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 217.9K · Sold 92.4K
Granted 512.7K · Sold 285.0K
Granted 154.6K · Sold 118.3K
Granted 234.0K · Sold 98.1K
Granted 59.8K · Sold 39.8K
Granted 14.4K · Bought 11.5K
Granted 95.8K · Sold 21.7K
Granted 57.8K · Sold 37.9K
Granted 87.9K · Sold 72.5K
Granted 30.8K · Sold 16.1K
Granted 19.5K · Sold 8.0K
Granted 14.7K · Sold 377
Granted 20.2K · Sold 11.7K
Granted 52.8K · Sold 49.6K
Granted 10.8K
Granted 14.7K · Sold 9.7K
Granted 1.7K · Sold 959
Granted 2.5K
Granted 2.5K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Kohn LeslieChief Technology Officer, Director · 35 transactions | +12% | 977.4K | 217.9K | — | 92.4K |
| Wang Feng-MingCEO, Director · 58 transactions | +21.5% | 789.9K | 512.7K | — | 285.0K |
| Ju Chi-HongSenior VP, Systems & GM · 63 transactions | — | 173.9K | 154.6K | — | 118.3K |
| Lee Chan WChief Operations Officer · 50 transactions | — | 157.1K | 234.0K | — | 98.1K |
| Young John AlexanderCFO · 25 transactions | — | 112.6K | 59.8K | — | 39.8K |
| Verhalen Andrew WDirector · 11 transactions | — | 96.9Kas of Sep 2023 | 14.4K | 11.5K | — |
| White Brian CCFO · 8 transactions | — | 74.1Kas of Dec 2023 | 95.8K | — | 21.7K |
| Eichler Kevin CCFO · 13 transactions | +37.3% | 73.3Kas of Mar 2022 | 57.8K | — | 37.9K |
| Chen Yun-LungVP, Business Development and · 28 transactions | +29.9% | 66.5K | 87.9K | — | 72.5K |
| Richardson David JeffreyDirector · 23 transactions | — | 56.6K | 30.8K | — | 16.1K |
| Paisley Christopher BDirector · 30 transactions | +38.8% | 41.0K | 19.5K | — | 8.0K |
| Hon Hsiao-WuenDirector · 12 transactions | +86.8% | 30.8K | 14.7K | — | 377 |
| Hu ChenmingDirector · 15 transactions | +40.9% | 29.5K | 20.2K | — | 11.7K |
| Day ChristopherVP, Marketing · 51 transactions | +43.8% | 15.1Kas of Jun 2025 | 52.8K | — | 49.6K |
| De Greef-Safft AnneDirector · 8 transactions | — | 10.8Kas of Aug 2024 | 10.8K | — | — |
| Schwarting Elizabeth MDirector · 28 transactions | +214.2% | 6.7K | 14.7K | — | 9.7K |
| Meng Teresa HDirector · 4 transactions | +12.9% | 6.6Kas of Mar 2022 | 1.7K | — | 959 |
| 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 5 years: -850.7K shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.