AMBQ insider trades & Congress trades
Ambiq Micro, Inc.: public insider filings and Congress disclosures, in one place.
Bourse has recorded 22 open-market insider transactions in Ambiq Micro, Inc. (AMBQ) (0 purchases with code P and 22 sales with code S), the most recent on October 15, 2026.
In the last 90 days: 0 purchases by 0 insiders ($0) and 22 sales by 3 ($3.37M).
Insider transactions
SEC Form 4, open-market purchases (P) and sales (S) only. Awards, option exercises and tax withholding are excluded. “After” shows the stock’s return over the month following the trade, where available.
| Date | Insider | Role | Type | Shares | Price | Value | After 1M |
|---|---|---|---|---|---|---|---|
| Oct 15, 2026 | Esaka Fumihide | Chief Executive Officer | Sell | 500 | $49.13 | $25K | – |
| Oct 15, 2026 | Esaka Fumihide | Chief Executive Officer | Sell | 500 | $50.02 | $25K | – |
| Oct 15, 2026 | Esaka Fumihide | Chief Executive Officer | Sell | 2,800 | $51.15 | $143K | – |
| Oct 15, 2026 | Esaka Fumihide | Chief Executive Officer | Sell | 1,200 | $51.85 | $62K | – |
| Oct 15, 2026 | Hanson Scott McLean | Chief Technology Officer | Sell | 600 | $49.06 | $29K | – |
| Oct 15, 2026 | Hanson Scott McLean | Chief Technology Officer | Sell | 900 | $50.08 | $45K | – |
| Oct 15, 2026 | Hanson Scott McLean | Chief Technology Officer | Sell | 3,700 | $51.12 | $189K | – |
| Oct 15, 2026 | Hanson Scott McLean | Chief Technology Officer | Sell | 1,800 | $51.86 | $93K | – |
| Oct 14, 2026 | Chen Sean Chihhsiang | President and COO | Sell | 7,539 | $50.13 | $378K | – |
| Oct 14, 2026 | Chen Sean Chihhsiang | President and COO | Sell | 1,261 | $51.53 | $65K | – |
| Oct 14, 2026 | Chen Sean Chihhsiang | President and COO | Sell | 2,000 | $52.47 | $105K | – |
| Oct 14, 2026 | Chen Sean Chihhsiang | President and COO | Sell | 4,000 | $53.44 | $214K | – |
| Oct 14, 2026 | Chen Sean Chihhsiang | President and COO | Sell | 200 | $54.27 | $11K | – |
| Oct 5, 2026 | Chen Sean Chihhsiang | President and COO | Sell | 100 | $69.51 | $7K | – |
| Oct 5, 2026 | Chen Sean Chihhsiang | President and COO | Sell | 800 | $68.08 | $54K | – |
| Oct 5, 2026 | Chen Sean Chihhsiang | President and COO | Sell | 1,797 | $67.29 | $121K | – |
| Oct 5, 2026 | Chen Sean Chihhsiang | President and COO | Sell | 5,508 | $66.38 | $366K | – |
| Sep 15, 2026 | Esaka Fumihide | Chief Executive Officer | Sell | 3,785 | $59.56 | $225K | – |
| Sep 15, 2026 | Esaka Fumihide | Chief Executive Officer | Sell | 9,615 | $60.55 | $582K | – |
| Sep 15, 2026 | Esaka Fumihide | Chief Executive Officer | Sell | 100 | $61.00 | $6K | – |
| Sep 2, 2026 | Esaka Fumihide | Chief Executive Officer | Sell | 1,452 | $56.15 | $82K | – |
| Sep 2, 2026 | Esaka Fumihide | Chief Executive Officer | Sell | 9,575 | $56.77 | $544K | – |
Data as of October 22, 2026. Public filings only. A purchase or sale by a politician or an insider does not by itself imply any wrongdoing.
New to these filings? Read how to read a Form 4, how Congress trades are disclosed and what insider cluster buying means. Sources and limits are on the Methodology page.
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