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 |
|---|---|---|---|---|---|---|---|---|
| Oct 15, 2026 | Oct 16 8:53 PM | Scott Mclean HansonDirector, Chief Technology Officer | Sale | 7,000 | $51.00 | $357.0K | 212,546(D) | View → |
| Oct 15, 2026 | Oct 16 8:52 PM | Fumihide EsakaDirector, Chief Executive Officer | Sale | 5,000 | $51.00 | $255.0K | 443,900(D) | View → |
| Oct 14, 2026 | Oct 16 8:51 PM | Sean Chihhsiang ChenPresident and COO | Sale | 15,000 | $51.50 | $772.4K | 106,268(D) | View → |
| Oct 2, 2026 | Oct 7 12:16 AM | Jeffrey G WinzelerChief Financial Officer | Sale | 5,455 | $69.60 | $379.6K | 100,844(D) | View → |
| Oct 2, 2026 | Oct 6 10:53 PM | Fumihide EsakaDirector, Chief Executive Officer | Sale | 16,560 | $69.60 | $1.2M | 443,900(D) | View → |
| Oct 2, 2026 | Oct 6 10:49 PM | Scott Mclean HansonDirector, Chief Technology Officer | Sale | 8,680 | $69.60 | $604.1K | 212,546(D) | View → |
| Oct 5, 2026 | Oct 6 10:45 PM | Sean Chihhsiang ChenPresident and COO | Sale | 8,205 | $66.78 | $548.0K | 106,268(D) | View → |
| Oct 2, 2026 | Oct 6 10:45 PM | Sean Chihhsiang ChenPresident and COO | Sale | 5,802 | $69.60 | $403.8K | 114,473(D) | View → |
| Oct 5, 2026 | Oct 5 8:45 PM | SEAN CHEN | Proposed Sale | 53,205 | $68.18 | $3.6M | — | View → |
| Oct 2, 2026 | Oct 2 8:16 PM | Jeffrey G. Winzeler | Proposed Sale | 5,455 | $69.15 | $377.2K | — | View → |
| Oct 2, 2026 | Oct 2 8:11 PM | Scott McLean Hanson | Proposed Sale | 8,680 | $69.15 | $600.2K | — | View → |
| Oct 2, 2026 | Oct 2 8:07 PM | Fumihide Esaka | Proposed Sale | 16,560 | $69.15 | $1.1M | — | View → |
| Oct 2, 2026 | Oct 2 8:04 PM | Sean Chihhsiang Chen | Proposed Sale | 5,802 | $69.15 | $401.2K | — | View → |
| Sep 15, 2026 | Sep 17 8:06 PM | Scott Mclean HansonDirector, Chief Technology Officer | Sale | 7,000 | $60.28 | $421.9K | 221,226(D) | View → |
| Sep 11, 2026 | Sep 15 10:58 PM | Ker ZhangDirector | Sale | 10,000 | $63.44 | $634.4K | 20,366(D) | View → |
| Sep 14, 2026 | Sep 15 10:57 PM | Sean Chihhsiang ChenPresident and COO | Sale | 15,000 | $60.14 | $902.1K | 120,275(D) | View → |
| Sep 15, 2026 | Sep 15 10:56 PM | Fumihide EsakaDirector, Chief Executive Officer | Sale | 13,500 | $60.28 | $813.7K | 460,460(D) | View → |
| Sep 11, 2026 | Sep 15 10:56 PM | Fumihide EsakaDirector, Chief Executive Officer | Sale | 50,000 | $63.36 | $3.2M | 460,460(D) | View → |
| Sep 11, 2026 | Sep 11 8:15 PM | KER ZHANG | Proposed Sale | 10,000 | $63.44 | $634.4K | — | View → |
| Sep 11, 2026 | Sep 11 8:11 PM | FUMIHIDE ESAKA | Proposed Sale | 50,000 | $63.36 | $3.2M | — | View → |
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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 → |
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