “interested stockholder” for a three-year period following the time that this stockholder becomes an interested stockholder, unless the business combination is approved in a prescribed manner. Under Section 203, a business combination between a corporation and an interested stockholder is prohibited unless it satisfies one of the following conditions:

Section 203 defines a business combination to include:

In general, Section 203 defines an interested stockholder as any entity or person beneficially owning 15% or more of the outstanding voting stock of the corporation and any entity or person affiliated with or controlling or controlled by the entity or person.

Board Composition and Filling Vacancies

Our charter provides that stockholders may remove directors only for cause and only by the affirmative vote of the holders of at least two-thirds of our outstanding common stock. Our charter and bylaws authorize only our board of directors to fill vacant directorships, including newly created seats. In addition, the number of directors constituting our board of directors may only be set by a resolution adopted by a majority vote of our entire board of directors. These provisions would prevent a stockholder from increasing the size of our board of directors and then gaining control of our board of directors by filling the resulting vacancies with its own nominees. This makes it more difficult to change the composition of our board of directors but promotes continuity of management.

No Written Consent of Stockholders

Our charter and bylaws provide that all stockholder actions are required to be taken by a vote of the stockholders at an annual or special meeting, and that stockholders may not take any action by written consent in lieu of a meeting. This limit may lengthen the amount of time required to take stockholder actions and would prevent the amendment of our bylaws or removal of directors by our stockholders without holding a meeting of stockholders.

Meetings of Stockholders

Our charter and bylaws provide that only a majority of the members of our board of directors then in office, our Executive Chairman or our Chief Executive Officer may call special meetings of stockholders and only those matters set forth in the notice of the special meeting may be considered or acted upon at a special meeting of stockholders.

Advance Notice Requirements

Our bylaws provide advance notice procedures for stockholders seeking to bring matters before our annual meeting of stockholders or to nominate candidates for election as directors at our annual meeting of stockholders. Our bylaws also specify certain requirements regarding the form and content of a stockholder’s notice. These provisions might preclude our stockholders from bringing matters before our annual meeting of stockholders or from making nominations for directors at our annual meeting of stockholders if the proper procedures are not followed. We expect that these provisions might also discourage or deter a potential acquirer from conducting a solicitation of proxies to elect the acquirer’s own slate of directors or otherwise attempting to obtain control of our company.

Amendment to Our Charter and Bylaws

The DGCL, provides, generally, that the affirmative vote of a majority of the shares entitled to vote on any matter is required to amend a corporation’s certificate of incorporation or bylaws, unless a corporation’s certificate of incorporation or bylaws, as the case may be, requires a greater percentage. Our bylaws may be amended or repealed by a majority vote of our board of directors or the affirmative vote of the holders of at least two-thirds of the votes that all our stockholders would be entitled to cast in an annual election of directors. In addition, the affirmative vote of the holders of at least two-thirds of the votes that all our stockholders would be entitled to cast in an election of directors is required to amend or repeal or to adopt certain provisions of our charter.

Undesignated Preferred Stock

Our charter provides for 20,000,000 authorized shares of preferred stock. The existence of authorized but unissued shares of preferred stock may enable our board of directors to discourage an attempt to obtain control of us by means of a merger, tender offer, proxy contest or otherwise. For example, if in the due exercise of its fiduciary obligations, our board of directors were to determine that a takeover proposal is not in the best interests of our stockholders, our board of directors could cause shares of convertible preferred stock to be issued without stockholder approval in one or more private offerings or other transactions that might dilute the voting or other rights of the proposed acquirer or insurgent stockholder or stockholder group. In this regard, our charter grants our board of directors broad power to establish the rights and preferences of authorized and unissued shares of preferred stock. The issuance of shares of preferred stock could decrease the amount of earnings and assets available for distribution to holders of shares of common stock. The issuance may also adversely affect the rights and powers, including voting rights, of these holders and may have the effect of delaying, deterring or preventing a change in control of us.

Choice of Forum

Our charter provides that the Court of Chancery of the State of Delaware is the exclusive forum for the following types of actions or proceedings: any derivative action or proceeding brought on behalf of the Company, any action asserting a claim of breach of a fiduciary duty owed by any director, officer or other employee of the Company to the Company or the Company’s stockholders, any action asserting a claim against the Company arising pursuant to any provision of the DGCL or the Company’s certificate of incorporation or bylaws, or any action asserting a claim against the Company governed by the internal affairs doctrine. Our charter also provides that unless the Company consents in writing to the selection of an alternative forum, the federal district courts of the United States of America shall be the exclusive forum for the resolution of any complaint asserting a cause of action arising under the Securities Act. Despite the fact that the certificate of incorporation provides for this exclusive forum provision to be applicable to the fullest extent permitted by applicable law, Section 27 of the Exchange Act, creates exclusive federal jurisdiction over all suits brought to enforce any duty or liability created by the Exchange Act or the rules and regulations thereunder and Section 22 of the Securities Act, creates concurrent jurisdiction for federal and state courts over all suits brought to enforce any duty or liability created by the Securities Act or the rules and regulations thereunder. As a result, this provision of the Company’s certificate of incorporation would not apply to claims brought to enforce a duty or liability created by the Exchange Act, or any other claim for which the federal courts have exclusive jurisdiction. However, there is uncertainty as to whether a Delaware court would enforce the exclusive federal forum provisions for Securities Act claims and that investors cannot waive compliance with the federal securities laws and rules and regulations thereunder.

Unless the Company consents in writing to the selection of an alternative forum, the federal district courts of the United States of America shall be the exclusive forum for the resolution of any complaint asserting a cause of action arising under the Securities Act.

Nasdaq-Listed IPO Warrants

The Company has 20 IPO Warrants outstanding. The IPO Warrants represent the right to purchase 20 shares at an exercise price of $629,532. The IPO Warrants are exercisable beginning April 21, 2022, will terminate on the 5th anniversary date the IPO Warrants are first exercisable. The exercise price and number of shares for which each IPO Warrant may be exercised is subject to adjustment in the event of stock dividends, stock splits, reorganizations or similar events affecting our common stock.

Holders of the IPO Warrants may exercise their IPO Warrants to purchase shares of our common stock on or before the termination date by delivering an exercise notice, appropriately completed and duly signed. Payment of the exercise price for the number of shares for which the IPO Warrants is being exercised must be made within two trading days following such exercise. In the event that the registration statement relating to the IPO Warrant shares (the “IPO Warrant Shares”) is not effective, a holder of IPO Warrants may only exercise its IPO Warrants for a net number of IPO Warrant Shares pursuant to the cashless exercise procedures specified in the IPO Warrants. IPO Warrants may be exercised in whole or in part, and any portion of an IPO Warrant not exercised prior to the termination date shall be and become void and of no value. The absence of an effective registration statement or applicable exemption from registration does not alleviate our obligation to deliver common stock issuable upon exercise of an IPO Warrant.

Upon the holder’s exercise of an IPO Warrant, we will issue the shares of common stock issuable upon exercise of the IPO Warrant within three trading days of our receipt of notice of exercise, subject to timely payment of the aggregate exercise price therefor.

The shares of common stock issuable on exercise of the IPO Warrants will be, when issued in accordance with the IPO Warrants, duly and validly authorized, issued and fully paid and non-assessable. We will authorize and reserve at least that number of shares of common stock equal to the number of shares of common stock issuable upon exercise of all outstanding warrants.

If, at any time an IPO Warrant is outstanding, we consummate any fundamental transaction, as described in the IPO Warrants and generally including any consolidation or merger into another corporation, the consummation of a transaction whereby another entity acquires more than 50% of our outstanding common stock, or the sale of all or substantially all of our assets, or other transaction in which our common stock is converted into or exchanged for other securities or other consideration, the holder of any IPO Warrants will thereafter receive upon exercise of the IPO Warrants, the securities or other consideration to which a holder of the number of shares of common stock then deliverable upon the exercise or conversion of such IPO Warrants would have been entitled upon such consolidation or merger or other transaction.

The IPO Warrants are not exercisable by their holder to the extent (but only to the extent) that such holder or any of its affiliates would beneficially own in excess of 4.99% of our common stock.

Amendments and waivers of the terms of the IPO Warrants require the written consent of the holder of such IPO Warrants and us. The IPO Warrants were issued in book-entry form under a warrant agent agreement between V-Stock Transfer Company, Inc. as warrant agent, and us, and shall initially be represented by one or more book-entry certificates deposited with The Depository Trust Company (“DTC”) and registered in the name of Cede & Co., a nominee of DTC, or as otherwise directed by DTC.

You should review a copy of the warrant agent agreement and the form of the IPO Warrants, each of which are included as exhibits to the registration statement of which this prospectus supplement is a part.

Transfer Agent, Registrar, Warrant Agent

The transfer agent and registrar for our common stock and the warrant agent for our IPO Warrants is VStock Transfer LLC, 18 Lafayette Place, Woodmere, NY 11598.

As of September 30, 2025, there were 582,371 shares of our common stock outstanding, and approximately 213 stockholders of record.

Series A Common Warrants

In connection with our January 2025 unit public offering, we issued 18,242 Series A Common Warrants.

Duration and Exercise Price

Each Series A Common Warrant has an exercise price equal to $180.90 per share, became exercisable on March 5, 2025 and will expire on the fifth anniversary of the Initial Exercise Date. The exercise price and number of shares of Common Stock issuable upon exercise is subject to appropriate adjustment in the event of stock dividends, stock splits, reorganizations or similar events affecting our Common Stock and the exercise price.

Exercisability

The Series A Common Warrants will be exercisable, at the option of each holder, in whole or in part, by delivering to us a duly executed exercise notice accompanied by payment in full for the number of shares of our Common Stock purchased upon such exercise (except in the case of a cashless exercise as discussed below). Generally, a holder (together with its affiliates) may not exercise any portion of such holder’s Common Warrants to the extent that the holder would own more than 4.99% of the outstanding Common Stock (or at the election of a holder prior to the date of issuance, 9.99%) immediately after exercise, except that upon at least 61 days’ prior notice from the holder to us, the holder may increase the amount of ownership of outstanding stock after exercising the holder’s warrants up to 9.99% of the number of shares of our Common Stock outstanding immediately after giving effect to the exercise, as such percentage ownership is determined in accordance with the terms of the common warrants.

Cashless Exercise

If, at the time a holder exercises its Series A Common Warrants, a registration statement registering the issuance of the shares of Common Stock underlying the Series A Common Warrants under the Securities Act is not then effective or available for the issuance of such shares, then in lieu of making the cash payment otherwise contemplated to be made to us upon such exercise in payment of the aggregate exercise price, the holder may elect instead to receive upon such exercise (either in whole or in part) the net number of shares of Common Stock determined according to a formula set forth in the Series A Common Warrant.

Fundamental Transactions

In the event we consummate a merger or consolidation with or into another person or other reorganization event in which our Common Stock is converted or exchanged for securities, cash or other property, or we sell, lease, license, assign, transfer, convey or otherwise dispose of all or substantially all of our assets or we or another person acquire 50% or more of our outstanding shares of Common Stock, then following such event, the holders of the Warrants will be entitled to receive upon exercise of the Warrants the same kind and amount of securities, cash or property which the holders would have received had they exercised the Warrants immediately prior to such fundamental transaction. Any successor to us or surviving entity shall assume the obligations under the Warrants. Additionally, as more fully described in the Series A Common Warrants, in the event of certain fundamental transactions, the holders of the warrants will be entitled to receive consideration in an amount equal to the Black Scholes value of such warrants on the date of consummation of such transaction.

Exercise Price Adjustments

In addition, and subject to certain exemptions, if we sell, enter into an agreement to sell, or grant any option to purchase, or sell, enter into an agreement to sell, or grant any right to reprice (excluding certain defined “Exempt Issuances”), or otherwise dispose of or issue (or announce any offer, sale, grant or any option to purchase or other disposition) any shares of Common Stock, at an effective price per share less than the exercise price of the Series A Common Warrants then in effect, the exercise price of the Series A Common Warrants will be reduced to the lower of such price or the lowest VWAP during the five consecutive trading days immediately following such dilutive issuance or announcement thereof (subject to a floor price of $6.70, the “Floor Price”), and the number of shares issuable upon exercise will be proportionately adjusted such that the aggregate exercise price will remain unchanged.

