Company · Ownership research

ProQR Therapeutics N.V. PRQR

CIK 0001612940 · CUSIP N71542109

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP N71542109 (PRQR), not CUSIP N71542909 (PRQR), CUSIP N71542959 (PRQR), and does not merge CUSIPs.

This page lists the top 20 of 79 rows by value; the complete set is available through the API.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	ADAGE CAPITAL PARTNERS GP, L.L.C. CIK 1165408 · View history	$25.45M 9,602,280 shares	0.04%	+5.98M(+164.90%)Added	SEC filing ↗ Feb 14, 2025	▾
02	Privium Fund Management B.V. CIK 1795097 · View history	$13.21M 4,985,633 shares	2.99%	-646.75K(-11.50%)Reduced	SEC filing ↗ Feb 11, 2025	▾
03	Woodline Partners LP CIK 1784547 · View history	$9.43M 3,557,001 shares	0.06%	+3.56MNew	SEC filing ↗ Feb 14, 2025	▾
04	MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history	$7.49M 2,827,280 shares	0.01%	+2.68M(+1,864.40%)Added	SEC filing ↗ Feb 14, 2025	▾
05	Affinity Asset Advisors, LLC CIK 1773195 · View history	$7.49M 2,825,000 shares	1.17%	+2.83MNew	SEC filing ↗ Feb 13, 2025	▾
06	UBS Group AG CIK 1610520 · View history	$6.12M 2,310,050 shares	0.00%	+2.31M(+79,556.90%)Added	SEC filing ↗ Feb 14, 2025	▾
07	Sio Capital Management, LLC CIK 1482416 · View history	$5.44M 2,054,593 shares	1.53%	+2.05MNew	SEC filing ↗ Feb 14, 2025	▾
08	Kynam Capital Management, LP CIK 1907884 · View history	$4.64M 1,750,000 shares	0.31%	+1.75MNew	SEC filing ↗ Feb 14, 2025	▾
09	Siren, L.L.C. CIK 2005245 · View history	$4.17M 1,575,000 shares	0.18%	+1.57MNew	SEC filing ↗ Feb 14, 2025	▾
10	DAFNA Capital Management LLC CIK 1389933 · View history	$4.15M 1,567,561 shares	1.06%	+661.98K(+73.10%)Added	SEC filing ↗ Feb 14, 2025	▾
11	PLATINUM INVESTMENT MANAGEMENT LTD CIK 1256071 · View history	$4.08M 1,538,247 shares	0.24%	+1.54MNew	SEC filing ↗ Feb 11, 2025	▾
12	Point72 Asset Management, L.P. CIK 1603466 · View history	$3.95M 1,491,275 shares	0.01%	+1.49MNew	SEC filing ↗ Feb 14, 2025	▾
13	ArrowMark Colorado Holdings LLC CIK 1483859 · View history	$3.13M 1,181,413 shares	0.04%	+1.18MNew	SEC filing ↗ Feb 14, 2025	▾
14	M28 Capital Management LP CIK 1807489 · View history	$2.70M 1,019,498 shares	2.65%	0(0.00%)Unchanged	SEC filing ↗ Feb 13, 2025	▾
15	MACQUARIE GROUP LTD CIK 1418333 · View history	$1.64M 620,000 shares	0.00%	0(0.00%)Unchanged	SEC filing ↗ Feb 14, 2025	▾
16	Altium Capital Management LLC CIK 1746382 · View history	$1.52M 575,000 shares	0.47%	+575.00KNew	SEC filing ↗ Feb 13, 2025	▾
17	MORGAN STANLEY CIK 895421 · Amended · View history	$1.29M 485,985 shares	0.00%	+211.53K(+77.10%)Added	SEC filing ↗ May 15, 2025	▾
18	Walleye Capital LLC CIK 1758720 · View history	$1.20M 451,303 shares	0.01%	+451.30KNew	SEC filing ↗ Feb 13, 2025	▾
19	NORTHERN TRUST CORP CIK 73124 · View history	$1.11M 417,398 shares	0.00%	+401.65K(+2,550.10%)Added	SEC filing ↗ Feb 14, 2025	▾
20	CITADEL ADVISORS LLC CIK 1423053 · View history	$1.08M 408,807 shares	0.00%	+321.83K(+370.00%)Added	SEC filing ↗ Feb 14, 2025	▾

Showing 20 / 79 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

Cancelled or null records excluded

Disclosed shares

44,409,030

Not deduplicated across managers

Disclosed value

$117.68M

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

ProQR Therapeutics N.V. · Q4 2024

Explore all 79 reporting institutions.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.