AMBQ insider trades & Congress trades
Ambiq Micro, Inc.: public insider filings and Congress disclosures, in one place.
Bourse has recorded 63 open-market insider transactions in Ambiq Micro, Inc. (AMBQ) (0 purchases with code P and 63 sales with code S), the most recent on October 15, 2026.
In the last 90 days: 0 purchases by 0 insiders ($0) and 63 sales by 5 ($22.1M).
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 | 5,508 | $66.38 | $366K | – |
| 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 | 800 | $68.08 | $54K | – |
| Oct 5, 2026 | Chen Sean Chihhsiang | President and COO | Sell | 100 | $69.51 | $7K | – |
| Oct 2, 2026 | Chen Sean Chihhsiang | President and COO | Sell | 2,492 | $69.11 | $172K | – |
| Oct 2, 2026 | Chen Sean Chihhsiang | President and COO | Sell | 3,008 | $69.77 | $210K | – |
| Oct 2, 2026 | Chen Sean Chihhsiang | President and COO | Sell | 302 | $71.86 | $22K | – |
| Oct 2, 2026 | Hanson Scott McLean | Chief Technology Officer | Sell | 3,728 | $69.11 | $258K | – |
| Oct 2, 2026 | Hanson Scott McLean | Chief Technology Officer | Sell | 4,500 | $69.77 | $314K | – |
| Oct 2, 2026 | Hanson Scott McLean | Chief Technology Officer | Sell | 452 | $71.86 | $32K | – |
| Oct 2, 2026 | Esaka Fumihide | Chief Executive Officer | Sell | 7,113 | $69.11 | $492K | – |
| Oct 2, 2026 | Esaka Fumihide | Chief Executive Officer | Sell | 8,585 | $69.77 | $599K | – |
| Oct 2, 2026 | Esaka Fumihide | Chief Executive Officer | Sell | 862 | $71.86 | $62K | – |
| Oct 2, 2026 | Winzeler Jeffrey G | Chief Financial Officer | Sell | 2,343 | $69.11 | $162K | – |
| Oct 2, 2026 | Winzeler Jeffrey G | Chief Financial Officer | Sell | 2,828 | $69.77 | $197K | – |
| Oct 2, 2026 | Winzeler Jeffrey G | Chief Financial Officer | Sell | 284 | $71.86 | $20K | – |
| Sep 15, 2026 | Esaka Fumihide | Chief Executive Officer | Sell | 3,785 | $59.56 | $225K | – |
Showing the 30 most recent of 63 transactions.
Data as of November 8, 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.
See these filings as they land
Bourse collects Congress trades, SEC Form 4 insider filings and 13F fund holdings in one live feed, and flags insider buying clusters automatically. Free to start.
Bourse provides financial data and editorial information, parts of which are generated by AI. This page is for general education only. It is not personalised investment advice or a recommendation to buy or sell any financial instrument. Make your own decisions.