If at any time on or after the date of issuance there occurs any share split, share dividend, share combination recapitalization or other similar transaction involving our Common Stock and the lowest daily volume weighted average price during the period commencing five consecutive trading days immediately preceding and the five consecutive trading days commencing on the date of such event is less than the exercise price of the Series A Common Warrants then in effect, then the exercise price of the Series A Common Warrants will be reduced to the lowest daily volume weighted average price during such period and the number of shares issuable upon exercise will be proportionately adjusted such that the aggregate price will remain unchanged, subject to the applicable floor price.

The exercise price and the number of shares issuable upon exercise of the Series A Common Warrants is subject to appropriate adjustment in the event of stock splits, stock dividends, recapitalizations, reorganizations, schemes, arrangements or similar events affecting our Common Stock.

Any reduction to the exercise prices of the Series A Warrants and resulting increase in the number of shares of Common Stock underlying the Warrants will be subject to the Floor Price.

Series B Common Warrants

In connection with our January 2025 unit public offering, we issued 18,242 Series B Common Warrants.

Duration and Exercise Price

Each Series B Common Warrant has an exercise price equal to $180.90 per share, is exercisable and will expire on the two and one-half (2.5) year anniversary of the Initial Exercise Date. The exercise price and number of shares of Common Stock issuable upon exercise is subject to appropriate adjustment in the event of stock dividends, stock splits, reorganizations or similar events affecting our Common Stock and the exercise price.

Exercisability

The Series B Common Warrants will be exercisable, at the option of each holder, in whole or in part, by delivering to us a duly executed exercise notice accompanied by payment in full for the number of shares of our Common Stock purchased upon such exercise (except in the case of a cashless exercise as discussed below). Generally, a holder (together with its affiliates) may not exercise any portion of such holder’s Series B Common Warrants to the extent that the holder would own more than 4.99% of the outstanding Common Stock (or at the election of a holder prior to the date of issuance, 9.99%) immediately after exercise, except that upon at least 61 days’ prior notice from the holder to us, the holder may increase the amount of ownership of outstanding stock after exercising the holder’s warrants up to 9.99% of the number of shares of our Common Stock outstanding immediately after giving effect to the exercise, as such percentage ownership is determined in accordance with the terms of the common warrants.

Cashless Exercise and Alternative Cashless Exercise

If, at the time a holder exercises its Series B Common Warrants, a registration statement registering the issuance of the shares of Common Stock underlying the Series B Common Warrants under the Securities Act is not then effective or available for the issuance of such shares, then in lieu of making the cash payment otherwise contemplated to be made to us upon such exercise in payment of the aggregate exercise price, the holder may elect instead to receive upon such exercise (either in whole or in part) the net number of shares of Common Stock determined according to a formula set forth in the Series B Common Warrant.

Holders may also effect an “alternative cashless exercise” at any time while the Series B Common Warrants are outstanding following the Initial Exercise Date. Under the alternate cashless exercise option, the holder of the Series B Common Warrant, has the right to receive an aggregate number of shares equal to the product of (i) the aggregate number of shares of Common Stock that would be issuable upon a cashless exercise of the Series B Common Warrant and (ii) 3.0.

Fundamental Transactions

In the event we consummate a merger or consolidation with or into another person or other reorganization event in which our Common Stock is converted or exchanged for securities, cash or other property, or we sell, lease, license, assign, transfer, convey or otherwise dispose of all or substantially all of our assets or we or another person acquire 50% or more of our outstanding shares of Common Stock, then following such event, the holders of the Series B Common Warrants will be entitled to receive upon exercise of the Series B Common Warrants the same kind and amount of securities, cash or property which the holders would have received had they exercised the Series B Common Warrants immediately prior to such fundamental transaction. Any successor to us or surviving entity shall assume the obligations under the Series B Common Warrants. Additionally, as more fully described in the Series B Common Warrants, in the event of certain fundamental transactions, the holders of the warrants will be entitled to receive consideration in an amount equal to the Black Scholes value of Series B Common Warrants on the date of consummation of such transaction.

Exercise Price Adjustments

If at any time on or after the date of issuance there occurs any share split, share dividend, share combination recapitalization or other similar transaction involving our Common Stock and the lowest daily volume weighted average price during the period commencing five consecutive trading days immediately preceding and the five consecutive trading days commencing on the date of such event is less than the exercise price of the Series B Common Warrants then in effect, then the exercise price of the Series B Common Warrants will be reduced to the lowest daily volume weighted average price during such period and the number of shares issuable upon exercise will be proportionately adjusted such that the aggregate price will remain unchanged, subject to the applicable floor price.

The exercise price and the number of shares issuable upon exercise of the Series B Common Warrants is subject to appropriate adjustment in the event of stock splits, stock dividends, recapitalizations, reorganizations, schemes, arrangements or similar events affecting our Common Stock.

Any reduction to the exercise prices of the Series B Warrants and resulting increase in the number of shares of Common Stock underlying the Series B Common Warrants will be subject to the Floor Price.

Pre-funded Warrants

Excluding the pre-funded warrants offered hereby, we have 1 pre-funded warrant outstanding with a weighted average exercise price equal to $1.45 with an expiration date of November 21, 2028.

Other Outstanding Warrants

As of September 30, 2025, we had 1,402 other outstanding common stock warrants (in addition to our IPO Warrants, our Series A warrants, Series B warrants, and pre-funded warrants described above). The terms of these warrants are (i) 9 warrants with a per share exercise price of $2,623 and expiring May 16, 2028, (ii) 221 warrants with a per share exercise price of $181 and expiring September 5, 2027, (iii) 5 warrants with a per share exercise price of $2,623 and expiring November 21, 2028, (iv) 22 warrants with a per share exercise price of $250, expiring August 27, 2029, (v) 1,144 warrants issued as part of a February 2024 public offering, with a per share exercise price of $5,246, expiring February 27, 2029, and (vi) 1 warrants at an exercise price equal to $787,277 per share, expiring April 26, 2027.

The per share exercise price of the warrants described in clauses (i) and (iv) above are subject to a ratchet adjustment if the Company issues securities at an effective per share price lower than the then effective warrant exercise price.

These warrants have a net exercise provision under which its holder may, in lieu of payment of the exercise price in cash, surrender the warrant and receive a net amount of shares based on the fair market value of the underlying shares at the time of exercise of the warrant after deduction of a number of shares equal in value to the aggregate exercise price. The warrants contain provisions for the adjustment of the exercise price and the number of shares issuable upon the exercise of the warrant in the event of certain stock dividends, stock splits, reorganizations, reclassifications and consolidations.

DESCRIPTION OF SECURITIES WE ARE OFFERING

Common Stock

We are offering 64,000 shares of common stock pursuant to this prospectus supplement and the accompanying prospectus. The material terms and provisions of our common stock and each other class of our securities which qualifies or limits our common stock are described under the caption “Description of Capital Stock – Common Stock” above.

Pre-Funded Warrants

The following is a brief summary of certain terms and conditions of the pre-funded warrants being offered by this prospectus supplement and the accompanying prospectus. The following description is subject in all respects to the provisions contained in the pre-funded warrants.

Form

The pre-funded warrants will be issued as individual warrant agreements to investors. The form of pre-funded warrant will be filed as an exhibit to a Current Report on Form 8-K that we expect to file with the SEC.

Term

The pre-funded warrants do not expire.

Exercisability

The pre-funded warrants are exercisable at any time on or after their original issuance. The pre-funded warrants are exercisable, at the option of each holder, in whole or in part by delivering to us a duly executed exercise notice and by payment in full in immediately available funds for the number of shares of common stock purchased upon such exercise. As an alternative to payment in immediately available funds, the holder may, in its sole discretion, elect to exercise the pre-funded warrant through a cashless exercise, in which case the holder would receive upon such exercise the net number of shares of common stock determined according to the formula set forth in the pre-funded warrant. No fractional shares of common stock will be issued in connection with the exercise of a pre-funded warrant. In lieu of fractional shares, we will pay the holder an amount in cash equal to the fractional amount multiplied by the fair market value of the common stock on the exercise date.

Exercise Limitations

We may not effect the exercise of any pre-funded warrant, and a holder will not be entitled to exercise any portion of any pre-funded warrant that, upon giving effect to such exercise, would cause the aggregate number of shares of our common stock beneficially owned by the holder (together with its attribution parties (as defined below)) to exceed 4.99% (or, at the election of the purchaser, 9.99%) of the number of shares of our common stock that would be outstanding immediately after giving effect to the exercise. However, any holder of a pre-funded warrant may increase or decrease such percentage to any other percentage not in excess of 9.99% upon at least 61 days’ prior notice from the holder to us. For purposes of the foregoing, “attribution parties” means, collectively, the following persons and entities with respect to any holder: (i) its direct or indirect affiliates, (ii) any person acting or who could be deemed to be acting as a Section 13(d) “group” together with the holder or any attribution parties and (iii) any other persons whose beneficial ownership of our common stock would or could be aggregated with the holder and/or any other attribution parties for purposes of Section 13(d) or Section 16 of the Exchange Act.

Exercise Price

The exercise price per whole share of our common stock purchasable upon the exercise of the pre-funded warrants is $0.00001 per share of common stock. The exercise price of the pre-funded warrants is subject to appropriate adjustment in the event of certain stock dividends and distributions, stock splits, stock combinations, reclassifications or similar events affecting our common stock and also upon any distributions of assets, including cash, stock or other property to our stockholders.

Transferability

Subject to applicable laws, the pre-funded warrants may be offered for sale, sold, transferred or assigned without our consent. The ownership of the pre-funded warrants and any transfers of the pre-funded warrants will be registered in a warrant register maintained by the Company.

Exchange Listing

There is no established trading market for the pre-funded warrants, and we do not expect a market to develop. We do not plan on applying to list the pre-funded warrants on The Nasdaq Capital Market or any other national securities exchange or any nationally recognized trading system.

Fundamental Transactions

In the event of a fundamental transaction, as described in the pre-funded warrants and generally including any reorganization, recapitalization or reclassification of our common stock, the sale, transfer or other disposition of all or substantially all of our properties or assets, our consolidation or merger with or into another person, the acquisition of 50% or more of our outstanding common stock, or any person or group becoming the beneficial owner of 50% or more of the voting power represented by our outstanding common stock, the holders of the pre-funded warrants will be entitled to receive upon exercise of the pre-funded warrants the kind and amount of securities, cash or other property that the holders would have received had they exercised the pre-funded warrants immediately prior to such fundamental transaction without regard to any limitations on exercise contained in the pre-funded warrants. In the event a holder does not exercise its pre-funded warrants in connection with a fundamental transaction, such holder’s pre-funded warrants will be deemed exercised in full pursuant to the “cashless exercise” mechanic described above upon the consummation of such transaction.

Rights as a Stockholder

Except by virtue of such holder’s ownership of shares of our common stock, the holder of a pre-funded warrant does not have the rights or privileges of a holder of our common stock, including any voting rights, until the holder exercises the pre-funded warrant. In the event of certain distributions, including cash dividends, if any, to all holders of our common stock for no consideration, the holder of a pre-funded warrant shall be entitled to participate in such distributions to the same extent as if such holder held the number of shares of our common stock acquirable upon complete exercise of its pre-funded warrant (without regard to any limitations on exercise). If such distribution would result in such holder and its affiliates to exceed the exercise limitations described above, a portion of such distribution shall be held in abeyance for the benefit of such holder until such time as the ownership limitations would not be exceeded.

PLAN OF DISTRIBUTION

Pursuant to an engagement agreement dated October 13, 2025, we engaged Dawson James Securities, Inc., or the placement agent, to act as our exclusive placement agent in connection with this offering of our shares of common stock and pre-funded warrants pursuant to this prospectus supplement and accompanying prospectus. Under the terms of the engagement agreement, the placement agent agreed to be our exclusive placement agent, on a reasonable best efforts basis, in connection with the issuance and sale by us of our shares of common stock and pre-funded warrants in this takedown from our shelf registration statement. The terms of this offering were subject to market conditions and negotiations between us, the placement agent and prospective investor. The engagement agreement does not give rise to any commitment by the placement agent to purchase any of our shares of common stock or pre-funded warrants, and the placement agent will have no authority to bind us by virtue of the engagement agreement. Further, the placement agent does not guarantee that it will be able to raise new capital in any prospective offering. The placement agent may engage sub-agents or selected dealers to assist with the offering.

We entered into a securities purchase agreement dated October 13, 2025 directly with investor in connection with this offering, and we will only sell to this investor who entered into the securities purchase agreement.

We expect to deliver the shares of our common stock and pre-funded warrants being offered pursuant to this prospectus supplement on or about October 14, 2025.

