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: Hyliion Holdings Corp., 3 years.
Shareholder support
Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
-
Hyliion Holdings Corp. May 19, 202694.4%
-
Amprius Technologies Inc. June 6, 202499.8%
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Hyliion Holdings Corp. May 23, 202393.9%
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 |
|---|---|---|---|---|---|
| Feb 11, 2026 | Hyliion Holdings Corp. | Grant or award | +60,976 | $2.05 | $125,001 |
| Feb 18, 2025 | Hyliion Holdings Corp. | Grant or award | +59,809 | — | — |
| Jun 7, 2024 | Amprius Technologies Inc. | Grant or award | +114,583 | — | — |
| Feb 13, 2024 | Hyliion Holdings Corp. | Grant or award | +78,125 | — | — |
| Jun 14, 2023 | Amprius Technologies Inc. | Grant or award | +31,813 | — | — |
| Mar 14, 2023 | Hyliion Holdings Corp. | Grant or award | +25,000 | — | — |
Questions about Mary Gustanski
What boards is Mary Gustanski on?
Mary Gustanski sits on the boards of Amprius Technologies Inc. and Hyliion Holdings Corp.
How long has Mary Gustanski served on boards?
Our records show at least 7 years of board service across 2 boards, the earliest from 2023.
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