Aclaris Therapeutics Inc

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Aclaris Therapeutics Inc
TickerACRS
CIK #0001557746
CUSIP00461U105
SectorLife Sciences - Pharmaceutical Preparations
AddressSuite 400, 101 Lindenwood Drive, Malvern, PA 19355
Source [EDGAR]
CIK Filing 2011 - 2025
[0001557746] 10-K
[0001557746] 10-Q
[0001557746] 3
[0001557746] 4
[0001557746] 8-K
[0001557746] D
[0001557746] SC 13D
[0001557746] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
Vanguard Group Inc Aclaris Therapeutics Inc [2025-07-29] 0.0
BlackRock Inc Aclaris Therapeutics Inc [2025-07-17] 0.0
Millennium Management LLC Aclaris Therapeutics Inc [2025-05-05] 0.0
Adage Capital Management LP Aclaris Therapeutics Inc [2025-02-12] 0.0
Biosion Inc Aclaris Therapeutics Inc [2024-11-25] 0.5
Rock Springs Capital Management LP Aclaris Therapeutics Inc [2024-11-22] 6.32
Vivo Opportunity Fund Holdings LP Aclaris Therapeutics Inc [2024-11-21] 7.4
Millennium Management LLC Aclaris Therapeutics Inc [2024-02-14] 5.3
Vanguard Group Inc Aclaris Therapeutics Inc [2024-02-13] 6.67
BML Investment Partners LP Aclaris Therapeutics Inc [2024-01-16] 6.4
Millennium Management LLC Aclaris Therapeutics Inc [2023-12-11] 5.1
Tang Capital Partners LP Aclaris Therapeutics Inc [2023-11-24] 6.1
Citadel Advisors LLC Aclaris Therapeutics Inc [2023-09-05] 4.7
Biotechnology Value Fund L P Aclaris Therapeutics Inc [2023-03-16] 2.7
RA Capital Management LP Aclaris Therapeutics Inc [2022-04-25] 7.1
Venrock Healthcare Capital Partners II LP Aclaris Therapeutics Inc [2022-02-14] 7.5
BlackRock Inc Aclaris Therapeutics Inc [2022-02-04] 6.7
Wellington Management Group LLP Aclaris Therapeutics Inc [2022-02-04] 0.05
Biotechnology Value Fund L P Aclaris Therapeutics Inc [2022-01-24] 3.4
Foresite Capital Fund III LP Aclaris Therapeutics Inc [2020-10-27] 3.8
Rock Springs Capital Management LP Aclaris Therapeutics Inc [2020-10-26] 5.18
Adage Capital Partners GP LLC Aclaris Therapeutics Inc [2020-06-26] 5.97
Samsara Biocapital LP Aclaris Therapeutics Inc [2020-03-06] 5.2
EcoR1 Capital LLC Aclaris Therapeutics Inc [2020-02-14] 5.0
Renaissance Technologies LLC Aclaris Therapeutics Inc [2020-02-12] 6.72
MFN Partners Management LP Aclaris Therapeutics Inc [2019-10-31] 9.7
Arkin Moshe Aclaris Therapeutics Inc [2019-10-15] 8.02
Morgan Stanley Aclaris Therapeutics Inc [2019-08-29] 5.0
Rock Springs Capital Management LP Aclaris Therapeutics Inc [2019-07-29] 5.09
Man Group PLC Aclaris Therapeutics Inc [2019-07-09] 5.87
Broadfin Capital LLC Aclaris Therapeutics Inc [2019-01-29] 5.57
D E Shaw & Co LP Aclaris Therapeutics Inc [2018-11-01] 5.0
BlackRock Inc Aclaris Therapeutics Inc [2018-02-01] 7.1
Flynn James E Aclaris Therapeutics Inc [2017-10-10] 5.9
Perceptive Advisors LLC Aclaris Therapeutics Inc [2017-02-14] 5.88
Franklin Resources Inc Aclaris Therapeutics Inc [2016-02-03] 8.2
Vivo Ventures Fund VII LP Aclaris Therapeutics Inc [2015-10-20] 11.0
Sofinnova Venture Partners VIII LP Aclaris Therapeutics Inc [2015-10-16] 11.0
FMR LLC Aclaris Therapeutics Inc [2015-10-14] 0.0
RA Capital Management LLC Aclaris Therapeutics Inc [2015-10-13] 11.5
Form 3/4/5 Filer 2011 - 2025
Kolbeck Roland Wilhelm
Aclaris Therapeutics, Inc.