We have agreed to pay the placement agent a total cash fee equal to 7.0% of the gross proceeds of this offering. We have also agreed to reimburse the placement agent at closing for expenses incurred by it in connection with the offering up to a maximum of $50,000.

We estimate the total expenses payable by us for this offering will be approximately $100,000, which amount excludes the placement agent's fees and expenses.

We have agreed to indemnify the placement agent and specified other persons against some civil liabilities, including liabilities under the Securities Act, and the Securities Exchange Act of 1934, as amended, or the Exchange Act, and to contribute to payments that the placement agent may be required to make in respect of such liabilities. In addition, we will indemnify the purchaser of shares of our common stock in this offering against liabilities arising out of or relating to (i) any breach of any of the representations, warranties, covenants or agreements made by us in the securities purchase agreement or related documents or (ii) any action instituted against a purchaser by a third party (other than a third party who is affiliated with such purchaser) with respect to the securities purchase agreement or related documents and the transactions contemplated thereby, subject to certain exceptions.

A form of the securities purchase agreement will be included as an exhibit to a Current Report on Form 8-K filed with the SEC in connection with this offering.

The placement agent may be deemed to be an underwriter within the meaning of Section 2(a)(11) of the Securities Act, and any commissions received by it and any profit realized on the resale of the securities sold by it while acting as principal might be deemed to be underwriting discounts or commissions under the Securities Act. As an underwriter, the placement agent would be required to comply with the requirements of the Securities Act and the Exchange Act, including, without limitation, Rule 415(a)(4) under the Securities Act and Rule 10b-5 and Regulation M under the Exchange Act. These rules and regulations may limit the timing of purchases and sales of shares of common stock and warrants by the placement agent acting as principal. Under these rules and regulations, the placement agent:

We have also agreed, subject to certain exceptions, until the earlier of (i) sixty (60) days following the closing date of the offering and (ii) the five (5) consecutive trading days that our common stock closes at above $10.00 as reported on The Nasdaq Capital Market, not to (i) issue, enter into any agreement to issue or announce the issuance or proposed issuance of any shares of common stock (or common stock equivalents) or (ii) file any registration statement or amendment or supplement thereto, other than this prospectus supplement. In addition, subject to an exception, until the earlier of (i) sixty (60) days following the closing date of the offering and (ii) the five (5) consecutive trading days that our common stock closes at above $10.00 as reported on The Nasdaq Capital Market, we shall be prohibited from effecting or entering into an agreement to effect any issuance common stock (or common stock equivalent or a combination of units thereof) involving a transaction in which we (i) issue or sell any debt or equity securities that are convertible into, exchangeable or exercisable for, or include the right to receive, additional shares of common stock either (A) at a conversion price, exercise price or exchange rate or other price that is based upon, and/or varies with, the trading prices of or quotations for the shares of common stock at any time after the initial issuance of such debt or equity securities or (B) with a conversion, exercise or exchange price that is subject to being reset at some future date after the initial issuance of such debt or equity security or upon the occurrence of specified or contingent events directly or indirectly related to our business or the market for our common stock or (ii) enter into, or effect a transaction under, any agreement, including, but not limited to, an equity line of credit or an “at-the-market offering”, whereby we may issue securities at a future determined price.

Other Relationships

The placement agent acted as our exclusive placement agent in two registered direct offerings and one underwritten offering consummated in January 2025. The placement agent and its affiliates may in the future perform various financial advisory and investment banking services for us, for which they will receive customary fees and expenses.

Trading Market

Our common stock is traded on the Nasdaq Capital Market under the symbol “ACON.” There is no established public trading market for the pre-funded warrants, and we do not expect a market to develop. We do not intend to list the pre-funded warrants on The Nasdaq Capital Market, any other national securities exchange or any recognized trading system.

Transfer Agent

The transfer agent for our common stock to be issued in this offering is VStock Transfer, LLC, located at 18 Lafayette Pl, Woodmere, NY 11598.

MATERIAL U.S. FEDERAL INCOME TAX CONSIDERATIONS FOR INVESTORS IN COMMON STOCK AND PRE-FUNDED WARRANTS

The following summary describes the material U.S. federal income tax considerations applicable to the acquisition, ownership and disposition of our common stock and pre-funded warrants acquired in this offering. This discussion does not address all aspects of U.S. federal income taxes, does not discuss the potential application of the alternative minimum tax or Medicare Contribution tax and does not deal with state or local taxes, U.S. federal gift and estate tax laws or any non-U.S. tax consequences that may be relevant to investors in light of their particular circumstances.

Special rules different from those described below may apply to certain investors that are subject to special treatment under the Internal Revenue Code of 1986, as amended, or the Code, such as:

Such investors are urged to consult their own tax advisors to determine the U.S. federal, state, local and other tax consequences that may be relevant to them.

Furthermore, the discussion below is based upon the provisions of the Code, and Treasury regulations, rulings and judicial decisions thereunder as of the date hereof, and such authorities may be repealed, revoked or modified, possibly retroactively, and are subject to differing interpretations which could result in U.S. federal income tax consequences different from those discussed below. We have not requested a ruling from the Internal Revenue Service, or the IRS, with respect to the statements made and the conclusions reached in the following summary, and there can be no assurance that the IRS will agree with such statements and conclusions or will not take a contrary position regarding the tax consequences described herein, or that any such contrary position would not be sustained by a court.

For the purposes of this discussion, a “U.S. Holder” means a beneficial owner of our common stock or pre-funded warrants, other than a partnership or other pass-through entity, that is, for U.S. federal income tax purposes, (a) an individual citizen or resident of the United States, (b) a corporation (or other entity taxable as a corporation for U.S. federal income tax purposes), created or organized in or under the laws of the United States, any state thereof or the District of Columbia, (c) an estate the income of which is subject to U.S. federal income taxation regardless of its source, or (d) a trust if it (1) is subject to the primary supervision of a court within the United States and one or more “United States persons” (within the meaning of Section 7701(a)(30) of the Code) have the authority to control all substantial decisions of the trust or (2) has a valid election in effect under applicable U.S. Treasury regulations to be treated as a United States person.

If you are an individual non-U.S. citizen, you may, in some cases, be deemed to be a resident alien (as opposed to a nonresident alien) by virtue of being present in the United States for at least 31 days in the calendar year and for an aggregate of at least 183 days during a three-year period ending in the current calendar year. Generally, for this purpose, all the days present in the current year, one-third of the days present in the immediately preceding year, and one-sixth of the days present in the second preceding year, are counted.

Resident aliens are generally subject to U.S. federal income tax as if they were U.S. citizens. Individuals who are uncertain of their status as resident or nonresident aliens for U.S. federal income tax purposes are urged to consult their own tax advisors regarding the U.S. federal income tax consequences of the ownership or disposition of our common stock or pre-funded warrants.

PERSONS CONSIDERING THE PURCHASE OF OUR COMMON STOCK OR PRE-FUNDED WARRANTS PURSUANT TO THIS OFFERING SHOULD CONSULT THEIR OWN TAX ADVISORS CONCERNING THE U.S. FEDERAL INCOME TAX CONSEQUENCES OF ACQUIRING, OWNING AND DISPOSING OF OUR COMMON STOCK AND PRE-FUNDED WARRANTS IN LIGHT OF THEIR PARTICULAR SITUATIONS AS WELL AS ANY CONSEQUENCES ARISING UNDER THE LAWS OF ANY OTHER TAXING JURISDICTION, INCLUDING ANY STATE, LOCAL OR NON-U.S. TAX CONSEQUENCES OR ANY U.S. FEDERAL NON-INCOME TAX CONSEQUENCES, AND THE POSSIBLE APPLICATION OF TAX TREATIES.

Characterization of the Pre-Funded Warrants for Tax Purposes

Although the characterization of the pre-funded warrants for U.S. federal income tax purposes is not entirely clear, because the exercise price of the pre-funded warrants is a nominal amount, we expect to treat the pre-funded warrants as our common stock for U.S. federal income tax purposes and a holder of pre-funded warrants should generally be taxed in the same manner as a holder of common stock as described below. Accordingly, for U.S. federal income tax purposes, no gain or loss should be recognized upon the exercise of a pre-funded warrant, and upon exercise, the holding period of the share of common stock received should include the holding period of the pre-funded warrant. Similarly, the tax basis of a share of common stock received upon exercise of a pre-funded warrant should include the tax basis of the pre-funded warrant increased by the exercise price of $0.00001 per share. The balance of this discussion generally assumes that the characterization described above is respected for U.S. federal income tax purposes.

Our position with respect to the characterization of pre-funded warrants is not binding on the IRS and the IRS may treat the pre-funded warrants as warrants to acquire our common stock and, if so, the amount and character of your gain with respect to an investment in our pre-funded warrants could change. You should consult your tax advisor regarding the characterization of pre-funded warrants for U.S. federal income tax purposes, and the consequences to you of an investment in the pre-funded warrants based on your own particular facts and circumstances.

Tax Consequences to U.S. Holders

Distributions on Common Stock and Pre-funded Warrants

As stated under “Dividend Policy,” we do not expect to make distributions on our common stock (or pre-funded warrants) in the foreseeable future. In the event that we do make distributions of cash or other property, distributions paid on common stock (or pre-funded warrants) will be treated as a dividend to the extent paid out of our current or accumulated earnings and profits (as determined under U.S. federal income tax principles), and will be includible in your income as ordinary income when received. However, with respect to dividends received by individuals, such dividends are generally taxed at the lower applicable long-term capital gains rates, provided certain holding period requirements are satisfied. Distributions in excess of our current and accumulated earnings and profits will be treated as a return of capital to the extent of a U.S. Holder’s tax basis in the common stock (or pre-funded warrant) and thereafter as capital gain from the sale or exchange of such common stock (or pre-funded warrant). The tax treatment of such gain is further described in “ —Sale or Other Disposition of Common Stock or Pre-Funded Warrants” below. Dividends received by a corporation may be eligible for a dividends received deduction, subject to applicable limitations. Any such distributions will also be subject to the discussions below under the section titled “ —Information Reporting and Backup Withholding.”

A U.S. Holder of a pre-funded warrant is expected to receive any distributions paid with respect to common stock prior to the exercise of the pre-funded warrant and, in such case, would be taxed in the same manner as a U.S. Holder of common stock that receives such a distribution. However, under certain circumstances, it is possible for cash to be held in abeyance for the U.S. Holder until a pre-funded warrant is exercised or the ownership limitations (described under “Description of Pre-Funded Warrants”) would not be exceeded, at which time such U.S. Holder shall be entitled to receive distributions. It is possible that such entitlement to distributions could cause the declaration of a distribution on our common stock to be currently taxable to U.S. Holders of pre-funded warrants, including under the principles governing Section 305 of the Code, even though the holders will not receive such distributions until a future date. Additionally, it is possible that other adjustments to the terms of the pre-funded warrant may be considered constructive distributions under Section 305 of the Code and taxable as discussed above. A holder of a pre-funded warrant should consult its tax advisor regarding the tax treatment of any distribution with respect to such pre-funded warrant that is held in abeyance in connection with any applicable limitation on the holder’s beneficial ownership of our common stock.

Sale or Other Disposition of Common Stock or Pre-Funded Warrants

For U.S. federal income tax purposes, gain or loss realized on the sale or other disposition of common stock or pre-funded warrants will be capital gain or loss, and will be long-term capital gain or loss if you have held the common stock or pre-funded warrants for more than one year. The amount of the gain or loss will equal the difference between your tax basis in the common stock or pre-funded warrants disposed of and the amount realized on the disposition. Long-term capital gains recognized by non-corporate U.S. Holders will be subject to reduced tax rates. The deductibility of capital losses is subject to limitations.

Information Reporting and Backup Withholding

Information reporting requirements generally will apply to any payments of dividends on our common stock and pre-funded warrants, constructive dividends on our pre-funded warrants, and gross proceeds on the sale or other disposition of our common stock and pre-funded warrants, unless the U.S. Holder is an exempt recipient (such as a corporation). Backup withholding (currently at a 24% rate) will apply to those payments if the U.S. Holder fails to provide its correct taxpayer identification number, or certification of exempt status, or if the U.S. Holder is notified by the IRS that it has failed to report in full payments of interest and dividend income. Any amounts withheld under the backup withholding rules will be allowed as a refund or a credit against a U.S. Holder’s U.S. federal income tax liability provided the required information is furnished timely to the IRS.

