Aclaris Therapeutics, Inc. - ACRS

Detailed investor-level table based on 13F positions.

Shareholders (13F)

Quarter: Q1 2026 · Compare: Q4 2025
13D/13G major owners: Ownership tab.
Methodology: Market value and % of portfolio use SEC reported VALUE ($000). For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received. Details.
Rows: 0
Investor History Status Shares held Market value ($000) % of portfolio Previous % Rank Change in shares % change in shares Source Date reported
BML Capital Management, LLC History No change 14,250,000 53,437 34.31% 37.08% 1 0 0.0% Q1 2026 May 05, 2026
Deep Track Capital, LP History New 9,345,000 35,043 0.57% 2 +9,345,000 New Q1 2026 May 15, 2026
BlackRock, Inc. History Added to 7,407,065 27,776 0.0% 0.0% 3 +602,224 8.85% Q1 2026 May 13, 2026
RA CAPITAL MANAGEMENT, L.P. History New 6,804,072 25,515 0.27% 4 +6,804,072 New Q1 2026 May 15, 2026
Vivo Capital, LLC History Reduced 6,666,666 24,999 2.08% 1.73% 5 -2,222,222 -25.0% Q1 2026 May 20, 2026
VANGUARD GROUP INC History No change 6,502,080 19,571 0.0% 0.0% 6 0 0.0% Q4 2025 Jan 29, 2026
VANGUARD CAPITAL MANAGEMENT LLC History New 5,167,469 19,378 0.0% 7 +5,167,469 New Q1 2026 May 15, 2026
Frazier Life Sciences Management, L.P. History New 4,925,374 18,470 0.48% 8 +4,925,374 New Q1 2026 May 15, 2026
Rock Springs Capital Management LP History Added to 4,472,650 16,772 0.99% 0.69% 9 +18,909 0.42% Q1 2026 May 15, 2026
Decheng Capital LLC History No change 4,041,736 15,156 2.29% 1.64% 10 0 0.0% Q1 2026 May 13, 2026
ADAGE CAPITAL PARTNERS GP, L.L.C. History Added to 3,871,000 14,516 0.02% 0.02% 11 +500,000 14.83% Q1 2026 May 15, 2026
BALYASNY ASSET MANAGEMENT L.P. History New 3,361,328 12,604 0.02% 12 +3,361,328 New Q1 2026 May 15, 2026
CITADEL ADVISORS LLC History Added to 2,818,019 10,567 0.0% 0.0% 13 +474,338 20.24% Q1 2026 May 15, 2026
MORGAN STANLEY History Reduced 2,746,302 10,298 0.0% 0.0% 14 -669,088 -19.59% Q1 2026 May 15, 2026
GEODE CAPITAL MANAGEMENT, LLC History Added to 2,423,691 9,091 0.0% 0.0% 15 +30,919 1.29% Q1 2026 May 15, 2026
STATE STREET CORP History Added to 2,008,746 7,532 0.0% 0.0% 16 +502,343 33.35% Q1 2026 May 15, 2026
BRAIDWELL LP History New 1,699,116 6,371 0.21% 17 +1,699,116 New Q1 2026 May 15, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC History New 1,656,066 6,210 0.0% 18 +1,656,066 New Q1 2026 May 08, 2026
Palo Alto Investors LP History Added to 1,613,430 6,050 0.93% 0.66% 19 +46,590 2.97% Q1 2026 May 15, 2026
ACADIAN ASSET MANAGEMENT LLC History Reduced 1,539,791 5,770 0.01% 0.01% 20 -582,608 -27.45% Q1 2026 May 13, 2026
Woodline Partners LP History Added to 1,485,623 5,571 0.02% 0.01% 21 +743,614 100.22% Q1 2026 May 15, 2026
