PROQR THRAPEUTICS N V (PRQR)
Institutional ownership reported to the SEC as of Q2 2026, across 31 quarters.
69
Reporting holders
$113.4M
Reported value
57.8%
Of shares outstanding
0.1%
Held as options
+2
Holder change
Institutions report 60,931,943 shares against 105,361,064 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end. Share count carried from an earlier filing (cy2025q4i).
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| ADAGE CAPITAL PARTNERS GP, L.L.C. | $16.8M | 9,015,897 | 0.02% | 31q | +44.2%+$5.1M |
| Aberdeen Group plc | $16.6M | 8,932,507 | 0.02% | 6q | +169.3%+$10.4M |
| Affinity Asset Advisors, LLC | $10.3M | 5,543,936 | 0.47% | 7q | +125.9%+$5.7M |
| Privium Fund Management B.V. | $10.3M | 5,520,024 | 1.89% | 19q | +1.0%+$98.3K |
| Ikarian Capital, LLC | $6.4M | 3,425,930 | 0.69% | 5q | +129.6%+$3.6M |
| Woodline Partners LP | $6.1M | 3,277,143 | 0.02% | new | NEW |
| HEIGHTS CAPITAL MANAGEMENT, INC | $5.1M | 2,762,430 | 1.19% | new | NEW |
| MORGAN STANLEY | $3.3M | 1,767,215 | 0.00% | 35q | +36.0%+$869.4K |
| SPHERA FUNDS MANAGEMENT LTD. | $3.3M | 1,757,458 | 0.43% | new | NEW |
| Kynam Capital Management, LP | $2.9M | 1,566,317 | 0.16% | 7q | HELD |
| DAFNA Capital Management LLC | $2.8M | 1,530,361 | 0.54% | 14q | -2.4%-$69.2K |
| Squadron Capital Management LLC | $2.8M | 1,511,496 | 0.87% | new | NEW |
| 683 Capital Management, LLC | $2.6M | 1,393,067 | 0.13% | new | NEW |
| CITADEL ADVISORS LLC | $2.2M | 1,184,314 | 0.00% | 11q | +68.4%+$894.6K |
| PLATINUM INVESTMENT MANAGEMENT LTD | $2.2M | 1,159,428 | 0.53% | 7q | -6.2%-$141.5K |
| TWO SIGMA INVESTMENTS, LP | $2.1M | 1,138,715 | 0.00% | 18q | +23.9%+$408.9K |
| Eversept Partners, LP | $1.9M | 1,022,265 | 0.10% | new | NEW |
| BOOTHBAY FUND MANAGEMENT, LLC | $1.8M | 948,736 | 0.02% | 15q | +167.0%+$1.1M |
| DIADEMA PARTNERS LP | $1.7M | 926,016 | 0.22% | 7q | +414.2%+$1.4M |
| UBS Group AG | $1.2M | 639,243 | 0.00% | 16q | +109.4%+$621.2K |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | $1.2M | 620,000 | 0.00% | 3q | HELD |
| M28 Capital Management LP | $1.1M | 599,793 | 2.37% | 18q | HELD |
| RAYMOND JAMES FINANCIAL INC | $1.1M | 571,073 | 0.00% | 7q | +4.6%+$46.5K |
| Palo Alto Investors LP | $1.1M | 566,421 | 0.05% | 4q | +200.0%+$702.4K |
| Lynx1 Capital Management LP | $969.8K | 521,413 | 0.07% | 3q | +661.3%+$842.4K |
| JANE STREET GROUP, LLC | $846.5K | 455,104 | 0.00% | 7q | +1267.1%+$784.6K |
| STEMPOINT CAPITAL LP | $801.8K | 431,054 | 0.14% | new | NEW |
| BNP PARIBAS FINANCIAL MARKETS | $512.7K | 275,631 | 0.00% | 17q | +59.9%+$192.1K |
| Monaco Asset Management SAM | $454.7K | 244,487 | 0.04% | 18q | -41.6%-$324.2K |
