Jeffrey G. Winzeler - 02 Jun 2026 Form 4 Insider Report for Ambiq Micro, Inc. (AMBQ)

Reporting relationship: Chief Financial Officer
Issuer ticker: AMBQ
Reported as of: 02 Jun 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 04 Jun 2026, 17:01:07 UTC
Prior SEC filing: 18 May 2026
Source filing: View source filing
Reporting owner signature: /s/ Jeffrey Winzeler

Key filing fact

Jeffrey G. Winzeler filed Form 4 for Ambiq Micro, Inc. (AMBQ) on 04 Jun 2026.

Key facts

This page summarizes Jeffrey G. Winzeler's Form 4 filing for Ambiq Micro, Inc. (AMBQ).
2 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 04 Jun 2026, 17:01.

Change

Previous filing in this sequence was filed on 18 May 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001312143 Primary reporting owner

Winzeler Jeffrey G

Relationship: Chief Financial Officer
Address: C/O AMBIQ MICRO, INC., 6500 RIVER PLACE BLVD BUILDING 7 STE 200, AUSTIN
Signature: /s/ Jeffrey Winzeler
Signature date: 04 Jun 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

AMBQ transaction

Common Stock

Options Exercise

Transaction value
Shares: +5,952
Change %: +5.9%
Price: $16.80^*
Shares after: 106,299
Date: 02 Jun 2026
Ownership: Direct

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

AMBQ transaction Derivative

Stock Option (Right to Buy)

Options Exercise

Transaction value
Shares: -5,952
Change %: -5.4%
Price: $0.000000^*
Shares after: 104,953
Date: 02 Jun 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 5,952
Exercise price: $16.80
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

47,619 shares subject to the option vested on October 1, 2025, 1/4 of the remaining 95,238 shares subject to the option vested on June 2, 2026, and 1/36 of the remaining shares subject to the option vest in equal monthly installments thereafter, subject to the Reporting Person's continued service.