Connor, Clark & Lunn Investment Management Ltd. History Reduced 1,418,360 5,318 0.01% 0.01% 22 -15,804 -1.1% Q1 2026 May 11, 2026
KOTLER KEVIN History No change 1,705,929 5,134 1.2% 1.2% 23 0 0.0% Q4 2025 Feb 17, 2026
Kalehua Capital Management LLC History New 1,337,556 5,015 4.23% 24 +1,337,556 New Q1 2026 May 15, 2026
DEUTSCHE BANK AG\ History Added to 997,850 3,741 0.0% 0.0% 25 +10,499 1.06% Q1 2026 May 06, 2026
Aldebaran Capital, LLC History Reduced 947,162 3,551 2.71% 2.58% 26 -7,100 -0.74% Q1 2026 May 07, 2026
D. E. Shaw & Co., Inc. History Reduced 900,804 3,378 0.0% 0.0% 27 -1,195,847 -57.04% Q1 2026 May 15, 2026
MILLENNIUM MANAGEMENT LLC History Reduced 756,127 2,835 0.0% 0.0% 28 -297,119 -28.21% Q1 2026 May 15, 2026
NORTHERN TRUST CORP History Added to 728,225 2,730 0.0% 0.0% 29 +63,967 9.63% Q1 2026 May 14, 2026
Three Bridge Wealth Advisors, LLC History No change 714,823 2,680 0.74% 0.57% 30 0 0.0% Q1 2026 May 12, 2026
MARSHALL WACE, LLP History Added to 712,984 2,673 0.0% 0.0% 31 +227,483 46.86% Q1 2026 May 14, 2026
VANGUARD FIDUCIARY TRUST CO History New 628,859 2,358 0.0% 32 +628,859 New Q1 2026 May 08, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLP History Reduced 600,430 2,251 0.0% 0.0% 33 -328,816 -35.39% Q1 2026 May 15, 2026
GOLDMAN SACHS GROUP INC History Reduced 588,691 2,207 0.0% 0.0% 34 -43,811 -6.93% Q1 2026 May 15, 2026
DIMENSIONAL FUND ADVISORS LP History Added to 511,461 1,914 0.0% 0.0% 35 +240,611 88.84% Q1 2026 May 07, 2026
RENAISSANCE TECHNOLOGIES LLC History Reduced 502,631 1,884 0.0% 0.01% 36 -622,700 -55.33% Q1 2026 May 14, 2026
PANAGORA ASSET MANAGEMENT INC History Added to 502,290 1,883 0.01% 0.0% 37 +434,100 636.6% Q1 2026 May 14, 2026
Monashee Investment Management LLC History New 500,000 1,875 1.02% 39 +500,000 New Q1 2026 May 13, 2026
Logos Global Management LP History Reduced 500,000 1,875 0.09% 0.11% 38 -100,000 -16.67% Q1 2026 May 15, 2026
JPMORGAN CHASE & CO History Reduced 486,633 1,698 0.0% 0.0% 40 -139,330 -22.26% Q1 2026 May 13, 2026
Aisling Capital Management LP History No change 434,455 1,629 0.34% 0.27% 41 0 0.0% Q1 2026 May 05, 2026
Bollard Group LLC History Reduced 431,631 1,619 0.05% 0.06% 42 -372,814 -46.34% Q1 2026 May 14, 2026
TWO SIGMA INVESTMENTS, LP History Reduced 395,637 1,483 0.0% 0.0% 43 -178,576 -31.1% Q1 2026 May 15, 2026
MPM BioImpact LLC History New 391,918 1,469 0.11% 44 +391,918 New Q1 2026 May 15, 2026
SUPERSTRING CAPITAL MANAGEMENT LP History New 366,490 1,374 0.98% 45 +366,490 New Q1 2026 May 14, 2026
BRIDGEWAY CAPITAL MANAGEMENT, LLC History No change 330,019 1,237 0.02% 0.02% 46 0 0.0% Q1 2026 May 15, 2026
