AMBARELLA INC (AMBA) has 15 SEC Form 4 insider filings on record in the last 90 days. No insider purchases were filed — 8 sales totalling $3.8M. Most recent filing: Sept. 18, 2026.
| Date | Insider | Value | Shares | Stake | Pre-planned | Links |
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| Sept. 18, 2026 filed Sept. 17, 2026 | Wang Feng-Ming CEO | −$394,555 | 6,086 | −1% | No | |
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| Sept. 18, 2026 filed Sept. 17, 2026 | Lee Chan W Chief Operations Officer | −$187,553 | 2,893 | −2% | No | |
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| Sept. 18, 2026 filed Sept. 17, 2026 | Ju Chi-Hong Senior VP, Systems & GM | −$130,243 | 2,009 | −1% | No | |
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| Sept. 18, 2026 filed Sept. 17, 2026 | Young John Alexander CFO | −$202,659 | 3,126 | −3% | No | |
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| Sept. 10, 2026 filed Sept. 8, 2026 | Hu Chenming Director | $0 | 3,151 | +11% | No | |
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Showing the 5 most recent of 15 filings in the last 90 days.
Form 4 is the filing company officers, directors and 10% shareholders must submit to the SEC within two business days of trading their own company's stock. Open-market purchases generally carry more signal than sales, which are often scheduled in advance. More on how this works.
Real-time Telegram alerts the moment a Form 4 is filed. Filings shown here are delayed by 72 hours.
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