| Persistent Asset Partners Ltd | $439.8K | 236,454 | 0.13% | 6q | +413.3%+$354.1K |
| Burkehill Global Management, LP | $327.8K | 176,243 | 0.01% | new | NEW |
| MILLENNIUM MANAGEMENT LLC | $299.5K | 161,004 | 0.00% | 15q | -17.1%-$61.8K |
| FRANKLIN STREET ADVISORS INC /NC | $279.0K | 150,000 | 0.02% | 31q | HELD |
| DEUTSCHE BANK AG\ | $202.3K | 108,762 | 0.00% | 11q | HELD |
| OneDigital Investment Advisors LLC | $158.1K | 85,000 | 0.00% | 13q | HELD |
| Quadrature Capital Ltd | $157.7K | 84,806 | 0.00% | 4q | +604.7%+$135.4K |
| RFG Advisory, LLC | $119.0K | 64,000 | 0.00% | 10q | +236.8%+$83.7K |
| BANK OF AMERICA CORP /DE/ | $108.0K | 58,040 | 0.00% | 24q | -68.6%-$236.3K |
| GEODE CAPITAL MANAGEMENT, LLC | $107.9K | 57,997 | 0.00% | 31q | -31.7%-$50.1K |
| Point72 Asset Management, L.P. | $94.2K | 50,652 | 0.00% | 7q | -93.3%-$1.3M |
| Keating Financial Advisory Services, Inc. | $88.4K | 47,552 | 0.01% | 3q | +131.4%+$50.2K |
| Velan Capital Investment Management LP | $83.7K | 45,000 | 0.05% | 7q | HELD |
| GUGGENHEIM CAPITAL LLC | $74.3K | 39,954 | 0.00% | 3q | +44.5%+$22.9K |
| Steward Partners Investment Advisory, LLC | $65.5K | 35,241 | 0.00% | 7q | +2610.8%+$63.1K |
| SIMPLEX TRADING, LLC | $64.1K | 271 | 0.00% | new | NEW |
| Axiom Investment Management LLC | $57.7K | 31,000 | 0.04% | 2q | -6.1%-$3.7K |
| MOODY LYNN LIEBERSON & WALKER, LLC | $46.5K | 25,000 | 0.00% | 3q | HELD |
| Vanguard Personalized Indexing Management, LLC | $41.1K | 22,095 | 0.00% | 15q | +13.8%+$5.0K |
| Mariner, LLC | $37.5K | 20,169 | 0.00% | 15q | HELD |
| Verdad Advisers, LP | $35.5K | 19,100 | 0.03% | new | NEW |
| NANO CAP NEW MILLENNIUM GROWTH FUND L P | $32.5K | 17,500 | 0.03% | 3q | +75.0%+$13.9K |
| TWO SIGMA SECURITIES, LLC | $29.8K | 16,016 | 0.00% | new | NEW |
| Atom Investors LP | $24.4K | 13,107 | 0.00% | 18q | HELD |
| China Universal Asset Management Co., Ltd. | $23.2K | 12,500 | 0.00% | 2q | -37.5%-$13.9K |
| WETZEL INVESTMENT ADVISORS, INC. | $19.5K | 10,500 | 0.01% | new | NEW |
| TRUIST FINANCIAL CORP | $18.6K | 10,000 | 0.00% | 13q | HELD |
| ADAR1 Capital Management, LLC | $18.6K | 10,000 | 0.00% | 7q | HELD |
| WELLS FARGO & COMPANY/MN | $7.4K | 4,000 | 0.00% | 31q | -50.0%-$7.4K |
| BlackRock, Inc. | $7.3K | 3,945 | 0.00% | 8q | HELD |
| ROYAL BANK OF CANADA | $6.0K | 3,305 | 0.00% | new | NEW |
| Hilton Head Capital Partners, LLC | $2.6K | 1,404 | 0.00% | 2q | HELD |
| MERCER GLOBAL ADVISORS INC /ADV | $1.9K | 1,000 | 0.00% | new | NEW |
| Farther Finance Advisors, LLC | $1.9K | 1,000 | 0.00% | 3q | HELD |
| PFS Partners, LLC | $1.9K | 1,000 | 0.00% | 15q | HELD |
| SBI Securities Co., Ltd. | $958 | 515 | 0.00% | 7q | HELD |
