Time on boards
- Boards served
- 3
- Current seats
- 3
- Board service
- 11 years
- Director since
- 2023
11 years of board service in total across 3 boards, counting each seat separately. Longest: Sarepta Therapeutics Inc., 3 years.
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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Merck & Company Inc. May 26, 202699.7%
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Sarepta Therapeutics Inc. June 5, 202598.6%
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Merck & Company Inc. May 27, 202599.7%
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Allogene Therapeutics Inc. June 5, 202494.2%
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Sarepta Therapeutics Inc. June 8, 202394.0%
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Merck & Company Inc. May 23, 202399.4%
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 |
|---|---|---|---|---|---|
| Jun 4, 2026 | Sarepta Therapeutics Inc. | Grant or award | +16,875 | — | — |
| Mar 12, 2026 | Sarepta Therapeutics Inc. | Open-market sale | −7,239 | $17.02 | $123,208 |
| Mar 10, 2025 | Sarepta Therapeutics Inc. | Grant or award | +2,383 | — | — |
| Mar 5, 2024 | Sarepta Therapeutics Inc. | Open-market sale | −3,135 | $122.96 | $385,480 |
| Mar 1, 2024 | Sarepta Therapeutics Inc. | Grant or award | +1,846 | — | — |
| Aug 7, 2023 | Allogene Therapeutics Inc. | Open-market sale | −10,000 | $4.29 | $42,900 |
| Mar 6, 2023 | Sarepta Therapeutics Inc. | Grant or award | +1,523 | — | — |
Questions about Stephen Mayo
What boards is Stephen Mayo on?
Stephen Mayo sits on the boards of Allogene Therapeutics Inc., Merck & Company Inc. and Sarepta Therapeutics Inc.
How long has Stephen Mayo served on boards?
Our records show at least 11 years of board service across 3 boards, the earliest from 2023.
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