Russell Investments Group, Ltd. History Added to 308,165 1,155 0.0% 0.0% 47 +298,380 3049.36% Q1 2026 May 08, 2026
HighTower Advisors, LLC History Reduced 305,836 1,146 0.0% 0.0% 48 -112 -0.04% Q1 2026 May 05, 2026
RAYMOND JAMES FINANCIAL INC History Reduced 266,448 999 0.0% 0.0% 49 -3,236 -1.2% Q1 2026 May 14, 2026
CHARLES SCHWAB INVESTMENT MANAGEMENT INC History Reduced 260,990 978 0.0% 0.0% 50 -23,614 -8.3% Q1 2026 May 15, 2026
WELLINGTON MANAGEMENT GROUP LLP History Reduced 257,156 964 0.0% 0.0% 51 -7,203 -2.72% Q1 2026 May 15, 2026
SEI INVESTMENTS CO History New 217,154 814 0.0% 52 +217,154 New Q1 2026 May 13, 2026
Invesco Ltd. History Added to 214,935 806 0.0% 0.0% 53 +5,032 2.4% Q1 2026 May 12, 2026
MACKENZIE FINANCIAL CORP History New 213,405 800 0.0% 54 +213,405 New Q1 2026 May 13, 2026
Bank of New York Mellon Corp History Added to 207,024 776 0.0% 0.0% 55 +3,507 1.72% Q1 2026 May 05, 2026
UBS Group AG History Reduced 206,814 775 0.0% 0.0% 56 -155,724 -42.95% Q1 2026 May 05, 2026
TWO SIGMA ADVISERS, LP History No change 255,400 768 0.0% 0.0% 57 0 0.0% Q4 2025 Feb 17, 2026
Verdad Advisers, LP History New 197,042 738 0.83% 58 +197,042 New Q1 2026 May 15, 2026
Qube Research & Technologies Ltd History Reduced 194,510 729 0.0% 0.0% 59 -252,665 -56.5% Q1 2026 May 15, 2026
Informed Momentum Co LLC History New 178,378 668 0.08% 60 +178,378 New Q1 2026 May 13, 2026
Assenagon Asset Management S.A. History Added to 177,283 664 0.0% 0.0% 61 +22,729 14.71% Q1 2026 Apr 20, 2026
FMR LLC History Added to 176,353 661 0.0% 0.0% 62 +130,546 284.99% Q1 2026 May 15, 2026
PRICE T ROWE ASSOCIATES INC /MD/ History Added to 156,725 588 0.0% 0.0% 63 +16,558 11.81% Q1 2026 May 15, 2026
Creative Planning History Added to 152,088 570 0.0% 0.0% 64 +100,917 197.22% Q1 2026 May 12, 2026
ADAR1 Capital Management, LLC History Reduced 132,426 496 0.03% 0.14% 65 -481,560 -78.43% Q1 2026 May 15, 2026
AMERICAN CENTURY COMPANIES INC History Added to 118,702 445 0.0% 0.0% 66 +41,134 53.03% Q1 2026 May 15, 2026
Nuveen, LLC History Reduced 118,020 442 0.0% 0.0% 67 -119,810 -50.38% Q1 2026 Apr 30, 2026
ALPS ADVISORS INC History Added to 98,175 368 0.0% 0.0% 68 +9,209 10.35% Q1 2026 May 08, 2026
XTX Topco Ltd History Reduced 97,774 366 0.01% 0.01% 69 -15,138 -13.41% Q1 2026 May 15, 2026
JANE STREET GROUP, LLC History Added to 92,200 345 0.0% 0.0% 70 +64,984 238.77% Q1 2026 May 12, 2026
BANK OF AMERICA CORP /DE/ History Added to 79,539 298 0.0% 0.0% 71 +15,018 23.28% Q1 2026 May 15, 2026
RHUMBLINE ADVISERS History Added to 75,401 282 0.0% 0.0% 72 +3,597 5.01% Q1 2026 May 12, 2026
Quadrature Capital Ltd History Added to 72,540 272 0.0% 0.0% 73 +14,870 25.78% Q1 2026 May 15, 2026
