Time on boards
- Boards served
- 1
- Current seats
- 1
- Board service
- 4 years
- Director since
- 2023
4 years of board service in total across 1 board, counting each seat separately. Longest: Protagonist Therapeutics Inc., 3 years.
Protagonist Therapeutics Inc.
Director
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 |
|---|---|---|---|---|---|
| Feb 17, 2026 | Protagonist Therapeutics Inc. | Option exercise | +18,000 | $10.84 | $195,120 |
| Feb 17, 2026 | Protagonist Therapeutics Inc. | Open-market sale | −18,000 | $82.42 | $1,483,560 |
| Jan 2, 2026 | Protagonist Therapeutics Inc. | Grant or award | +2,695 | — | — |
| Jan 2, 2025 | Protagonist Therapeutics Inc. | Grant or award | +5,130 | — | — |
Questions about Lewis T. Williams
What boards is Lewis T. Williams on?
Lewis T. Williams sits on the board of Protagonist Therapeutics Inc.
How long has Lewis T. Williams served on boards?
Our records show at least 4 years of board service across 1 board, the earliest from 2023.
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