ArcellxACLX

13F holders, Q2 2024 (June 30)
167holders −16
20new positions
37sold out
5famous investors
$55.19avg. 13F price*

At the end of Q2 2024, 167 institutions reported holding Arcellx Inc. (ACLX) in their 13F filings, down 16 from Q1 2024. 20 opened new positions and 37 sold out. The largest holders were FMR LLC ($358.0M), Perceptive Advisors LLC ($214.7M) and Paradigm Biocapital Advisors LP ($212.4M). 5 famous investors held it, including Stanley Druckenmiller (0.1% of Duquesne Family Office's portfolio), Ron Baron (0.1% of Baron Capital (BAMCO)'s portfolio) and Joel Greenblatt (0.0% of Gotham Asset Management's portfolio).

Company
Arcellx Inc.
CUSIP
03940C100
Latest filing quarter
Q2 2026

History

Number of 13F holders

050100150200250 Q1 2024: 183Q1 2024Q2 2024: 167Q2 2024Q3 2024: 186Q3 2024Q4 2024: 211Q4 2024Q1 2025: 197Q1 2025Q2 2025: 202Q2 2025Q3 2025: 209Q3 2025Q4 2025: 218Q4 2025Q1 2026: 240Q1 2026Q2 2026: 2Q2 2026

Total Exit/New Position Q1 2024 → Q2 2024

InstitutionsTotal Value
New Positions20$105.0M
Exits37$33.6M

All 13F filers, Q1 2024 → Q2 2024: 6,371,409 shares bought and 3,167,206 shares sold, net +3,204,203 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 167 holders

