Revelation Biosciences, Inc. Announces Closing of $4 Million Public Offering

Revelation Biosciences, Inc. (NASDAQ:REVB) (the "Company" or "Revelation"), a clinical-stage life sciences company that is focused on rebalancing inflammation to optimize health, today announced the closing of its previously announced public offering of 3,640,000 shares of its common stock (or common stock equivalents), together with warrants to purchase up to 14,560,000 shares of its common stock at an offering price to the public of $1.10 per share and associated warrant. The warrants will have an exercise price of $1.10 per share, are exercisable beginning on the effective date of stockholder approval of the issuance of the shares upon exercise of the warrants, and will expire five years following the initial exercise date.

Roth Capital Partners acted as sole placement agent for the offering.

The gross proceeds to the Company from the offering were approximately $4 million, before deducting the placement agent's fees and other offering expenses payable by Revelation. The Company intends to use the net proceeds from this offering to further the development of our product candidates, including (i) the completion of our ongoing Phase 1b clinical study, (ii) the manufacture of clinical drug supply, (iii) additional preclinical work for multiple indications, (iv) continue to develop other products and therapies, and (v) fund working capital and general corporate purposes using any remaining amounts.

The securities described above were offered pursuant to a registration statement on Form S-1 (File No. 333-287423), as amended, that was declared effective by the U.S. Securities and Exchange Commission ("SEC"), on May 28, 2025. The offering was made solely by means of a prospectus. Copies of the accompanying prospectus relating to and describing the terms of the offering may be obtained at the SEC's website at www.sec.gov or by contacting Roth Capital Partners, LLC, 888 San Clemente Drive, Suite 400, Newport Beach, CA 92660 or by email at [email protected].

This press release does not constitute an offer to sell or the solicitation of an offer to buy any of the securities described herein, nor shall there be any sale of these securities in any state or other jurisdiction in which such an offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or other jurisdiction.

About Revelation Biosciences, Inc.

Revelation Biosciences, Inc. is a clinical stage life sciences company focused on harnessing the power of trained immunity for the prevention and treatment of disease using its proprietary formulation Gemini. Revelation has multiple ongoing programs to evaluate Gemini, including as a prevention for post-surgical infection, as a prevention for acute kidney injury, and for the treatment of chronic kidney disease.

For more information on Revelation, please visit www.RevBiosciences.com.

Forward-Looking Statements

This press release contains forward-looking statements as defined in the Private Securities Litigation Reform Act of 1995, as amended. Forward-looking statements are statements that are not historical facts. These forward-looking statements are generally identified by the words "anticipate", "believe", "expect", "estimate", "plan", "outlook", and "project" and other similar expressions. We caution investors that forward-looking statements are based on management's expectations and are only predictions or statements of current expectations and involve known and unknown risks, uncertainties and other factors that may cause actual results to be materially different from those anticipated by the forward-looking statements. Revelation cautions readers not to place undue reliance on any such forward looking statements, which speak only as of the date they were made. The following factors, among others, could cause actual results to differ materially from those described in these forward-looking statements: the ability of Revelation to meet its financial and strategic goals, due to, among other things, competition; the ability of Revelation to grow and manage growth profitability and retain its key employees; the possibility that the Revelation may be adversely affected by other economic, business, and/or competitive factors; risks relating to the successful development of Revelation's product candidates; the ability to successfully complete planned clinical studies of its product candidates; the risk that we may not fully enroll our clinical studies or enrollment will take longer than expected; risks relating to the occurrence of adverse safety events and/or unexpected concerns that may arise from data or analysis from our clinical studies; changes in applicable laws or regulations; expected initiation of the clinical studies, the timing of clinical data; the outcome of the clinical data, including whether the results of such study is positive or whether it can be replicated; the outcome of data collected, including whether the results of such data and/or correlation can be replicated; the timing, costs, conduct and outcome of our other clinical studies; the anticipated treatment of future clinical data by the FDA, the EMA or other regulatory authorities, including whether such data will be sufficient for approval; the success of future development activities for its product candidates; potential indications for which product candidates may be developed; the ability of Revelation to maintain the listing of its securities on NASDAQ; the expected duration over which Revelation's balances will fund its operations; and other risks and uncertainties described herein, as well as those risks and uncertainties discussed from time to time in other reports and other public filings with the SEC by Revelation.

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Company Contacts

Mike Porter

Investor Relations

Porter LeVay & Rose Inc.

Email: [email protected]

Chester Zygmont, III

Chief Financial Officer

Revelation Biosciences Inc.

Email: [email protected]