Ambiq Micro, Inc. ("Ambiq") (NYSE:AMBQ), a technology leader in ultra-low-power semiconductor solutions for edge AI, today announced the pricing of its upsized underwritten public offering of 2,000,000 shares of its common stock at a public offering price of $78.00 per share. The gross proceeds to Ambiq from the offering, before deducting underwriting discounts and commissions and other offering expenses, are expected to be $156.0 million. In addition, Ambiq has granted the underwriters a 30-day option to purchase up to an additional 300,000 shares of common stock at the public offering price, less underwriting discounts and commissions. The offering is expected to close on June 25, 2026, subject to the satisfaction of customary closing conditions.

BofA Securities and UBS Investment Bank are acting as joint lead book-running managers for the proposed offering. Needham & Company, Stifel, and Roth Capital Partners are acting as joint book-running managers for the proposed offering.

A registration statement relating to the offering of securities was declared effective by the U.S. Securities and Exchange Commission on June 23, 2026. The offering is being made only by means of a prospectus. When available, copies of the final prospectus relating to the offering may be obtained by contacting: BofA Securities, NC1-022-02-25, 201 North Tryon Street, Charlotte, North Carolina 28255-0001, Attention: Prospectus Department, or by email at dg.prospectus_requests@bofa.com or UBS Securities LLC, Attention: Prospectus Department, 11 Madison Avenue, New York, New York 10010, or by email at ol-prospectus-request@ubs.com.

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

About Ambiq

Headquartered in Austin, Texas, Ambiq’s mission is to enable intelligence (artificial intelligence (AI) and beyond) everywhere by delivering the lowest power semiconductor solutions. Ambiq enables its customers to deliver AI compute at the edge where power consumption challenges are the most severe. Ambiq’s technology innovations, built on the patented and proprietary subthreshold power optimized technology (SPOT®), fundamentally deliver a multi-fold improvement in power consumption over traditional semiconductor designs. Ambiq has powered over 300 million devices to date.

Forward-Looking Statements

The statements contained in this press release that are not historical facts are forward-looking statements. You can identify forward-looking statements because they contain words such as "believes," "expects," "may," "will," "should," "seeks," "intends," "plans," "estimates," or "anticipates," or similar expressions which concern our strategy, plans, projections or intentions. These forward-looking statements may be included throughout this press release, and include, but are not limited to, statements relating to Ambiq’s expected gross proceeds from the offering and the expected timing and closing of the offering. By their nature, forward-looking statements are not statements of historical fact or guarantees of future performance and are subject to risks, uncertainties, assumptions or changes in circumstances that are difficult to predict or quantify including those described in the section titled "Risk Factors" in Ambiq’s Annual Report on Form 10-K for the year ended December 31, 2025, as well as in other filings Ambiq may make with the SEC from time to time. Ambiq’s expectations, beliefs and projections are expressed in good faith and Ambiq believes there is a reasonable basis for them. However, there can be no assurance that management’s expectations, beliefs and projections will result or be achieved and actual results may vary materially from what is expressed in or indicated by the forward-looking statements. Any forward-looking statement in this press release speaks only as of the date of this release. Ambiq undertakes no obligation to publicly update or review any forward-looking statement, whether as a result of new information, future developments or otherwise, except as may be required by any applicable securities laws.

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Company Contact:

Charlene Wan

VP of Corporate Marketing

cwan@ambiq.com

Investor Relations Contacts:

Teneo

Christina Coronios

christina.coronios@teneo.com

Ambiq Announces Pricing of Upsized Public Offering