Ambarella, Inc.
A designer of low-power computer-vision chips, Ambarella's processors have powered GoPro action cameras, DJI drones, and security cameras, and now handle edge AI tasks in cars and smart devices. Founded in 2004 by video-compression experts Fermi Wang and Les Kohn in Santa Clara, California, the company shares its name with a tropical fruit also called the golden apple or June plum.
Granted 51.7K · Sold 18.1K
Granted 282.0K · Sold 194.9K
Granted 76.0K · Sold 76.8K
Granted 93.7K · Sold 42.1K
Granted 59.8K · Sold 39.8K
Granted 3.2K
Sold 6.6K
Granted 37.3K · Sold 24.3K
Granted 17.1K · Sold 8.1K
Granted 9.1K · Sold 4.8K
Granted 9.1K · Sold 377
Granted 9.1K
Granted 10.0K · Sold 12.3K
Granted 6.6K
Granted 9.1K · Sold 6.7K
Granted 2.5K
Granted 2.5K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Kohn LeslieChief Technology Officer, Director · 15 transactions | +3.6% | 977.4K | 51.7K | — | 18.1K |
| Wang Feng-MingCEO, Director · 38 transactions | +3% | 789.9K | 282.0K | — | 194.9K |
| Ju Chi-HongSenior VP, Systems & GM · 37 transactions | — | 173.9K | 76.0K | — | 76.8K |
| Lee Chan WChief Operations Officer · 32 transactions | +50.8% | 157.1K | 93.7K | — | 42.1K |
| Young John AlexanderCFO · 25 transactions | — | 112.6K | 59.8K | — | 39.8K |
| Verhalen Andrew WDirector · 1 transaction | +3.4% | 96.9Kas of Sep 2023 | 3.2K | — | — |
| White Brian CCFO · 2 transactions | -8.2% | 74.1Kas of Dec 2023 | — | — | 6.6K |
| Chen Yun-LungVP, Business Development and · 11 transactions | +24.2% | 66.5K | 37.3K | — | 24.3K |
| Richardson David JeffreyDirector · 12 transactions | — | 56.6K | 17.1K | — | 8.1K |
| Paisley Christopher BDirector · 10 transactions | +11.8% | 41.0K | 9.1K | — | 4.8K |
| Hon Hsiao-WuenDirector · 4 transactions | +39.5% | 30.8K | 9.1K | — | 377 |
| Hu ChenmingDirector · 3 transactions | +44.5% | 29.5K | 9.1K | — | — |
| Day ChristopherVP, Marketing · 19 transactions | -8.7% | 15.1Kas of Jun 2025 | 10.0K | — | 12.3K |
| De Greef-Safft AnneDirector · 2 transactions | +157.7% | 10.8Kas of Aug 2024 | 6.6K | — | — |
| Schwarting Elizabeth MDirector · 13 transactions | +40.3% | 6.7K | 9.1K | — | 6.7K |
| Breithaupt Chantelle YvetteDirector · 1 transaction | — | 4.9K | 2.5K | — | — |
| Bryant Gregory MDirector · 1 transaction | — | 2.5K | 2.5K | — | — |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over the last 3 years: -434.9K shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.