PRQR — ProQR Therapeutics NV

Ownership history in Siren, L.L.C.  ·  4 quarters on record

This page tracks every 13F SEC filing in which Siren, L.L.C. reported a position in ProQR Therapeutics NV (PRQR). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.

Peak position
0.18% (2024 Q4)
Avg. % of fund
0.15%
First filed
2024 Q4
Last filed
2025 Q3
Quarters held
4
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q3 UNCHANGED 1,552,183 — 0% 0.13% $3.3M $2.13
2025 Q2 UNCHANGED 1,552,183 — 0% 0.16% $3.2M $2.04
2025 Q1 REDUCED 1,552,183 -22,817 -1.4% 0.12% $2.1M $1.33
2024 Q4 INITIATED 1,575,000 — — 0.18% $4.2M $2.65
% of Fund (quarterly)    PRQR price (monthly, adj. close)

Other funds also holding PRQR

As of 2025 Q4 — sorted by position size

Privium Fund Management B.V. 3Y 1.99% M28 Capital Management LP 3Y 1.5% DAFNA Capital Management LLC 3Y 7Y 0.74% Sio Capital Management, LLC 3Y 7Y 0.69% PLATINUM INVESTMENT MANAGEMENT LTD 3Y 7Y 0.58% Affinity Asset Advisors, LLC 3Y 0.28% Ikarian Capital, LLC 3Y 0.24% Kynam Capital Management, LP 3Y 0.2% Monaco Asset Management SAM 3Y 0.15% Palo Alto Investors LP 3Y 7Y 0.05%
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