Protagonist Therapeutics, Inc: which funds bought and sold
Institutions that bought and sold Protagonist Therapeutics shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.
Between March 31, 2026 and June 30, 2026, 198 institutions that filed 13F reports for both quarters added to or opened positions in Protagonist Therapeutics, and 124 cut or closed them. Together they sold a net 2.3M shares, −3.0% on what they held at the start of the quarter. Active managers and hedge funds on our list were net sellers of 2.2M shares (−7.4%); index fund managers were net buyers of 1.1M shares (+4.8%). 58 opened a new position and 36 sold out entirely.
Bought, Q2 2026 198 institutions, 58 of them new holders Sold, Q2 2026 124 institutions, 36 of them sold out
Net change, all compared −2.3M shares (−3.0%)
Net change, active managers −2.2M shares (−7.4%), 31 bought, 24 sold
Buyers versus sellers
198 bought 52 124 sold
Active managers and hedge funds 31 bought · 24 sold · −2.2M
Index fund managers 9 bought · 3 sold · +1.1M
Other institutions 158 bought · 97 sold · −1.1M
Biggest buyers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Blackrock, Inc. Index funds | +528K +5.4% | 10.3M | $1.3B |
| Price T Rowe Associates Inc Active manager | +484K +29.1% | 2.1M | $264M |
| Franklin Resources Inc Active manager | +382K +277.2% | 520K | $63.7M |
| Alyeska Investment Group, L.P. Hedge fund | +296K +49.9% | 889K | $109M |
| Stephens Investment Management Group LLC | +282K New position | 282K | $34.5M |
| Lord, Abbett & Co. LLC | +236K +144.1% | 399K | $48.9M |
| State Street Corp Index funds | +205K +6.6% | 3.3M | $407M |
| Invesco Ltd. | +176K +8.1% | 2.3M | $287M |
| Neuberger Berman Group LLC Active manager | +161K +113.8% | 302K | $37.1M |
| Nuveen, LLC | +156K +122.1% | 284K | $34.8M |
| Vanguard Portfolio Management LLC Index funds | +148K +4.3% | 3.6M | $445M |
| Nomura Asset Management International Inc. | +141K New position | 141K | $17.3M |
| Voya Investment Management LLC | +117K +25.8% | 572K | $70.1M |
| BNP Paribas Financial Markets | +107K +55.0% | 301K | $37M |
| Catalio Capital Management, LP | +107K New position | 107K | $13.1M |
| Clearbridge Investments, LLC Active manager | +104K +16.6% | 725K | $88.9M |
| Jennison Associates LLC Active manager | +80K +7.4% | 1.2M | $141M |
| Northern Trust Corp Index funds | +78K +13.3% | 666K | $81.7M |
| Russell Investments Group, Ltd. | +75K +185.9% | 115K | $14.1M |
| Geode Capital Management, LLC Index funds | +72K +4.3% | 1.7M | $213M |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Price T Rowe Associates Inc Active manager | +484K +29.1% | 2.1M | $264M |
| Franklin Resources Inc Active manager | +382K +277.2% | 520K | $63.7M |
| Alyeska Investment Group, L.P. Hedge fund | +296K +49.9% | 889K | $109M |
| Neuberger Berman Group LLC Active manager | +161K +113.8% | 302K | $37.1M |
| Clearbridge Investments, LLC Active manager | +104K +16.6% | 725K | $88.9M |
| Jennison Associates LLC Active manager | +80K +7.4% | 1.2M | $141M |
| American Century Companies Inc Active manager | +61K +11.4% | 599K | $73.4M |
| Eversept Partners, LP Hedge fund | +59K New position | 59K | $7.2M |
| Duquesne Family Office LLC Hedge fund | +49K +30.8% | 209K | $25.6M |
| Arrowstreet Capital, Limited Partnership Hedge fund | +45K New position | 45K | $5.5M |
Biggest sellers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| UBS Group AG | −1.8M −34.4% | 3.4M | $417M |
| Citadel Advisors LLC Hedge fund | −1.6M Sold out | 0 | — |
| Nationale-Nederlanden Powszechne Towarzystwo Emerytalne S.A. | −572K Sold out | 0 | — |
| Marshall Wace, LLP Hedge fund | −519K −82.6% | 109K | $13.4M |