FMR LLC 0.02% Add +20.3% 6,487,334 $358.0M
Perceptive Advisors LLC 5.18% Reduce -1.1% 3,889,739 $214.7M
Paradigm Biocapital Advisors LP 8.13% Add +0.8% 3,848,095 $212.4M
NEA Management Company, LLC 15.55% No change 3,745,262 $206.7M
BlackRock Inc. 0.00% Add +14.7% 3,516,364 $194.1M
SR One Capital Management, LP 40.55% No change 2,346,630 $129.5M
Vanguard Group Inc. 0.00% Add +3.0% 2,296,195 $126.7M
Janus Henderson Group PLC 0.06% Add +25.0% 1,902,618 $105.0M
State Street Corp. 0.00% Reduce -6.9% 1,755,664 $96.9M
T. Rowe Price Associates Inc. 0.01% Add +21.3% 1,630,690 $90.0M
Ra Capital Management, L.P. 1.17% New 1,604,014 $88.5M
Cormorant Asset Management, LP 4.89% Reduce -14.3% 1,525,000 $84.2M
Montanova Capital, LLC 3.42% Reduce -3.0% 1,516,254 $83.7M
T. Rowe Price Investment Management, Inc. 0.04% Add +19.4% 1,173,791 $64.8M
Geode Capital Management, LLC 0.00% Add +11.5% 935,186 $51.6M
Lord, Abbett & Co. LLC 0.16% Reduce -27.1% 873,844 $48.2M
Vestal Point Capital, LP 2.78% Add +575.0% 675,000 $37.3M
Morgan Stanley 0.00% Reduce -21.8% 545,077 $30.1M
Great Point Partners LLC 5.20% Add +64.0% 492,000 $27.2M
Affinity Asset Advisors, LLC 4.41% Add +53.3% 460,000 $25.4M
Samsara Biocapital, LLC 5.24% No change 453,641 $25.0M
Deutsche Bank AG 0.01% Reduce -0.3% 446,530 $24.6M
Northern Trust Corp. 0.00% Reduce -2.5% 350,580 $19.3M
Baron Capital (BAMCO) 0.05% Add +37.7% 342,760 $18.9M
Adage Capital Partners Gp, L.L.C. 0.03% Add +18.9% 323,468 $17.9M
Charles Schwab Investment Management Inc. 0.00% Add +11.3% 313,893 $17.3M
PFM Health Sciences, LP 0.96% Add +2.9% 311,980 $17.2M
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% Add +16.9% 310,382 $17.1M
Bank of America Corp. 0.00% Reduce -26.8% 303,406 $16.7M
Victory Capital Management Inc. 0.02% Add +20.4% 283,872 $15.7M
Stempoint Capital LP 4.56% Add +100.1% 280,709 $15.5M
Integral Health Asset Management, LLC 1.51% Add +7.8% 275,000 $15.2M
JPMorgan Chase & Co. 0.00% Reduce -52.6% 261,359 $14.4M
Goldman Sachs Group Inc. 0.00% Reduce -5.4% 258,167 $14.2M
Russell Investments Group, Ltd. 0.02% Add +20.6% 235,591 $13.0M
Voloridge Investment Management, LLC 0.05% Reduce -35.4% 234,728 $13.0M
Voya Investment Management LLC 0.01% Reduce -42.9% 218,287 $12.0M
Candriam S.C.A. 0.07% Reduce -1.4% 217,008 $12.0M
Cutter Capital Management, LP 3.15% Add +74.8% 187,000 $10.3M
Eagle Asset Management Inc. 0.05% Reduce -15.1% 190,604 $10.2M
Soleus Capital Management, L.P. 0.83% Add +13.8% 170,741 $9.4M
Parkman Healthcare Partners LLC 1.18% Add +0.2% 156,843 $8.7M
Bank of New York Mellon Corp 0.00% Add +21.6% 147,198 $8.1M
Qube Research & Technologies Ltd 0.01% Add +42.9% 144,636 $8.0M
TD Asset Management Inc 0.01% Add +36.9% 123,118 $6.8M
Nuveen Asset Management, LLC 0.00% Reduce -34.7% 121,911 $6.7M
Woodline Partners LP 0.06% Add +3.5% 107,699 $5.9M
Man Group plc 0.02% New 104,046 $5.7M
Rafferty Asset Management, LLC 0.02% Reduce -32.3% 85,812 $4.7M
Duquesne Family Office 0.15% No change 74,100 $4.1M
Manufacturers Life Insurance Company, The 0.00% Add +55.4% 73,332 $4.0M
Thrivent Financial for Lutherans 0.01% Reduce -5.2% 64,025 $3.5M
UBS Group AG 0.00% Reduce -38.6% 63,577 $3.5M
