Adicet Bio, Inc. - ACET

Detailed investor-level table based on 13F positions.

Shareholders (13F)

Quarter: Q4 2025 · Compare: Q3 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
ORBIMED ADVISORS LLC History Reduced 1,027,944 8,655 0.18% 0.22% 1 -10,419,196 -91.02% Q4 2025 Feb 17, 2026
RA CAPITAL MANAGEMENT, L.P. History Reduced 948,249 7,984 0.08% 0.08% 2 -6,592,751 -87.43% Q4 2025 Feb 17, 2026
FRANKLIN RESOURCES INC History New 626,571 5,275 0.0% 3 +626,571 New Q4 2025 Feb 11, 2026
Woodline Partners LP History New 625,000 5,262 0.02% 4 +625,000 New Q4 2025 Feb 17, 2026
VANGUARD GROUP INC History Reduced 291,277 2,452 0.0% 0.0% 5 -2,981,245 -91.1% Q4 2025 Jan 29, 2026
ADAGE CAPITAL PARTNERS GP, L.L.C. History New 274,375 2,310 0.0% 6 +274,375 New Q4 2025 Feb 17, 2026
Prosight Management, LP History New 250,244 2,107 0.44% 7 +250,244 New Q4 2025 Feb 13, 2026
RENAISSANCE TECHNOLOGIES LLC History Reduced 242,945 2,045 0.0% 0.0% 8 -1,586,004 -86.72% Q4 2025 Feb 12, 2026
GOLDMAN SACHS GROUP INC History Reduced 234,510 1,974 0.0% 0.0% 9 -3,517,107 -93.75% Q4 2025 Mar 25, 2026
Stonepine Capital Management, LLC History New 220,011 1,852 1.35% 10 +220,011 New Q4 2025 Feb 13, 2026
Alyeska Investment Group, L.P. History Reduced 203,799 1,715 0.0% 0.0% 11 -451,866 -68.92% Q4 2025 Feb 13, 2026
Carlyle Group Inc. History Reduced 184,295 1,544 0.01% 0.06% 12 -2,764,423 -93.75% Q4 2025 Feb 13, 2026
ACADIAN ASSET MANAGEMENT LLC History Reduced 181,395 1,525 0.0% 0.0% 13 -2,084,096 -91.99% Q4 2025 Feb 10, 2026
NEXTBio Capital Management LP History New 157,827 1,328 0.78% 14 +157,827 New Q4 2025 Feb 13, 2026
TWO SIGMA INVESTMENTS, LP History Reduced 144,796 1,219 0.0% 0.0% 15 -709,772 -83.06% Q4 2025 Feb 17, 2026
ADAR1 Capital Management, LLC History New 128,646 1,083 0.08% 16 +128,646 New Q4 2025 Feb 18, 2026
TWO SIGMA ADVISERS, LP History Reduced 111,336 937 0.0% 0.0% 17 -669,646 -85.74% Q4 2025 Feb 17, 2026
CITADEL ADVISORS LLC History Reduced 107,814 907 0.0% 0.0% 18 -476,134 -81.54% Q4 2025 Feb 17, 2026
DAFNA Capital Management LLC History New 93,812 789 0.18% 19 +93,812 New Q4 2025 Feb 17, 2026
GEODE CAPITAL MANAGEMENT, LLC History Reduced 88,856 748 0.0% 0.0% 20 -617,478 -87.42% Q4 2025 Feb 09, 2026
Burkehill Global Management, LP History New 62,500 526 0.03% 21 +62,500 New Q4 2025 Feb 17, 2026
REGENERON PHARMACEUTICALS, INC. History Reduced 60,511 509 1.51% 0.11% 22 -907,672 -93.75% Q4 2025 Feb 06, 2026
LUMINUS MANAGEMENT LLC History New 59,558 501 0.44% 23 +59,558 New Q4 2025 Feb 17, 2026
BRIDGEWAY CAPITAL MANAGEMENT, LLC History Reduced 56,350 474 0.01% 0.02% 24 -845,250 -93.75% Q4 2025 Feb 17, 2026
Squarepoint Ops LLC History Added to 55,723 469 0.0% 0.0% 25 +9,296 20.02% Q4 2025 Feb 13, 2026
RBF Capital, LLC History Reduced 38,582 324 0.01% 0.02% 26 -578,737 -93.75% Q4 2025 Feb 17, 2026
BlackRock, Inc. History Reduced 36,585 308 0.0% 0.0% 27 -548,792 -93.75% Q4 2025 Feb 12, 2026
Maven Securities LTD History New 31,250 263 0.01% 28 +31,250 New Q4 2025 Feb 13, 2026
STATE STREET CORP History Reduced 25,896 218 0.0% 0.0% 29 -218,290 -89.39% Q4 2025 Feb 13, 2026
BARCLAYS PLC History Reduced 25,000 210 0.0% 0.0% 30 -275,000 -91.67% Q4 2025 Feb 13, 2026
Rangeley Capital, LLC History Reduced 25,001 210 0.17% 0.05% 31 -49,999 -66.67% Q4 2025 Feb 17, 2026
