Ambiq Micro, Inc.

Use of Proceeds

On July 31, 2025, we completed the IPO in which we issued and sold 4,600,000 shares of common stock, at a public offering price of $24.00 per share. We received net proceeds of $102.7 million after deducting underwriting discounts and commissions of $7.7 million, but before offering expenses. In connection with the closing of the IPO, all shares of our then-outstanding convertible preferred stock automatically converted into an aggregate of 12,729,240 shares of common stock. All shares sold in the IPO were registered pursuant to a registration statement on Form S-1 (File No. 333-288497), as amended (Registration Statement), declared effective by the SEC on July 29, 2025. BofA Securities, Inc. and UBS Securities LLC acted as representatives of the underwriters for the IPO. The offering terminated after the sale of all securities registered pursuant to the Registration Statement. No payments for such expenses were made directly or indirectly to (i) any of our officers or directors or their associates, (ii) any persons owning 10% or more of any class of our equity securities, or (iii) any of our affiliates.

There has been no material change in the expected use of the net proceeds from the IPO as described in the Final Prospectus dated as of July 29, 2025 and filed with the SEC pursuant to Rule 424(b)(4) on July 31, 2025.