Ambiq Announces Closing of its Upsized Public Offering and Full Exercise of Underwriters’ Option to Purchase Additional Shares

Ambiq Announces Closing of its Upsized Public Offering and Full Exercise of Underwriters’ Option to Purchase Additional Shares

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 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.