What smart money is saying about Protagonist Therapeutics
PTGX
No fund has written a full thesis on Protagonist Therapeutics in our archive, but 1 fund letter reports a position in it, most recently Clearbridge Small Cap Growth Strategy in December 2025.
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1
Reported positions
1
Bought
0
Sold
1
Letter
Position history
Every position in Protagonist Therapeutics on record in the archive was reported in Q4 2025, across 1 fund letter, with 1 buy (opened or added).
| Quarter | Letters | Bought | Sold | Theses |
|---|---|---|---|---|
| Q4 2025 | 1 | 1 | 0 | 0 |
Bought and Sold count moves: the same sentence published by several funds of one house in a quarter counts once.
Fund activity · 1 position · 1 move
- New positionClearbridge Small Cap Growth StrategyDecember 2025
“During the fourth quarter we initiated four new common stock investments: Protagonist Therapeutics, Simpson Manufacturing Company, BETA Technologies, and Dyne Therapeutics.”
Protagonist Therapeutics
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