Ambarella (AMBA) insider trading
13 directors and officers declare holding shares of Ambarella (AMBA), each in their own filing with the SEC. The largest is Leslie Kohn (Chief Technology Officer · Director) with 977,428 shares, 2.2% of the company, worth $65.9M at the last close. The most recent move on file: Christopher B. Paisley sold 250 shares at $70.76 on Sep 25, 2026. Of the 13 with a trade on file, 6 last bought and 7 last sold. Purchases and sales are as reported on Forms 3, 4 and 5 — the SEC counts private transactions too, and many large sales follow a plan arranged in advance. Holdings are never added up: two spouses often report the same shares, and a joint filing carries a fund's.
| Insider | Role | Shares | % of company | Value | Last trade on file | Filed |
|---|---|---|---|---|---|---|
| Leslie Kohn | Chief Technology Officer · Director | 977,428 | 2.2% | $65.9M | sold 2,249 shares at $79.43 on Sep 17, 2025 | Sep 17, 2025 |
| Feng-Ming Wang | CEO · Director | 767,759 | 1.7% | $51.7M | sold 6,086 shares at $64.83 on Sep 17, 2026 | Sep 17, 2026 |
| Chi-Hong Ju | Senior VP, Systems & GM | 162,153 | 0.37% | $10.9M | sold 2,009 shares at $64.83 on Sep 17, 2026 | Sep 17, 2026 |
| Chan W. Lee | Chief Operations Officer | 154,443 | 0.35% | $10.4M | sold 2,893 shares at $64.83 on Sep 17, 2026 | Sep 17, 2026 |
| John Alexander Young | CFO | 107,806 | 0.24% | $7.3M | sold 1,896 shares at $67.28 on Sep 18, 2026 | Sep 18, 2026 |
| Yun-Lung Chen | VP, Business Dev. & Marketing | 60,557 | 0.14% | $4.1M | sold 5,958 shares at $78.66 on Jul 9, 2026 | Jul 9, 2026 |
| Christopher B. Paisley | Director | 43,930 | 0.10% | $3.0M | sold 250 shares at $70.76 on Sep 25, 2026 | Sep 25, 2026 |
| Hsiao-Wuen Hon | Director | 33,927 | 0.08% | $2.3M | bought 3,151 shares on Sep 8, 2026 | Sep 8, 2026 |
| Chenming Hu | Director | 32,667 | 0.07% | $2.2M | bought 3,151 shares on Sep 8, 2026 | Sep 8, 2026 |
| David Jeffrey Richardson | Director | 31,461 | 0.07% | $2.1M | bought 3,151 shares on Sep 8, 2026 | Sep 8, 2026 |
| Elizabeth M. Schwarting | Director | 9,841 | 0.02% | $663,234.20 | bought 3,151 shares on Sep 8, 2026 | Sep 8, 2026 |
| Chantelle Yvette Breithaupt | Director | 8,091 | 0.02% | $545,292.95 | bought 3,151 shares on Sep 8, 2026 | Sep 8, 2026 |
| Gregory M. Bryant | Director | 5,608 | 0.01% | $377,951.16 | bought 3,151 shares on Sep 8, 2026 | Sep 8, 2026 |
Each insider at Ambarella
- Leslie Kohn — Chief Technology Officer · Director
- Feng-Ming Wang — CEO · Director
- Chi-Hong Ju — Senior VP, Systems & GM
- Chan W. Lee — Chief Operations Officer
- John Alexander Young — CFO
- Yun-Lung Chen — VP, Business Dev. & Marketing
- Christopher B. Paisley — Director
- Hsiao-Wuen Hon — Director
- Chenming Hu — Director
- David Jeffrey Richardson — Director
- Elizabeth M. Schwarting — Director
- Chantelle Yvette Breithaupt — Director
No longer filing
- Christopher Day — VP, Marketing
- Anne De Greef-Safft — Director
What insiders bought and sold across AI stocks · All filings on sec.gov