Robert S. Wiesenthal
Chief Executive Officer at Strata Critical Medical Inc.
Sits on 2 boards. Last updated September 27, 2026
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: Strata Critical Medical Inc., 3 years.
Chief executive roles
Shareholder support
Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
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TripAdvisor Inc. June 18, 202593.9%
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TripAdvisor Inc. June 11, 202468.1%
-
Strata Critical Medical Inc. May 7, 202483.1%
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TripAdvisor Inc. June 6, 202353.8%
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 |
|---|---|---|---|---|---|
| Jul 30, 2026 | Strata Critical Medical Inc. | Grant or award | +50,234 | — | — |
| Jun 29, 2026 | TripAdvisor Inc. | Grant or award | +17,818 | — | — |
| Aug 29, 2025 | Strata Critical Medical Inc. | Grant or award | +40,607 | — | — |
| Aug 6, 2025 | Strata Critical Medical Inc. | Option exercise | +282,470 | $0.18 | $50,845 |
| Aug 1, 2025 | Strata Critical Medical Inc. | Grant or award | +246,429 | — | — |
| Aug 1, 2025 | Strata Critical Medical Inc. | Shares withheld for tax | −136,263 | $3.99 | $543,689 |
| Jun 18, 2025 | TripAdvisor Inc. | Grant or award | +19,171 | — | — |
| Jun 10, 2025 | Strata Critical Medical Inc. | Shares withheld for tax | −91,031 | $3.80 | $345,918 |
| Mar 27, 2025 | Strata Critical Medical Inc. | Option exercise | +1,237,611 | $0.18 | $222,770 |
| Mar 27, 2025 | Strata Critical Medical Inc. | Shares withheld for tax | −717,815 | $2.98 | $2,139,089 |
| Mar 13, 2025 | Strata Critical Medical Inc. | Grant or award | +394,286 | — | — |
| Mar 13, 2025 | Strata Critical Medical Inc. | Shares withheld for tax | −218,479 | $3.12 | $681,654 |
| Mar 13, 2025 | Strata Critical Medical Inc. | Shares withheld for tax | −91,213 | $3.12 | $284,585 |
| Dec 19, 2024 | Strata Critical Medical Inc. | Option exercise | +1,237,612 | $0.18 | $222,770 |
| Dec 19, 2024 | Strata Critical Medical Inc. | Shares withheld for tax | −709,933 | $3.90 | $2,768,739 |
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