ProQR Therapeutics N.V. - PRQR
Detailed investor-level table based on 13F positions.
Early Q1 2026 data: only 7 institutional holders reported so far. The full shareholder list will grow as more funds file with the SEC.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ADAGE CAPITAL PARTNERS GP, L.L.C. | History | No change | 6,253,467 | 12,632 | 0.02% | 0.02% | 1 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Privium Fund Management B.V. | History | Added to | 5,357,762 | 10,822 | 1.99% | 1.91% | 2 | +359,475 | 7.19% | Q4 2025 | Feb 03, 2026 |
| Aberdeen Group plc | History | Added to | 2,950,676 | 5,960 | 0.01% | 0.01% | 3 | +651,853 | 28.36% | Q4 2025 | Jan 16, 2026 |
| Affinity Asset Advisors, LLC | History | Reduced | 2,454,278 | 4,957 | 0.28% | 0.67% | 4 | -1,145,722 | -31.83% | Q4 2025 | Feb 13, 2026 |
| Sio Capital Management, LLC | History | Added to | 2,164,181 | 4,371 | 0.69% | 1.12% | 5 | +89,042 | 4.29% | Q4 2025 | Feb 17, 2026 |
| DAFNA Capital Management LLC | History | No change | 1,567,561 | 3,166 | 0.74% | 0.82% | 6 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Kynam Capital Management, LP | History | Reduced | 1,566,317 | 3,163 | 0.2% | 0.26% | 7 | -83,145 | -5.04% | Q4 2025 | Feb 17, 2026 |
| Ikarian Capital, LLC | History | Added to | 1,492,229 | 3,014 | 0.24% | 0.19% | 8 | +600,000 | 67.25% | Q4 2025 | Feb 18, 2026 |
| MORGAN STANLEY | History | Reduced | 1,367,119 | 2,761 | 0.0% | 0.0% | 9 | -1,534,083 | -52.88% | Q4 2025 | Feb 13, 2026 |
| PLATINUM INVESTMENT MANAGEMENT LTD | History | No change | 1,235,514 | 2,495 | 0.58% | 0.17% | 10 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| ArrowMark Colorado Holdings LLC | History | Reduced | 1,164,722 | 2,352 | 0.05% | 0.05% | 11 | -81,512 | -6.54% | Q4 2025 | Feb 17, 2026 |
| M28 Capital Management LP | History | No change | 1,019,498 | 2,059 | 1.5% | 3.19% | 12 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| TWO SIGMA INVESTMENTS, LP | History | Added to | 839,384 | 1,695 | 0.0% | 0.0% | 13 | +422,084 | 101.15% | Q4 2025 | Feb 17, 2026 |
| Point72 Asset Management, L.P. | History | Added to | 813,650 | 1,643 | 0.0% | 0.0% | 14 | +63,650 | 8.49% | Q4 2025 | Feb 17, 2026 |
| UBS Group AG | History | Added to | 797,664 | 1,611 | 0.0% | 0.0% | 15 | +703,114 | 743.64% | Q4 2025 | Jan 29, 2026 |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | History | New | 620,000 | 1,252 | 0.0% | — | 16 | +620,000 | New | Q4 2025 | Feb 17, 2026 |
| CITADEL ADVISORS LLC | History | Reduced | 617,422 | 1,247 | 0.0% | 0.0% | 17 | -39,590 | -6.03% | Q4 2025 | Feb 17, 2026 |
| Walleye Capital LLC | History | Added to | 591,785 | 1,195 | 0.0% | 0.0% | 18 | +59,808 | 11.24% | Q4 2025 | Feb 13, 2026 |
| TWO SIGMA ADVISERS, LP | History | Added to | 452,400 | 913 | 0.0% | 0.0% | 19 | +223,800 | 97.9% | Q4 2025 | Feb 17, 2026 |
| MILLENNIUM MANAGEMENT LLC | History | Added to | 434,991 | 878 | 0.0% | 0.0% | 20 | +194,369 | 80.78% | Q4 2025 | Feb 17, 2026 |
| Monaco Asset Management SAM | History | Reduced | 428,803 | 866 | 0.15% | 0.06% | 21 | -31,197 | -6.78% | Q4 2025 | Feb 10, 2026 |
| BOOTHBAY FUND MANAGEMENT, LLC | History | Added to | 355,283 | 717 | 0.01% | 0.01% | 22 | +106,993 | 43.09% | Q4 2025 | Feb 17, 2026 |