Tax Consequences to Non-U.S. Holders

For purposes of this discussion, a Non-U.S. Holder is a beneficial owner of our common stock or pre-funded warrants, other than a partnership or other pass-through entity that is (i) a non-resident alien individual, (ii) a corporation or other foreign organization taxable as a corporation for U.S. federal income tax purposes that is created or organized in or under laws other than the laws of the United States, any state thereof, or the District of Columbia; (iii) an estate, the income of which is not subject to U.S. federal income tax on a net income basis; or (iv) a trust the income of which is not subject to U.S. federal income tax on a net income basis and that (1) has not made an election to be treated as a U.S. person under applicable U.S. Treasury Regulations and (2) either (i) is not subject to the primary supervision of a court within the United States or (ii) is not subject to the substantial control of one or more U.S. persons is not a U.S. Holder. If you are not a Non-U.S. Holder, this section does not apply to you.

Distributions on Common Stock and Pre-funded Warrants

As stated under “Dividend Policy,” we do not expect to make any distributions on our common stock (or pre-funded warrants) in the foreseeable future. If we do make distributions on our common stock (or pre-funded warrants), however, such distributions made to a Non-U.S. Holder will constitute dividends for U.S. tax purposes to the extent paid out of our current or accumulated earnings and profits (as determined under U.S. federal income tax principles). Distributions in excess of our current and accumulated earnings and profits will constitute a return of capital that is applied against and reduces, but not below zero, a Non-U.S. Holder’s adjusted tax basis in our common stock (or pre-funded warrants). Any remaining excess will be treated as gain realized as described below under the section titled “ —Sale or Other Disposition of Common Stock and Pre-Funded Warrants.”

Any distribution on our common stock (or pre-funded warrants) that is treated as a dividend paid to a Non-U.S. Holder that is not effectively connected with the holder’s conduct of a trade or business in the United States will generally be subject to withholding tax at a 30% rate or such lower rate as may be specified by an applicable income tax treaty between the United States and the Non-U.S. Holder’s country of residence. To obtain a reduced rate of withholding under a treaty, a Non-U.S. Holder generally will be required to provide the applicable withholding agent with a properly executed IRS Form W-8BEN, IRS Form W-8BEN-E or other appropriate form, certifying the Non-U.S. Holder’s entitlement to benefits under that treaty. Such form must be provided prior to the payment of dividends and must be updated periodically. If a Non-U.S. Holder holds stock through a financial institution or other agent acting on the holder’s behalf, the holder will be required to provide appropriate documentation to such agent. The holder’s agent may then be required to provide certification to the applicable withholding agent, either directly or through other intermediaries. If you are eligible for a reduced rate of U.S. withholding tax under an income tax treaty, you should consult with your own tax advisor to determine if you are able to obtain a refund or credit of any excess amounts withheld by timely filing an appropriate claim with the IRS.

We generally are not required to withhold tax on dividends paid (or constructive dividends deemed paid) to a Non-U.S. Holder that are effectively connected with the holder’s conduct of a trade or business within the United States (and, if required by an applicable income tax treaty, are attributable to a permanent establishment that the holder maintains in the United States) if a properly executed IRS Form W-8ECI, stating that the dividends are so connected, is furnished to us (or, if shares of our common stock are held through a financial institution or other agent, to the applicable withholding agent). In general, such effectively connected dividends will be subject to U.S. federal income tax on a net income basis at the regular graduated rates applicable to U.S. persons, unless a specific treaty exemption applies. A corporate Non-U.S. Holder receiving effectively connected dividends may also be subject to an additional “branch profits tax,” which is imposed, under certain circumstances, at a rate of 30% (or such lower rate as may be specified by an applicable treaty) on the corporate Non-U.S. Holder’s effectively connected earnings and profits, subject to certain adjustments.

A Non-U.S. Holder of a pre-funded warrant is expected to receive any distributions paid with respect to common stock prior to the exercise of the pre-funded warrant and, in such case, would be taxed in the same manner as Non-U.S. Holder of common stock that receives such a distribution. However, under certain circumstances, it is possible for cash to be held in abeyance for a Non-U.S. Holder until a pre-funded warrant is exercised or the ownership limitations (described under “Description of Pre-Funded Warrants”) would not be exceeded, at which time the Non-U.S. Holder shall be entitled to receive distributions. It is possible that such entitlement to distributions could cause the declaration of a distribution on our common stock to be currently taxable to Non-U.S. Holders of pre-funded warrants, including under the principles governing Section 305 of the Code, even though such holders will not receive the distributions until a future date. Additionally, it is possible that other adjustments to the terms of the pre-funded warrant may be considered constructive distributions under Section 305 of the Code and taxable as discussed above. A holder of a pre-funded warrant should consult its tax advisor regarding the tax treatment of any distribution with respect to such pre-funded warrant that is held in abeyance in connection with any applicable limitation on the holder’s beneficial ownership of our common stock.

See also the section below titled “—Foreign Accounts” for additional withholding rules that may apply to dividends paid to certain foreign financial institutions or non-financial foreign entities.

Sale or Other Disposition of Common Stock and Pre-Funded Warrants

Subject to the discussion below under the sections titled “—Information Reporting and Backup Withholding” and “—Foreign Accounts,” a Non-U.S. Holder generally will not be subject to U.S. federal income or withholding tax with respect to gain realized on a sale or other disposition of our common stock or pre-funded warrants unless (a) the gain is effectively connected with a trade or business of the holder in the United States (and, if required by an applicable income tax treaty, is attributable to a permanent establishment that the holder maintains in the United States), (b) the Non-U.S. Holder is a nonresident alien individual and is present in the United States for a period or periods aggregating 183 or more days in the taxable year of the disposition and certain other conditions are met, or (c) we are or have been a “United States real property holding corporation” within the meaning of Code Section 897(c)(2), unless any class of our stock is regularly traded on an established securities market and the Non-U.S. Holder disposes of such class of stock and holds no more than 5% of such class of stock, directly or indirectly, actually or constructively, during the shorter of the 5-year period ending on the date of the disposition or the period that the Non-U.S. Holder held such class of stock.

If you are a Non-U.S. Holder described in (a) above, you will be required to pay tax on the net gain derived from the sale at the regular graduated U.S. federal income tax rates applicable to U.S. persons, unless a specific treaty exemption applies. Corporate Non-U.S. Holders described in (a) above may also be subject to the additional branch profits tax at a 30% rate or such lower rate as may be specified by an applicable income tax treaty. If you are an individual Non-U.S. Holder described in (b) above, you will be required to pay a flat 30% tax on the gain derived from the sale, which gain may be offset by certain U.S. source capital losses (even though you are not considered a resident of the United States), provided you have timely filed U.S. federal income tax returns with respect to such losses. With respect to (c) above, in general, we would be a U.S. real property holding corporation if interests in U.S. real estate comprised (by fair market value) at least half of our worldwide real property interests plus our other assets used or held for use in a trade or business. We believe that we are not, and do not anticipate becoming, a U.S. real property holding corporation. However, there can be no assurance that we will not become a U.S. real property holding corporation in the future.

Information Reporting and Backup Withholding

Generally, we or certain financial middlemen must report information to the IRS with respect to any dividends we pay on our common stock or pre-funded warrants and any constructive dividends deemed paid on pre-funded warrants including the amount of any such dividends, the name and address of the recipient, and the amount, if any, of tax withheld. A similar report is sent to the holder to whom any such dividends are paid. Pursuant to tax treaties or certain other agreements, the IRS may make its reports available to tax authorities in the recipient’s country of residence.

Dividends paid by us (or our paying agents) to a Non-U.S. Holder may also be subject to U.S. backup withholding. U.S. backup withholding generally will not apply to a Non-U.S. Holder who provides a properly executed IRS Form W-8BEN or IRS Form W-8BEN-E, as applicable, or otherwise establishes an exemption, provided that the applicable withholding agent does not have actual knowledge or reason to know the holder is a U.S. person.

Under current U.S. federal income tax law, U.S. information reporting and backup withholding requirements generally will apply to the proceeds of a disposition of our common stock or pre-funded warrants effected by or through a U.S. office of any broker, U.S. or non-U.S., unless the Non-U.S. Holder provides a properly executed IRS Form W-8BEN or IRS Form W-8BEN-E, as applicable, or otherwise meets documentary evidence requirements for establishing non-U.S. person status or otherwise establishes an exemption. Generally, U.S. information reporting and backup withholding requirements will not apply to a payment of disposition proceeds to a Non-U.S. Holder where the transaction is effected outside the United States through a non-U.S. office of a non-U.S. broker. Information reporting and backup withholding requirements may, however, apply to a payment of disposition proceeds if the broker has actual knowledge, or reason to know, that the holder is, in fact, a U.S. person. For information reporting purposes, certain brokers with substantial U.S. ownership or operations will generally be treated in a manner similar to U.S. brokers.

Backup withholding is not an additional tax. If backup withholding is applied to you, you should consult with your own tax advisor to determine whether you have overpaid your U.S. federal income tax, and whether you are able to obtain a tax refund or credit of the overpaid amount.

Foreign Accounts

In addition to, and separately from the withholding rules described above, U.S. federal withholding taxes may apply under the Foreign Account Tax Compliance Act, or FATCA, on certain types of payments, including dividends to non-U.S. financial institutions and certain other non-U.S. entities. Specifically, a 30% withholding tax may be imposed on dividends paid in respect of our common stock or pre-funded warrants, constructive distributions deemed paid with respect to pre-funded warrants and the gross proceeds of the disposition on our common stock or pre-funded warrants paid to a “foreign financial institution” or a “non-financial foreign entity” (each as defined in the Code), unless (1) the foreign financial institution agrees to undertake certain diligence and reporting obligations, (2) the non-financial foreign entity either certifies it does not have any “substantial United States owners” (as defined in the Code) or furnishes identifying information regarding each substantial United States owner, or (3) the foreign financial institution or non-financial foreign entity otherwise qualifies for an exemption from these rules. The 30% federal withholding tax described in this paragraph cannot be reduced under an income tax treaty with the United States. If the payee is a foreign financial institution and is subject to the diligence and reporting requirements in (1) above, it must enter into an agreement with the U.S. Department of the Treasury requiring, among other things, that it undertake to identify accounts held by certain “specified United States persons” or “United States-owned foreign entities” (each as defined in the Code), annually report certain information about such accounts, and withhold 30% on certain payments to non-compliant foreign financial institutions and certain other account holders. Foreign financial institutions located in jurisdictions that have an intergovernmental agreement with the United States governing FATCA may be subject to different rules.

The Treasury Secretary has issued proposed regulations providing that the withholding provisions under FATCA do not apply with respect to payment of gross proceeds from a sale or other disposition of our common stock or pre-funded warrants, which may be relied upon by taxpayers until final regulations are issued. Prospective investors should consult their tax advisors regarding the potential application of withholding under FATCA to their investment in our common stock or pre-funded warrants.

EACH PROSPECTIVE INVESTOR SHOULD CONSULT ITS OWN TAX ADVISOR REGARDING THE TAX CONSEQUENCES OF PURCHASING, HOLDING AND DISPOSING OF OUR COMMON STOCK AND PRE-FUNDED WARRANTS, INCLUDING THE CONSEQUENCES OF ANY PROPOSED CHANGE IN APPLICABLE LAW, AS WELL AS TAX CONSEQUENCES ARISING UNDER ANY STATE, LOCAL, NON-U.S. OR U.S. FEDERAL NON-INCOME TAX LAWS SUCH AS ESTATE AND GIFT TAX.

INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

We are incorporating by reference into this prospectus supplement and the accompanying prospectus the documents listed below that we have filed with the SEC, which means we can disclose important information to you by referring you to those documents. The information incorporated by reference is considered to be a part of this prospectus supplement and the accompanying prospectus. We incorporate by reference:

In addition, we also incorporate by reference into this prospectus supplement and the accompanying prospectus all documents (other than current reports furnished under Item 2.02 or Item 7.01 of Form 8-K and exhibits filed on that form which are related to those items) that are filed by us with the SEC pursuant to Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act before the termination of the offering of our common stock to which this prospectus supplement and the accompanying prospectus relate, except for any document or portion of such document deemed to be “furnished” and not filed in accordance with SEC rules.

The information relating to us contained in this prospectus supplement and the accompanying prospectus does not purport to be comprehensive and should be read together with the information contained in the documents incorporated or deemed to be incorporated by reference into this prospectus supplement and the accompanying prospectus.

We will provide to each person, including any beneficial owner, to whom a prospectus supplement and accompanying prospectus is delivered, without charge, upon written or oral request, a copy of any or all of the documents that are incorporated by reference into this prospectus supplement and the accompanying prospectus but not delivered with the prospectus supplement and accompanying prospectus, including exhibits that are specifically incorporated by reference into such documents. You may request a copy of these filings without charge by contacting Greg Gould, c/o Aclarion, Inc., at 8181 Arista Place, Suite 100, Broomfield, Colorado 80021 or by telephone at (833) 275-2266.

