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: PTC 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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Soligenix Inc. September 17, 202690.6%
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NexGel Inc July 31, 202694.4%
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PTC Therapeutics Inc. June 2, 202696.1%
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Soligenix Inc. June 20, 202590.3%
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NexGel Inc June 17, 202594.1%
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NexGel Inc June 17, 202496.5%
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Soligenix Inc. May 30, 202484.8%
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Soligenix Inc. December 15, 202361.4%
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NexGel Inc June 6, 202396.4%
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PTC Therapeutics Inc. June 6, 202387.4%
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 |
|---|---|---|---|---|---|
| Jan 2, 2026 | PTC Therapeutics Inc. | Grant or award | +4,000 | — | — |
| Jan 3, 2025 | PTC Therapeutics Inc. | Grant or award | +4,000 | — | — |
| Dec 2, 2024 | PTC Therapeutics Inc. | Option exercise | +12,000 | $51.00 | $612,000 |
| Dec 2, 2024 | PTC Therapeutics Inc. | Open-market sale | −8,813 | $51.44 | $453,341 |
| Dec 2, 2024 | PTC Therapeutics Inc. | Open-market sale | −3,187 | $52.42 | $167,063 |
| Dec 2, 2024 | PTC Therapeutics Inc. | Option exercise | +12,000 | $30.86 | $370,320 |
| Dec 2, 2024 | PTC Therapeutics Inc. | Open-market sale | −5,699 | $50.52 | $287,913 |
| Dec 2, 2024 | PTC Therapeutics Inc. | Open-market sale | −2,634 | $51.43 | $135,467 |
| Dec 2, 2024 | PTC Therapeutics Inc. | Open-market sale | −3,667 | $52.39 | $192,114 |
| Nov 20, 2024 | NexGel Inc | Open-market purchase | +3,636 | $2.75 | $9,999 |
| Aug 23, 2024 | NexGel Inc | Open-market purchase | +10,000 | $2.50 | $25,000 |
| May 22, 2024 | PTC Therapeutics Inc. | Option exercise | +20,000 | $26.42 | $528,400 |
| May 22, 2024 | PTC Therapeutics Inc. | Open-market sale | −20,000 | $38.24 | $764,800 |
| Feb 15, 2024 | PTC Therapeutics Inc. | Grant or award | +4,000 | — | — |
| May 26, 2023 | NexGel Inc | Open-market purchase | +5,000 | $2.34 | $11,700 |
Questions about Jerome B. Zeldis
What boards is Jerome B. Zeldis on?
Jerome B. Zeldis sits on the boards of NexGel Inc, PTC Therapeutics Inc. and Soligenix Inc.
How long has Jerome B. Zeldis served on boards?
Our records show at least 10 years of board service across 3 boards, the earliest from 2023.
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