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.
Sign in or subscribeLargest holders
| Manager | Shares | % of reported |
|---|---|---|
| BlackRock, Inc. | 10.3M | 12.4% |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | 7.2M | 8.7% |
| FARALLON CAPITAL MANAGEMENT LLC | 6.3M | 7.7% |
| RTW INVESTMENTS, LP | 5.1M | 6.1% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 3.6M | 4.4% |
| WELLINGTON MANAGEMENT GROUP LLP | 3.4M | 4.1% |
| UBS Group AG | 3.4M | 4.1% |
| STATE STREET CORP | 3.3M | 4.0% |
| VANGUARD CAPITAL MANAGEMENT LLC | 2.9M | 3.4% |
| JOHNSON & JOHNSON | 2.4M | 3.0% |
| Invesco Ltd. | 2.3M | 2.8% |
| PRICE T ROWE ASSOCIATES INC /MD/ | 2.1M | 2.6% |
| Jupiter Topco LLC | 2.1M | 2.6% |
| GEODE CAPITAL MANAGEMENT, LLC | 1.7M | 2.1% |
| Woodline Partners LP | 1.4M | 1.7% |
| BANK OF AMERICA CORP /DE/ | 1.3M | 1.6% |
| JENNISON ASSOCIATES LLC | 1.2M | 1.4% |
| PERCEPTIVE ADVISORS LLC | 981.9K | 1.2% |
| ADAR1 Capital Management, LLC | 960.9K | 1.2% |
| MORGAN STANLEY | 906.0K | 1.1% |
| Alyeska Investment Group, L.P. | 889.3K | 1.1% |
| Hood River Capital Management LLC | 882.7K | 1.1% |
| GOLDMAN SACHS GROUP INC | 812.9K | 1.0% |
| Driehaus Capital Management LLC | 731.1K | 0.9% |
| Clearbridge Investments, LLC | 725.3K | 0.9% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | Increased | 58.7K | 7.2M | +7.2M |
| 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 |
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.