AQR CAPITAL MANAGEMENT LLC History Reduced 72,408 271 0.0% 0.0% 74 -31,384 -30.24% Q1 2026 May 15, 2026
Vanguard Global Advisers, LLC History New 68,793 257 0.0% 75 +68,793 New Q1 2026 May 08, 2026
CenterBook Partners LP History New 66,598 249 0.01% 76 +66,598 New Q1 2026 May 05, 2026
MetLife Investment Management, LLC History Added to 43,870 164 0.0% 0.0% 77 +18,273 71.39% Q1 2026 May 14, 2026
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. History Added to 43,589 163 0.0% 0.0% 78 +1,021 2.4% Q1 2026 May 15, 2026
Cambridge Investment Research Advisors, Inc. History No change 41,873 157 0.0% 0.0% 79 0 0.0% Q1 2026 Apr 30, 2026
Susquehanna Portfolio Strategies, LLC History No change 39,701 148 0.0% 0.0% 80 0 0.0% Q1 2026 May 15, 2026
WELLS FARGO & COMPANY/MN History Reduced 36,262 135 0.0% 0.0% 81 -68,203 -65.29% Q1 2026 May 11, 2026
EntryPoint Capital, LLC History New 33,007 123 0.04% 82 +33,007 New Q1 2026 May 14, 2026
SIMPLEX TRADING, LLC History Added to 30,716 115 0.0% 0.0% 83 +13,048 73.85% Q1 2026 May 14, 2026
Diversified Trust Co History New 29,455 110 0.0% 84 +29,455 New Q1 2026 Apr 16, 2026
NEW YORK STATE COMMON RETIREMENT FUND History No change 27,300 102 0.0% 0.0% 85 0 0.0% Q1 2026 May 06, 2026
SG Americas Securities, LLC History Added to 26,767 100 0.0% 0.0% 86 +11,344 73.55% Q1 2026 Apr 16, 2026
MANUFACTURERS LIFE INSURANCE COMPANY, THE History Reduced 25,398 95 0.0% 0.0% 87 -3,600 -12.41% Q1 2026 May 15, 2026
Vontobel Holding Ltd. History Reduced 25,000 93 0.0% 0.0% 88 -1,000 -3.85% Q1 2026 May 08, 2026
TWO SIGMA SECURITIES, LLC History Added to 22,471 84 0.01% 0.0% 89 +10,926 94.64% Q1 2026 May 15, 2026
Neuberger Berman Group LLC History Added to 22,062 82 0.0% 0.0% 90 +3,107 16.39% Q1 2026 May 14, 2026
BARCLAYS PLC History Reduced 21,508 80 0.0% 0.0% 91 -121,906 -85.0% Q1 2026 May 14, 2026
China Universal Asset Management Co., Ltd. History Added to 21,401 80 0.01% 0.0% 93 +3,746 21.22% Q1 2026 Apr 27, 2026
BNP PARIBAS FINANCIAL MARKETS History Reduced 21,445 80 0.0% 0.0% 92 -71 -0.33% Q1 2026 May 12, 2026
Police & Firemen's Retirement System of New Jersey History No change 19,700 73 0.0% 0.0% 94 0 0.0% Q1 2026 Apr 29, 2026
INTECH INVESTMENT MANAGEMENT LLC History Reduced 19,196 71 0.0% 0.0% 95 -27,450 -58.85% Q1 2026 May 08, 2026
ProShare Advisors LLC History Reduced 18,696 70 0.0% 0.0% 96 -2,857 -13.26% Q1 2026 Apr 24, 2026
Engineers Gate Manager LP History New 18,294 68 0.0% 97 +18,294 New Q1 2026 May 15, 2026
CRA Financial Services, LLC History No change 17,782 66 0.01% 0.01% 98 0 0.0% Q1 2026 Apr 09, 2026