| JPMORGAN CHASE & CO | $518 | 283 | 0.00% | 27q | HELD |
| GSA CAPITAL PARTNERS LLP | $323 | 173,844 | 0.02% | 2q | +52.2% |
| TD Waterhouse Canada Inc. | $70 | 40 | 0.00% | 8q | HELD |
| Virtu Financial LLC | $22 | 11,626 | 0.00% | new | NEW |
| Medallion Wealth Advisors, LLC | $19 | 10 | 0.00% | 7q | HELD |
| Caitong International Asset Management Co., Ltd | $7 | 4 | 0.00% | 2q | -96.7% |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-07-29 | 13D/A | Van Herk Investments B.V.with 8 co-filers | 10.9% |
| 2026-07-29 | 13G | Aberdeen Group plcwith 1 co-filers | 6.3% |
| 2026-07-24 | 13G/A | ELI LILLY & Co | 15.6% |
| 2026-07-15 | 13G/A | PATRICK JOHAN HENDRIK KROLwith 4 co-filers | 5.2% |
| 2026-06-30 | 13D/A | Van Herk Investments B.V.with 8 co-filers | 10.9% |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 69 | $113.4M | 60,931,943 | 14 | 24 | 12 | 0.1% |
| Q1 2026 | 67 | $56.7M | 34,976,113 | 8 | 15 | 15 | 0.0% |
| Q4 2025 | 66 | $75.2M | 37,155,466 | 7 | 23 | 11 | 0.2% |
| Q3 2025 | 65 | $80.0M | 37,543,194 | 7 | 13 | 12 | 0.0% |
| Q2 2025 | 61 | $82.4M | 40,405,459 | 4 | 15 | 19 | 0.1% |
| Q1 2025 | 64 | $54.8M | 41,122,789 | 6 | 18 | 18 | 0.1% |
| Q4 2024 | 75 | $117.6M | 44,231,313 | 34 | 17 | 6 | 0.4% |
| Q3 2024 | 45 | $32.1M | 17,200,808 | 4 | 8 | 13 | 2.5% |
| Q2 2024 | 45 | $28.6M | 17,130,239 | 4 | 3 | 15 | 0.9% |
| Q1 2024 | 43 | $40.1M | 17,301,567 | 4 | 9 | 11 | 1.3% |
| Q4 2023 | 42 | $37.0M | 18,309,839 | 6 | 5 | 10 | 0.5% |
| Q3 2023 | 41 | $24.1M | 18,466,697 | 3 | 5 | 10 | 0.2% |
| Q2 2023 | 45 | $33.9M | 20,702,918 | 6 | 11 | 7 | 1.1% |
| Q1 2023 | 48 | $44.9M | 20,467,423 | 13 | 14 | 5 | 3.0% |
| Q4 2022 | 39 | $59.4M | 16,199,887 | 13 | 7 | 9 | 2.1% |
| Q3 2022 | 47 | $15.9M | 21,242,386 | 10 | 7 | 18 | 0.3% |
| Q2 2022 | 49 | $17.3M | 22,131,799 | 8 | 14 | 13 | 0.6% |
| Q1 2022 | 63 | $30.6M | 31,901,457 | 21 | 17 | 16 | 5.7% |
| Q4 2021 | 75 | $366.3M | 45,484,328 | 17 | 24 | 23 | 0.3% |
| Q3 2021 | 67 | $336.8M | 39,831,678 | 13 | 26 | 15 | 1.0% |
| Q2 2021 | 63 | $260.8M | 38,480,836 | 20 | 14 | 15 | 0.5% |
| Q1 2021 | 64 | $290.9M | 43,322,291 | 26 | 23 | 9 | 1.6% |
| Q4 2020 | 48 | $111.0M | 26,413,704 | 14 | 7 | 14 | 0.1% |
| Q3 2020 | 43 | $134.2M | 28,012,743 | 6 | 10 | 16 | 0.0% |
| Q2 2020 | 44 | $177.2M | 29,108,107 | 6 | 17 | 11 | 0.1% |
| Q1 2020 | 45 | $161.3M | 29,336,360 | 6 | 13 | 18 | 0.1% |
| Q4 2019 | 52 | $299.4M | 30,203,259 | 20 | 20 | 9 | 0.0% |
| Q3 2019 | 49 | $124.8M | 21,662,689 | 5 | 16 | 12 | 0.0% |
| Q2 2019 | 55 | $215.0M | 23,627,842 | 9 | 14 | 18 | 0.0% |
| Q1 2019 | 56 | $339.7M | 24,486,964 | 10 | 16 | 16 | 2.0% |
| Q4 2018 | 58 | $364.8M | 23,123,819 | 4 | 1 | 1 | 0.0% |