| RAYMOND JAMES FINANCIAL INC | History | Added to | 342,886 | 692 | 0.0% | 0.0% | 23 | +232,616 | 210.95% | Q4 2025 | Feb 18, 2026 |
| NORTHERN TRUST CORP | History | No change | 294,742 | 595 | 0.0% | 0.0% | 24 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Palo Alto Investors LP | History | No change | 188,807 | 381 | 0.05% | 0.07% | 25 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| BANK OF AMERICA CORP /DE/ | History | Added to | 173,924 | 351 | 0.0% | 0.0% | 26 | +54,726 | 45.91% | Q4 2025 | Feb 17, 2026 |
| DIADEMA PARTNERS LP | History | Added to | 167,532 | 338 | 0.06% | 0.09% | 27 | +9,838 | 6.24% | Q4 2025 | Feb 17, 2026 |
| JANE STREET GROUP, LLC | History | Added to | 160,175 | 323 | 0.0% | 0.0% | 28 | +149,414 | 1388.48% | Q4 2025 | Feb 12, 2026 |
| BNP PARIBAS FINANCIAL MARKETS | History | Added to | 157,149 | 317 | 0.0% | 0.0% | 29 | +17,555 | 12.58% | Q4 2025 | Feb 10, 2026 |
| FRANKLIN STREET ADVISORS INC /NC | History | No change | 150,000 | 303 | 0.02% | 0.02% | 30 | 0 | 0.0% | Q4 2025 | Jan 21, 2026 |
| XTX Topco Ltd | History | Added to | 117,900 | 238 | 0.01% | 0.0% | 31 | +107,713 | 1057.36% | Q4 2025 | Feb 17, 2026 |
| DEUTSCHE BANK AG\ | History | No change | 108,762 | 219 | 0.0% | 0.0% | 32 | 0 | 0.0% | Q4 2025 | Feb 11, 2026 |
| Quadrature Capital Ltd | History | Added to | 104,231 | 210 | 0.0% | 0.0% | 33 | +68,091 | 188.41% | Q4 2025 | Feb 17, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | History | Added to | 84,909 | 171 | 0.0% | 0.0% | 34 | +36,087 | 73.92% | Q4 2025 | Feb 09, 2026 |
| OneDigital Investment Advisors LLC | History | Added to | 85,000 | 171 | 0.0% | 0.0% | 35 | +5,000 | 6.25% | Q4 2025 | Feb 13, 2026 |
| Lynx1 Capital Management LP | History | New | 68,486 | 138 | 0.03% | — | 36 | +68,486 | New | Q4 2025 | Feb 17, 2026 |
| GROUP ONE TRADING LLC | History | Added to | 59,288 | 119 | 0.0% | 0.0% | 37 | +53,388 | 904.88% | Q4 2025 | Feb 12, 2026 |
| Persistent Asset Partners Ltd | History | Added to | 45,154 | 91 | 0.04% | 0.05% | 38 | +8,874 | 24.46% | Q4 2025 | Feb 17, 2026 |
| Velan Capital Investment Management LP | History | No change | 45,000 | 90 | 0.05% | 0.09% | 39 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| SIMPLEX TRADING, LLC | History | Added to | 44,269 | 89 | 0.0% | — | 40 | +44,169 | 44169.0% | Q4 2025 | Feb 11, 2026 |
| FIFTH THIRD BANCORP | History | No change | 30,000 | 60 | 0.0% | 0.0% | 41 | 0 | 0.0% | Q4 2025 | Feb 02, 2026 |
| RFG Advisory, LLC | History | No change | 30,000 | 60 | 0.0% | 0.0% | 42 | 0 | 0.0% | Q4 2025 | Feb 03, 2026 |
| Invesco Ltd. | History | New | 25,347 | 51 | 0.0% | — | 43 | +25,347 | New | Q4 2025 | Feb 19, 2026 |
| MOODY LYNN & LIEBERSON, LLC | History | New | 25,000 | 50 | 0.0% | — | 44 | +25,000 | New | Q4 2025 | Jan 15, 2026 |
| Vanguard Personalized Indexing Management, LLC | History | No change | 22,314 | 45 | 0.0% | 0.0% | 45 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| Keating Financial Advisory Services, Inc. | History | New | 20,000 | 40 | 0.01% | — | 47 | +20,000 | New | Q4 2025 | Feb 09, 2026 |
