Time on boards
- Boards served
- 2
- Current seats
- 2
- Board service
- 6 years
- Director since
- 2023
6 years of board service in total across 2 boards, counting each seat separately. Longest: ClearPoint Neuro 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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ClearPoint Neuro Inc. May 20, 202698.3%
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ClearPoint Neuro Inc. May 23, 202599.2%
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ClearPoint Neuro Inc. May 16, 202497.2%
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ClearPoint Neuro Inc. May 25, 202399.3%
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 |
|---|---|---|---|---|---|
| Aug 4, 2026 | PTC Therapeutics Inc. | Open-market sale | −10,292 | $68.57 | $705,722 |
| May 21, 2026 | ClearPoint Neuro Inc. | Open-market sale | −16,000 | $11.59 | $185,440 |
| May 19, 2026 | ClearPoint Neuro Inc. | Option exercise | +12,417 | — | — |
| May 14, 2026 | PTC Therapeutics Inc. | Open-market sale | −679 | $73.06 | $49,608 |
| May 14, 2026 | PTC Therapeutics Inc. | Open-market sale | −7,221 | $73.08 | $527,711 |
| May 14, 2026 | PTC Therapeutics Inc. | Open-market sale | −2,100 | $73.08 | $153,468 |
| May 14, 2026 | PTC Therapeutics Inc. | Open-market sale | −2,572 | $72.46 | $186,367 |
| May 13, 2026 | PTC Therapeutics Inc. | Grant or award | +12,500 | — | — |
| Apr 21, 2026 | PTC Therapeutics Inc. | Open-market sale | −2,850 | $70.91 | $202,094 |
| Mar 12, 2026 | PTC Therapeutics Inc. | Open-market sale | −2,662 | $64.08 | $170,581 |
| Mar 11, 2026 | PTC Therapeutics Inc. | Grant or award | +12,500 | — | — |
| Feb 18, 2026 | PTC Therapeutics Inc. | Open-market sale | −7,371 | $69.36 | $511,253 |
| Jan 8, 2026 | PTC Therapeutics Inc. | Open-market sale | −2,514 | $76.45 | $192,195 |
| Jan 7, 2026 | PTC Therapeutics Inc. | Open-market sale | −3,016 | $77.48 | $233,680 |
| Jan 6, 2026 | PTC Therapeutics Inc. | Open-market sale | −5,149 | $76.95 | $396,216 |
Questions about Matthew B. Klein
What boards is Matthew B. Klein on?
Matthew B. Klein sits on the boards of ClearPoint Neuro Inc. and PTC Therapeutics Inc.
What company is Matthew B. Klein the CEO of?
Matthew B. Klein is CHIEF EXECUTIVE OFFICER of PTC Therapeutics Inc.
How long has Matthew B. Klein served on boards?
Our records show at least 6 years of board service across 2 boards, the earliest from 2023.
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