PROTAGONIST THERAPEUTICS INC (PTGX) Institutional Ownership Changes & 13F Activity

PROTAGONIST THERAPEUTICS INC (PTGX). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q3 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Farallon Capital Management Llc, Rtw Investments, Lp, Wellington Management Group Llp, State Street Corp, and Invesco Ltd..

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Versant Capital Management, IncBuy+5+18.5%32$4.51KQ3 2026Oct 02, 2026
Envestnet Asset Management IncSell-19,134-100.0%0$0.00Q3 2026Sep 23, 2026
State Street CorpSell-3,321,554-100.0%0$0.00Q3 2026Sep 22, 2026
Manufacturers Life Insurance Company, TheSell-108,555-100.0%0$0.00Q3 2026Sep 09, 2026
Parkside Financial Bank & TrustSell-76-100.0%0$0.00Q3 2026Sep 04, 2026
Allianz Asset Management GmbhSell-9,600-100.0%0$0.00Q3 2026Sep 02, 2026
California State Teachers Retirement SystemSell-58,961-100.0%0$0.00Q3 2026Aug 24, 2026
Fulcrum Asset Management LlpSell-46-100.0%0$0.00Q3 2026Aug 18, 2026
Seven Fleet Capital Management LpSell-45,400-100.0%0$0.00Q3 2026Aug 17, 2026
Empowered Funds, LlcSell-2,264-100.0%0$0.00Q3 2026Aug 17, 2026
Farallon Capital Management LlcSell-6,348,906-100.0%0$0.00Q3 2026Aug 14, 2026
Rtw Investments, LpSell-5,061,175-100.0%0$0.00Q3 2026Aug 14, 2026
Wellington Management Group LlpSell-3,416,781-100.0%0$0.00Q3 2026Aug 14, 2026
Invesco Ltd.Sell-2,340,667-100.0%0$0.00Q3 2026Aug 14, 2026
Price T Rowe Associates IncSell-2,149,662-100.0%0$0.00Q3 2026Aug 14, 2026
Woodline Partners LpSell-1,414,173-100.0%0$0.00Q3 2026Aug 14, 2026
Bank Of America CorpSell-1,324,498-100.0%0$0.00Q3 2026Aug 14, 2026
Perceptive Advisors LlcSell-981,879-100.0%0$0.00Q3 2026Aug 14, 2026
Adar1 Capital Management, LlcSell-960,863-100.0%0$0.00Q3 2026Aug 14, 2026
Alyeska Investment Group, L.P.Sell-889,298-100.0%0$0.00Q3 2026Aug 14, 2026
Hood River Capital Management LlcSell-882,738-100.0%0$0.00Q3 2026Aug 14, 2026
Goldman Sachs Group IncSell-812,852-100.0%0$0.00Q3 2026Aug 14, 2026
Driehaus Capital Management LlcSell-731,053-100.0%0$0.00Q3 2026Aug 14, 2026
Charles Schwab Investment Management IncSell-583,774-100.0%0$0.00Q3 2026Aug 14, 2026
Lord, Abbett & Co. LlcSell-398,994-100.0%0$0.00Q3 2026Aug 14, 2026
683 Capital Management, LlcSell-290,000-100.0%0$0.00Q3 2026Aug 14, 2026
Nextbio Capital Management LpSell-219,333-100.0%0$0.00Q3 2026Aug 14, 2026
Duquesne Family Office LlcSell-208,900-100.0%0$0.00Q3 2026Aug 14, 2026
Boxer Capital Management, LlcSell-170,000-100.0%0$0.00Q3 2026Aug 14, 2026
Ameriprise Financial IncSell-143,810-100.0%0$0.00Q3 2026Aug 14, 2026
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Frequently asked questions about PTGX activity

  • Which institutional owners are buying PTGX?

    Institutional owners buying PTGX include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in PTGX activity?

    "Buy" means an investor increased their reported position in PTGX compared to the prior reporting period. This reflects growing exposure to PROTAGONIST THERAPEUTICS INC (PTGX) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in PTGX increasing?

    Institutional interest in PTGX can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.