14 insiders reported 94 Form 4 transactions for AMBARELLA INC (AMBA) over the past 18 months (most recent 2026-09-21). Recent activity: Young John Alexander (CFO) Sell 1,896 shares, Wang Feng-Ming (CEO) Sell 6,086 shares, Lee Chan W (Chief Operations Officer) Sell 2,893 shares, Ju Chi-Hong (Senior VP, Systems & GM) Sell 2,009 shares, Young John Alexander (CFO) Sell 3,126 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-21 | Young John Alexander | CFO | Sell | 1,896 | $127,563 |
| 2026-09-18 | Wang Feng-Ming | CEO | Sell | 6,086 | $394,555 |
| 2026-09-18 | Lee Chan W | Chief Operations Officer | Sell | 2,893 | $187,553 |
| 2026-09-18 | Ju Chi-Hong | Senior VP, Systems & GM | Sell | 2,009 | $130,243 |
| 2026-09-18 | Young John Alexander | CFO | Sell | 3,126 | $202,659 |
| 2026-09-10 | Hu Chenming | Director | Buy | 3,151 | $0 |
| 2026-09-10 | PAISLEY CHRISTOPHER B | Director | Buy | 3,151 | $0 |
| 2026-09-10 | RICHARDSON DAVID JEFFREY | Director | Buy | 3,151 | $0 |
| 2026-09-10 | Hon Hsiao-Wuen | Director | Buy | 3,151 | $0 |
| 2026-09-10 | Bryant Gregory M | Director | Buy | 3,151 | $0 |
| 2026-09-10 | Schwarting Elizabeth M | Director | Buy | 3,151 | $0 |
| 2026-09-10 | Breithaupt Chantelle Yvette | Director | Buy | 3,151 | $0 |
| 2026-07-10 | Chen Yun-Lung | VP, Business Dev. & Marketing | Sell | 5,958 | $468,656 |
| 2026-07-02 | Wang Feng-Ming | CEO | Sell | 16,250 | $1.5M |
| 2026-07-02 | Ju Chi-Hong | Senior VP, Systems & GM | Sell | 10,000 | $888,400 |
| 2026-06-30 | PAISLEY CHRISTOPHER B | Director | Sell | 250 | $15,502 |
| 2026-06-18 | Wang Feng-Ming | CEO | Sell | 6,204 | $421,065 |
| 2026-06-18 | Wang Feng-Ming | CEO | Sell | 10,000 | $0 |
| 2026-06-18 | Ju Chi-Hong | Senior VP, Systems & GM | Sell | 2,017 | $136,894 |
| 2026-06-18 | Young John Alexander | CFO | Sell | 3,186 | $216,234 |
| 2026-06-18 | Young John Alexander | CFO | Sell | 1,847 | $123,712 |
| 2026-06-18 | Lee Chan W | Chief Operations Officer | Sell | 2,951 | $200,284 |
| 2026-06-16 | Chen Yun-Lung | VP, Business Development and | Sell | 9,856 | $660,943 |
| 2026-05-28 | Wang Feng-Ming | CEO | Sell | 6,065 | $553,310 |
| 2026-05-28 | Wang Feng-Ming | CEO | Sell | 17,285 | $1.6M |
来源：SEC Form 4 申报文件 · 截至 2026-09-21