Vanguard Personalized Indexing Management, LLC History New 17,558 65 0.0% 100 +17,558 New Q1 2026 May 14, 2026
CIBC Asset Management Inc History No change 17,428 65 0.0% 0.0% 99 0 0.0% Q1 2026 May 12, 2026
ExodusPoint Capital Management, LP History New 16,895 63 0.0% 102 +16,895 New Q1 2026 May 14, 2026
Hudson Bay Capital Management LP History New 16,820 63 0.0% 101 +16,820 New Q1 2026 May 13, 2026
VOYA INVESTMENT MANAGEMENT LLC History Reduced 16,311 61 0.0% 0.0% 103 -937 -5.43% Q1 2026 May 12, 2026
STRS OHIO History New 16,000 60 0.0% 104 +16,000 New Q1 2026 Apr 24, 2026
PRUDENTIAL FINANCIAL INC History New 13,380 50 0.0% 105 +13,380 New Q1 2026 May 13, 2026
IMC-Chicago, LLC History New 13,100 49 0.0% 106 +13,100 New Q1 2026 May 05, 2026
ALLIANCEBERNSTEIN L.P. History No change 15,200 45 0.0% 0.0% 107 0 0.0% Q1 2026 May 15, 2026
VICTORY CAPITAL MANAGEMENT INC History Added to 11,749 44 0.0% 0.0% 108 +1,098 10.31% Q1 2026 May 15, 2026
Jefferies Financial Group Inc. History Reduced 11,000 41 0.0% 0.0% 109 -2 -0.02% Q1 2026 May 07, 2026
MERCER GLOBAL ADVISORS INC /ADV History Added to 10,595 39 0.0% 0.0% 110 +428 4.21% Q1 2026 May 15, 2026
M&T BANK CORP History New 10,088 37 0.0% 111 +10,088 New Q1 2026 May 12, 2026
Ameritas Investment Partners, Inc. History No change 9,267 34 0.0% 0.0% 112 0 0.0% Q1 2026 May 13, 2026
GROUP ONE TRADING LLC History Reduced 8,000 30 0.0% 0.0% 114 -12,433 -60.85% Q1 2026 May 13, 2026
Legal & General Group Plc History No change 8,242 30 0.0% 0.0% 113 0 0.0% Q1 2026 May 08, 2026
CITIGROUP INC History Reduced 7,826 29 0.0% 0.0% 115 -33,804 -81.2% Q1 2026 May 11, 2026
Mirae Asset Global Investments Co., Ltd. History Added to 6,290 23 0.0% 0.0% 116 +1,025 19.47% Q1 2026 May 04, 2026
Rockefeller Capital Management L.P. History Added to 6,112 22 0.0% 0.0% 117 +4,886 398.53% Q1 2026 May 14, 2026
Zurcher Kantonalbank (Zurich Cantonalbank) History New 5,006 18 0.0% 119 +5,006 New Q1 2026 May 15, 2026
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM History Reduced 4,965 18 0.0% 0.0% 118 -684 -12.11% Q1 2026 May 15, 2026
Tower Research Capital LLC (TRC) History Added to 3,867 14 0.0% 0.0% 120 +117 3.12% Q1 2026 May 15, 2026
MBM WEALTH CONSULTANTS, LLC History New 3,198 11 0.0% 122 +3,198 New Q1 2026 Apr 20, 2026
Sterling Capital Management LLC History Reduced 3,037 11 0.0% 0.0% 121 -2,251 -42.57% Q1 2026 Apr 22, 2026
GF FUND MANAGEMENT CO. LTD. History Added to 2,419 9 0.0% 0.0% 123 +291 13.67% Q1 2026 Apr 15, 2026
PNC FINANCIAL SERVICES GROUP, INC. History No change 2,070 7 0.0% 0.0% 124 0 0.0% Q1 2026 May 08, 2026
CWM, LLC History Added to 1,358 5 0.0% 0.0% 125 +978 257.37% Q1 2026 May 14, 2026
