Company profile
Ambarella Inc Insider Trading
AMBAEvery SEC Form 4 insider trading filing for Ambarella Inc (AMBA) since April 2023: open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?
- Exchange
- Nasdaq
- Sector
- Semiconductors & Related Devices
- CIK
- 0001280263
- Filings
- 204
- Insiders
- 17
- Last filing
- 2026-09-18
Activity summary
Recent insider activity is bullish. Over the last 30 days, 7 insiders purchased shares versus 4 sales. Buying was led by Hsiao-Wuen Hon.
Three year balance
Buy and sell value by quarter, Q4 23 to Q3 26. Ambarella Inc insiders were net sellers in every quarter shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $6.4M.
90 day insight
Over the last 90 days, Ambarella Inc insiders bought $0 (7 transactions) and sold $2.3M (6 transactions).
- Most active insider: Feng-Ming Wang with 2 transactions totaling $1.9M.
- Largest single sale: $1.5M by Feng-Ming Wang on Jul 1, 2026.
- 33% of recent sales were pre-scheduled 10b5-1 trades, typically less informative than open-market activity.
Activity is mixed: buys and sales are roughly balanced.
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 18, 2026 | John Alexander Young | AMBA | Sale10b5 | 1,896 | $67.28 | $128K |
| Sep 17, 2026 | Chi-Hong Ju | AMBA | Sale | 2,009 | $64.83 | $130K |
| Sep 17, 2026 | Chan W Lee | AMBA | Sale | 2,893 | $64.83 | $188K |
| Sep 17, 2026 | John Alexander Young | AMBA | Sale | 3,126 | $64.83 | $203K |
| Sep 17, 2026 | Feng-Ming Wang | AMBA | Sale | 6,086 | $64.83 | $395K |
45 more transactions hidden
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