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 |
|---|---|---|---|---|---|---|---|
| May 15, 2026 | May 18 9:59 PM | Scott Mclean HansonDirector, Chief Technology Officer | Option Exercise | 8,100 | $8.12 | 69,279(D) | View → |
| May 14, 2026 | May 18 9:59 PM | Scott Mclean HansonDirector, Chief Technology Officer | Option Exercise | 10,200 | $8.12 | 77,379(D) | View → |
| May 15, 2026 | May 18 9:48 PM | Sean Chihhsiang ChenPresident and COO | Option Exercise | 55,685 | $5.88 | 1(D) | View → |
| May 15, 2026 | May 18 9:44 PM | Fumihide EsakaDirector, Chief Executive Officer | Option Exercise | 60,000 | $12.60 | 184,543(D) | View → |
| May 14, 2026 | May 18 9:44 PM | Fumihide EsakaDirector, Chief Executive Officer | Option Exercise | 60,000 | $8.12 | 144,470(D) | View → |
| Feb 18, 2026 | Feb 20 10:47 PM | Wen Hsuan HsiehDirector | Option Exercise | 238,931 | $12.60 | 0(I) | View → |
| Oct 7, 2025 | Feb 11 1:08 AM | Fumihide EsakaDirector, Chief Executive Officer | Option Exercise | 53,660 | $5.88 | 0(D) | View → |
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