RA CAPITAL MANAGEMENT, L.P.

Position in ACRS — Aclaris Therapeutics, Inc.

CIK 1346824 BOSTON, MA

Position in ACRS

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$67,304,807

+$41,789,537 QoQ

Shares Held

12,723,026

+87.0% QoQ

Ownership

8.64%

of shares outstanding

% of Portfolio

0.59%

of 13F equity value

Holder Rank

of 149 holders

Holding Since

Mar 2022

11 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Healthcare · as of Jun 30, 2026

RA CAPITAL MANAGEMENT, L.P. holds $11,082,969,028 across 75 Biotechnology names. ACRS ranks #31 (0.6% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ASND	Ascendis Pharma A/S	10,281,496	$2,742,280,613
2	PBLS	Parabilis Medicines, Inc.	28,933,371	$791,906,364
3	RYTM	Rhythm Pharmaceuticals, Inc.	6,666,837	$740,218,912
4	PCVX	Vaxcyte, Inc.	11,474,599	$667,018,439
5	SION	Sionna Therapeutics, Inc.	9,905,045	$435,722,929
6	TYRA	Tyra Biosciences, Inc.	12,198,625	$389,624,082
7	EWTX	Edgewise Therapeutics, Inc.	8,392,730	$340,996,619
8	NAMS	NewAmsterdam Pharma Co N.V.	9,883,524	$330,779,298

12 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$67,304,807	12,723,026	—	Shares	Sole	2026-08-14
2026-06-30	$67,304,807	12,723,026	+87.0%	Shares	Sole	2026-08-14
2026-03-31	$25,515,270	6,804,072	+45.8%	Shares	Sole	2026-05-15
2025-03-31	$7,140,000	4,666,667	0.0%	Shares	Sole	2025-05-15
2024-12-31	$11,573,334	4,666,667	+6.1%	Shares	Sole	2025-02-14
2023-09-30	$30,129,403	4,398,453	0.0%	Shares	Sole	2023-11-14
2023-06-30	$45,611,957	4,398,453	0.0%	Shares	Sole	2023-08-14
2023-03-31	$35,583,484	4,398,453	0.0%	Shares	Sole	2023-05-15
2022-12-31	$69,275,634	4,398,453	0.0%	Shares	Sole	2023-02-14
2022-09-30	$69,231,650	4,398,453	0.0%	Shares	Sole	2022-11-14
2022-06-30	$61,402,403	4,398,453	+142.0%	Shares	Sole	2022-08-15
2022-03-31	$31,339,009	1,817,808	—	Shares	Sole	2022-05-16
No filing history on record for this holder in this stock.