Ambiq Micro, Inc.
AMBQ
44 insider filings · Latest: Oct 15, 2026
Common Stock Transactions
| Txn Date | Accepted | Insider | Type | Shares | Avg Price | Value | Shares Owned | Filing |
|---|---|---|---|---|---|---|---|---|
| Sep 4, 2026 | Sep 9 9:10 PM | Sean Chihhsiang ChenPresident and COO | Sale | 15,000 | $57.17 | $857.6K | 120,275(D) | View → |
| Sep 4, 2026 | Sep 9 9:08 PM | Ker ZhangDirector | Sale | 185 | $56.92 | $10.5K | 30,366(D) | View → |
| Sep 4, 2026 | Sep 4 8:39 PM | SEAN CHEN | Proposed Sale | 30,000 | $56.43 | $1.7M | — | View → |
| Sep 4, 2026 | Sep 4 8:07 PM | KER ZHANG | Proposed Sale | 185 | $56.92 | $10.5K | — | View → |
| Sep 2, 2026 | Sep 2 8:47 PM | Fumihide EsakaDirector, Chief Executive Officer | Sale | 11,027 | $56.69 | $625.1K | 460,460(D) | View → |
| Sep 1, 2026 | Sep 2 8:47 PM | Fumihide EsakaDirector, Chief Executive Officer | Sale | 48,973 | $56.39 | $2.8M | 460,460(D) | View → |
| Aug 31, 2026 | Sep 2 8:47 PM | Fumihide EsakaDirector, Chief Executive Officer | Sale | 48,500 | $57.44 | $2.8M | 460,460(D) | View → |
| Sep 2, 2026 | Sep 2 8:14 PM | FUMIHIDE (HUMI) ESAKA | Proposed Sale | 11,027 | $56.69 | $625.1K | — | View → |
| Sep 1, 2026 | Sep 1 8:15 PM | FUMIHIDE (HUMI) ESAKA | Proposed Sale | 48,973 | $56.39 | $2.8M | — | View → |
| Aug 31, 2026 | Aug 31 8:37 PM | FUMIHIDE (HUMI) ESAKA | Proposed Sale | 35,000 | $57.42 | $2.0M | — | View → |
| Aug 27, 2026 | Aug 28 9:19 PM | Scott Mclean HansonDirector, Chief Technology Officer | Sale | 27,500 | $59.80 | $1.6M | 221,226(D) | View → |
| Aug 26, 2026 | Aug 28 9:19 PM | Scott Mclean HansonDirector, Chief Technology Officer | Sale | 27,500 | $59.58 | $1.6M | 221,226(D) | View → |
| Aug 27, 2026 | Aug 27 8:19 PM | SCOTT HANSON | Proposed Sale | 27,500 | $59.80 | $1.6M | — | View → |
| Aug 26, 2026 | Aug 26 8:23 PM | SCOTT HANSON | Proposed Sale | 27,500 | $59.58 | $1.6M | — | View → |
| Aug 14, 2026 | Aug 18 8:40 PM | Scott Mclean HansonDirector, Chief Technology Officer | Sale | 7,000 | $64.38 | $450.6K | 211,226(D) | View → |
| Aug 14, 2026 | Aug 18 8:30 PM | Fumihide EsakaDirector, Chief Executive Officer | Sale | 13,500 | $64.39 | $869.2K | 451,189(D) | View → |
| Aug 14, 2026 | Aug 14 8:43 PM | SCOTT HANSON | Proposed Sale | 21,000 | $64.34 | $1.4M | — | View → |
| Aug 14, 2026 | Aug 14 8:40 PM | FUMIHIDE ESAKA | Proposed Sale | 45,500 | $64.34 | $2.9M | — | View → |
| May 27, 2026 | May 29 11:51 PM | Timothy ChenDirector | Sale | 70,592 | $79.79 | $5.6M | 0(I) | View → |
| May 27, 2026 | May 27 7:14 PM | Triumph Way Investment Inc | Proposed Sale | 70,592 | $79.99 | $5.6M | — | View → |
Stock Options & Derivatives
| Txn Date | Accepted | Insider | Type | Shares | Exercise Price | Shares Owned | Filing |
