AUSTIN, Texas, June 25, 2026 - Ambiq Micro, Inc. ("Ambiq") (NYSE: AMBQ), a technology leader in ultra-low-power semiconductor solutions for edge AI, today announced the closing of its upsized underwritten public offering of 2,300,000 shares of its common stock, including the full exercise of the underwriters' option to purchase 300,000 additional shares, 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, were $179.4 million.

BofA Securities and UBS Investment Bank acted as joint lead book-running managers for the offering. Needham & Company, Stifel, and Roth Capital Partners acted as joint book-running managers for the 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 was made only by means of a prospectus. 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 [email protected] or UBS Securities LLC, Attention: Prospectus Department, 11 Madison Avenue, New York, New York 10010, or by email at [email protected].

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.

Company Contact:

Charlene Wan 
VP of Corporate Marketing
[email protected] 

Investor Relations Contacts:

Teneo
Christina Coronios
[email protected]