Information that we file later with the SEC and that is incorporated by reference in this prospectus supplement will automatically update and supersede information contained in this prospectus supplement and the accompanying prospectus as if that information were included in this prospectus supplement and the accompanying prospectus. That information will become part of this prospectus supplement and the accompanying prospectus from the date the information is filed with the SEC.

WHERE YOU CAN FIND MORE INFORMATION

We are subject to the informational requirements of the Exchange Act and, accordingly, file periodic reports, proxy statements and other information with the SEC. You can obtain these reports, proxy statements and other information that we file electronically with the SEC on the SEC’s website at www.sec.gov. Our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K and amendments to these reports that are filed or furnished pursuant to Section 13 of the Exchange Act are available on our website at www.aclarion.com, as soon as reasonably practicable after they are electronically filed with the SEC. The information on our website is not part of this prospectus supplement or the accompanying prospectus, except to the extent filed with the SEC and specifically incorporated into this prospectus supplement or the accompanying prospectus by reference.

This prospectus supplement and the accompanying prospectus form part of a registration statement that we filed with the SEC under the Securities Act. This prospectus supplement does not contain all of the information presented in the registration statement and its exhibits in accordance with SEC rules. Our descriptions in this prospectus supplement of the provisions of documents filed as exhibits to the registration statement or otherwise filed with the SEC are only summaries of the terms of those documents and are not intended to be comprehensive. For a complete description of the content of the documents, you should obtain copies of the full document.

LEGAL MATTERS

The validity of the securities offered hereby will be passed upon for us by Carroll Legal LLC, Denver, Colorado. Haynes and Boone, LLP, New York, New York, is acting as counsel for Dawson James Securities, Inc. in connection with this offering.

EXPERTS

Haynie & Company, independent registered public accounting firm, has audited the financial statements of the Company as of December 31, 2024 and 2023, and for the year ended December 31, 2024 and 2023, as set forth in their report thereon appearing in Aclarion, Inc.’s Annual Report on Form 10-K for the year ended December 31, 2024, and incorporated by reference herein. Such financial statements are incorporated by reference herein in reliance upon such report given on their authority as experts in accounting and auditing.

PROSPECTUS

ACLARION, INC.

$150,000,000

COMMON STOCK
PREFERRED STOCK
WARRANTS

SUBSCRIPTION RIGHTS
DEBT SECURITIES
UNITS

We may offer and sell from time to time, in one or more series, any one of the following securities of our company, for total gross proceeds of up to $150,000,000:

We may offer and sell these securities separately or together, in one or more series or classes and in amounts, at prices and on terms described in one or more offerings. We may offer securities through underwriting syndicates managed or co-managed by one or more underwriters or dealers, through agents or directly to purchasers. The prospectus supplement for each offering of securities will describe in detail the plan of distribution for that offering. For general information about the distribution of securities offered, please see “Plan of Distribution” in this prospectus.

Each time our securities are offered, we will provide a prospectus supplement containing more specific information about the particular offering and attach it to this prospectus. The prospectus supplements may also add, update or change information contained in this prospectus.

This prospectus may not be used to offer or sell securities without a prospectus supplement which includes a description of the method and terms of this offering.

Our common stock is quoted on the Nasdaq Capital Market under the symbol “ACON.” The last reported sale price of our common stock on the Nasdaq Capital Market on April 24, 2025 was $7.64 per share.

Our IPO warrants are quoted on the Nasdaq Capital Market under the symbol “ACONW.” The last reported sale price of our IPO warrants on the Nasdaq Capital Market on April 24, 2025 was $0.0401 per warrant.

If we decide to seek a listing of any preferred stock, purchase contracts, warrants, subscriptions rights, depositary shares, debt securities or units offered by this prospectus, the related prospectus supplement will disclose the exchange or market on which the securities will be listed, if any, or where we have made an application for listing, if any.

Investing in our securities is highly speculative and involves a significant degree of risk. See “Risk Factors” beginning on page 6 and the risk factors in our most recent Annual Report on Form 10-K, which is incorporated by reference herein, as well as in any other recently filed quarterly or current reports and, if any, in the relevant prospectus supplement. We urge you to carefully read this prospectus and the accompanying prospectus supplement, together with the documents we incorporate by reference, describing the terms of these securities before investing.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or passed upon the adequacy or accuracy of this prospectus. Any representation to the contrary is a criminal offense.

The date of this prospectus is May 5, 2025.

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About This Prospectus

This prospectus is part of a registration statement on Form S-3 that we filed with the Securities and Exchange Commission, or SEC, utilizing a “shelf” registration process. Under this shelf registration process, we may offer and sell, either individually or in combination, in one or more offerings, any of the securities described in this prospectus, for total gross proceeds of up to $150,000,000. This prospectus provides you with a general description of the securities we may offer. Each time we offer securities under this prospectus, we will provide a prospectus supplement to this prospectus that will contain more specific information about the terms of that offering. We may also authorize one or more free writing prospectuses to be provided to you that may contain material information relating to these offerings. The prospectus supplement and any related free writing prospectus that we may authorize to be provided to you may also add, update or change any of the information contained in this prospectus or in the documents that we have incorporated by reference into this prospectus.

We urge you to read carefully this prospectus, any applicable prospectus supplement and any free writing prospectuses we have authorized for use in connection with a specific offering, together with the information incorporated herein by reference as described under the heading “Incorporation of Documents by Reference,” before investing in any of the securities being offered. You should rely only on the information contained in, or incorporated by reference into, this prospectus and any applicable prospectus supplement, along with the information contained in any free writing prospectuses we have authorized for use in connection with a specific offering. We have not authorized anyone to provide you with different or additional information. This prospectus is an offer to sell only the securities offered hereby, but only under circumstances and in jurisdictions where it is lawful to do so.

The information appearing in this prospectus, any applicable prospectus supplement or any related free writing prospectus is accurate only as of the date on the front of the document and any information we have incorporated by reference is accurate only as of the date of the document incorporated by reference, regardless of the time of delivery of this prospectus, any applicable prospectus supplement or any related free writing prospectus, or any sale of a security. Our business, financial condition, results of operations and prospects may have changed since those dates.

This prospectus contains summaries of certain provisions contained in some of the documents described herein, but reference is made to the actual documents for complete information. All of the summaries are qualified in their entirety by the actual documents. Copies of some of the documents referred to herein have been filed, will be filed or will be incorporated by reference as exhibits to the registration statement of which this prospectus is a part, and you may obtain copies of those documents as described below under the section entitled “Where You Can Find Additional Information.”

This prospectus contains, or incorporates by reference, trademarks, tradenames, service marks and service names of Aclarion, Inc.

Cautionary Note Regarding Forward Looking Statements

This prospectus and any accompanying prospectus or prospectus supplement and the documents incorporated by reference herein and therein may contain forward looking statements that involve significant risks and uncertainties. All statements other than statements of historical fact contained in this prospectus and any accompanying prospectus supplement and the documents incorporated by reference herein, including statements regarding future events, our future financial performance, business strategy, and plans and objectives of management for future operations, are forward-looking statements. We have attempted to identify forward-looking statements by terminology including “anticipates,” “believes,” “can,” “continue,” “could,” “estimates,” “expects,” “intends,” “may,” “plans,” “potential,” “predicts,” “should,” or “will” or the negative of these terms or other comparable terminology. Although we do not make forward looking statements unless we believe we have a reasonable basis for doing so, we cannot guarantee their accuracy. These statements are only predictions and involve known and unknown risks, uncertainties and other factors, including the risks outlined under “Risk Factors” or elsewhere in this prospectus and the documents incorporated by reference herein, which may cause our or our industry’s actual results, levels of activity, performance or achievements expressed or implied by these forward-looking statements. Moreover, we operate in a highly regulated, very competitive, and rapidly changing environment. New risks emerge from time to time and it is not possible for us to predict all risk factors, nor can we address the impact of all factors on our business or the extent to which any factor, or combination of factors, may cause our actual results to differ materially from those contained in any forward-looking statements.

We have based these forward-looking statements largely on our current expectations and assumptions about future events and financial trends that we believe may affect our financial condition, results of operations, business strategy, short term and long term business operations, and financial needs. These forward-looking statements are subject to certain risks and uncertainties that could cause our actual results to differ materially from those reflected in the forward-looking statements. Factors that could cause or contribute to such differences include, but are not limited to, those discussed in this prospectus, and in particular, the risks discussed below and under the heading “Risk Factors” and those discussed in other documents we file with the SEC which are incorporated by reference herein. This prospectus, and any accompanying prospectus or prospectus supplement, should be read in conjunction with the consolidated financial statements for the fiscal years ended December 31, 2024 and 2023 and related notes, which are incorporated by reference herein.

We undertake no obligation to revise or publicly release the results of any revision to these forward-looking statements, except as required by law. In light of the significant risks, uncertainties and assumptions that accompany forward-looking statements, the forward-looking events and circumstances discussed in this prospectus and any accompanying prospectus or prospectus supplement may not occur and actual results could differ materially and adversely from those anticipated or implied in the forward-looking statement.

You should not place undue reliance on any forward-looking statement, each of which applies only as of the date of this prospectus, or any accompanying prospectus or any prospectus supplement. Except as required by law, we undertake no obligation to update or revise publicly any of the forward-looking statements after the date of this prospectus to conform our statements to actual results or changed expectations.

Any forward-looking statement you read in this prospectus, any accompanying prospectus, or any prospectus supplement or any document incorporated by reference reflects our current views with respect to future events and is subject to these and other risks, uncertainties and assumptions relating to our operations, operating results, growth strategy and liquidity. You should not place undue reliance on these forward-looking statements because such statements speak only as to the date when made. We assume no obligation to publicly update or revise these forward-looking statements for any reason, or to update the reasons actual results could differ materially from those anticipated in these forward-looking statements, even if new information becomes available in the future, except as otherwise required by applicable law. You are advised, however, to consult any further disclosures we make on related subjects in our reports on Forms 10-Q, 8-K and 10-K filed with the SEC. You should understand that it is not possible to predict or identify all risk factors. Consequently, you should not consider any such list to be a complete set of all potential risks or uncertainties.

Prospectus Summary

This summary highlights selected information contained elsewhere in this prospectus. This summary does not contain all the information that you should consider before investing in our Company. You should carefully read the entire prospectus, including all documents incorporated by reference herein. In particular, attention should be directed to our “Risk Factors” and the financial statements and related notes thereto contained herein or otherwise incorporated by reference hereto, before making an investment decision.

As used herein, and any amendment or supplement hereto, unless otherwise indicated, “we,” “us,” “our,” the “Company,” or “Aclarion” means Aclarion, Inc.

Overview

We are a healthcare technology company that leverages Magnetic Resonance Spectroscopy (“MRS”), and a proprietary biomarkers to optimize clinical treatments. Our technology addresses the $134.5B U.S. low back and neck pain market, which according to a 2020 JAMA (Journal of the American Medical Association) article is now the most costly healthcare condition in the United States. We are currently utilizing Artificial Intelligence (“AI”) to assist in quality control processes that flag spectroscopy data indicative of a poor MRS study. The use of AI in this application is early in its development cycle and is expected to evolve with further research and development. We are capturing in databases both the raw spectroscopy data and the post-processed spectral data from every Nociscan completed in order to utilize this data as future training data to teach a machine learning algorithm to associate MRS data with clinical outcomes. The use of AI in this application is aspirational and we intend this type of AI research and development to be an ongoing process applied not only to the various treatment paths associated with back pain, such as conservative therapies, regenerative and cell therapies and surgical intervention, but also to potentially expand into other clinical explorations involving the diagnosis of brain, breast and prostate tumors.

We, with limited sales to date, are addressing the chronic low back pain market by initially focusing on improving the outcomes of surgical interventions to treat chronic discogenic low back pain. In this initial application, our technology is intended to assist surgeons in determining the optimal surgical procedure for a patient undergoing surgery for pain isolated to their lumbar spine (the “lumbar spine” is comprised of the five (5) lower vertebrae, L-1 to L-5). Through clinical studies we intend to extend the application of our technology beyond surgical decisioning to help with managing large segments of low back pain patients from the point of initial Magnetic Resonance Imaging (“MRI”) through to episode resolution. We believe this will expand the use of our technology to supporting treatment decisions for chronic low back pain patients undergoing conservative therapies such as physical therapy or biologic and cell therapies aimed at regenerating the lumbar discs. We plan to expand the application of our technology beyond the lumbar spine to address neck pain populations in addition to low back pain populations. To expand the application of our technology for use in neck pain populations, we will need to overcome technical changes associated with securing adequate MRS data from the cervical disc, which is significantly smaller than the lumbar disc, and there can be no assurance we will be able to overcome these challenges.

