Through the 90-day period concluding February 19, 2026, Ambiq Micro's top three insider stakeholders include TenPercentOwner Xvi Associates, Llc Kpcb (1.49Mn shares), Director Wen Hsuan Hsieh (394.99K shares), Chief Executive Officer Fumihide Esaka (176.91K shares).
| 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 Technology Officer | 122,818 | 28 Jan, 2026 |
| Sean Chihhsiang Chen | President And Coo | 56,029 | 06 Oct, 2025 |
| Jeffrey G Winzeler | Chief Financial Officer | 52,667 | 06 Oct, 2025 |
| Joseph A Tautges | 48,746 | 28 Jan, 2026 | |
| 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.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 26 Jan, 2026 | Joseph A Tautges | Common Stock | D | 7,800 | $31.00 | 48,746 | D | S |
| 26 Jan, 2026 | Scott Mclean Hanson | Common Stock | D | 10,000 | $31.00 | 122,818 | D | S |
| 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 | Jeffrey G Winzeler | - | - | 52,667 | 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 | Common Stock | A | 98,958 | - | 1,271,037 | I | C |
| 31 Jul, 2025 | Xvi Associates, Llc Kpcb | - | - | 1,271,037 | I | |||
| 31 Jul, 2025 | Xvi Associates, Llc Kpcb | - | - | 1,172,079 | I | |||
| 31 Jul, 2025 | Xvi Associates, Llc Kpcb | - | - | 1,488,949 | I | |||
| 31 Jul, 2025 | Xvi Associates, Llc Kpcb | - | - | 1,294,331 | I | |||
| 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 |
| 29 Jul, 2025 | Ker Zhang | Common Stock | A | 23,809 | $0.00 | 23,809 | D | A |
| 29 Jul, 2025 | Joseph A Tautges | - | - | 56,546 | D |