SEC Form 4 · Updated Daily
AMBA
— AMBARELLA, INC. OwnershipInsider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| Kohn Leslie | Director · Officer | 977,428 | 2025-09-17 | S |
| Wang Feng-Ming | Director · Officer | 773,607 | 2026-07-01 | S |
| Lee Chan W | Officer | 157,098 | 2026-06-17 | S |
| Ju Chi-Hong | Officer | 155,924 | 2026-07-01 | S |
| Young John Alexander | Officer | 112,590 | 2026-06-17 | S |
| Chen Yun-Lung | Officer | 60,557 | 2026-07-09 | S |
| PAISLEY CHRISTOPHER B | Director | 44,180 | 2026-09-08 | A |
| Hon Hsiao-Wuen | Director | 33,927 | 2026-09-08 | A |
| Hu Chenming | Director | 32,667 | 2026-09-08 | A |
| Schwarting Elizabeth M | Director | 9,841 | 2026-09-08 | A |
| Breithaupt Chantelle Yvette | Director | 8,091 | 2026-09-08 | A |
| RICHARDSON DAVID JEFFREY | Director | 5,649 | 2026-09-08 | A |
| Bryant Gregory M | Director | 5,608 | 2026-09-08 | A |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2026-09-08 | PAISLEY CHRISTOPHER B | Grant / award | 3,151 | $0.00 | 44,180 |
| 2026-09-08 | RICHARDSON DAVID JEFFREY | Grant / award | 3,151 | $0.00 | 5,649 |
| 2026-09-08 | Hon Hsiao-Wuen | Grant / award | 3,151 | $0.00 | 33,927 |
| 2026-09-08 | Schwarting Elizabeth M | Grant / award | 3,151 | $0.00 | 9,841 |
| 2026-09-08 | Breithaupt Chantelle Yvette | Grant / award | 3,151 | $0.00 | 8,091 |
| 2026-09-08 | Bryant Gregory M | Grant / award | 3,151 | $0.00 | 5,608 |
| 2026-09-08 | Hu Chenming | Grant / award | 3,151 | $0.00 | 32,667 |
| 2026-07-09 | Chen Yun-Lung | Open-market sale | 5,958 | $78.66 | 60,557 |
| 2026-07-01 | Wang Feng-Ming | Open-market sale | 16,250 | $90.08 | 773,607 |
| 2026-07-01 | Ju Chi-Hong | Open-market sale | 10,000 | $88.84 | 155,924 |
| 2026-06-26 | PAISLEY CHRISTOPHER B | Open-market sale | 250 | $62.01 | 41,029 |
| 2026-06-17 | Wang Feng-Ming | Gift | 10,000 | $0.00 | 789,857 |
| 2026-06-17 | Wang Feng-Ming | Open-market sale | 6,204 | $67.87 | 799,857 |
| 2026-06-17 | Ju Chi-Hong | Open-market sale | 2,017 | $67.87 | 165,924 |
| 2026-06-17 | Lee Chan W | Open-market sale | 2,951 | $67.87 | 157,098 |
| 2026-06-17 | Young John Alexander | Open-market sale | 1,847 | $66.98 | 112,590 |
| 2026-06-17 | Young John Alexander | Open-market sale | 3,186 | $67.87 | 114,437 |
| 2026-06-12 | Chen Yun-Lung | Open-market sale | 9,856 | $67.06 | 66,515 |
| 2026-05-26 | Wang Feng-Ming | Open-market sale | 9,150 | $92.05 | 806,061 |
| 2026-05-26 | Wang Feng-Ming | Open-market sale | 6,065 | $91.23 | 815,211 |
| 2026-05-26 | Wang Feng-Ming | Open-market sale | 17,285 | $90.38 | 821,276 |
| 2026-05-26 | Young John Alexander | Option exercise (derivative) | 400 | $0.00 | 24,600 |
| 2026-05-26 | Young John Alexander | Open-market sale | 400 | $96.00 | 117,623 |
| 2026-05-26 | Young John Alexander | Option exercise | 400 | $55.80 | 118,023 |
| 2026-04-21 | Young John Alexander | Open-market sale | 1,971 | $60.00 | 117,623 |
| 2026-03-19 | Wang Feng-Ming | Open-market sale | 8,083 | $54.14 | 838,561 |
| 2026-03-19 | Ju Chi-Hong | Open-market sale | 2,155 | $54.14 | 167,941 |
| 2026-03-19 | Lee Chan W | Open-market sale | 3,641 | $54.14 | 160,049 |
| 2026-03-19 | Young John Alexander | Open-market sale | 3,038 | $54.14 | 119,594 |
| 2026-03-18 | Wang Feng-Ming | Grant / award | 15,686 | $0.00 | 846,644 |
| 2026-03-18 | Ju Chi-Hong | Grant / award | 5,930 | $0.00 | 170,096 |
| 2026-03-18 | Lee Chan W | Grant / award | 7,320 | $0.00 | 163,690 |
| 2026-03-18 | Chen Yun-Lung | Grant / award | 2,849 | $0.00 | 76,371 |
| 2026-03-18 | Young John Alexander | Grant / award | 5,560 | $0.00 | 122,632 |
| 2026-03-17 | Wang Feng-Ming | Option exercise (derivative) | 27,598 | $0.00 | 0 |
| 2026-03-17 | Wang Feng-Ming | Open-market sale | 18,976 | $52.77 | 830,958 |
| 2026-03-17 | Wang Feng-Ming | Option exercise | 27,598 | — | 849,934 |
| 2026-03-17 | Ju Chi-Hong | Option exercise (derivative) | 9,553 | $0.00 | 0 |
| 2026-03-17 | Ju Chi-Hong | Open-market sale | 4,729 | $52.77 | 164,166 |
| 2026-03-17 | Ju Chi-Hong | Option exercise | 9,553 | — | 168,895 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.