The core technology we employ is MRS. The patient experience when undergoing an MRS exam is exactly like that of a standard MRI, with the exception of an additional 3-5 minutes for each disc undergoing a spectroscopy exam. Whereas a standard MRI produces a signal that is converted into anatomical images, an MRS produces a signal that is converted into a waveform that identifies the chemical composition of tissues. Just like with standard MRI’s, the data from spectroscopy is useless without technologies that can process the data. We have developed proprietary signal processing software that transforms spectroscopy data into clear biomarkers. These biomarkers, which are exclusively licensed from the Regents of University of California, San Francisco (“UCSF”), are the key data inputs for our proprietary algorithms that, when applied, determine if an intervertebral disc is consistent with pain. Our patent portfolio includes 22 U.S. Patents, 17 Foreign Patents, 6 pending U.S. patent applications, and 7 pending Foreign patent applications, including patents and patent applications exclusively licensed from Regents of the University of California.

We believe one of the biggest issues driving the cost of treating low back and neck pain patients to the top of the list for healthcare spending is that there is no objective, cost effective and noninvasive diagnostics to reliably identify the source of a patient’s pain. We believe the poor surgical outcomes for chronic Discogenic Low Back Pain (“DLBP”) are largely due to difficulties in reliably and accurately diagnosing the specific spinal discs that are causing pain. The current primary diagnostic standard is the MRI, which is useful for showing abnormal structures and tissue dehydration, but, we believe, cannot reliably identify specific discs that are causing pain. To diagnose specific discs that are causing pain, a needle-based Provocation Discogram test (“PD Test”) has been developed. PD Tests have been shown to be highly accurate when performed properly. However, a PD Test is invasive, subjective and unpleasant for the patient as the patient needs to be awake in order to tell the physician if the pain the physician is purposefully causing in the disc is the same as the pain the patient feels when they are experiencing a back pain episode. In addition, recent evidence has shown that the action of inserting a needle into a normal disc during a discogram procedure leads to an increased rate of degeneration in these previously normal discs. Based on the limitations and concerns of the PD Test, we believe there is a significant need for an objective, accurate, personalized and noninvasive diagnostic test that can reliably determine if an individual disc is a pain generator. By providing physicians information about whether a disc has the chemical and structural makeup consistent with pain or not, we believe the treatment plan for each patient will lead to more efficient and targeted care that, will in turn, result in lower costs and healthier patient outcomes.

We have taken the first steps to demonstrate the potential use of our technology in helping to improve the outcome of surgical intervention for DLBP patients by publishing a clinical study in the European Spine Journal in April 2019. The study illustrated that when all discs identified as consistent with pain by our technology were included in a surgical treatment, 97% of the patients met the criteria for “clinical improvement”. This compared to only 54% of patients meeting the criteria for clinical improvement if a disc that our technology identified as consistent with pain, was not included in the surgical treatment.

In April 2023, we advanced the evidence of our technology with a peer-reviewed journal article detailing the Gornet 2-year outcomes published in the European Spine Journal. The 2-year outcomes were durable with 1-year outcomes previously published in 2019. At 2-years follow-up, 85% of patients improved when disc(s) identified as consistent with pain by our technology were included in a surgical treatment, compared to only 63% of patients when disc(s) identified as consistent with pain were not treated or disc(s) identified as consistent without pain were treated.

The results of the 2019 published study led the Current Procedural Terminology committee to approve four Category III codes for our technology in January 2021. The United States National Institutes of Health (“NIH”) also included our technology as one of the handful of technologies selected to participate in their $150 million Back Pain Consortium (BACPAC) Research Program, an NIH translational, patient-centered effort to address the need for effective and personalized therapies for chronic low back pain. In 2022, the NIH subsequently selected our technology to be included in their prospective randomized follow-on study that resulted from BACPAC. This new study is called Biomarkers for the Evaluation of Spinal Treatments (BEST) and is designed to evaluate several technologies that provide data about a patient to see if these technologies can identify subgroups of chronic LBP patients that do better with one of four treatments being evaluated in the study.

Emerging Growth Company under the JOBS Act and Smaller Reporting Company

As a company with less than $1.235 billion in revenue during our last fiscal year, we qualify as an “emerging growth company” under the Jumpstart Our Business Startups Act of 2012, or the JOBS Act. As an emerging growth company, we have elected to take advantage of reduced reporting requirements and are relieved of certain other significant requirements that are otherwise generally applicable to public companies. As an emerging growth company:

We may take advantage of these provisions until December 31, 2026 (the last day of the fiscal year following the fifth anniversary of our initial public offering) if we continue to be an emerging growth company. We would cease to be an emerging growth company if we have more than $1.235 billion in annual revenue, have more than $700 million in market value of our shares held by non-affiliates or issue more than $1.0 billion of non-convertible debt over a three-year period. We may choose to take advantage of some but not all of these reduced burdens. We have elected to provide two years of audited financial statements. Additionally, we have elected to take advantage of the extended transition period provided in Section 7(a)(2)(B) of the Securities Act of 1933, as amended, or the Securities Act, for complying with new or revised accounting standards that have different effective dates for public and private companies until the earlier of the date we (i) are no longer an emerging growth company or (ii) affirmatively and irrevocably opt out of the extended transition period provided in Section 7(a)(2)(B) of the Securities Act.

We are also a “smaller reporting company” meaning that the market value of our stock held by non-affiliates is less than $700 million and our annual revenue was less than $100 million during the most recently completed fiscal year. We may continue to be a smaller reporting company if either (i) the market value of our stock held by non-affiliates is less than $250 million or (ii) our annual revenue was less than $100 million during the most recently completed fiscal year and the market value of our stock held by non-affiliates is less than $700 million. If we are a smaller reporting company at the time we cease to be an emerging growth company, we may continue to rely on exemptions from certain disclosure requirements that are available to smaller reporting companies. Specifically, as a smaller reporting company we may choose to present only the two most recent fiscal years of audited financial statements in our Annual Report on Form 10-K and, similar to emerging growth companies, smaller reporting companies have reduced disclosure obligations regarding executive compensation.

Corporate Information

We were formed under the name Nocimed, LLC, a limited liability company in January 2008, under the laws of the State of Delaware. In February 2015, Nocimed, LLC was converted into Nocimed, Inc. a Delaware corporation. On December 3, 2021, we changed our name to Aclarion, Inc. Our principal executive offices are located at 8181 Arista Place, Suite 100, Broomfield, Colorado 80021. Our main telephone number is (833) 275-2266. Our internet website is www.aclarion.com. The information contained in, or that can be accessed through, our website is not incorporated by reference and is not a part of this prospectus.

Risk Factors

Investing in our securities is highly speculative and involves a high degree of risk. Before deciding whether to invest in our securities, you should carefully consider the risk factors we describe in any accompanying prospectus or any future prospectus supplement, as well as in any related free writing prospectus for a specific offering of securities, and the risk factors incorporated by reference into this prospectus, any accompanying prospectus or such prospectus supplement. You should also carefully consider other information contained and incorporated by reference in this prospectus and any applicable prospectus supplement, including our financial statements and the related notes thereto incorporated by reference in this prospectus. The risks and uncertainties described in the applicable prospectus supplement and our other filings with the SEC incorporated by reference herein are not the only ones we face. Additional risks and uncertainties not presently known to us or that we currently consider immaterial may also adversely affect us. If any of the described risks occur, our business, financial condition or results of operations could be materially harmed. In such case, the value of our securities could decline and you may lose all or part of your investment.

You should also consider the risks, uncertainties and assumptions discussed under the caption “Risk Factors” included in our most recent Annual Report on Form 10-K incorporated by reference in this prospectus, which may be amended, supplemented, or superseded from time to time by subsequent reports we file with the SEC in the future.

Use of Proceeds

Unless otherwise indicated in a prospectus supplement, we intend to use the net proceeds from these sales to fund market development and clinical evidence, product development and quality, and general and administration support, retire outstanding debt, and other general corporate purposes. We may set forth additional information concerning our expected use of net proceeds from sales of securities in the applicable prospectus supplement relating to the specific offering.

Dividend Policy

We have never paid or declared any cash dividends on our common stock, and we do not anticipate paying any cash dividends on our common stock in the foreseeable future. We intend to retain all available funds and any future earnings to fund the development and expansion of our business. Any future determination to pay dividends will be at the discretion of our board of directors and will depend upon a number of factors, including our results of operations, financial condition, future prospects, contractual restrictions, restrictions imposed by applicable law and other factors our board of directors deems relevant. Our future ability to pay cash dividends on our stock may also be limited by the terms of any future debt or preferred securities or future credit facility.

Plan of Distribution

We may sell the securities offered through this prospectus and any accompanying prospectus supplement, if required, in any of the following ways: (i) to or through underwriters or dealers, (ii) directly to purchasers, including our affiliates, (iii) through agents, (iv) in an “at the market offering,” within the meaning of Rule 415(a)(4) of the Securities Act or (v) through a combination of any of these methods or any other method permitted by law. The securities may be distributed at a fixed price or prices, which may be changed, market prices prevailing at the time of sale, prices related to the prevailing market prices, or negotiated prices, either:

In addition, we may issue the securities as a dividend or distribution or in a subscription rights offering to our existing security holders.

We may directly solicit offers to purchase securities, or agents may be designated to solicit such offers. In the prospectus supplement relating to such offering, we will name any agent that could be viewed as an underwriter under the Securities Act and describe any commissions that we must pay to any such agent. Any such agent will be acting on a best efforts basis for the period of its appointment or, if indicated in the applicable prospectus supplement, on a firm commitment basis. This prospectus may be used in connection with any offering of our securities through any of these methods or other methods described in the applicable prospectus supplement.

Each prospectus supplement will describe the method of distribution of the securities and any applicable restrictions.

The prospectus supplement with respect to the securities of a particular series will describe the terms of the offering of the securities, including the following:

If any underwriters or agents are used in the sale of the securities in respect of which this prospectus is delivered, we will enter into an underwriting agreement, sales agreement or other agreement with them at the time of sale to them, and we will set forth in the prospectus supplement relating to such offering the names of the underwriters or agents and the terms of the related agreement with them.

In connection with the offering of securities, we may grant to the underwriters an option to purchase additional securities with an additional underwriting commission, as may be set forth in the accompanying prospectus supplement. If we grant any such option, the terms of such option will be set forth in the prospectus supplement for such securities.

If a dealer is used in the sale of the securities in respect of which the prospectus is delivered, we will sell such securities to the dealer, as principal. The dealer, who may be deemed to be an “underwriter” as that term is defined in the Securities Act, may then resell such securities to the public at varying prices to be determined by such dealer at the time of resale.

If we offer securities in a subscription rights offering to our existing security holders, we may enter into a standby underwriting agreement with dealers, acting as standby underwriters. We may pay the standby underwriters a commitment fee for the securities they commit to purchase on a standby basis. If we do not enter into a standby underwriting arrangement, we may retain a dealer-manager to manage a subscription rights offering for us.

Agents, underwriters, dealers and other persons may be entitled under agreements which they may enter into with us to indemnification by us against certain civil liabilities, including liabilities under the Securities Act, and may be customers of, engage in transactions with or perform services for us in the ordinary course of business.

If so indicated in the applicable prospectus supplement, we will authorize underwriters or other persons acting as our agents to solicit offers by certain institutions to purchase securities from us pursuant to delayed delivery contracts providing for payment and delivery on the date stated in the prospectus supplement. Each contract will be for an amount not less than, and the aggregate amount of securities sold pursuant to such contracts shall not be less nor more than, the respective amounts stated in the prospectus supplement. Institutions with whom the contracts, when authorized, may be made include commercial and savings banks, insurance companies, pension funds, investment companies, educational and charitable institutions and other institutions, but shall in all cases be subject to our approval. Delayed delivery contracts will not be subject to any conditions except that:

Offered securities may also be offered and sold, if so indicated in the prospectus supplement, in connection with a remarketing upon their purchase, in accordance with a redemption or repayment pursuant to their terms, or otherwise, by one or more remarketing firms, acting as principals for their own accounts or as agents for us. Any remarketing firm will be identified and the terms of its agreement, if any, with us and its compensation will be described in the applicable prospectus supplement. Remarketing firms may be deemed to be underwriters in connection with their remarketing of offered securities.

