Ambiq Micro's three largest insider shareholders as of April 22, 2026 are Xvi Associates, Llc Kpcb (TenPercentOwner, 2.66Mn shares), Xvi Associates, Llc Kpcb (TenPercentOwner, 2.66Mn shares), Wen Hsuan Hsieh (Director, 633.92K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Xvi Associates, Llc Kpcb | - | 0 | 2,661,028 | 31 Jul, 2025 |
| Xvi Associates, Llc Kpcb | - | 0 | 2,661,028 | 31 Jul, 2025 |
| Wen Hsuan Hsieh | - | 0 | 633,920 | 20 Feb, 2026 |
| Wen Hsuan Hsieh | - | 0 | 633,920 | 20 Feb, 2026 |
| Fumihide Esaka | Chief Executive Officer | 391,189 | 0 | 02 Apr, 2026 |
| Fumihide Esaka | Chief Executive Officer | 391,189 | 0 | 02 Apr, 2026 |
| Scott Mclean Hanson | Chief Technology Officer | 203,126 | 0 | 02 Apr, 2026 |
| Scott Mclean Hanson | Chief Technology Officer | 203,126 | 0 | 02 Apr, 2026 |
| Sean Chihhsiang Chen | President And Coo | 120,275 | 0 | 02 Apr, 2026 |
| Sean Chihhsiang Chen | President And Coo | 120,275 | 0 | 02 Apr, 2026 |
| Jeffrey G Winzeler | Chief Financial Officer | 94,395 | 0 | 02 Apr, 2026 |
| Jeffrey G Winzeler | Chief Financial Officer | 94,395 | 0 | 02 Apr, 2026 |
| Michele Kim Connors | General Counsel | 61,365 | 0 | 02 Apr, 2026 |
| Michele Kim Connors | General Counsel | 60,554 | 0 | 06 Apr, 2026 |
| Joseph A Tautges | - | 48,746 | 0 | 28 Jan, 2026 |
| Joseph A Tautges | - | 48,746 | 0 | 28 Jan, 2026 |
| Timothy Chen | - | 47,618 | 0 | 31 Jul, 2025 |
| Timothy Chen | - | 47,618 | 0 | 31 Jul, 2025 |
| Ker Zhang | - | 23,809 | 0 | 31 Jul, 2025 |
| Ker Zhang | - | 23,809 | 0 | 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 |
|---|---|---|---|---|---|---|---|---|
| 02 Apr, 2026 | Michele Kim Connors | Common Stock | D | 660 | $26.04 | 60,705 | D | S |
| 02 Apr, 2026 | Michele Kim Connors | Common Stock | D | 151 | $26.65 | 60,554 | D | S |
| 06 Mar, 2026 | Michele Kim Connors | Common Stock | A | 32,123 | $0.00 | 61,365 | D | A |
| 06 Mar, 2026 | Sean Chihhsiang Chen | Common Stock | A | 64,246 | $0.00 | 120,275 | D | A |
| 06 Mar, 2026 | Fumihide Esaka | Common Stock | A | 160,616 | $0.00 | 391,189 | D | A |
| 06 Mar, 2026 | Scott Mclean Hanson | Common Stock | A | 80,308 | $0.00 | 203,126 | D | A |
| 06 Mar, 2026 | Jeffrey G Winzeler | Common Stock | A | 41,728 | $0.00 | 94,395 | D | A |
| 06 Mar, 2026 | Sean Chihhsiang Chen | Common Stock | A | 64,246 | $0.00 | 120,275 | D | A |
| 06 Mar, 2026 | Michele Kim Connors | Common Stock | A | 32,123 | $0.00 | 61,365 | D | A |
| 06 Mar, 2026 | Fumihide Esaka | Common Stock | A | 160,616 | $0.00 | 391,189 | D | A |
| 06 Mar, 2026 | Scott Mclean Hanson | Common Stock | A | 80,308 | $0.00 | 203,126 | D | A |
| 06 Mar, 2026 | Jeffrey G Winzeler | Common Stock | A | 41,728 | $0.00 | 94,395 | D | A |
| 18 Feb, 2026 | Wen Hsuan Hsieh | Common Stock | A | 238,931 | $12.60 | 633,920 | I | M |
| 18 Feb, 2026 | Wen Hsuan Hsieh | Warrant (Right to Buy) | D | 238,931 | $0.00 | 0 | I | M |
| 26 Jan, 2026 | Scott Mclean Hanson | Common Stock | D | 10,000 | $31.00 | 122,818 | D | S |
| 26 Jan, 2026 | Joseph A Tautges | Common Stock | D | 7,800 | $31.00 | 48,746 | D | S |
| 05 Jan, 2026 | Michele Kim Connors | Common Stock | A | 23,759 | $0.00 | 23,759 | D | A |
| 05 Jan, 2026 | Michele Kim Connors | Common Stock | A | 5,483 | $0.00 | 29,242 | D | A |
| 02 Oct, 2025 | Jeffrey G Winzeler | Common Stock | A | 52,667 | $0.00 | 52,667 | D | A |
| 02 Oct, 2025 | Fumihide Esaka | Common Stock | A | 159,907 | $0.00 | 176,913 | D | A |