| Rubric Capital Management LP Hedge fund | −428K Sold out | 0 | — |
| Dimensional Fund Advisors LP | −330K −64.9% | 178K | $21.8M |
| Vestal Point Capital, LP Hedge fund | −326K Sold out | 0 | — |
| Adage Capital Partners Gp, L.L.C. Hedge fund | −282K Sold out | 0 | — |
| Perceptive Advisors LLC Hedge fund | −249K −20.2% | 982K | $120M |
| Holocene Advisors, LP Hedge fund | −201K −96.0% | 8,495 | $1M |
| Wellington Management Group LLP Active manager | −183K −5.1% | 3.4M | $419M |
| Stempoint Capital LP | −129K −88.8% | 16K | $2M |
| Morgan Stanley | −112K −11.0% | 906K | $111M |
| Panagora Asset Management Inc Active manager | −111K −95.0% | 5,832 | $714,887 |
| Susquehanna International Group, LLP | −111K −65.9% | 57K | $7M |
| Balyasny Asset Management L.P. Hedge fund | −98K −96.4% | 3,598 | $441,043 |
| 683 Capital Management, LLC Hedge fund | −65K −18.3% | 290K | $35.5M |
| Integral Health Asset Management, LLC | −50K Sold out | 0 | — |
| TD Asset Management Inc | −49K −26.5% | 135K | $16.5M |
| BNP Paribas Asset Management Holding S.A. | −46K −15.1% | 260K | $31.9M |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Citadel Advisors LLC Hedge fund | −1.6M Sold out | 0 | — |
| Marshall Wace, LLP Hedge fund | −519K −82.6% | 109K | $13.4M |
| Rubric Capital Management LP Hedge fund | −428K Sold out | 0 | — |
| Vestal Point Capital, LP Hedge fund | −326K Sold out | 0 | — |
| Adage Capital Partners Gp, L.L.C. Hedge fund | −282K Sold out | 0 | — |
| Perceptive Advisors LLC Hedge fund | −249K −20.2% | 982K | $120M |
| Holocene Advisors, LP Hedge fund | −201K −96.0% | 8,495 | $1M |
| Wellington Management Group LLP Active manager | −183K −5.1% | 3.4M | $419M |
| Panagora Asset Management Inc Active manager | −111K −95.0% | 5,832 | $714,887 |
| Balyasny Asset Management L.P. Hedge fund | −98K −96.4% | 3,598 | $441,043 |
New positions
| Institution | Shares | Value June 30, 2026 |
|---|---|---|
| Stephens Investment Management Group LLC | 282K | $34.5M |
| Nomura Asset Management International Inc. | 141K | $17.3M |
| Catalio Capital Management, LP | 107K | $13.1M |
| Eversept Partners, LPHedge fund | 59K | $7.2M |
| Castleark Management LLC | 51K | $6.2M |
| Caption Management, LLC | 45K | $5.5M |
| Arrowstreet Capital, Limited PartnershipHedge fund | 45K | $5.5M |
| Schonfeld Strategic Advisors LLCHedge fund | 28K | $3.4M |
| Brevan Howard Capital Management LPHedge fund | 25K | $3.1M |
| Phocas Financial Corp. | 16K | $2M |
Sold out
| Institution | Shares | Value March 31, 2026 |
|---|---|---|
| Citadel Advisors LLCHedge fund | 1.6M | $164M |
| Nationale-Nederlanden Powszechne Towarzystwo Emerytalne S.A. | 572K | $60.3M |
| Rubric Capital Management LPHedge fund | 428K | $45.1M |
| Vestal Point Capital, LPHedge fund | 326K | $34.4M |
| Adage Capital Partners Gp, L.L.C.Hedge fund | 282K | $29.8M |
| Integral Health Asset Management, LLC | 50K | $5.3M |
| Royce & Associates LPActive manager | 14K | $1.5M |
| Hussman Strategic Advisors, Inc. | 11K | $1.1M |
| Nomura Holdings Inc | 10K | $1.1M |
| Advisors Asset Management, Inc. | 4,644 | $489,478 |
Who holds the shares
- Institutions reporting
- 342
- Ten largest holders
- 56.9% of 13F-reported shares
- Index fund managers
- 31.3% of 13F-reported shares
- Active managers and hedge funds
- 36.9% of 13F-reported shares
| Type | Bought | Sold | New | Sold out | Net change in shares | Net % |
|---|---|---|---|---|---|---|
| Active managers and hedge funds | 31 | 24 | 10 | 7 | −2.2M | −7.4% |
| Index fund managers | 9 | 3 | 0 | 0 | +1.1M | +4.8% |
| Other institutions | 158 | 97 | 48 | 29 | −1.1M | −5.0% |
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