Jeffrey G. Winzeler

CIK: 0001312143

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)5 (50.0%)

Position reduction

Option Exercises (M)3 (30.0%)

Derivative conversions

Awards (A)2 (20.0%)

Compensation grants

Other (G, F, J, C, D, …)0 (0.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

AMBQ

Ambiq Micro, Inc.

Officer

Discretionary Trading P&L

Holdings

Transaction History (10 total)

AMBQ
Ambiq Micro, Inc.
Oct 2, 2026
Sale(S)
Direct
2.3K shares at avg. $69.11$162K
AMBQ
Ambiq Micro, Inc.
Oct 2, 2026
Sale(S)
Direct
2.8K shares at avg. $69.77$197K
AMBQ
Ambiq Micro, Inc.
Oct 2, 2026
Sale(S)
Direct
284 shares at avg. $71.86$20K
AMBQ
Ambiq Micro, Inc.
Jun 2, 2026
Exercise(M)
Direct
6K shares at avg. $16.80$100K
AMBQ
Ambiq Micro, Inc.
May 15, 2026
Exercise(M)
Direct
6K shares at avg. $16.80$100K
AMBQ
Ambiq Micro, Inc.
May 14, 2026
Sale(S)
Direct
25.9K shares at avg. $69.90$1.8M
AMBQ
Ambiq Micro, Inc.
May 14, 2026
Sale(S)
Direct
82 shares at avg. $70.65$6K
AMBQ
Ambiq Micro, Inc.
May 14, 2026
Exercise(M)
Direct
26K shares at avg. $16.80$437K
AMBQ
Ambiq Micro, Inc.
Mar 6, 2026
Award(A)
Direct
41.7K shares-
AMBQ
Ambiq Micro, Inc.
Oct 2, 2025
Award(A)
Direct
52.7K shares-

		Type	Shares	Price		Ownership
Oct 2, 2026	AMBQ Ambiq Micro, Inc.	Sale(S)	2,343	$69.11	$161,921	Direct
Oct 2, 2026	AMBQ Ambiq Micro, Inc.	Sale(S)	2,828	$69.77	$197,316	Direct
Oct 2, 2026	AMBQ Ambiq Micro, Inc.	Sale(S)	284	$71.86	$20,408	Direct
Jun 2, 2026	AMBQ Ambiq Micro, Inc.	Exercise(M)	5,952	$16.80	$99,994	Direct
May 15, 2026	AMBQ Ambiq Micro, Inc.	Exercise(M)	5,952	$16.80	$99,994	Direct
May 14, 2026	AMBQ Ambiq Micro, Inc.	Sale(S)	25,918	$69.90	$1,811,619	Direct
May 14, 2026	AMBQ Ambiq Micro, Inc.	Sale(S)	82	$70.65	$5,793	Direct
May 14, 2026	AMBQ Ambiq Micro, Inc.	Exercise(M)	26,000	$16.80	$436,800	Direct
Mar 6, 2026	AMBQ Ambiq Micro, Inc.	Award(A)	41,728	-	$0	Direct
Oct 2, 2025	AMBQ Ambiq Micro, Inc.	Award(A)	52,667	-	-	Direct

1-10 of 10 transactions

About Winzeler Jeffrey G

Winzeler Jeffrey G (SEC CIK 0001312143) files insider reports with the SEC as Chief Financial Officer of Ambiq Micro, Inc. (AMBQ).

Signal8 holds 7 ownership filings by Winzeler Jeffrey G (1 Form 3, 6 Form 4), filed between Jul 29, 2025 and Oct 6, 2026. Those filings report 10 transactions, from Oct 2, 2025 to Oct 2, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Winzeler Jeffrey G's filings is in AUSTIN, TX.

Recent filings by Winzeler Jeffrey G

Oct 2, 2026: Open-market sales of AMBQ shares (3 lines, Form 4, code S).
Jun 2, 2026: Option exercise of AMBQ shares (Form 4, code M).
May 15, 2026: Option exercise of AMBQ shares (Form 4, code M).
May 14, 2026: Open-market sales of AMBQ shares (2 lines, Form 4, code S).
May 14, 2026: Option exercise of AMBQ shares (Form 4, code M).

Other insiders filing for Ambiq Micro, Inc. (AMBQ)

Hanson Scott McLean, Chief Technology Officer
Esaka Fumihide, Chief Executive Officer
Chen Sean Chihhsiang, President and COO
ZHANG KER, Director
HSIEH Wen Hsuan, Director
Chen Timothy, Director

How to read Form 4 transaction codes