Time on boards
- Boards served
- 2
- Current seats
- 2
- Board service
- 7 years
- Director since
- 2023
7 years of board service in total across 2 boards, counting each seat separately. Longest: Halozyme 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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Nautilus Biotechnology Inc. June 13, 202497.8%
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 |
|---|---|---|---|---|---|
| Oct 1, 2026 | Halozyme Therapeutics Inc. | Open-market sale | −730 | $107.17 | $78,233 |
| Oct 1, 2026 | Halozyme Therapeutics Inc. | Open-market sale | −3,300 | $108.45 | $357,898 |
| Oct 1, 2026 | Halozyme Therapeutics Inc. | Open-market sale | −1,100 | $109.57 | $120,526 |
| Oct 1, 2026 | Halozyme Therapeutics Inc. | Open-market sale | −100 | $110.04 | $11,004 |
| Sep 16, 2026 | Halozyme Therapeutics Inc. | Open-market sale | −3,100 | $106.13 | $329,003 |
| Sep 16, 2026 | Halozyme Therapeutics Inc. | Open-market sale | −3,000 | $106.83 | $320,490 |
| Sep 16, 2026 | Halozyme Therapeutics Inc. | Open-market sale | −8,896 | $108.04 | $961,124 |
| Sep 16, 2026 | Halozyme Therapeutics Inc. | Open-market sale | −4,000 | $108.99 | $435,960 |
| May 5, 2026 | Halozyme Therapeutics Inc. | Grant or award | +3,796 | — | — |
| May 1, 2025 | Halozyme Therapeutics Inc. | Grant or award | +4,165 | — | — |
| Aug 14, 2024 | Halozyme Therapeutics Inc. | Open-market sale | −9,881 | $57.70 | $570,134 |
| Aug 13, 2024 | Halozyme Therapeutics Inc. | Open-market sale | −10,000 | $56.19 | $561,900 |
| Aug 12, 2024 | Halozyme Therapeutics Inc. | Open-market sale | −10,000 | $55.72 | $557,200 |
| Jun 12, 2024 | Halozyme Therapeutics Inc. | Open-market sale | −10,000 | $50.62 | $506,200 |
| Jun 11, 2024 | Halozyme Therapeutics Inc. | Open-market sale | −10,000 | $50.01 | $500,100 |
Questions about Matthew L. Posard
What boards is Matthew L. Posard on?
Matthew L. Posard sits on the boards of Halozyme Therapeutics Inc. and Nautilus Biotechnology Inc.
How long has Matthew L. Posard served on boards?
Our records show at least 7 years of board service across 2 boards, the earliest from 2023.
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