GAMMA Investing LLC History Added to 1,020 3 0.0% 126 +791 345.41% Q1 2026 Apr 06, 2026
Motiv8 Investments LLC History No change 1,000 3 0.0% 0.0% 127 0 0.0% Q4 2025 Feb 13, 2026
Capital Advisors, Ltd. LLC History No change 454 2 0.0% 0.0% 128 0 0.0% Q1 2026 Apr 16, 2026
Parallel Advisors, LLC History New 357 1 0.0% 135 +357 New Q1 2026 Jun 02, 2026
Farther Finance Advisors, LLC History Reduced 347 1 0.0% 0.0% 132 -51 -12.81% Q1 2026 Apr 07, 2026
EverSource Wealth Advisors, LLC History Added to 477 1 0.0% 0.0% 131 +19 4.15% Q1 2026 May 15, 2026
NISA INVESTMENT ADVISORS, LLC History No change 318 1 0.0% 129 0 0.0% Q1 2026 Apr 30, 2026
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO History No change 500 1 0.0% 0.0% 130 0 0.0% Q1 2026 May 07, 2026
Smartleaf Asset Management LLC History No change 376 1 0.0% 0.0% 133 0 0.0% Q1 2026 May 15, 2026
Cornerstone Financial Management LLC History No change 270 1 0.0% 134 0 0.0% Q1 2026 May 08, 2026
AMERIPRISE FINANCIAL INC History Closed out 0 0 0.0% -318,426 -100.0% Q1 2026 May 15, 2026
Seven Fleet Capital Management LP History Closed out 0 0 0.22% -107,419 -100.0% Q1 2026 Jun 04, 2026
Point72 Asset Management, L.P. History Closed out 0 0 0.0% -87,175 -100.0% Q1 2026 May 15, 2026
Man Group plc History Closed out 0 0 0.0% -42,435 -100.0% Q1 2026 May 15, 2026
Valeo Financial Advisors, LLC History Closed out 0 0 0.0% -27,540 -100.0% Q1 2026 May 08, 2026
AXQ CAPITAL, LP History Closed out 0 0 0.02% -24,186 -100.0% Q1 2026 May 13, 2026
Persistent Asset Partners Ltd History Closed out 0 0 0.03% -22,259 -100.0% Q1 2026 May 12, 2026
Mariner, LLC History Closed out 0 0 0.0% -16,670 -100.0% Q1 2026 May 13, 2026
R Squared Ltd History Closed out 0 0 0.02% -12,408 -100.0% Q1 2026 Apr 29, 2026
AMALGAMATED BANK History Closed out 0 0 0.0% -2,883 -100.0% Q1 2026 May 08, 2026
ROYAL BANK OF CANADA History Reduced 88 0 0.0% -2,530 -96.64% Q1 2026 May 15, 2026
OSAIC HOLDINGS, INC. History Closed out 0 0 0.0% -730 -100.0% Q1 2026 May 15, 2026
Quattro Advisors LLC History Closed out 0 0 0.0% -372 -100.0% Q1 2026 May 14, 2026
Allworth Financial LP History New 49 0 +49 New Q1 2026 May 14, 2026
Root Financial Partners, LLC History New 27 0 +27 New Q1 2026 Apr 24, 2026
Arax Advisory Partners History Closed out 0 0 -19 -100.0% Q1 2026 May 13, 2026
SBI Securities Co., Ltd. History Reduced 67 0 -12 -15.19% Q1 2026 Apr 27, 2026
ROTHSCHILD INVESTMENT LLC History Added to 9 0 +1 12.5% Q1 2026 May 07, 2026
MAI Capital Management History New 1 0 +1 New Q1 2026 May 15, 2026
Truvestments Capital LLC History No change 150 0 0 0.0% Q1 2026 May 13, 2026
Essential Partners LLC History No change 5 0 0 0.0% Q1 2026 May 21, 2026