Aclaris Therapeutics ACRS Institutional Ownership

NASDAQ ACRS

$3.83 +0.02 (+0.52%)

At close: Oct 22, 2026 · 4:00 PM EDT

Institutions by Trading Activity

149 Institutions

Increased 94 63.1%

Unchanged 23 15.4%

Reduced 32 21.5%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

83.47%

▲+5.62 pp QoQ

Shares Held by Institutions

119.14Mn

of 142.74Mn outstanding

▲+9.59% QoQ

Shares Outstanding

142.74Mn

23.60Mn held outside 13F filers

Institutional Investors

149

filed 13F for Jun 2026

▲+13 vs prior quarter

Net Shares Added (QoQ)

+10.43Mn

accumulated since last quarter

Value of Holdings

$453.93Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Updated Oct 11, 2026

Aclaris Therapeutics, Inc. (NASDAQ:ACRS) appeared in the 13F filings of 149 institutional investors for the quarter ended June 30, 2026.

Collectively, these holders controlled 83.47% of Aclaris Therapeutics' outstanding shares in Q2 2026, up from 77.85% in Q1 2026.
Total holdings of Aclaris Therapeutics shares rose 9.59% from Q1 2026, and the number of holders rose 61.96% from Q2 2025.
Of the 149 holders, 94 added to their positions, 32 reduced their stakes and 23 left their positions unchanged in Q2 2026.
Combined, institutional investors held 119.14Mn shares of ACRS as of Q2 2026, up 10.43Mn from the prior quarter and up 33.32Mn from a year earlier.
Ra Capital Management, L.P. held the largest position in ACRS at 12.72Mn shares as of June 30, 2026, or 8.91% of shares outstanding.
Holders that added the most shares of Aclaris Therapeutics in Q2 2026 were Ra Capital Management, L.P. (+5.92Mn shares), BlackRock, Inc. (+2.63Mn shares), State Street Corp (+1.25Mn shares), PanAgora Asset Management Inc (+853.86K shares) and Geode Capital Management, LLC (+766.37K shares).
Holders that trimmed the most shares of Aclaris Therapeutics in Q2 2026 while keeping a position were Morgan Stanley (-2.61Mn shares), BML Capital Management, LLC (-2.27Mn shares), Balyasny Asset Management L.P. (-1.34Mn shares), Citadel Advisors LLC (-487.24K shares) and D. E. Shaw & Co., Inc. (-486.31K shares).
According to Business Quant data, the leading holders of ACRS for Q2 2026 were Ra Capital Management, L.P. (12.72Mn shares), BML Capital Management, LLC (11.97Mn shares), BlackRock, Inc. (10.04Mn shares), Deep Track Capital, LP (9.35Mn shares), Vivo Capital, LLC (6.69Mn shares), Vanguard Capital Management LLC (5.82Mn shares), Frazier Life Sciences Management, L.P. (4.93Mn shares), Rock Springs Capital Management LP (4.33Mn shares), Adage Capital Partners GP, L.L.C. (4.07Mn shares) and Decheng Capital LLC (4.04Mn shares).

Form 13F Holdings

149 Institutional Holders

Report period 30 Jun, 2026

Total shares held 119.14Mn

Of outstanding 83.47%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	RA CAPITAL MANAGEMENT, L.P.	0001346824	12,723,026	8.91%	▲5,918,954	+86.99%	$67.30Mn
2	BML Capital Management, LLC	0001616824	11,975,000	8.39%	▼2,275,000	-15.96%	$63.35Mn
3	BlackRock, Inc.	0002012383	10,037,008	7.03%	▲2,629,943	+35.51%	$53.10Mn
4	Deep Track Capital, LP	0001856083	9,345,000	6.55%	0	0.00%	$49.44Mn
5	Vivo Capital, LLC	0001674712	6,694,637	4.69%	▲27,971	+0.42%	$35.41Mn
6	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	5,817,866	4.08%	▲650,397	+12.59%	$30.78Mn
7	Frazier Life Sciences Management, L.P.	0001892134	4,925,374	3.45%	0	0.00%	$26.06Mn
8	Rock Springs Capital Management LP	0001595725	4,330,532	3.03%	▼142,118	-3.18%	$22.91Mn
9	ADAGE CAPITAL PARTNERS GP, L.L.C.	0001165408	4,071,000	2.85%	▲200,000	+5.17%	$21.54Mn
10	Decheng Capital LLC	0002010850	4,041,736	2.83%	0	0.00%	$21.38Mn
11	State Street Corp	0000093751	3,255,340	2.28%	▲1,246,594	+62.06%	$17.22Mn
12	GEODE CAPITAL MANAGEMENT, LLC	0001214717	3,190,058	2.23%	▲766,367	+31.62%	$16.88Mn
13	BRAIDWELL LP	0001920938	2,142,348	1.50%	▲443,232	+26.09%	$11.33Mn
14	BALYASNY ASSET MANAGEMENT L.P.	0001218710	2,023,470	1.42%	▼1,337,858	-39.80%	$10.70Mn
15	SILVERARC CAPITAL MANAGEMENT, LLC	0001816307	1,946,482	1.36%	▲1,946,482	0.00%	$10.30Mn
16	Kalehua Capital Management LLC	0002106181	1,832,365	1.28%	▲494,809	+36.99%	$9.69Mn
17	CITADEL ADVISORS LLC	0001423053	1,762,081	1.23%	▼487,238	-21.66%	$9.32Mn
18	Jones Hill Capital LP	0002102314	1,759,492	1.23%	▲1,759,492	0.00%	$9.31Mn
19	ACADIAN ASSET MANAGEMENT LLC	0000916542	1,641,472	1.15%	▲101,681	+6.60%	$8.68K
20	Palo Alto Investors LP	0001306923	1,613,430	1.13%	0	0.00%	$8.54Mn

Showing 1 to 20 of 149 holders