Time on boards
- Boards served
- 2
- Current seats
- 2
- Board service
- 7 years
- Director since
- 2023
7 years of board service in total across 2 boards, counting each seat separately. Longest: Ambarella Inc., 3 years.
Ambarella Inc.
Director
ACM Research Inc.
Director
Shareholder support
Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
-
Ambarella Inc. June 4, 202591.5%
-
ACM Research Inc. June 13, 202493.2%
-
ACM Research Inc. June 15, 202394.2%
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Sep 8, 2026 | Ambarella Inc. | Grant or award | +3,151 | — | — |
| Sep 2, 2025 | Ambarella Inc. | Grant or award | +2,498 | — | — |
| Mar 17, 2025 | ACM Research Inc. | Open-market sale | −163,308 | $30.00 | $4,899,240 |
| Aug 29, 2024 | Ambarella Inc. | Grant or award | +3,374 | — | — |
| Aug 31, 2023 | Ambarella Inc. | Grant or award | +3,218 | — | — |
| Jun 15, 2023 | Ambarella Inc. | Grant or award | +1,559 | — | — |
| Mar 15, 2023 | Ambarella Inc. | Option exercise | +779 | — | — |
Questions about Chenming Hu
What boards is Chenming Hu on?
Chenming Hu sits on the boards of ACM Research Inc. and Ambarella Inc.
How long has Chenming Hu served on boards?
Our records show at least 7 years of board service across 2 boards, the earliest from 2023.
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