Time on boards
- Boards served
- 3
- Current seats
- 3
- Board service
- 10 years
- Director since
- 2023
10 years of board service in total across 3 boards, counting each seat separately. Longest: OPKO Health 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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OPKO Health Inc. June 18, 202690.6%
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SIGA Technologies Inc. June 9, 202691.5%
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Candel Therapeutics Inc. June 17, 202572.8%
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SIGA Technologies Inc. June 10, 202597.8%
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OPKO Health Inc. April 23, 202596.2%
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SIGA Technologies Inc. June 11, 202496.4%
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OPKO Health Inc. March 28, 202494.1%
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OPKO Health Inc. June 22, 202382.1%
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SIGA Technologies Inc. June 13, 202395.0%
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 9, 2026 | SIGA Technologies Inc. | Option exercise | +24,116 | — | — |
| Jun 9, 2026 | SIGA Technologies Inc. | Sold back to the company | −7,235 | $4.39 | $31,762 |
| Jun 25, 2025 | Candel Therapeutics Inc. | Grant or award | +5,353 | $4.67 | $24,999 |
| Jun 10, 2025 | SIGA Technologies Inc. | Option exercise | +19,084 | — | — |
| Jun 10, 2025 | SIGA Technologies Inc. | Sold back to the company | −5,725 | $6.22 | $35,610 |
| Jul 24, 2024 | OPKO Health Inc. | Grant or award | +437,500 | — | — |
| Jun 11, 2024 | SIGA Technologies Inc. | Option exercise | +24,712 | — | — |
| Jun 11, 2024 | SIGA Technologies Inc. | Sold back to the company | −7,414 | $7.86 | $58,274 |
| Jan 8, 2024 | OPKO Health Inc. | Open-market purchase | +108,695 | $0.93 | $101,086 |
| Jan 8, 2024 | OPKO Health Inc. | Open-market purchase | +500 | $0.92 | $460 |
| Jan 8, 2024 | OPKO Health Inc. | Open-market purchase | +106,989 | $0.93 | $99,500 |
| Jun 13, 2023 | SIGA Technologies Inc. | Option exercise | +14,620 | — | — |
| Jun 13, 2023 | SIGA Technologies Inc. | Sold back to the company | −4,386 | $6.07 | $26,623 |
| May 5, 2023 | OPKO Health Inc. | Open-market purchase | +19,285 | $1.78 | $34,327 |
| May 5, 2023 | OPKO Health Inc. | Open-market purchase | +3,185 | $1.79 | $5,701 |
Questions about Gary J. Nabel
What boards is Gary J. Nabel on?
Gary J. Nabel sits on the boards of Candel Therapeutics Inc., OPKO Health Inc. and SIGA Technologies Inc.
How long has Gary J. Nabel served on boards?
Our records show at least 10 years of board service across 3 boards, the earliest from 2023.
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