|---|---|---|---|---|---|---|---|
| Oct 15, 2026 | Oct 16 8:53 PM | Scott Mclean HansonDirector, Chief Technology Officer | Option Exercise | 7,000 | $8.12 | 38,279(D) | View → |
| Oct 15, 2026 | Oct 16 8:52 PM | Fumihide EsakaDirector, Chief Executive Officer | Option Exercise | 5,000 | $8.12 | 53,507(D) | View → |
| Oct 14, 2026 | Oct 16 8:51 PM | Sean Chihhsiang ChenPresident and COO | Option Exercise | 15,000 | $8.12 | 119,423(D) | View → |
| Sep 15, 2026 | Sep 17 8:06 PM | Scott Mclean HansonDirector, Chief Technology Officer | Option Exercise | 7,000 | $8.12 | 45,279(D) | View → |
| Sep 14, 2026 | Sep 15 10:57 PM | Sean Chihhsiang ChenPresident and COO | Option Exercise | 15,000 | $8.12 | 134,423(D) | View → |
| Sep 15, 2026 | Sep 15 10:56 PM | Fumihide EsakaDirector, Chief Executive Officer | Option Exercise | 13,500 | $8.12 | 58,507(D) | View → |
| Sep 11, 2026 | Sep 15 10:56 PM | Fumihide EsakaDirector, Chief Executive Officer | Option Exercise | 50,000 | $12.60 | 144,279(D) | View → |
| Sep 4, 2026 | Sep 9 9:10 PM | Sean Chihhsiang ChenPresident and COO | Option Exercise | 15,000 | $8.12 | 149,423(D) | View → |
| Sep 4, 2026 | Sep 9 9:08 PM | Ker ZhangDirector | Option Exercise | 1,785 | $5.88 | 0(D) | View → |
| Sep 2, 2026 | Sep 2 8:47 PM | Fumihide EsakaDirector, Chief Executive Officer | Option Exercise | 11,027 | $12.60 | 19,007(D) | View → |
| Sep 1, 2026 | Sep 2 8:47 PM | Fumihide EsakaDirector, Chief Executive Officer | Option Exercise | 48,973 | $12.60 | 30,034(D) | View → |
| Aug 31, 2026 | Sep 2 8:47 PM | Fumihide EsakaDirector, Chief Executive Officer | Option Exercise | 57,771 | $12.60 | 175,272(D) | View → |
| Aug 27, 2026 | Aug 28 9:19 PM | Scott Mclean HansonDirector, Chief Technology Officer | Option Exercise | 27,500 | $8.12 | 83,558(D) | View → |
| Aug 26, 2026 | Aug 28 9:19 PM | Scott Mclean HansonDirector, Chief Technology Officer | Option Exercise | 37,500 | $8.12 | 111,058(D) | View → |
| Aug 14, 2026 | Aug 18 8:40 PM | Scott Mclean HansonDirector, Chief Technology Officer | Option Exercise | 7,000 | $8.12 | 62,279(D) | View → |
| Aug 14, 2026 | Aug 18 8:30 PM | Fumihide EsakaDirector, Chief Executive Officer | Option Exercise | 13,500 | $8.12 | 85,507(D) | View → |
| Jun 2, 2026 | Jun 4 9:01 PM | Jeffrey G WinzelerChief Financial Officer | Option Exercise | 5,952 | $16.80 | 104,953(D) | View → |
| Jul 31, 2025 | May 29 11:49 PM | Timothy ChenDirector | Conversion | 1,707,853 | — | 0(I) | View → |
| May 15, 2026 | May 18 10:12 PM | Jeffrey G WinzelerChief Financial Officer | Option Exercise | 5,952 | $16.80 | 110,905(D) | View → |
| May 14, 2026 | May 18 10:12 PM | Jeffrey G WinzelerChief Financial Officer | Option Exercise | 26,000 | $16.80 | 116,857(D) | View → |
Page 1 of 2
Next →