PROTAGONIST THERAPEUTICS INC (PTGX) Institutional Ownership and Insiders Activity

PROTAGONIST THERAPEUTICS INC (PTGX) is widely held by institutional investors, with 1 tracked firm reporting positions valued at approximately $2.57M based on SEC Form 13F filings for the quarter ended March 31, 2026.

Polen Capital Management is the largest disclosed holder, reporting approximately $2.57M in PTGX holdings in its latest filing.

Institutional ownership among tracked investors remains highly concentrated, with Polen Capital Management representing the majority of disclosed value.