CIK 0001280263 · Large accelerated filer
AMBARELLA INC
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- AMBA
- Exchange
- Nasdaq
- Industry
- Semiconductors & Related Devices
- FY end
- Jan 31
- Entity type
- operating
- EIN
- 980459628
- Phone
- 408-734-8888
- Business address
- 3001 TASMAN DRIVE, SANTA CLARA, CA, 95054
- Open-market buys, last 90 days
- $0
- in 0 filings
- Open-market sales, last 90 days
- $1,060,264
- in 6 filings, $145K under 10b5-1 plans
Net −$1,060,264. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Who's trading
90 days
Reading 100 more Form 4s from the SEC; this list fills in as they're read.
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-03-02 | Ju Chi-Hong Senior VP, Systems & GM, Asia | Grant or award | +17,329 | 159,188 | ||
| 2026-03-02 | Ju Chi-Hong Senior VP, Systems & GM, Asia | Grant or award · Performance Stock Units | +17,329 | 17,329 | ||
| 2026-03-02 | Wang Feng-Ming CEO | Option exercise 10b5-1 | +50,000 | $41.36 | $2.1M | 818,979 |
| 2026-03-02 | Wang Feng-Ming CEO | Sale 10b5-1 | −1,000 | $56.83 | $57K | 817,979 |
| 2026-03-02 | Wang Feng-Ming CEO | Sale 10b5-1 | −1,900 | $58.77 | $112K | 816,079 |
| 2026-03-02 | Wang Feng-Ming CEO | Sale 10b5-1 | −2,600 | $59.53 | $155K | 813,479 |
| 2026-03-02 | Wang Feng-Ming CEO | Sale 10b5-1 | −32,460 | $60.91 | $2.0M | 781,019 |
| 2026-03-02 | Wang Feng-Ming CEO | Sale 10b5-1 | −12,040 | $61.42 | $740K | 768,979 |
| 2026-03-02 | Wang Feng-Ming CEO | Grant or award 10b5-1 | +53,203 | 822,182 | ||
| 2026-03-02 | Wang Feng-Ming CEO | Option exercise · Non-Qualified Stock Option (right to buy) 10b5-1 | −50,000 | 0 | ||
| 2026-03-02 | Wang Feng-Ming CEO | Grant or award · Performance Stock Units 10b5-1 | +53,203 | 53,203 | ||
| 2026-03-02 | Bryant Gregory M Director | Grant or award | +2,457 | 2,457 | ||
| 2026-01-05 | Ju Chi-Hong Senior VP, Systems & GM, Asia | Sale | −7,728 | $75.58 | $584K | 146,039 |
| 2025-12-30 | Ju Chi-Hong Senior VP, Systems & GM, Asia | Sale | −7,945 | $70.25 | $558K | 149,587 |
| 2025-12-30 | Ju Chi-Hong Senior VP, Systems & GM, Asia | Sale | −3,765 | $70.32 | $265K | 153,767 |
| 2025-12-26 | PAISLEY CHRISTOPHER B Director | Sale | −500 | $72.18 | $36K | 41,279 |
| 2025-12-19 | Wang Feng-Ming CEO | Gift | −15,000 | 768,979 | ||
| 2025-12-18 | Young John Alexander CFO | Sale | −3,791 | $72.96 | $277K | 102,738 |
| 2025-12-17 | Young John Alexander CFO | Sale | −2,579 | $71.82 | $185K | 106,529 |
| 2025-12-17 | Lee Chan W Chief Operations Officer | Sale | −2,406 | $71.82 | $173K | 124,566 |
Page 4 of 30 · 591 trades