PRQR ProQR Therapeutics N.V.
ProQR Therapeutics N.V. (PRQR) Institutional Ownership
What the institutions did with PRQR 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 |
|---|---|---|
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 9.0M | 14.8% |
| Aberdeen Group plc | 8.9M | 14.7% |
| Affinity Asset Advisors, LLC | 5.5M | 9.1% |
| Privium Fund Management B.V. | 5.5M | 9.1% |
| Ikarian Capital, LLC | 3.4M | 5.6% |
| Woodline Partners LP | 3.3M | 5.4% |
| HEIGHTS CAPITAL MANAGEMENT, INC | 2.8M | 4.5% |
| MORGAN STANLEY | 1.8M | 2.9% |
| SPHERA FUNDS MANAGEMENT LTD. | 1.8M | 2.9% |
| Kynam Capital Management, LP | 1.6M | 2.6% |
| DAFNA Capital Management LLC | 1.5M | 2.5% |
| Squadron Capital Management LLC | 1.5M | 2.5% |
| 683 Capital Management, LLC | 1.4M | 2.3% |
| CITADEL ADVISORS LLC | 1.2M | 1.9% |
| PLATINUM INVESTMENT MANAGEMENT LTD | 1.2M | 1.9% |
| TWO SIGMA INVESTMENTS, LP | 1.1M | 1.9% |
| Eversept Partners, LP | 1.0M | 1.7% |
| BOOTHBAY FUND MANAGEMENT, LLC | 948.7K | 1.6% |
| DIADEMA PARTNERS LP | 926.0K | 1.5% |
| UBS Group AG | 639.2K | 1.1% |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 620.0K | 1.0% |
| M28 Capital Management LP | 599.8K | 1.0% |
| RAYMOND JAMES FINANCIAL INC | 571.1K | 0.9% |
| Lynx1 Capital Management LP | 521.4K | 0.9% |
| JANE STREET GROUP, LLC | 455.1K | 0.7% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| Aberdeen Group plc | Increased | 3.3M | 8.9M | +5.6M |
| Woodline Partners LP | New | 0 | 3.3M | +3.3M |
| Affinity Asset Advisors, LLC | Increased | 2.5M | 5.5M | +3.1M |
| HEIGHTS CAPITAL MANAGEMENT, INC | New | 0 | 2.8M | +2.8M |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | Increased | 6.3M | 9.0M | +2.8M |
| Sio Capital Management, LLC | Sold Out | 2.0M | 0 | -2.0M |
| Ikarian Capital, LLC | Increased | 1.5M | 3.4M | +1.9M |
| SPHERA FUNDS MANAGEMENT LTD. | New | 0 | 1.8M | +1.8M |
| Squadron Capital Management LLC | New | 0 | 1.5M | +1.5M |
| 683 Capital Management, LLC | New | 0 | 1.4M | +1.4M |
| Eversept Partners, LP | New | 0 | 1.0M | +1.0M |
| DIADEMA PARTNERS LP | Increased | 180.1K | 926.0K | +745.9K |
| Point72 Asset Management, L.P. | Reduced | 755.8K | 50.7K | -705.2K |
| Walleye Capital LLC | Sold Out | 607.5K | 0 | -607.5K |
| BOOTHBAY FUND MANAGEMENT, LLC | Increased | 355.3K | 948.7K | +593.5K |
| CITADEL ADVISORS LLC | Increased | 703.3K | 1.2M | +481.0K |
| MORGAN STANLEY | Increased | 1.3M | 1.8M | +467.4K |
| Lynx1 Capital Management LP | Increased | 68.5K | 521.4K | +452.9K |
| STEMPOINT CAPITAL LP | New | 0 | 431.1K | +431.1K |
| JANE STREET GROUP, LLC | Increased | 33.3K | 455.1K | +421.8K |
| UBS Group AG | Increased | 305.3K | 639.2K | +334.0K |
| NORTHERN TRUST CORP | Sold Out | 291.3K | 0 | -291.3K |
| TWO SIGMA INVESTMENTS, LP | Increased | 918.9K | 1.1M | +219.9K |
| Persistent Asset Partners Ltd | Increased | 46.1K | 236.5K | +190.4K |
| Burkehill Global Management, LP | New | 0 | 176.2K | +176.2K |
| Monaco Asset Management SAM | Reduced | 418.8K | 244.5K | -174.3K |
| BANK OF AMERICA CORP /DE/ | Reduced | 185.1K | 58.0K | -127.1K |
| MARSHALL WACE, LLP | Sold Out | 115.9K | 0 | -115.9K |
| BNP PARIBAS FINANCIAL MARKETS | Increased | 172.3K | 275.6K | +103.3K |
| Graham Capital Management, L.P. | Sold Out | 91.6K | 0 | -91.6K |
| XTX Topco Ltd | Sold Out | 77.3K | 0 | -77.3K |
| PLATINUM INVESTMENT MANAGEMENT LTD | Reduced | 1.2M | 1.2M | -76.1K |
| Quadrature Capital Ltd | Increased | 12.0K | 84.8K | +72.8K |
| GSA CAPITAL PARTNERS LLP | Increased | 114.3K | 173.8K | +59.6K |
| Privium Fund Management B.V. | Increased | 5.5M | 5.5M | +52.9K |
| RFG Advisory, LLC | Increased | 19.0K | 64.0K | +45.0K |
| Invesco Ltd. | Sold Out | 44.6K | 0 | -44.6K |
| DAFNA Capital Management LLC | Reduced | 1.6M | 1.5M | -37.2K |
| Steward Partners Investment Advisory, LLC | Increased | 1.3K | 35.2K | +33.9K |
| MILLENNIUM MANAGEMENT LLC | Reduced | 194.2K | 161.0K | -33.2K |
| Squarepoint Ops LLC | Sold Out | 31.5K | 0 | -31.5K |
| NINE MASTS CAPITAL Ltd | Sold Out | 29.5K | 0 | -29.5K |
| Keating Financial Advisory Services, Inc. | Increased | 20.6K | 47.6K | +27.0K |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 84.9K | 58.0K | -26.9K |
| RAYMOND JAMES FINANCIAL INC | Increased | 546.1K | 571.1K | +25.0K |
| SIMPLEX TRADING, LLC | Reduced | 24.9K | 271 | -24.6K |
| Verdad Advisers, LP | New | 0 | 19.1K | +19.1K |
| GROUP ONE TRADING LLC | Sold Out | 18.9K | 0 | -18.9K |
| TWO SIGMA SECURITIES, LLC | New | 0 | 16.0K | +16.0K |
| GUGGENHEIM CAPITAL LLC | Increased | 27.6K | 40.0K | +12.3K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Sold Out | 12.2K | 0 | -12.2K |
| Virtu Financial LLC | New | 0 | 11.6K | +11.6K |
| WETZEL INVESTMENT ADVISORS, INC. | New | 0 | 10.5K | +10.5K |
| NANO CAP NEW MILLENNIUM GROWTH FUND L P | Increased | 10.0K | 17.5K | +7.5K |
| China Universal Asset Management Co., Ltd. | Reduced | 20.0K | 12.5K | -7.5K |
| ROYAL BANK OF CANADA | Increased | 308 | 3.3K | +3.0K |
| Vanguard Personalized Indexing Management, LLC | Increased | 19.4K | 22.1K | +2.7K |
| Axiom Investment Management LLC | Reduced | 33.0K | 31.0K | -2.0K |
| Caitong International Asset Management Co., Ltd | Reduced | 123 | 4 | -119 |
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.