Protagonist Therapeutics, Inc (PTGX) insider trading
Every open-market stock purchase and sale by Protagonist Therapeutics, Inc executives, directors, large shareholders and members of Congress, from SEC Form 4 filings. Sector: Other.
Insider activity at a glance
- Insiders sold $54.8M over the last 12 months (21 sales). No open-market buys.
- Last insider buy: Harold E Selick (Director), $80.4K, 6 years ago.
Last 12 months: insiders bought $0 (0 buys) and sold $54.8M (21 sales). Last close $98.03 on Jun 7, 2026.
Recent PTGX insider trades
| Date | Insider | Trade | Value |
|---|---|---|---|
| Jun 23, 2026 | William D. Waddill (Director) | Sold | $1.1M |
| Jun 23, 2026 | William D. Waddill (Director) | Bought (not open market) | — |
| Jun 10, 2026 | William D. Waddill (Director) | Sold | $969K |
| Jun 10, 2026 | William D. Waddill (Director) | Bought (not open market) | — |
| Jun 10, 2026 | William D. Waddill (Director) | Bought (not open market) | — |
| May 29, 2026 | William D. Waddill (Director) | Sold | $897K |
| May 29, 2026 | William D. Waddill (Director) | Bought (not open market) | — |
| May 12, 2026 | Dinesh V Ph D Patel (CEO) | Sold | $7.5M |
| May 12, 2026 | Dinesh V Ph D Patel (CEO) | Sold | $7.5M |
| May 12, 2026 | Dinesh V Ph D Patel (CEO) | Bought (not open market) | — |
| May 12, 2026 | Dinesh V Ph D Patel (CEO) | Bought (not open market) | — |
| May 8, 2026 | Bryan Giraudo (Director) | Sold | $600K |
| May 8, 2026 | Bryan Giraudo (Director) | Sold | $513K |
| May 7, 2026 | Bryan Giraudo (Director) | Sold | $3.6M |
| May 7, 2026 | Bryan Giraudo (Director) | Sold | $1.2M |
| May 7, 2026 | Bryan Giraudo (Director) | Bought (not open market) | — |
| May 7, 2026 | Bryan Giraudo (Director) | Bought (not open market) | — |
| Apr 23, 2026 | Dinesh V Ph D Patel (CEO) | Sold (not open market) | — |
| Apr 20, 2026 | Asif Ali (CFO) | Sold | $185K |
| Mar 26, 2026 | Asif Ali (CFO) | Sold | $2.6M |
| Mar 26, 2026 | Harold E Selick (Director) | Sold | $2.5M |
| Mar 26, 2026 | Arturo Molina Md (C-suite exec) | Sold | $1.6M |
| Mar 26, 2026 | Asif Ali (CFO) | Bought (not open market) | — |
| Mar 26, 2026 | Arturo Molina Md (C-suite exec) | Bought (not open market) | — |
| Mar 26, 2026 | Harold E Selick (Director) | Bought (not open market) | — |
Who's trading PTGX
- William D. Waddill, Director: sold $5.6M (6 sales), last Jun 23, 2026
- Dinesh V Ph D Patel, CEO: sold $27.4M (9 sales), last May 12, 2026
- Bryan Giraudo, Director: sold $5.9M (4 sales), last May 8, 2026
- Asif Ali, CFO: sold $7.3M (5 sales), last Apr 20, 2026
- Arturo Molina Md, C-suite exec: sold $4.5M (6 sales), last Mar 26, 2026
- Harold E Selick, Director: sold $2.5M (1 sale), last Mar 26, 2026
- Lewis T Williams, Director: sold $1.5M (1 sale), last Feb 17, 2026
- Sarah A O'Dowd, Director: other filings, last Jan 2, 2026
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