Milano Vincent
Schiff Andrew N
Mehra Anand
Gowen Maxine
Humphries William D.
Molineaux Christopher P.
Walker Neal
Hall Jesse Wayne
Balthaser Kevin
Monahan Joseph
Davis Hugh M.
Loerop James
Biosion, Inc.
Leonard Braden Michael
Reasons Bryan M.
Powell Andrew Kenneth William
Manion Douglas J.
Cawkwell Gail
Ruffo Frank
Ali-Jackson Kamil
Foresite Capital Management V, LLC
Foresite Capital Fund IV, L.P.
Foresite Capital Management III, LLC
Foresite Capital Management IV, LLC
Foresite Capital Fund III, L.P.
Foresite Capital Fund V, L.P.
Tananbaum James B.
Gordon David N.
Deerfield Mgmt L.P.
Flynn James E
Deerfield Special Situations Fund, L.P.
Deerfield Management Company LP
Deerfield Partners LP
Shanler Stuart
Powala Christopher
Fair Brett
Tullman Stephen A.
FMR LLC
Bierly Rick
Vivo Ventures VII LLC
Vivo Ventures VII Affiliates Fund, L.P.
Vivo Ventures Fund VII, L.P.
RA Capital Management LP
Kolchinsky Peter
RA Capital Healthcare Fund LP
Cha Albert
Powell Michael
Sofinnova Venture Partners VIII, L.P.
Healy James
Akkaraju Srinivas
Sofinnova Management VIII, L.L.C.
Form 13F Holdings
Firm Period DFND Voting Shares
BML Capital Management LLC [2025-06-30] SOLE 0 14,250,000
Adage Capital Partners GP LLC [2025-06-30] SOLE 9,627,304 9,627,304
Vivo Capital LLC [2025-06-30] SOLE 8,888,888 8,888,888
Vanguard Group Inc [2025-06-30] SOLE 0 6,578,815
BlackRock, Inc. [2025-06-30] SOLE 5,372,437 5,514,879
Rock Springs Capital Management LP [2025-06-30] SOLE 4,769,309 4,769,309
Decheng Capital LLC [2025-06-30] SOLE 4,041,736 4,041,736
Millennium Management LLC [2025-06-30] SOLE 3,837,380 3,837,380
Morgan Stanley [2025-06-30] DFND 3,538,511 3,540,192
D. E. Shaw & Co., Inc. [2025-06-30] DFND 2,800,282 2,800,282
Geode Capital Management LLC [2025-06-30] DFND 2,464,779 2,464,779
Marshall Wace LLP [2025-06-30] OTR 0 2,292,449
Logos Global Management LP [2025-06-30] SOLE 1,850,000 1,850,000
Renaissance Technologies LLC [2025-06-30] SOLE 1,464,778 1,464,778
Palo Alto Investors LP [2025-06-30] SOLE 1,390,028 1,390,028
Citadel Advisors LLC [2025-06-30] DFND 1,143,806 1,143,806
State Street Corp [2025-06-30] DFND 919,193 1,006,893
Deutsche Bank AG [2025-06-30] DFND 0 1,006,549
Aldebaran Capital LLC [2025-06-30] SOLE 993,698 993,698
Connor Clark & Lunn Investment Management Ltd [2025-06-30] SOLE 797,134 797,134
Two Sigma Advisers LP [2025-06-30] SOLE 734,600 764,300
Northern Trust Corp [2025-06-30] DFND 752,429 752,429
Two Sigma Investments LP [2025-06-30] SOLE 749,660 749,660
JPMorgan Chase & Co [2025-06-30] DFND 580,897 623,792
Qube Research & Technologies Ltd [2025-06-30] SOLE 509,350 509,350
Stonepine Capital Management LLC [2025-06-30] SOLE 491,300 491,300
Cantor Fitzgerald L P [2025-06-30] DFND 0 451,120
Bridgeway Capital Management LLC [2025-06-30] SOLE 443,319 443,319
FMR LLC [2025-06-30] DFND 431,123 442,247
Aisling Capital Management LP [2025-06-30] SOLE 434,455 434,455
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