Certain agents, underwriters and dealers, and their associates and affiliates, may be customers of, have borrowing relationships with, engage in other transactions with, or perform services, including investment banking services, for us or one or more of our respective affiliates in the ordinary course of business.

Certain underwriters may use this prospectus and any accompanying prospectus supplement for offers and sales related to market-making transactions in the securities. These underwriters may act as principal or agent in these transactions, and the sales will be made at prices related to prevailing market prices at the time of sale. Any underwriters involved in the sale of the securities may qualify as “underwriters” within the meaning of Section 2(a)(11) of the Securities Act. In addition, the underwriters’ commissions, discounts or concessions may qualify as underwriters’ compensation under the Securities Act and the rules of the Financial Industry Regulatory Authority (“FINRA”).

In order to facilitate the offering of the securities, any underwriters may engage in transactions that stabilize, maintain or otherwise affect the price of the securities or any other securities the prices of which may be used to determine payments on such securities. Specifically, any underwriters may overallot in connection with the offering, creating a short position for their own accounts. In addition, to cover overallotments or to stabilize the price of the securities or of any such other securities, the underwriters may bid for, and purchase, the securities or any such other securities in the open market. Finally, in any offering of the securities through a syndicate of underwriters, the underwriting syndicate may reclaim selling concessions allowed to an underwriter or a dealer for distributing the securities in the offering if the syndicate repurchases previously distributed securities in transactions to cover syndicate short positions, in stabilization transactions or otherwise. Any of these activities may stabilize or maintain the market price of the securities above independent market levels. Any such underwriters are not required to engage in these activities and may end any of these activities at any time.

We may engage in at the market offerings into an existing trading market in accordance with Rule 415(a)(4) under the Securities Act. In addition, we may enter into derivative transactions with third parties, or sell securities not covered by this prospectus to third parties in privately negotiated transactions. If the applicable prospectus supplement so indicates, in connection with those derivatives, the third parties may sell securities covered by this prospectus and the applicable prospectus supplement, including in short sale transactions. If so, the third party may use securities pledged by us or borrowed from us or others to settle those sales or to close out any related open borrowings of stock, and may use securities received from us in settlement of those derivatives to close out any related open borrowings of stock. The third party in such sale transactions will be an underwriter and, if not identified in this prospectus, will be named in the applicable prospectus supplement (or a post-effective amendment). In addition, we may otherwise loan or pledge securities to a financial institution or other third party that in turn may sell the securities short using this prospectus and an applicable prospectus supplement. Such financial institution or other third party may transfer its economic short position to investors in our securities or in connection with a concurrent offering of other securities.

Under Rule 15c6-1 of the Exchange Act, trades in the secondary market generally are required to settle in one business day, unless the parties to any such trade expressly agree otherwise. The applicable prospectus supplement may provide that the original issue date for your securities may be more than one scheduled business day after the trade date for your securities. Accordingly, in such a case, if you wish to trade securities on any date prior to the first business day before the original issue date for your securities, you will be required, by virtue of the fact that your securities initially are expected to settle in more than one scheduled business day after the trade date for your securities, to make alternative settlement arrangements to prevent a failed settlement.

The securities may be new issues of securities and may have no established trading market. The securities may or may not be listed on a national securities exchange. We can make no assurance as to the liquidity of or the existence of trading markets for any of the securities.

The specific terms of any lock-up provisions in respect of any given offering will be described in the applicable prospectus supplement.

Any underwriters, dealers and agents may engage in transactions with us, or perform services for us, in the ordinary course of business for which they receive compensation.

The anticipated date of delivery of offered securities will be set forth in the applicable prospectus supplement relating to each offer.

Description of Securities We May Offer

General

This prospectus describes the general terms of our capital stock. The following description is not complete and may not contain all the information you should consider before investing in our capital stock. For a more detailed description of these securities, you should read the applicable provisions of Delaware law and our certificate of incorporation, as amended, referred to herein as our certificate of incorporation, and our amended and restated bylaws, referred to herein as our bylaws. When we offer to sell a particular series of these securities, we will describe the specific terms of the series in a supplement to this prospectus. Accordingly, for a description of the terms of any series of securities, you must refer to both the prospectus supplement relating to that series and the description of the securities described in this prospectus. To the extent the information contained in the prospectus supplement differs from this summary description, you should rely on the information in the prospectus supplement.

The total number of shares of capital stock we are authorized to issue is 220,000,000 shares, of which (1) 200,000,000 shares are common stock, par value $0.00001 per share (or common stock) and (2) 20,000,000 shares are preferred stock, par value $0.00001 per share (or preferred stock), which may, at the sole discretion of our board of directors be issued in one or more series.

We, directly or through agents, dealers or underwriters designated from time to time, may offer, issue and sell, together or separately, up to $150,000,000 in the aggregate of:

We may issue the debt securities as exchangeable for or convertible into shares of common stock, preferred stock or other securities that may be sold by us pursuant to this prospectus or any combination of the foregoing. The preferred stock may also be exchangeable for and/or convertible into shares of common stock, another series of preferred stock or other securities that may be sold by us pursuant to this prospectus or any combination of the foregoing. When a particular series of securities is offered, a supplement to this prospectus will be delivered with this prospectus, which will set forth the terms of the offering and sale of the offered securities.

Common Stock

The holders of our common stock are entitled to one vote for each share held on all matters submitted to a vote of the stockholders. The holders of our common stock do not have any cumulative voting rights. Holders of our common stock are entitled to receive ratably any dividends declared by our board of directors out of funds legally available for that purpose, subject to any preferential dividend rights of any outstanding preferred stock. Our common stock has no preemptive rights, conversion rights or other subscription rights or redemption or sinking fund provisions.

In the event of our liquidation, dissolution or winding up, holders of our common stock will be entitled to share ratably in all assets remaining after payment of all debts and other liabilities and any liquidation preference of any outstanding preferred stock. Each outstanding share of common stock is duly and validly issued, fully paid and non-assessable.

Market, Symbol and Transfer Agent

Our common stock is listed for trading on the Nasdaq Capital Market under the symbol “ACON”. The transfer agent and registrar for our common stock is VStock Transfer, LLC.

Preferred stock

Our board of directors will have the authority, without further action by our stockholders, to issue up to 20,000,000 shares of preferred stock in one or more series and to fix the rights, preferences, privileges and restrictions thereof. These rights, preferences and privileges could include dividend rights, conversion rights, voting rights, terms of redemption, liquidation preferences, sinking fund terms and the number of shares constituting, or the designation of, such series, any or all of which may be greater than the rights of common stock. The issuance of our preferred stock could adversely affect the voting power of holders of common stock and the likelihood that such holders will receive dividend payments and payments upon our liquidation. In addition, the issuance of preferred stock could have the effect of delaying, deferring or preventing a change in control of our company or other corporate action.

Anti-Takeover Effects of Delaware Law and Provisions of our Charter and our Bylaws

Certain provisions of the DGCL and of our charter and our bylaws could have the effect of delaying, deferring or preventing another party from acquiring control of us and encouraging persons considering unsolicited tender offers or other unilateral takeover proposals to negotiate with our board of directors rather than pursue non-negotiated takeover attempts. These provisions include the items described below.

Delaware Anti-Takeover Statute

We are subject to the provisions of Section 203 of the DGCL. In general, Section 203 prohibits a publicly held Delaware corporation from engaging in a “business combination” with an “interested stockholder” for a three-year period following the time that this stockholder becomes an interested stockholder, unless the business combination is approved in a prescribed manner. Under Section 203, a business combination between a corporation and an interested stockholder is prohibited unless it satisfies one of the following conditions:

Section 203 defines a business combination to include:

In general, Section 203 defines an interested stockholder as any entity or person beneficially owning 15% or more of the outstanding voting stock of the corporation and any entity or person affiliated with or controlling or controlled by the entity or person.

Board Composition and Filling Vacancies

Our charter provides that stockholders may remove directors only for cause and only by the affirmative vote of the holders of at least two-thirds of our outstanding common stock. Our charter and bylaws authorize only our board of directors to fill vacant directorships, including newly created seats. In addition, the number of directors constituting our board of directors may only be set by a resolution adopted by a majority vote of our entire board of directors. These provisions would prevent a stockholder from increasing the size of our board of directors and then gaining control of our board of directors by filling the resulting vacancies with its own nominees. This makes it more difficult to change the composition of our board of directors but promotes continuity of management.

No Written Consent of Stockholders

Our charter and bylaws provides that all stockholder actions are required to be taken by a vote of the stockholders at an annual or special meeting, and that stockholders may not take any action by written consent in lieu of a meeting. This limit may lengthen the amount of time required to take stockholder actions and would prevent the amendment of our bylaws or removal of directors by our stockholders without holding a meeting of stockholders.

Meetings of Stockholders

Our charter and bylaws provide that only a majority of the members of our board of directors then in office, our Executive Chairman or our Chief Executive Officer may call special meetings of stockholders and only those matters set forth in the notice of the special meeting may be considered or acted upon at a special meeting of stockholders.

Advance Notice Requirements

Our bylaws provide advance notice procedures for stockholders seeking to bring matters before our annual meeting of stockholders or to nominate candidates for election as directors at our annual meeting of stockholders. Our bylaws also specify certain requirements regarding the form and content of a stockholder’s notice. These provisions might preclude our stockholders from bringing matters before our annual meeting of stockholders or from making nominations for directors at our annual meeting of stockholders if the proper procedures are not followed. We expect that these provisions might also discourage or deter a potential acquirer from conducting a solicitation of proxies to elect the acquirer’s own slate of directors or otherwise attempting to obtain control of our company.

Amendment to our Charter and Bylaws

The DGCL, provides, generally, that the affirmative vote of a majority of the shares entitled to vote on any matter is required to amend a corporation’s certificate of incorporation or bylaws, unless a corporation’s certificate of incorporation or bylaws, as the case may be, requires a greater percentage. Our bylaws may be amended or repealed by a majority vote of our board of directors or the affirmative vote of the holders of at least two-thirds of the votes that all our stockholders would be entitled to cast in an annual election of directors. In addition, the affirmative vote of the holders of at least two-thirds of the votes that all our stockholders would be entitled to cast in an election of directors is required to amend or repeal or to adopt certain provisions of our charter.

Undesignated preferred stock

Our charter provides for 20,000,000 authorized shares of preferred stock. The existence of authorized but unissued shares of preferred stock may enable our board of directors to discourage an attempt to obtain control of us by means of a merger, tender offer, proxy contest or otherwise. For example, if in the due exercise of its fiduciary obligations, our board of directors were to determine that a takeover proposal is not in the best interests of our stockholders, our board of directors could cause shares of convertible preferred stock to be issued without stockholder approval in one or more private offerings or other transactions that might dilute the voting or other rights of the proposed acquirer or insurgent stockholder or stockholder group. In this regard, our charter grants our board of directors broad power to establish the rights and preferences of authorized and unissued shares of preferred stock. The issuance of shares of preferred stock could decrease the amount of earnings and assets available for distribution to holders of shares of common stock. The issuance may also adversely affect the rights and powers, including voting rights, of these holders and may have the effect of delaying, deterring or preventing a change in control of us.

Choice of Forum

Our charter provides that the Court of Chancery of the State of Delaware is the exclusive forum for the following types of actions or proceedings: any derivative action or proceeding brought on behalf of us, any action asserting a claim of breach of a fiduciary duty owed by any of our directors, officers or other employees to us or our stockholders, any action asserting a claim against us arising pursuant to any provision of the DGCL or our certificate of incorporation or bylaws, or any action asserting a claim against us governed by the internal affairs doctrine. Our charter also provides that unless we consent in writing to the selection of an alternative forum, the federal district courts of the United States of America shall be the exclusive forum for the resolution of any complaint asserting a cause of action arising under the Securities Act. Despite the fact that the certificate of incorporation provides for this exclusive forum provision to be applicable to the fullest extent permitted by applicable law, Section 27 of the Exchange Act, creates exclusive federal jurisdiction over all suits brought to enforce any duty or liability created by the Exchange Act or the rules and regulations thereunder and Section 22 of the Securities Act, creates concurrent jurisdiction for federal and state courts over all suits brought to enforce any duty or liability created by the Securities Act or the rules and regulations thereunder. As a result, this provision of our certificate of incorporation would not apply to claims brought to enforce a duty or liability created by the Exchange Act, or any other claim for which the federal courts have exclusive jurisdiction. However, there is uncertainty as to whether a Delaware court would enforce the exclusive federal forum provisions for Securities Act claims and that investors cannot waive compliance with the federal securities laws and rules and regulations thereunder.

