Michael Thomas Heffernan
Sits on 5 boards. Overboarded · 5 public boards Last updated September 28, 2026
Time on boards
- Boards served
- 5
- Current seats
- 5
- Board service
- 13 years
- Director since
- 2023
13 years of board service in total across 5 boards, counting each seat separately. Longest: Biohaven Ltd., 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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enGene Therapeutics Inc. June 9, 2026100.0%
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Avalo Therapeutics Inc. June 2, 2026100.0%
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Avalo Therapeutics Inc. June 17, 202599.9%
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Collegium Pharmaceutical Inc. May 16, 202491.1%
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Trevi Therapeutics Inc. June 28, 202399.6%
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Collegium Pharmaceutical Inc. May 18, 202394.1%
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 15, 2026 | Trevi Therapeutics Inc. | Option exercise | +18,421 | $3.04 | $56,000 |
| Sep 15, 2026 | Trevi Therapeutics Inc. | Open-market sale | −18,321 | $15.09 | $276,464 |
| Sep 15, 2026 | Trevi Therapeutics Inc. | Open-market sale | −100 | $15.88 | $1,588 |
| Sep 15, 2026 | Trevi Therapeutics Inc. | Option exercise | +21,052 | $3.33 | $70,103 |
| Sep 15, 2026 | Trevi Therapeutics Inc. | Open-market sale | −20,952 | $15.09 | $316,166 |
| Sep 15, 2026 | Trevi Therapeutics Inc. | Open-market sale | −100 | $15.88 | $1,588 |
| Feb 10, 2025 | Collegium Pharmaceutical Inc. | Grant or award | +4,820 | — | — |
| May 16, 2024 | Collegium Pharmaceutical Inc. | Grant or award | +7,693 | — | — |
| May 18, 2023 | Collegium Pharmaceutical Inc. | Grant or award | +9,792 | — | — |
Questions about Michael Thomas Heffernan
What boards is Michael Thomas Heffernan on?
Michael Thomas Heffernan sits on the boards of Avalo Therapeutics Inc., Biohaven Ltd., Collegium Pharmaceutical Inc., Trevi Therapeutics Inc. and enGene Therapeutics Inc.
How long has Michael Thomas Heffernan served on boards?
Our records show at least 13 years of board service across 5 boards, the earliest from 2023.
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