| PNC FINANCIAL SERVICES GROUP, INC. | History | Added to | 20,097 | 40 | 0.0% | 0.0% | 46 | +570 | 2.92% | Q4 2025 | Feb 06, 2026 |
| Mariner, LLC | History | No change | 19,219 | 38 | 0.0% | 0.0% | 48 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| GUGGENHEIM CAPITAL LLC | History | New | 17,224 | 34 | 0.0% | — | 49 | +17,224 | New | Q4 2025 | Feb 17, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | History | Reduced | 14,000 | 28 | 0.0% | 0.0% | 50 | -11,245 | -44.54% | Q4 2025 | Feb 17, 2026 |
| Atom Investors LP | History | No change | 13,107 | 26 | 0.0% | 0.0% | 51 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| ROYAL BANK OF CANADA | History | New | 10,303 | 20 | 0.0% | — | 53 | +10,303 | New | Q4 2025 | Feb 17, 2026 |
| NANO CAP NEW MILLENNIUM GROWTH FUND L P | History | New | 10,000 | 20 | 0.02% | — | 54 | +10,000 | New | Q4 2025 | Feb 06, 2026 |
| TRUIST FINANCIAL CORP | History | No change | 10,000 | 20 | 0.0% | 0.0% | 52 | 0 | 0.0% | Q4 2025 | Feb 02, 2026 |
| ADAR1 Capital Management, LLC | History | No change | 10,000 | 20 | 0.0% | 0.0% | 55 | 0 | 0.0% | Q4 2025 | Feb 18, 2026 |
| WELLS FARGO & COMPANY/MN | History | Reduced | 4,000 | 8 | 0.0% | 0.0% | 56 | -1,610 | -28.7% | Q4 2025 | Feb 13, 2026 |
| BlackRock, Inc. | History | No change | 3,945 | 7 | 0.0% | 0.0% | 57 | 0 | 0.0% | Q4 2025 | Feb 12, 2026 |
| Farther Finance Advisors, LLC | History | New | 1,000 | 2 | 0.0% | — | 60 | +1,000 | New | Q4 2025 | Jan 23, 2026 |
| Tower Research Capital LLC (TRC) | History | Added to | 1,211 | 2 | 0.0% | 0.0% | 58 | +318 | 35.61% | Q4 2025 | Feb 17, 2026 |
| Steward Partners Investment Advisory, LLC | History | No change | 1,300 | 2 | 0.0% | 0.0% | 59 | 0 | 0.0% | Q4 2025 | Feb 12, 2026 |
| PFS Partners, LLC | History | No change | 1,000 | 2 | 0.0% | 0.0% | 61 | 0 | 0.0% | Q4 2025 | Jan 16, 2026 |
| SBI Securities Co., Ltd. | History | Reduced | 515 | 1 | 0.0% | 0.0% | 62 | -37 | -6.7% | Q4 2025 | Feb 03, 2026 |
| Siren, L.L.C. | History | Closed out | 0 | 0 | — | 0.13% | — | -1,552,183 | -100.0% | Q3 2025 | Nov 13, 2025 |
| MACQUARIE GROUP LTD | History | Closed out | 0 | 0 | — | 0.0% | — | -620,000 | -100.0% | Q3 2025 | Nov 13, 2025 |
| Woodline Partners LP | History | Closed out | 0 | 0 | — | 0.0% | — | -92,140 | -100.0% | Q3 2025 | Nov 14, 2025 |
| CITIGROUP INC | History | Closed out | 0 | 0 | — | 0.0% | — | -22,724 | -100.0% | Q3 2025 | Nov 10, 2025 |
| Kestra Advisory Services, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -10,000 | -100.0% | Q3 2025 | Nov 14, 2025 |
| OSAIC HOLDINGS, INC. | History | Closed out | 0 | 0 | — | 0.0% | — | -6,000 | -100.0% | Q3 2025 | Nov 14, 2025 |
| JPMORGAN CHASE & CO | History | Reduced | 283 | 0 | — | — | — | -185 | -39.53% | Q4 2025 | Feb 11, 2026 |
| Activest Wealth Management | History | Closed out | 0 | 0 | — | — | — | -100 | -100.0% | Q3 2025 | Nov 03, 2025 |
| Rockefeller Capital Management L.P. | History | No change | 34 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Mar 16, 2026 |
| TD Waterhouse Canada Inc. | History | No change | 40 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Jan 27, 2026 |
| Medallion Wealth Advisors, LLC | History | No change | 10 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Apr 24, 2026 |