Swiss National Bank 0.00% Add +11.5% 62,900 $3.5M
Rhumbline Advisers 0.00% Add +14.3% 60,570 $3.3M
Superstring Capital Management LP 4.11% New 59,133 $3.3M
Franklin Resources Inc. 0.00% Add +4.3% 56,701 $3.1M
Alliancebernstein L.P. 0.00% Add +41.0% 55,811 $3.1M
Twinbeech Capital LP 0.06% Add +76.0% 53,585 $3.0M
Jane Street Group, LLC 0.00% Add +41.1% 52,015 $2.9M
HighVista Strategies LLC 1.03% Reduce -29.3% 51,040 $2.8M
Jacobs Levy Equity Management, Inc. 0.01% New 47,817 $2.6M
Acuta Capital Partners, LLC 1.96% Add +22.3% 42,200 $2.3M
MYDA Advisors LLC 0.71% Add +20.0% 42,000 $2.3M
Alps Advisors Inc. 0.02% Add +12.1% 41,722 $2.3M
Walleye Capital LLC 0.03% Reduce -56.3% 41,144 $2.3M
State of Wisconsin Investment Board 0.01% Add +47.1% 39,165 $2.2M
Susquehanna International Group, LLP 0.00% Add +7.0% 39,153 $2.2M
DekaBank Deutsche Girozentrale 0.00% No change 30,000 $2.1M
Barclays PLC 0.00% Reduce -5.6% 37,470 $2.1M
Principal Financial Group Inc. 0.00% Add +1.4% 37,352 $2.1M
Wexford Capital LP 0.51% Add +524.5% 36,464 $2.0M
Legal & General Group Plc 0.00% Add +20.6% 35,405 $2.0M
Algert Global LLC 0.06% Add +24.4% 35,211 $1.9M
Two Sigma Investments, LP 0.00% Reduce -81.8% 34,461 $1.9M
California State Teachers Retirement System 0.00% Add +8.5% 32,064 $1.8M
Moody Aldrich Partners LLC 0.29% Add +33.0% 27,337 $1.5M
Renaissance Technologies 0.00% New 27,072 $1.5M
MetLife Investment Management, LLC 0.01% Add +27.5% 24,981 $1.4M
Corebridge Financial, Inc. 0.01% — 23,189 $1.3M
Schonfeld Strategic Advisors LLC 0.01% Reduce -56.3% 23,148 $1.3M
Congress Asset Management Co. 0.01% Reduce -1.1% 22,982 $1.3M
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% — 22,755 $1.3M
Atle Fund Management AB 0.76% Add +28.6% 22,496 $1.2M
Connor, Clark & Lunn Investment Management Ltd. 0.01% Reduce -50.8% 22,492 $1.2M
Citigroup Inc. 0.00% Reduce -81.0% 21,892 $1.2M
Invesco Ltd. 0.00% Add +6.3% 21,498 $1.2M
Erste Asset Management GmbH 0.02% No change 21,000 $1.1M
Harbor Capital Advisors, Inc. 0.09% Add +8.3% 20,362 $1.1M
Martingale Asset Management L P 0.02% Reduce -11.9% 20,192 $1.1M
Wells Fargo & Company 0.00% Add +12.1% 19,995 $1.1M
New York State Common Retirement Fund 0.00% Add +11.3% 18,899 $1.0M
Wellington Management Group LLP 0.00% Add +15.9% 18,200 $1.0M
First Trust Advisors LP 0.00% Reduce -58.1% 16,894 $932K
AQR Capital Management 0.00% Add +38.9% 16,852 $930K
Allianz Asset Management GmbH 0.00% Reduce -15.6% 16,800 $927K
Profund Advisors LLC 0.03% Reduce -19.6% 16,096 $888K
Allspring Global Investments Holdings, LLC 0.00% Add +37.8% 15,928 $879K
Y-Intercept (Hong Kong) Ltd 0.05% Add +68.3% 15,859 $875K
Squarepoint Ops LLC 0.00% Reduce -86.9% 15,829 $874K
STRS Ohio 0.00% Add +23.6% 13,100 $723K
HighTower Advisors, LLC 0.00% Add +0.0% 12,445 $687K
Jasper Ridge Partners, L.P. 0.02% No change 11,820 $652K
State of New Jersey Common Pension Fund D 0.00% New 11,756 $649K
Ameriprise Financial Inc. 0.00% Reduce -20.6% 11,310 $624K
Engineers Gate Manager LP 0.01% Add +78.6% 11,228 $620K
NEOS Investment Management LLC 0.03% Add +265.6% 11,162 $616K
State Board of Administration of Florida Retirement System 0.00% New 10,850 $599K
Handelsbanken Fonder AB 0.00% New 10,300 $568K
