PTGX

Protagonist Therapeutics Inc

3 super-investor ownerscombined $183Mlargest position 0.6%

3 super-investors hold PTGX worth a combined $183M. The largest position: Stanley Druckenmiller at 0.6% of their portfolio. No cohort buying or selling was filed on the name this quarter. Cohort Conviction Score: 40 — ranked #118 of 724 scored stocks.

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Why super-investors own PTGX

PTGX draws only three holders from the tracked cohort, with a combined $183M that is heavily skewed by Joel Greenblatt's $164M position — by far the largest dollar commitment, though it represents just 0.1% of his portfolio. Stanley Druckenmiller holds the highest portfolio concentration at 0.6% ($17M), making him the most convicted owner on a relative basis. Polen Capital Management holds a negligible $3M slice. Cohort count has been flat at one for several quarters before expanding to three, and the 2026Q1 quarter saw zero activity — no adds, trims, or exits — suggesting holders are in a wait-and-see posture rather than actively building. Broader interest remains narrow with no signs of acceleration.

AI-synthesized from 13F filings. Not investment advice.