JOHNSON & JOHNSON History Reduced 22,779 191 0.03% 0.06% 32 -341,693 -93.75% Q4 2025 Mar 18, 2026
XTX Topco Ltd History Reduced 18,610 156 0.0% 0.0% 33 -39,529 -67.99% Q4 2025 Feb 17, 2026
GSA CAPITAL PARTNERS LLP History New 17,763 150 0.01% 34 +17,763 New Q4 2025 Feb 06, 2026
NORTHERN TRUST CORP History Reduced 14,067 118 0.0% 0.0% 35 -126,306 -89.98% Q4 2025 Feb 17, 2026
TANG CAPITAL MANAGEMENT LLC History Reduced 6,158 51 0.0% 0.26% 36 -8,217,454 -99.93% Q4 2025 Feb 17, 2026
FNY Investment Advisers, LLC History New 6,100 51 0.01% 37 +6,100 New Q4 2025 Jan 16, 2026
ROYAL BANK OF CANADA History New 5,449 46 0.0% 38 +5,449 New Q4 2025 Feb 17, 2026
UBS Group AG History Reduced 3,797 31 0.0% 0.0% 39 -17,641 -82.29% Q4 2025 Jan 29, 2026
MORGAN STANLEY History Reduced 3,040 25 0.0% 0.0% 40 -70,642 -95.87% Q4 2025 Feb 13, 2026
BANK OF AMERICA CORP /DE/ History Reduced 1,288 10 0.0% 0.0% 41 -19,319 -93.75% Q4 2025 Feb 17, 2026
Tower Research Capital LLC (TRC) History Reduced 1,072 9 0.0% 0.0% 42 -3,920 -78.53% Q4 2025 Feb 17, 2026
HOLLENCREST CAPITAL MANAGEMENT History Reduced 250 2 0.0% 0.0% 43 -1,750 -87.5% Q4 2025 Feb 12, 2026
MILLENNIUM MANAGEMENT LLC History Closed out 0 0 0.0% -565,953 -100.0% Q3 2025 Nov 14, 2025
Schonfeld Strategic Advisors LLC History Closed out 0 0 0.0% -479,108 -100.0% Q3 2025 Nov 14, 2025
WEALTHEDGE INVESTMENT ADVISORS, LLC History Closed out 0 0 0.09% -300,054 -100.0% Q3 2025 Nov 12, 2025
JANE STREET GROUP, LLC History Closed out 0 0 0.0% -186,200 -100.0% Q3 2025 Nov 14, 2025
Vontobel Holding Ltd. History Closed out 0 0 0.0% -80,000 -100.0% Q3 2025 Oct 15, 2025
Virtu Financial LLC History Closed out 0 0 0.0% -79,916 -100.0% Q3 2025 Nov 14, 2025
DIMENSIONAL FUND ADVISORS LP History Closed out 0 0 0.0% -52,963 -100.0% Q3 2025 Nov 12, 2025
MARSHALL WACE, LLP History Closed out 0 0 0.0% -51,733 -100.0% Q3 2025 Nov 13, 2025
SUSQUEHANNA INTERNATIONAL GROUP, LLP History Closed out 0 0 0.0% -40,370 -100.0% Q3 2025 Nov 14, 2025
Abacus Planning Group, Inc. History Closed out 0 0 0.0% -36,764 -100.0% Q3 2025 Oct 22, 2025
TWO SIGMA SECURITIES, LLC History Closed out 0 0 0.0% -25,274 -100.0% Q3 2025 Nov 14, 2025
Qube Research & Technologies Ltd History Closed out 0 0 0.0% -20,257 -100.0% Q3 2025 Nov 14, 2025
HRT FINANCIAL LP History Closed out 0 0 0.0% -18,627 -100.0% Q3 2025 Nov 14, 2025
Mariner, LLC History Closed out 0 0 0.0% -14,850 -100.0% Q3 2025 Nov 14, 2025
RAYMOND JAMES FINANCIAL INC History Closed out 0 0 0.0% -13,265 -100.0% Q3 2025 Nov 14, 2025
TOTH FINANCIAL ADVISORY CORP History Closed out 0 0 0.0% -1,600 -100.0% Q3 2025 Oct 09, 2025
BNP PARIBAS FINANCIAL MARKETS History Reduced 50 0 -846 -94.42% Q4 2025 Feb 10, 2026
SBI Securities Co., Ltd. History Reduced 19 0 -808 -97.7% Q4 2025 Feb 03, 2026
JPMORGAN CHASE & CO History Reduced 12 0 -759 -98.44% Q4 2025 Feb 11, 2026
FMR LLC History Reduced 34 0 -742 -95.62% Q4 2025 Feb 17, 2026
Advisory Services Network, LLC History Closed out 0 0 -316 -100.0% Q3 2025 Nov 18, 2025
CITIGROUP INC History Closed out 0 0 -166 -100.0% Q3 2025 Nov 10, 2025
SIMPLEX TRADING, LLC History New 87 0 +87 New Q4 2025 Feb 11, 2026
OSAIC HOLDINGS, INC. History Closed out 0 0 -10 -100.0% Q3 2025 Nov 14, 2025
DANSKE BANK A/S History New 1 0 +1 New Q4 2025 Feb 02, 2026