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Arcellx
ACLX

Overview Fund Activity

195 hedge funds and large institutions have $4.04B invested in Arcellx in 2025 Q1 according to their latest regulatory filings, with 25 funds opening new positions, 74 increasing their positions, 68 reducing their positions, and 39 closing their positions.

Holders
195
Holders Change
-15
Holders Change %
-7.14%
% of All Funds
2.65%
Holding in Top 10
14
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+16.67%
% of All Funds
0.19%
New
25
Increased
74
Reduced
68
Closed
39
Calls
$51.8M
Puts
$19.6M
Net Calls
+$32.2M
Net Calls Change
+$29.7M

Top Buyers

1
VPC
1
Vestal Point Capital
New York
$157M
2
T. Rowe Price Investment Management
2
T. Rowe Price Investment Management
Maryland
$109M
3
Citadel Advisors
3
Citadel Advisors
Florida
$47.6M
4
Vanguard Group
4
Vanguard Group
Pennsylvania
$261M
5
JPMorgan Chase & Co
5
JPMorgan Chase & Co
New York
$44.8M

Top Sellers

1
Fidelity Investments
1
Fidelity Investments
Massachusetts
$414M
2
PA
2
Perceptive Advisors
New York
$192M
3
Lord, Abbett & Co
3
Lord, Abbett & Co
New Jersey
$43.6M
4
T. Rowe Price Associates
4
T. Rowe Price Associates
Maryland
$121M
5
CAM
5
Cormorant Asset Management
Massachusetts
$68.9M
Name Market Value Shares Shares
Change 		Shares
Change %
DFCM
51
Dark Forest Capital Management
Puerto Rico
$4.66M 71,070 +55,003 +342%
CS
52
Candriam SCA
Luxembourg
$4.63M 70,538 -124,458 -64%
Renaissance Technologies
53
Renaissance Technologies
New York
$4.46M 68,000 +18,900 +38%
PC
54
Pier Capital
Connecticut
$4.46M 67,976 +67,976 New
PHP
55
Parkman Healthcare Partners
Connecticut
$4.42M 67,390 +22,898 +51%
First Trust Advisors
56
First Trust Advisors
Illinois
$4.41M 67,201 -66,996 -50%
CM
57
Caption Management
Oklahoma
$4.4M 67,069 +67,069 New
RhumbLine Advisers
58
RhumbLine Advisers
Massachusetts
$4.18M 63,751 +3,848 +6%
Swiss National Bank
59
Swiss National Bank
Switzerland
$4.13M 62,900 -500 -0.8%
Susquehanna International Group
60
Susquehanna International Group
Pennsylvania
$4.04M 61,623 +19,083 +45%
Rafferty Asset Management
61
Rafferty Asset Management
New York
$3.84M 58,507 -12,530 -18%
Ameriprise
62
Ameriprise
Minnesota
$3.64M 55,437 +45,266 +445%
American Century Companies
63
American Century Companies
Missouri
$3.56M 54,321 +24,875 +84%
AllianceBernstein
64
AllianceBernstein
Tennessee
$3.36M 51,295 +45 +0.1%
Millennium Management
65
Millennium Management
New York
$3.35M 51,056 +28,686 +128%
DC
66
Decheng Capital
California
$3.28M 50,000 -34,377 -41%
HS
67
HighVista Strategies
Massachusetts
$3.12M 47,496 +3,692 +8%
Federated Hermes
68
Federated Hermes
Pennsylvania
$3.03M 46,224 -109,870 -70%
EDRH
69
Edmond de Rothschild Holding
Switzerland
$2.98M 45,480 – –
RAM
70
Readystate Asset Management
Illinois
$2.96M 45,058 +45,058 New
GPP
71
Great Point Partners
Connecticut
$2.95M 45,000 +45,000 New
BNP Paribas Financial Markets
72
BNP Paribas Financial Markets
France
$2.91M 44,354 +24,389 +122%
HP
73
HealthInvest Partners
Sweden
$2.9M 44,171 +2,100 +5%
AI
74
Allostery Investments
Connecticut
$2.89M 44,000 +9,000 +26%
RPAM
75
Rhenman & Partners Asset Management
Sweden
$2.85M 43,500 – –
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