SEC FORM 3/A

SEC FORM 3/ASEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

Chen Timothy

(Last)

(First)

(Middle)

C/O AMBIQ MICRO, INC.

6500 RIVER PLACE BLVD., BUILDING 7 SUITE

(Street)

AUSTIN

TEXAS

78730

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
07/29/2025

3. Issuer Name and Ticker or Trading Symbol
Ambiq Micro, Inc. [ AMBQ ]

3a. Foreign Trading Symbol

5. If Amendment, Date of Original Filed (Month/Day/Year)
07/29/2025

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	10% Owner
	Officer (give title below)	Other (specify below)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
Series F-1 Convertible Preferred Stock	⁽¹⁾	⁽¹⁾	Common Stock	70,592	⁽¹⁾	I	By: Triumph Way Investment Inc.⁽²⁾

Explanation of Responses:

1. The Series F-1 Convertible Preferred Stock is convertible into Common Stock at any time at the Reporting Person's election and will convert automatically immediately prior to the closing of the Issuer's initial public offering and has no expiration date. The Reporting Person beneficially owns 1,707,853 shares of Series F-1 Convertible Preferred Stock that will automatically convert into 70,592 shares of Common Stock immediately prior to the closing of the Issuer's initial public offering.

2. The Reporting Person exercises sole voting and dispositive control over the shares held by Triumph Way Investment Inc.

Remarks:

This Form 3 is being amended solely to report the indirectly held stock reported herein that was previously inadvertently omitted from the Form 3.

	/s/ Jeffrey Winzeler, Attorney-in-Fact	05/29/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 3: SEC 1473 (03-26)