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..
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Versant Capital Management, Inc | Buy | +5 | +18.5% | 32 | $4.51K | Q3 2026 | Oct 02, 2026 |
| Envestnet Asset Management Inc | Sell | -19,134 | -100.0% | 0 | $0.00 | Q3 2026 | Sep 23, 2026 |
| State Street Corp | Sell | -3,321,554 | -100.0% | 0 | $0.00 | Q3 2026 | Sep 22, 2026 |
| Manufacturers Life Insurance Company, The | Sell | -108,555 | -100.0% | 0 | $0.00 | Q3 2026 | Sep 09, 2026 |
| Parkside Financial Bank & Trust | Sell | -76 | -100.0% | 0 | $0.00 | Q3 2026 | Sep 04, 2026 |
| Allianz Asset Management Gmbh | Sell | -9,600 | -100.0% | 0 | $0.00 | Q3 2026 | Sep 02, 2026 |
| California State Teachers Retirement System | Sell | -58,961 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 24, 2026 |
| Fulcrum Asset Management Llp | Sell | -46 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 18, 2026 |
| Seven Fleet Capital Management Lp | Sell | -45,400 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 17, 2026 |
| Empowered Funds, Llc | Sell | -2,264 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 17, 2026 |
| Farallon Capital Management Llc | Sell | -6,348,906 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Rtw Investments, Lp | Sell | -5,061,175 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Wellington Management Group Llp | Sell | -3,416,781 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Invesco Ltd. | Sell | -2,340,667 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Price T Rowe Associates Inc | Sell | -2,149,662 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Woodline Partners Lp | Sell | -1,414,173 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Bank Of America Corp | Sell | -1,324,498 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Perceptive Advisors Llc | Sell | -981,879 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Adar1 Capital Management, Llc | Sell | -960,863 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Alyeska Investment Group, L.P. | Sell | -889,298 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Hood River Capital Management Llc | Sell | -882,738 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Goldman Sachs Group Inc | Sell | -812,852 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Driehaus Capital Management Llc | Sell | -731,053 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Charles Schwab Investment Management Inc | Sell | -583,774 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Lord, Abbett & Co. Llc | Sell | -398,994 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| 683 Capital Management, Llc | Sell | -290,000 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Nextbio Capital Management Lp | Sell | -219,333 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Duquesne Family Office Llc | Sell | -208,900 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Boxer Capital Management, Llc | Sell | -170,000 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Ameriprise Financial Inc | Sell | -143,810 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
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.
Related PTGX Institutional Insights
- PTGX Overview
- PTGX 13F Institutional Holders
- PTGX Top Institutional Shareholders
- Healthcare Sector Institutional Ownership
- Healthcare Sector Portfolio Overlap
- Institutional Portfolio Overlap & Shared Holdings
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- PTGX Insider Trading & SEC Form 4 Activity
- PTGX Articles
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