ProQR Therapeutics N.V. - Ordinary Shares, nominal value Euro 0.04 per share (PRQR)

Q: What does CUSIP N71542109 represent in this 13F holders report?

CUSIP N71542109 is the security identifier for PRQR - ProQR Therapeutics N.V. - Ordinary Shares, nominal value Euro 0.04 per share used to aggregate holder disclosures.

Q: How many institutions held PRQR - ProQR Therapeutics N.V. - Ordinary Shares, nominal value Euro 0.04 per share in Q2 2023?

50 institutional investors reported PRQR - ProQR Therapeutics N.V. - Ordinary Shares, nominal value Euro 0.04 per share for Q2 2023. Use the holders table for investor-level position and value details.

CUSIP: N71542109

Q2 2023 13F Holders as of 30 Jun 2023

Security type / class: Equity / Ordinary Shares, nominal value Euro 0.04 per share
Total 13F shares: 21,135,686
Total 13F value: $34,237,327
Share change: -1,196,307
Put/Call ratio: 10%
SEC-reported price per share: $1.62
Number of holders: 50
Value change: -$2,196,851
Number of buys: 19
Number of sells: 21
Shares outstanding: 141,139,908

Security key

N71542109

Report period

Q2 2023

Institutions

Top holders

PRQR full security history Ownership snapshot Full 13F holder table Newer quarter: Q2 2026 ProQR Therapeutics N.V. SEC filings ProQR Therapeutics N.V. company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP N71542109

Newer quarter: Q2 2026

Recent filing periods:

Q2 2026

Ownership snapshot

Top reported holders of PRQR - ProQR Therapeutics N.V. - Ordinary Shares, nominal value Euro 0.04 per share (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

Privium Fund Management B.V.

Disclosed value leader

Privium Fund Management B.V.

Comparable rows

15/15

Latest evidence

31 Mar 2023

13F Lead comparable stake: 3.8% Showing 1-6 of 15 holder rows.

Quick read

Privium Fund Management B.V. leads the comparable SEC ownership view at 3.8%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Privium Fund Management B.V.'s linked filing trail.

Comparable ownership Top 5

Privium Fund Management B.V. 3.8%

ADAGE CAPITAL PARTNERS GP, L.L.C. 2.6%

EcoR1 Capital, LLC 2.1%

M28 Capital Management LP 1.4%

MILLENNIUM MANAGEMENT LLC 0.93%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
Privium Fund Management B.V.	13F Company 13F	3.8%	$11,383,670 5,344,446 shares	—	31 Mar 2023
ADAGE CAPITAL PARTNERS GP, L.L.C.	13F Company 13F	2.6%	$7,722,245 3,625,467 shares	—	31 Mar 2023
EcoR1 Capital, LLC	13F Company 13F	2.1%	$6,182,783 2,902,715 shares	—	31 Mar 2023
M28 Capital Management LP	13F Company 13F	1.4%	$4,069,578 1,910,600 shares	—	31 Mar 2023
MILLENNIUM MANAGEMENT LLC	13F Company 13F	0.93%	$2,791,000 1,310,406 shares	—	31 Mar 2023
DAFNA Capital Management LLC	13F Company 13F	0.67%	$2,003,440 940,582 shares	—	31 Mar 2023

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q2 2023

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

21,135,686

Rows available

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q2 2023 vs Q1 2023 Across Filers

Q1 2023 holders

Q2 2023 holders

Holder diff

-4

Investor	Q1 2023 Shares	Q2 2023 Shares	Share Diff	Share Chg %	Q1 2023 value	Q2 2023 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend