ProQR Therapeutics N.V. (PRQR) Institutional Ownership Changes & 13F Activity
ProQR Therapeutics N.V. (PRQR). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Woodline Partners Lp, Affinity Asset Advisors, Llc, Adage Capital Partners Gp, L.L.C., Heights Capital Management, Inc, and Ikarian Capital, Llc.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Citadel Advisors Llc | Buy | +480,991 | +68.4% | 1,184,314 | $2.20M | Q2 2026 | Sep 02, 2026 |
| Woodline Partners Lp | Buy | +3,277,143 | — | 3,277,143 | $6.10M | Q2 2026 | Aug 14, 2026 |
| Adage Capital Partners Gp, L.L.C. | Buy | +2,762,430 | +44.2% | 9,015,897 | $16.77M | Q2 2026 | Aug 14, 2026 |
| Heights Capital Management, Inc | Buy | +2,762,430 | — | 2,762,430 | $5.14M | Q2 2026 | Aug 14, 2026 |
| Ikarian Capital, Llc | Buy | +1,933,701 | +129.6% | 3,425,930 | $6.37M | Q2 2026 | Aug 14, 2026 |
| Sphera Funds Management Ltd. | Buy | +1,757,458 | — | 1,757,458 | $3.27M | Q2 2026 | Aug 14, 2026 |
| Squadron Capital Management Llc | Buy | +1,511,496 | — | 1,511,496 | $2.81M | Q2 2026 | Aug 14, 2026 |
| 683 Capital Management, Llc | Buy | +1,393,067 | — | 1,393,067 | $2.59M | Q2 2026 | Aug 14, 2026 |
| Eversept Partners, Lp | Buy | +1,022,265 | — | 1,022,265 | $1.90M | Q2 2026 | Aug 14, 2026 |
| Diadema Partners Lp | Buy | +745,933 | +414.2% | 926,016 | $1.72M | Q2 2026 | Aug 14, 2026 |
| Point72 Asset Management, L.P. | Sell | -705,190 | -93.3% | 50,652 | $94.21K | Q2 2026 | Aug 14, 2026 |
| Boothbay Fund Management, Llc | Buy | +593,453 | +167.0% | 948,736 | $1.76M | Q2 2026 | Aug 14, 2026 |
| Stempoint Capital Lp | Buy | +431,054 | — | 431,054 | $801.76K | Q2 2026 | Aug 14, 2026 |
| Jane Street Group, Llc | Buy | +421,815 | +1267.1% | 455,104 | $846.49K | Q2 2026 | Aug 14, 2026 |
| Two Sigma Investments, Lp | Buy | +219,858 | +23.9% | 1,138,715 | $2.12M | Q2 2026 | Aug 14, 2026 |
| Burkehill Global Management, Lp | Buy | +176,243 | — | 176,243 | $327.81K | Q2 2026 | Aug 14, 2026 |
| Bank Of America Corp | Sell | -127,070 | -68.6% | 58,040 | $107.95K | Q2 2026 | Aug 14, 2026 |
| Dafna Capital Management Llc | Sell | -37,200 | -2.4% | 1,530,361 | $2.85M | Q2 2026 | Aug 14, 2026 |
| Millennium Management Llc | Sell | -33,242 | -17.1% | 161,004 | $299.47K | Q2 2026 | Aug 14, 2026 |
| Raymond James Financial Inc | Buy | +24,994 | +4.6% | 571,073 | $1.06M | Q2 2026 | Aug 14, 2026 |
| Verdad Advisers, Lp | Buy | +19,100 | — | 19,100 | $35.53K | Q2 2026 | Aug 14, 2026 |
| Two Sigma Securities, Llc | Buy | +16,016 | — | 16,016 | $29.79K | Q2 2026 | Aug 14, 2026 |
| Nano Cap New Millennium Growth Fund L P | Buy | +7,500 | +75.0% | 17,500 | $32.55K | Q2 2026 | Aug 14, 2026 |
| Royal Bank Of Canada | Buy | +2,997 | +973.1% | 3,305 | $6.00K | Q2 2026 | Aug 14, 2026 |
| Affinity Asset Advisors, Llc | Buy | +3,089,658 | +125.9% | 5,543,936 | $10.31M | Q2 2026 | Aug 13, 2026 |
| Morgan Stanley | Buy | +467,440 | +36.0% | 1,767,215 | $3.29M | Q2 2026 | Aug 13, 2026 |
| Lynx1 Capital Management Lp | Buy | +452,927 | +661.3% | 521,413 | $969.83K | Q2 2026 | Aug 13, 2026 |
| Ubs Group Ag | Buy | +333,979 | +109.4% | 639,243 | $1.19M | Q2 2026 | Aug 13, 2026 |
| Bnp Paribas Financial Markets | Buy | +103,282 | +59.9% | 275,631 | $512.67K | Q2 2026 | Aug 13, 2026 |
| Platinum Investment Management Ltd | Sell | -76,086 | -6.2% | 1,159,428 | $2.16M | Q2 2026 | Aug 13, 2026 |
Frequently asked questions about PRQR activity
Which institutional owners are buying PRQR?
Institutional owners buying PRQR include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in PRQR activity?
"Buy" means an investor increased their reported position in PRQR compared to the prior reporting period. This reflects growing exposure to ProQR Therapeutics N.V. (PRQR) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in PRQR increasing?
Institutional interest in PRQR can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.