Unless we consent in writing to the selection of an alternative forum, the federal district courts of the United States of America shall be the exclusive forum for the resolution of any complaint asserting a cause of action arising under the Securities Act.

Warrants

We may issue warrants to purchase our securities or other rights, including rights to receive payment in cash or securities based on the value, rate or price of one or more specified commodities, currencies, securities or indices, or any combination of the foregoing. Warrants may be issued independently or together with any other securities that may be sold by us pursuant to this prospectus or any combination of the foregoing and may be attached to, or separate from, such securities. To the extent warrants that we issue are to be publicly-traded, each series of such warrants will be issued under a separate warrant agreement to be entered into between us and a warrant agent.

We will file as exhibits to the registration statement of which this prospectus is a part, or will incorporate by reference from a current report on Form 8-K that we file with the SEC, forms of the warrant and warrant agreement, if any. The prospectus supplement relating to any warrants that we may offer will contain the specific terms of the warrants and a description of the material provisions of the applicable warrant agreement, if any. These terms may include the following:

Exercise of Warrants. Each warrant will entitle the holder of warrants to purchase the amount of securities or other rights, at the exercise price stated or determinable in the prospectus supplement for the warrants. Warrants may be exercised at any time up to the close of business on the expiration date shown in the applicable prospectus supplement, unless otherwise specified in such prospectus supplement. After the close of business on the expiration date, if applicable, unexercised warrants will become void. Warrants may be exercised in the manner described in the applicable prospectus supplement. When the warrant holder makes the payment and properly completes and signs the warrant certificate at the corporate trust office of the warrant agent, if any, or any other office indicated in the prospectus supplement, we will, as soon as possible, forward the securities or other rights that the warrant holder has purchased. If the warrant holder exercises less than all of the warrants represented by the warrant certificate, we will issue a new warrant certificate for the remaining warrants.

Subscription Rights

We may issue rights to purchase our securities. The rights may or may not be transferable by the persons purchasing or receiving the rights. In connection with any rights offering, we may enter into a standby underwriting or other arrangement with one or more underwriters or other persons pursuant to which such underwriters or other persons would purchase any offered securities remaining unsubscribed for after such rights offering. In connection with a rights offering to holders of our capital stock a prospectus supplement will be distributed to such holders on the record date for receiving rights in the rights offering set by us.

We will file as exhibits to the registration statement of which this prospectus is a part, or will incorporate by reference from a current report on Form 8-K that we file with the SEC, forms of the subscription rights, standby underwriting agreement or other agreements, if any. The prospectus supplement relating to any rights that we offer will include specific terms relating to the offering, including, among other matters:

Each right would entitle the holder of the rights to purchase the principal amount of securities at the exercise price set forth in the applicable prospectus supplement. Rights may be exercised at any time up to the close of business on the expiration date for the rights provided in the applicable prospectus supplement. After the close of business on the expiration date, all unexercised rights will become void.

Holders may exercise rights as described in the applicable prospectus supplement. Upon receipt of payment and the rights certificate properly completed and duly executed at the corporate trust office of the rights agent, if any, or any other office indicated in the prospectus supplement, we will, as soon as practicable, forward the securities purchasable upon exercise of the rights. If less than all of the rights issued in any rights offering are exercised, we may offer any unsubscribed securities directly to persons other than stockholders, to or through agents, underwriters or dealers or through a combination of such methods, including pursuant to standby underwriting arrangements, as described in the applicable prospectus supplement.

Debt Securities

As used in this prospectus, the term “debt securities” means the debentures, notes, bonds and other evidences of indebtedness that we may issue from time to time. The debt securities will either be senior debt securities, senior subordinated debt or subordinated debt securities. We may also issue convertible debt securities. Debt securities may be issued under an indenture (which we refer to herein as an Indenture), which are contracts entered into between us and a trustee to be named therein. The Indenture has been filed as an exhibit to the registration statement of which this prospectus forms a part. We may issue debt securities and incur additional indebtedness other than through the offering of debt securities pursuant to this prospectus. It is likely that convertible debt securities will not be issued under an Indenture.

The debt securities may be fully and unconditionally guaranteed on a secured or unsecured senior or subordinated basis by one or more guarantors, if any. The obligations of any guarantor under its guarantee will be limited as necessary to prevent that guarantee from constituting a fraudulent conveyance under applicable law. In the event that any series of debt securities will be subordinated to other indebtedness that we have outstanding or may incur, the terms of the subordination will be set forth in the prospectus supplement relating to the subordinated debt securities.

We may issue debt securities from time to time in one or more series, in each case with the same or various maturities, at par or at a discount. Unless indicated in a prospectus supplement, we may issue additional debt securities of a particular series without the consent of the holders of the debt securities of such series outstanding at the time of the issuance. Any such additional debt securities, together with all other outstanding debt securities of that series, will constitute a single series of debt securities under the applicable Indenture and will be equal in ranking.

Should an Indenture relate to unsecured indebtedness, in the event of a bankruptcy or other liquidation event involving a distribution of assets to satisfy our outstanding indebtedness or an event of default under a loan agreement relating to secured indebtedness of our company or its subsidiaries, the holders of such secured indebtedness, if any, would be entitled to receive payment of principal and interest prior to payments on the unsecured indebtedness issued under an Indenture.

Each prospectus supplement will describe the terms relating to the specific series of debt securities. These terms will include some or all of the following:

Unless otherwise specified in the applicable prospectus supplement, we do not anticipate the debt securities will be listed on any securities exchange. Holders of the debt securities may present registered debt securities for exchange or transfer in the manner described in the applicable prospectus supplement. Except as limited by the applicable Indenture, we will provide these services without charge, other than any tax or other governmental charge payable in connection with the exchange or transfer.

Debt securities may bear interest at a fixed rate or a variable rate as specified in the prospectus supplement. In addition, if specified in the prospectus supplement, we may sell debt securities bearing no interest or interest at a rate that at the time of issuance is below the prevailing market rate, or at a discount below their stated principal amount. We will describe in the applicable prospectus supplement any special federal income tax considerations applicable to these discounted debt securities.

We may issue debt securities with the principal amount payable on any principal payment date, or the amount of interest payable on any interest payment date, to be determined by referring to one or more currency exchange rates, commodity prices, equity indices or other factors. Holders of such debt securities may receive a principal amount on any principal payment date, or interest payments on any interest payment date, that are greater or less than the amount of principal or interest otherwise payable on such dates, depending upon the value on such dates of applicable currency, commodity, equity index or other factors. The applicable prospectus supplement will contain information as to how we will determine the amount of principal or interest payable on any date, as well as the currencies, commodities, equity indices or other factors to which the amount payable on that date relates and certain additional tax considerations.

Units

We may issue units consisting of any combination of the other types of securities offered under this prospectus in one or more series. We may evidence each series of units by unit certificates that we may issue under a separate agreement. We may enter into unit agreements with a unit agent. Each unit agent, if any, may be a bank or trust company that we select. We will indicate the name and address of the unit agent, if any, in the applicable prospectus supplement relating to a particular series of units. Specific unit agreements, if any, will contain additional important terms and provisions. We will file as an exhibit to the registration statement of which this prospectus is a part, or will incorporate by reference from a current report that we file with the SEC, the form of unit and the form of each unit agreement, if any, relating to units offered under this prospectus.

If we offer any units, certain terms of that series of units will be described in the applicable prospectus supplement, including, without limitation, the following, as applicable:

Legal Matters

Unless otherwise indicated in the applicable prospectus supplement, the validity of the securities offered by this prospectus will be passed upon for us by Carroll Legal LLC, Denver, Colorado. If legal matters in connection with offerings made by this prospectus are passed on by counsel for the underwriters, dealers or agents, if any, that counsel will be named in the applicable prospectus supplement.

Experts

Haynie & Company, independent registered public accounting firm, has audited the financial statements of the Company as of December 31, 2024 and 2023 and for the year ended December 31, 2024 and 2023, as set forth in their report thereon appearing in Aclarion, Inc.’s Annual Report on Form 10-K for the year ended December 31, 2024, and incorporated by reference herein. Such financial statements are incorporated by reference herein in reliance upon such report given on their authority as experts in accounting and auditing.

Where You Can Find Additional Information

This prospectus is part of the registration statement on Form S-3 filed with the SEC under the Securities Act of 1933, as amended, or the Securities Act, and does not contain all the information set forth in the registration statement. Whenever a reference is made in this prospectus to any of our contracts, agreements or other documents, the reference may not be complete and you should refer to the exhibits that are a part of the registration statement or the exhibits to the reports or other documents incorporated herein by reference for a copy of such contract, agreement or other document.

We are currently subject to the reporting requirements of the Securities Exchange Act of 1934, as amended, or the Exchange Act, and in accordance therewith file periodic reports, proxy statements and other information with the SEC. Our SEC filings are available to you on the SEC’s website at http://www.sec.gov and in the “Investors” section of our website at www.aclarion.com. Our website and the information contained on that site, or connected to that site, are not incorporated into and are not a part of this prospectus.

Incorporation of Documents By Reference

We are “incorporating by reference” in this prospectus certain documents we file with the SEC, which means that we can disclose important information to you by referring you to those documents. The information in the documents incorporated by reference is considered to be part of this prospectus. Statements contained in documents that we file with the SEC and that are incorporated by reference in this prospectus will automatically update and supersede information contained in this prospectus, including information in previously filed documents or reports that have been incorporated by reference in this prospectus, to the extent the new information differs from or is inconsistent with the old information. We have filed or may file the following documents with the SEC and they are incorporated herein by reference as of their respective dates of filing:

1. Our Annual Report on Form 10-K for the year ended December 31, 2024, as filed with the SEC on April 9, 2025;

2. Our Current Reports on Form 8-K filed with the SEC on January 3, 2025, January 3, 2025, January 6, 2025, January 17, 2025, January 30, 2025, January 31, 2025, February 28, 2025, March 6, 2025, March 13, 2025 and March 28, 2025; and

3. The description of our Common Stock, which is contained in the Registration Statement on Form 8-A, as filed with the SEC on April 20, 2022, as updated by the description of our Common Stock contained in Exhibit 4.12 to our Annual Report on Form 10-K for the fiscal year ended December 31, 2024, filed with the SEC on April 9, 2025.

All documents that we file with the SEC pursuant to Sections 13(a), 13(c), 14, and 15(d) of the Exchange Act (i) after the date of the initial registration statement and prior to effectiveness of the registration statement and (ii) on or after the date of the effectiveness of the registration statement and prior to the filing of a post-effective amendment to this registration statement that indicates that all securities offered under this prospectus have been sold, or that deregisters all securities then remaining unsold, will be deemed to be incorporated in this registration statement by reference and to be a part hereof from the date of filing of such documents.

Any statement contained in a document incorporated or deemed to be incorporated by reference in this prospectus shall be deemed modified, superseded or replaced for purposes of this prospectus to the extent that a statement contained in this prospectus, or in any subsequently filed document that also is deemed to be incorporated by reference in this prospectus, modifies, supersedes or replaces such statement. Any statement so modified, superseded or replaced shall not be deemed, except as so modified, superseded or replaced, to constitute a part of this prospectus. None of the information that we disclose under Items 2.02 or 7.01 of any Current Report on Form 8-K or any corresponding information, either furnished under Item 9.01 or included as an exhibit therein, that we may from time to time furnish to the SEC will be incorporated by reference into, or otherwise included in, this prospectus, except as otherwise expressly set forth in the relevant document. Subject to the foregoing, all information appearing in this prospectus is qualified in its entirety by the information appearing in the documents incorporated by reference.

You may request, orally or in writing, a copy of these documents, which will be provided to you at no cost (other than exhibits, unless such exhibits are specifically incorporated by reference), by contacting John Lorbiecki, c/o Aclarion, Inc., at 8181 Arista Place, Suite 100, Broomfield, Colorado 80021. Our telephone number is (833) 275-2266. Information about us is also available at our website at www.aclarion.com. However, the information in our website is not a part of this prospectus and is not incorporated by reference.

64,000 Shares of Common Stock

236,000 Pre-Funded Warrants to Purchase Shares of Common Stock

 236,000 Shares of Common Stock Issuable Upon Exercise of the Pre-Funded Warrants

PROSPECTUS SUPPLEMENT

Dawson James Securities, Inc.

October 13, 2025