Institutional Ownership
Proqr Thrapeutics N V
CUSIP N71542109SHS EUROQ1 2026
13D / 13G Filings
43
Schedule 13D/13G on record
Beneficial Filers
17
Distinct reporting persons
Largest Stake
16.6%
Max % of class reported
Institutional Holders
69
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
43 filings · latest Feb 6, 2026
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Feb 6, 2026 | Van Herk Investments B.V. | 13D/A | 14.6% | — | SEC |
| 2 | Jan 20, 2026 | Stichting Aescap Life Sciences | 13G | 5.2% | 5.53M | SEC |
| 3 | Sep 30, 2025 | Van Herk Investments B.V. | 13D/A | 13.6% | — | SEC |
| 4 | Sep 4, 2025 | Van Herk Investments B.V. | 13D/A | 12.6% | — | SEC |
| 5 | Aug 20, 2025 | Van Herk Investments B.V. | 13D/A | 11.6% | — | SEC |
| 6 | Aug 12, 2025 | Adage Capital Management, L.P. | 13G/A | 6.3% | 6.60M | SEC |
| 7 | May 28, 2025 | Van Herk Investments B.V. | 13D | 10.9% | — | SEC |
| 8 | May 12, 2025 | Adage Capital Management, L.P. | 13G/A | 7.7% | 8.10M | SEC |
| 9 | Feb 14, 2025 | Van Herk Investments B.V. | 13G/A | 10.9% | 11.46M | SEC |
| 10 | Feb 12, 2025 | Adage Capital Management, L.P. | 13G | 9.3% | 9.60M | SEC |
33 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Proqr Thrapeutics N V.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Adage Capital Partners Gp, L.L.C. | 6.25M | $10.13M |
| 2 | Privium Fund Management B.V. | 5.47M | $8.86M |
| 3 | Aberdeen Group PLC | 3.32M | $5.37M |
| 4 | Affinity Asset Advisors, LLC | 2.45M | $3.98M |
| 5 | Sio Capital Management, LLC | 1.95M | $3.17M |
| 6 | Dafna Capital Management LLC | 1.57M | $2.54M |
| 7 | Kynam Capital Management, LP | 1.57M | $2.54M |
| 8 | Ikarian Capital, LLC | 1.49M | $2.42M |
| 9 | Morgan Stanley | 1.30M | $2.11M |
| 10 | Platinum Investment Management Ltd | 1.24M | $2.00M |