Ambiq Micro, Inc. (AMBQ) Insider Trading -- Recent Executive & Director Transactions
12 insiders reported 126 Form 4 transactions for Ambiq Micro, Inc. (AMBQ) over the past 18 months (most recent 2026-10-06). Recent activity: Chen Sean Chihhsiang (President and COO) Sell 5,508 shares, Chen Sean Chihhsiang (President and COO) Sell 100 shares, Esaka Fumihide (Chief Executive Officer) Sell 7,113 shares, Chen Sean Chihhsiang (President and COO) Sell 2,492 shares, Winzeler Jeffrey G (Chief Financial Officer) Sell 2,828 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-10-06 | Chen Sean Chihhsiang | President and COO | Sell | 5,508 | $365,625 |
| 2026-10-06 | Chen Sean Chihhsiang | President and COO | Sell | 100 | $6,951 |
| 2026-10-06 | Esaka Fumihide | Chief Executive Officer | Sell | 7,113 | $491,567 |
| 2026-10-06 | Chen Sean Chihhsiang | President and COO | Sell | 2,492 | $172,218 |
| 2026-10-06 | Winzeler Jeffrey G | Chief Financial Officer | Sell | 2,828 | $197,316 |
| 2026-10-06 | Hanson Scott McLean | Chief Technology Officer | Sell | 4,500 | $313,975 |
| 2026-10-06 | Esaka Fumihide | Chief Executive Officer | Sell | 8,585 | $598,994 |
| 2026-10-06 | Chen Sean Chihhsiang | President and COO | Sell | 3,008 | $209,875 |
| 2026-10-06 | Winzeler Jeffrey G | Chief Financial Officer | Sell | 284 | $20,408 |
| 2026-10-06 | Hanson Scott McLean | Chief Technology Officer | Sell | 452 | $32,480 |
| 2026-10-06 | Esaka Fumihide | Chief Executive Officer | Sell | 862 | $61,943 |
| 2026-10-06 | Chen Sean Chihhsiang | President and COO | Sell | 302 | $21,701 |
| 2026-10-06 | Winzeler Jeffrey G | Chief Financial Officer | Sell | 2,343 | $161,921 |
| 2026-10-06 | Chen Sean Chihhsiang | President and COO | Sell | 1,797 | $120,913 |
| 2026-10-06 | Chen Sean Chihhsiang | President and COO | Sell | 800 | $54,461 |
| 2026-10-06 | Hanson Scott McLean | Chief Technology Officer | Sell | 3,728 | $257,636 |
| 2026-09-17 | Hanson Scott McLean | Chief Technology Officer | Buy | 7,000 | $56,840 |
| 2026-09-17 | Hanson Scott McLean | Chief Technology Officer | Sell | 1,953 | $116,270 |
| 2026-09-17 | Hanson Scott McLean | Chief Technology Officer | Sell | 4,947 | $299,573 |
| 2026-09-17 | Hanson Scott McLean | Chief Technology Officer | Sell | 100 | $6,100 |
| 2026-09-15 | ZHANG KER | Director | Sell | 9,100 | $576,809 |
| 2026-09-15 | Esaka Fumihide | Chief Executive Officer | Buy | 50,000 | $630,000 |
| 2026-09-15 | Chen Sean Chihhsiang | President and COO | Buy | 15,000 | $121,800 |
| 2026-09-15 | ZHANG KER | Director | Sell | 900 | $57,552 |
| 2026-09-15 | Esaka Fumihide | Chief Executive Officer | Sell | 42,083 | $2.7M |
Source: SEC Form 4 filings · as of 2026-10-06