$PRQR

$1.41 +$0.07 (5.22%) Close

$PRQR Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 105.4M shares outstanding

Who owns PRQR?

By type of holder

Institutions 54.9% Insiders 0.0% Everyone else 45.1%

Concentration Top 10 holders own 53.3%

Van Herk Investments B.V. 14.6% · Adage Capital Partners GP, L.L.C. 8.6%

Institutional ownership

54.9%

+21.7 pts vs last qtr

Institutional holders

0 vs last qtr

Net shares bought

+22.9M

by institutions in Q2 2026

New / sold out

11 / 11

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Aberdeen Group plc +5.6M
Woodline Partners LP NEW +3.3M

Biggest sellers in Q2 2026

Sio Capital Management, LLC SOLD OUT −2.0M
Point72 Asset Management, L.P. −705.2K

Who is planning to sell?

No insider has filed a notice of proposed sale (Form 144) for ProQR Therapeutics NV in the last 12 months.

Is your stake being diluted?

There are not yet two fiscal years of reported share counts for ProQR Therapeutics NV.

How patient are the owners?

Institutional shares by how long they've been held

5+ years19% 3–5 years19% 1–3 years42% Under 1 year20%

Quarterly turnover

45.6%

of institutional shares changed hands

Top 10 managers, median time held

1.5 years

Super Investors

Investment managers reporting PRQR on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
AC Adage Capital Partners GP, L.L.C.	9.0M	8.56%	+2.8M (+44.2%)	≤2021	0.0%
Shares held by quarter Peak holding9.6M (Q4'24) Change over 8 quarters+5.4M Share of the company8.560% Adage Capital Partners GP, L.L.C.'s full portfolio →
AG Aberdeen Group plc	8.9M	8.48%	+5.6M (+169.3%)	2025	0.0%
Shares held by quarter Peak holding8.9M (Q2'26) Change over 8 quarters+8.9M Share of the company8.480% Aberdeen Group plc's full portfolio →

Adage Capital Partners GP, L.L.C.

9.0M

% of company

8.56%

Change vs last qtr

+2.8M (+44.2%)

Held since

≤2021

Aberdeen Group plc

8.9M

% of company

8.48%

Change vs last qtr

+5.6M (+169.3%)

Held since

2025

28 more super investors behind a free account

See every manager holding ProQR Therapeutics NV, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting PRQR on Form N-PORT; together they hold 0.1% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
IN Invesco NASDAQ Future Gen 200 ETF Invesco Exchange-Traded Fund Trust II	$76.4K	48.3K	0.05%	0.40%	May 31, 2026
TM Tiff Multi-Asset Fund TIFF Multi-Asset Fund	$41.2K	22.1K	0.02%	0.00%	June 30, 2026

Invesco NASDAQ Future Gen 200 ETF

Invesco Exchange-Traded Fund Trust II

Position value

$76.4K

% of company

0.05%

% of the fund

0.40%

As of

May 31, 2026

Tiff Multi-Asset Fund

TIFF Multi-Asset Fund

Position value

$41.2K

% of company

0.02%

% of the fund

0.00%

As of

June 30, 2026

2 more funds behind a free account

See every fund holding ProQR Therapeutics NV and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
VH Van Herk Investments B.V. 5%+ holder 13D · 10.9%	15.4M	14.60%	—	—	—	—
This holder reports through Schedule 13D/G, not a quarterly 13F. Share of the company14.600% Disclosed stake13D · 10.9% View the 13D/G filing →

Van Herk Investments B.V.

5%+ holder13D · 10.9%

15.4M

% of company

14.60%

Change vs last qtr

—

Held since

—

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