PTGX Protagonist Therapeutics, Inc.
Protagonist Therapeutics, Inc. (PTGX) Institutional Ownership
What the institutions did with PTGX last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| BlackRock, Inc. | 10.3M | 13.6% |
| FARALLON CAPITAL MANAGEMENT LLC | 6.3M | 8.4% |
| RTW INVESTMENTS, LP | 5.1M | 6.7% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 3.6M | 4.8% |
| WELLINGTON MANAGEMENT GROUP LLP | 3.4M | 4.5% |
| UBS Group AG | 3.4M | 4.5% |
| STATE STREET CORP | 3.3M | 4.4% |
| VANGUARD CAPITAL MANAGEMENT LLC | 2.9M | 3.8% |
| JOHNSON & JOHNSON | 2.4M | 3.2% |
| Invesco Ltd. | 2.3M | 3.1% |
| PRICE T ROWE ASSOCIATES INC /MD/ | 2.1M | 2.8% |
| Jupiter Topco LLC | 2.1M | 2.8% |
| GEODE CAPITAL MANAGEMENT, LLC | 1.7M | 2.3% |
| Woodline Partners LP | 1.4M | 1.9% |
| BANK OF AMERICA CORP /DE/ | 1.3M | 1.7% |
| JENNISON ASSOCIATES LLC | 1.2M | 1.5% |
| PERCEPTIVE ADVISORS LLC | 981.9K | 1.3% |
| ADAR1 Capital Management, LLC | 960.9K | 1.3% |
| MORGAN STANLEY | 906.0K | 1.2% |
| Alyeska Investment Group, L.P. | 889.3K | 1.2% |
| Hood River Capital Management LLC | 882.7K | 1.2% |
| GOLDMAN SACHS GROUP INC | 812.9K | 1.1% |
| Driehaus Capital Management LLC | 731.1K | 1.0% |
| Clearbridge Investments, LLC | 725.3K | 1.0% |
| FMR LLC | 672.2K | 0.9% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| UBS Group AG | Reduced | 5.2M | 3.4M | -1.8M |
| CITADEL ADVISORS LLC | Sold Out | 1.6M | 0 | -1.6M |
| Nationale-Nederlanden Powszechne Towarzystwo Emerytalne S.A. | Sold Out | 571.8K | 0 | -571.8K |
| BlackRock, Inc. | Increased | 9.8M | 10.3M | +528.5K |
| MARSHALL WACE, LLP | Reduced | 628.1K | 109.0K | -519.1K |
| PRICE T ROWE ASSOCIATES INC /MD/ | Increased | 1.7M | 2.1M | +484.2K |
| Rubric Capital Management LP | Sold Out | 428.0K | 0 | -428.0K |
| FRANKLIN RESOURCES INC | Increased | 137.9K | 520.0K | +382.2K |
| DIMENSIONAL FUND ADVISORS LP | Reduced | 508.1K | 178.2K | -330.0K |
| Vestal Point Capital, LP | Sold Out | 326.2K | 0 | -326.2K |
| Alyeska Investment Group, L.P. | Increased | 593.2K | 889.3K | +296.1K |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | Sold Out | 282.4K | 0 | -282.4K |
| Stephens Investment Management Group LLC | New | 0 | 281.8K | +281.8K |
| PERCEPTIVE ADVISORS LLC | Reduced | 1.2M | 981.9K | -249.0K |
| LORD, ABBETT & CO. LLC | Increased | 163.5K | 399.0K | +235.5K |
| STATE STREET CORP | Increased | 3.1M | 3.3M | +204.8K |
| Holocene Advisors, LP | Reduced | 209.9K | 8.5K | -201.4K |
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | 3.6M | 3.4M | -182.9K |
| Invesco Ltd. | Increased | 2.2M | 2.3M | +176.0K |
| NEUBERGER BERMAN GROUP LLC | Increased | 141.4K | 302.4K | +161.0K |
| Nuveen, LLC | Increased | 127.9K | 284.1K | +156.2K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 3.5M | 3.6M | +148.1K |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | New | 0 | 141.1K | +141.1K |
| STEMPOINT CAPITAL LP | Reduced | 145.2K | 16.3K | -128.9K |
| VOYA INVESTMENT MANAGEMENT LLC | Increased | 454.4K | 571.6K | +117.2K |
| MORGAN STANLEY | Reduced | 1.0M | 906.0K | -112.2K |
| PANAGORA ASSET MANAGEMENT INC | Reduced | 116.6K | 5.8K | -110.8K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | 167.6K | 57.1K | -110.5K |
| BNP PARIBAS FINANCIAL MARKETS | Increased | 194.5K | 301.5K | +106.9K |
| Catalio Capital Management, LP | New | 0 | 106.8K | +106.8K |
| Clearbridge Investments, LLC | Increased | 621.8K | 725.3K | +103.5K |
| Balyasny Asset Management L.P. | Reduced | 101.3K | 3.6K | -97.7K |
| JENNISON ASSOCIATES LLC | Increased | 1.1M | 1.2M | +79.7K |
| NORTHERN TRUST CORP | Increased | 588.0K | 666.1K | +78.1K |
| Russell Investments Group, Ltd. | Increased | 40.4K | 115.4K | +75.0K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 1.7M | 1.7M | +71.8K |
| Eagle Health Investments LP | Increased | 179.3K | 248.3K | +69.0K |
| 683 Capital Management, LLC | Reduced | 355.0K | 290.0K | -65.0K |
| AMERICAN CENTURY COMPANIES INC | Increased | 537.3K | 598.6K | +61.3K |
| Eversept Partners, LP | New | 0 | 58.5K | +58.5K |
| Hood River Capital Management LLC | Increased | 829.3K | 882.7K | +53.5K |
| ASSETMARK, INC | Increased | 46.4K | 98.7K | +52.2K |
| CASTLEARK MANAGEMENT LLC | New | 0 | 50.6K | +50.6K |
| Integral Health Asset Management, LLC | Sold Out | 50.0K | 0 | -50.0K |
| Duquesne Family Office LLC | Increased | 159.7K | 208.9K | +49.2K |
| TD Asset Management Inc | Reduced | 183.7K | 135.0K | -48.8K |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 2.8M | 2.9M | +47.5K |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | Reduced | 306.0K | 260.0K | -46.1K |
| Caption Management, LLC | New | 0 | 45.0K | +45.0K |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | New | 0 | 44.5K | +44.5K |
| WELLS FARGO & COMPANY/MN | Increased | 30.1K | 71.9K | +41.9K |
| Seven Fleet Capital Management LP | Increased | 4.0K | 45.4K | +41.4K |
| Bellevue Group AG | Increased | 14.4K | 55.7K | +41.2K |
| CITIGROUP INC | Increased | 158.7K | 198.7K | +40.0K |
| GOLDMAN SACHS GROUP INC | Increased | 778.9K | 812.9K | +33.9K |
| ADAR1 Capital Management, LLC | Reduced | 994.1K | 960.9K | -33.3K |
| FIRST TRUST ADVISORS LP | Reduced | 87.9K | 54.9K | -33.0K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Increased | 553.0K | 583.8K | +30.8K |
| MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC | Increased | 6.7K | 36.3K | +29.5K |
| BANK OF AMERICA CORP /DE/ | Increased | 1.3M | 1.3M | +29.1K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.