Ambarella (NASDAQ: AMBA) insider transactions
In the twelve months to 10 November 2026, executives and directors of Ambarella reported 43 open-market sales of 239,263 shares ($16.6m) and 0 open-market purchases, by 7 people, according to the Form 4 filings they submitted to the SEC.
Latest transactions
| Date | Insider | Role | Transaction | Shares | Price | Held after | Filing |
|---|---|---|---|---|---|---|---|
| 25 September 2026 | Paisley Christopher B | Director | Open-market sale, 10b5-1 plan | −250 | $70.76 | 43,930 | Form 4 |
| 18 September 2026 | Young John Alexander | CFO | Open-market sale, 10b5-1 plan | −1,896 | $67.28 | 107,806 | Form 4 |
| 17 September 2026 | Young John Alexander | CFO | Open-market sale | −3,126 | $64.83 | 109,702 | Form 4 |
| 17 September 2026 | Lee Chan W | Chief Operations Officer | Open-market sale | −2,893 | $64.83 | 154,443 | Form 4 |
| 17 September 2026 | Ju Chi-Hong | Senior VP, Systems & GM | Open-market sale | −2,009 | $64.83 | 154,153 | Form 4 |
| 17 September 2026 | Wang Feng-Ming | CEO | Open-market sale | −6,086 | $64.83 | 767,759 | Form 4 |
| 8 September 2026 | Paisley Christopher B | Director | Grant or award | +3,151 | — | 44,180 | Form 4 |
| 8 September 2026 | Richardson David Jeffrey | Director | Grant or award | +3,151 | — | 5,649 | Form 4 |
| 8 September 2026 | Hon Hsiao-Wuen | Director | Grant or award | +3,151 | — | 33,927 | Form 4 |
| 8 September 2026 | Schwarting Elizabeth M | Director | Grant or award | +3,151 | — | 9,841 | Form 4 |
| 8 September 2026 | Breithaupt Chantelle Yvette | Director | Grant or award | +3,151 | — | 8,091 | Form 4 |
| 8 September 2026 | Bryant Gregory M | Director | Grant or award | +3,151 | — | 5,608 | Form 4 |
| 8 September 2026 | Hu Chenming | Director | Grant or award | +3,151 | — | 32,667 | Form 4 |
| 9 July 2026 | Chen Yun-Lung | VP, Business Dev. & Marketing | Open-market sale | −5,958 | $78.66 | 60,557 | Form 4 |
| 1 July 2026 | Wang Feng-Ming | CEO | Open-market sale, 10b5-1 plan | −16,250 | $90.08 | 773,607 | Form 4 |
| 1 July 2026 | Ju Chi-Hong | Senior VP, Systems & GM | Open-market sale | −10,000 | $88.84 | 155,924 | Form 4 |
| 26 June 2026 | Paisley Christopher B | Director | Open-market sale, 10b5-1 plan | −250 | $62.01 | 41,029 | Form 4 |
| 17 June 2026 | Wang Feng-Ming | CEO | Open-market sale | −6,204 | $67.87 | 799,857 | Form 4 |
| 17 June 2026 | Wang Feng-Ming | CEO | Gift | −10,000 | — | 789,857 | Form 4 |
| 17 June 2026 | Ju Chi-Hong | Senior VP, Systems & GM | Open-market sale | −2,017 | $67.87 | 165,924 | Form 4 |
Names appear as in the filing, surname first. A dash in the price column means the filing reports none, as in grants and gifts.
How to read the table
Only open-market purchases and sales are trades the insider chose to make at the market price, and they are the ones counted in the summary above. Grants, option exercises and shares withheld for tax come from pay plans. A sale marked as a 10b5-1 plan was scheduled in advance under a written plan.
Where each row comes from
From the Form 4 that each executive, director or large shareholder must file with the SEC within two business days of a transaction, read up to 10 November 2026. Each row links to its filing on EDGAR. Only transactions in shares are listed, not derivatives, and amended filings are left out. The accounts of the company are on the Ambarella page; the method, in data sources.
Information prepared from the Form 4 filings submitted to the SEC, for information purposes only. It is not financial advice or a recommendation to buy or sell. Updated on 12 November 2026.