| Type | Value |
|---|---|
| cik | 0001280263 |
| ticker | AMBA |
Discretionary BUY minus SELL in USD over rolling windows. Excludes compensation flow.
Rolling 14-day windows where ≥3 distinct insiders reported a transaction in the same direction.
| Date | Direction | Insiders | Strength | Tx | USD |
|---|---|---|---|---|---|
| 30 Dec 2025 | sell | 6 | strong | 9 | $2.0M |
| 26 Dec 2025 | sell | 6 | strong | 7 | $1.2M |
| 18 Dec 2025 | sell | 5 | strong | 6 | $1.1M |
| 17 Dec 2025 | sell | 5 | strong | 5 | $855.1K |
| 17 Sept 2025 | sell | 6 | strong | 6 | $1.7M |
| 25 Jun 2025 | sell | 7 | strong | 7 | $683.3K |
| 17 Jun 2025 | sell | 6 | strong | 6 | $620.7K |
| Date | Type | Insider | Qty | Price | Signals |
|---|---|---|---|---|---|
| 26 May 2026 | SALE | Wang Feng-Ming | 17,285 | 90.38 USD | 10b5-1 |
| 26 May 2026 | SALE | Wang Feng-Ming | 6,065 | 91.23 USD | 10b5-1 |
| 26 May 2026 | SALE | Wang Feng-Ming | 9,150 | 92.05 USD | 10b5-1 |
| 26 May 2026 | EXERCISE | Young John Alexander | 400 | 55.80 USD | 10b5-1 |
| 26 May 2026 | SALE | Young John Alexander | 400 | 96.00 USD | 10b5-1 |
| 26 May 2026 | EXERCISE | Young John Alexander | 400 | 0.00 USD | 10b5-1deriv |
| 21 Apr 2026 | SALE | Young John Alexander | 1,971 | 60.00 USD | |
| 17 Mar 2026 | EXERCISE | Ju Chi-Hong | 9,553 | — | |
| 17 Mar 2026 | SALE | Ju Chi-Hong | 4,729 | 52.77 USD | |
| 18 Mar 2026 | GRANT_AWARD | Ju Chi-Hong | 5,930 | 0.00 USD | |
| 19 Mar 2026 | SALE | Ju Chi-Hong | 2,155 | 54.14 USD | |
| 17 Mar 2026 | EXERCISE | Ju Chi-Hong | 9,553 | 0.00 USD | deriv |
| 17 Mar 2026 | EXERCISE | Wang Feng-Ming | 27,598 | — | |
| 17 Mar 2026 | SALE | Wang Feng-Ming | 18,976 | 52.77 USD | |
| 18 Mar 2026 | GRANT_AWARD | Wang Feng-Ming | 15,686 | 0.00 USD | |
| 19 Mar 2026 | SALE | Wang Feng-Ming | 8,083 | 54.14 USD | |
| 17 Mar 2026 | EXERCISE | Wang Feng-Ming | 27,598 | 0.00 USD | deriv |
| 18 Mar 2026 | GRANT_AWARD | Chen Yun-Lung | 2,849 | 0.00 USD | |
| 17 Mar 2026 | EXERCISE | Chen Yun-Lung | 4,651 | — | |
| 17 Mar 2026 | EXERCISE | Chen Yun-Lung | 4,651 | 0.00 USD | deriv |
| 17 Mar 2026 | EXERCISE | Lee Chan W | 13,678 | — | |
| 17 Mar 2026 | SALE | Lee Chan W | 6,729 | 52.77 USD | |
| 18 Mar 2026 | GRANT_AWARD | Lee Chan W | 7,320 | 0.00 USD | |
| 19 Mar 2026 | SALE | Lee Chan W | 3,641 | 54.14 USD | |
| 17 Mar 2026 | EXERCISE | Lee Chan W | 13,678 | 0.00 USD | deriv |