Joseph A. Tautges - Jul 29, 2025 Form 4 Insider Report for Ambiq Micro, Inc. (AMBQ)

Role: Director
Signature: /s/ Jeffrey Winzeler, Attorney-in-Fact
Stock symbol: AMBQ
Transactions as of: Jul 29, 2025
Transactions value $: $0
Form type: 4
Date filed: 7/31/2025, 06:14 PM
Previous filing: Jul 6, 2022
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
TAUTGES JOSEPH A	Director	C/O AMBIQ MICRO, INC., AUSTIN	/s/ Jeffrey Winzeler, Attorney-in-Fact	2025-07-31	0001482249

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	AMBQ	Common Stock	Award	$0	+56.5K		$0.00	56.5K	Jul 29, 2025	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Consists of previously granted restricted stock units ("RSUs") for which the liquidity event-based vesting condition was satisfied upon the effectiveness of the registration statement on Form S-1 filed by the Issuer in connection with the Issuer's initial public offering. The RSUs remain subject to service-based vesting conditions. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock upon settlement.

Content

Consists of previously granted restricted stock units ("RSUs") for which the liquidity event-based vesting condition was satisfied upon the effectiveness of the registration statement on Form S-1 filed by the Issuer in connection with the Issuer's initial public offering. The RSUs remain subject to service-based vesting conditions. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock upon settlement.