Gotham Asset Management 0.01% Add +79.8% 9,450 $522K
LPL Financial LLC 0.00% Add +8.0% 9,124 $504K
Arizona State Retirement System 0.00% Add +14.0% 8,950 $494K
WINTON GROUP Ltd 0.03% New 8,761 $484K
ProShare Advisors LLC 0.00% Reduce -20.3% 8,441 $466K
High Net Worth Advisory Group LLC 0.13% No change 8,000 $442K
Teacher Retirement System of Texas 0.00% Add +10.5% 7,021 $387K
Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% Add +34.3% 6,811 $376K
China Universal Asset Management Co., Ltd. 0.05% Reduce -38.2% 6,287 $347K
Corton Capital Inc. 0.18% Add +101.4% 6,273 $346K
Federated Hermes, Inc. 0.00% Reduce -97.5% 5,733 $316K
Advisors Asset Management, Inc. 0.01% Add +30.5% 5,476 $302K
Two Sigma Advisers, LP 0.00% Reduce -89.0% 5,300 $293K
E Fund Management Co., Ltd. 0.02% Reduce -12.9% 5,212 $288K
Sei Investments Co. 0.00% Reduce -66.6% 4,956 $274K
Raymond James & Associates 0.00% Reduce -13.9% 4,914 $271K
Clough Capital Partners L P 0.03% New 4,800 $265K
US Bancorp \de 0.00% Add +208.8% 4,752 $262K
Bridgefront Capital, LLC 0.11% New 4,641 $256K
Tower Research Capital LLC (TRC) 0.00% Add +1071.5% 4,639 $256K
Royal Bank of Canada 0.00% Add +237.0% 4,347 $240K
Ameritas Investment Partners, Inc. 0.01% Add +6.4% 4,223 $233K
Farallon Capital Management, L.L.C. 0.00% No change 4,000 $221K
HSBC Holdings PLC 0.00% Reduce -21.4% 4,063 $218K
Integrated Wealth Concepts LLC 0.00% New 3,775 $208K
Mariner, LLC 0.00% Reduce -38.0% 3,765 $208K
Public Employees Retirement Association of Colorado 0.00% New 3,217 $178K
Exchange Traded Concepts, LLC 0.00% Reduce -23.7% 3,125 $172K
Virtus Advisers, LLC 0.04% Reduce -3.9% 1,623 $90K
Mirae Asset Global Investments Co., Ltd. 0.00% Reduce -91.4% 1,597 $86K
National Bank of Canada 0.00% Add +50.0% 1,500 $80K
Amalgamated Bank 0.00% Add +4.2% 1,347 $74K
State of Wyoming 0.01% Add +98.7% 1,250 $69K
Decheng Capital LLC 0.02% New 1,177 $65K
KBC Group NV 0.00% Add +51.8% 1,011 $56K
Nisa Investment Advisors, LLC 0.00% Add +8.6% 495 $27K
AlphaQuest LLC 0.00% New 494 $27K
Pacer Advisors, Inc. 0.00% Reduce -17.7% 488 $27K
Daiwa Securities Group Inc. 0.00% No change 176 $10K
Turim 21 Investimentos Ltda. 0.00% No change 179 $10K
GAMMA Investing LLC 0.00% Reduce -11.2% 135 $7K
ADAR1 Capital Management, LLC 0.00% New 100 $6K
Comerica Bank 0.00% Reduce -22.9% 81 $4K
Osaic Holdings, Inc. 0.00% Add +171.4% 76 $4K
PNC Financial Services Group, Inc. 0.00% Add +3.5% 59 $3K
Clearstead Advisors, LLC 0.00% New 54 $3K
Global Retirement Partners, LLC 0.00% New 40 $2K
Fortitude Family Office, LLC 0.00% No change 38 $2K
Cwm, LLC 0.00% Add +190.9% 32 $2K
Rothschild Investment LLC 0.00% Add +300.0% 20 $1K
Bell Investment Advisors, Inc 0.00% Add +100.0% 14 $773
Smartleaf Asset Management LLC 0.00% New 10 $541
Institutional & Family Asset Management, LLC 0.00% No change 8 $442
Farther Finance Advisors, LLC 0.00% No change 6 $322
Principal Securities, Inc. 0.00% No change 2 $110
TFC Financial Management, Inc. 0.00% New 1 $56
Lazard Asset Management LLC 0.00% Reduce -98.7% 24 $0
Covestor Ltd 0.00% No change 3 $0

"% of holder's portfolio" is ACLX's weight in each manager's 13F, not the share of Arcellx Inc. the manager owns.