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.
Sold 556.0K
Sold 556.0K
Granted 875.5K · Sold 1.23M
Granted 1.47M · Sold 1.85M
Granted 154.6K · Sold 118.3K
Granted 234.0K · Sold 98.1K
Granted 59.8K · Sold 39.8K
Granted 43.9K · Bought 11.5K · Sold 82.5K
Granted 463.7K · Sold 348.5K
Granted 95.8K · Sold 21.7K
Granted 150.3K · Sold 78.4K
Granted 223.6K · Sold 172.2K
Granted 62.8K · Sold 34.5K
Granted 137.7K · Sold 461.6K
Granted 82.0K · Sold 41.0K
Granted 31.2K · Sold 377
Granted 82.0K · Sold 52.5K
Granted 334.7K · Sold 316.3K
Granted 11.7K
Granted 10.8K
Granted 26.9K · Sold 66.5K
Granted 18.5K · Sold 11.3K
Granted 13.3K · Sold 6.7K
Granted 2.5K
Granted 2.5K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Matrix Partners VII LP Et AlFormer 10% Owner · 2 transactions | — | 4.58Mas of May 2013 | — | — | — |
| Benchmark Capital Management Co IV LLC +9 co-filers10% owner · 10 transactions | — | 4.01Mas of Apr 2013 | — | — | — |
| Balkanski Alexandre +9 co-filers10% owner · 4 transactions | — | 3.71Mas of Oct 2012 | — | — | 556.0K |
| Dunlevie Bruce10% owner · 4 transactions | — | 2.78Mas of Oct 2012 | — | — | 556.0K |
| Pacven Walden Ventures V Associates Fund LP +5 co-filersFormer 10% holder · 13 transactions | — | 2.29Mas of Jun 2013 | — | — | — |
| Kohn LeslieChief Technology Officer, Director · 197 transactions | — | 977.4K | 875.5K | — | 1.23M |
| Wang Feng-MingCEO, Director · 236 transactions | — | 789.9K | 1.47M | — | 1.85M |
| 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 · 67 transactions | — | 96.9Kas of Sep 2023 | 43.9K | 11.5K | 82.5K |
| Laplante GeorgeExecutive Vice President · 70 transactions | — | 96.0Kas of Sep 2018 | 463.7K | — | 348.5K |
| White Brian CCFO · 8 transactions | — | 74.1Kas of Dec 2023 | 95.8K | — | 21.7K |
| Eichler Kevin CCFO · 35 transactions | — | 73.3Kas of Mar 2022 | 150.3K | — | 78.4K |
| Chen Yun-LungVP, Business Development and · 78 transactions | — | 66.5K | 223.6K | — | 172.2K |
| Richardson David JeffreyDirector · 55 transactions | — | 56.6K | 62.8K | — | 34.5K |
| LeGall DidierExecutive Vice President · 58 transactions | — | 53.4Kas of Dec 2014 | 137.7K | — | 461.6K |
| Paisley Christopher BDirector · 126 transactions | — | 41.0K | 82.0K | — | 41.0K |
| Hon Hsiao-WuenDirector · 27 transactions | — | 30.8K | 31.2K | — | 377 |
| Hu ChenmingDirector · 56 transactions | — | 29.5K | 82.0K | — | 52.5K |
| Day ChristopherVP, Marketing · 237 transactions | — | 15.1Kas of Jun 2025 | 334.7K | — | 316.3K |
| Chen Yen-LungVP of Business Development · 5 transactions | — | 12.9Kas of Dec 2014 | 11.7K | — | — |
| De Greef-Safft AnneDirector · 8 transactions | — | 10.8Kas of Aug 2024 | 10.8K | — | — |
| Tan Lip BuDirector · 59 transactions | — | 8.6Kas of Mar 2017 | 26.9K | — | 66.5K |
| Schwarting Elizabeth MDirector · 34 transactions | — | 6.7K | 18.5K | — | 11.3K |
| Meng Teresa HDirector · 24 transactions | — | 6.6Kas of Mar 2022 | 13.3K | — | 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 all recorded history: -6.12M shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.