Ambiq Micro, Inc. (AMBQ) Insider Ownership

Historic Insider Ownership Trends

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares Report Date
Xvi Associates, Llc Kpcb 1,488,949 31 Jul, 2025
Wen Hsuan Hsieh 394,989 31 Jul, 2025
Fumihide Esaka Chief Executive Officer 176,913 06 Oct, 2025
Scott Mclean Hanson Chief Financial Officer 132,818 06 Oct, 2025
Joseph A Tautges 56,546 31 Jul, 2025
Sean Chihhsiang Chen President And Coo 56,029 06 Oct, 2025
Jeffrey G Winzeler Chief Financial Officer 52,667 06 Oct, 2025
Timothy Chen 47,618 31 Jul, 2025
Michele Kim Connors General Counsel 29,242 07 Jan, 2026
Ker Zhang 23,809 31 Jul, 2025

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
05 Jan, 2026 Michele Kim Connors Common Stock A 5,483 $0.00 29,242 D A
05 Jan, 2026 Michele Kim Connors Common Stock A 23,759 $0.00 23,759 D A
02 Oct, 2025 Jeffrey G Winzeler Common Stock A 52,667 $0.00 52,667 D A
02 Oct, 2025 Scott Mclean Hanson - - 132,818 D
02 Oct, 2025 Scott Mclean Hanson Common Stock A 83,819 $0.00 132,818 D A
02 Oct, 2025 Fumihide Esaka Common Stock A 159,907 $0.00 176,913 D A
02 Oct, 2025 Sean Chihhsiang Chen Common Stock A 56,029 $0.00 56,029 D A
31 Jul, 2025 Xvi Associates, Llc Kpcb - - 1,294,331 I
31 Jul, 2025 Xvi Associates, Llc Kpcb - - 1,271,037 I
31 Jul, 2025 Xvi Associates, Llc Kpcb - - 1,488,949 I
31 Jul, 2025 Xvi Associates, Llc Kpcb Common Stock A 98,958 - 1,271,037 I C
31 Jul, 2025 Xvi Associates, Llc Kpcb Common Stock A 23,294 - 1,294,331 I C
31 Jul, 2025 Xvi Associates, Llc Kpcb Common Stock A 748,046 - 1,172,079 I C
31 Jul, 2025 Xvi Associates, Llc Kpcb Common Stock A 194,618 - 1,488,949 I C
31 Jul, 2025 Wen Hsuan Hsieh Common Stock A 394,989 - 394,989 I C
31 Jul, 2025 Wen Hsuan Hsieh - - 394,989 I
29 Jul, 2025 Ker Zhang Common Stock A 23,809 $0.00 23,809 D A
29 Jul, 2025 Joseph A Tautges Common Stock A 56,546 $0.00 56,546 D A
29 Jul, 2025 Timothy Chen Common Stock A 47,618 $0.00 47,618 D A
29 Jul, 2025 Timothy Chen - - 47,618 D