Arcellx, Inc. (ACLX) is held by institutional investors who disclose positions via SEC 13F filings. View the full list of institutional holders on HoldingsIntel.

Are institutions buying or selling ACLX?

HoldingsIntel tracks quarter-over-quarter changes in institutional positions for Arcellx, Inc., showing new buyers, position increases, decreases, and exits with conviction-weighted sentiment.

What is the Smart Money Verdict on ACLX?

The Smart Money Verdict combines four independent signals (institutional 13F activity, insider trades, activist filings, and congressional trades) into a single assessment for Arcellx, Inc..

Is institutional money flowing into ACLX?

124 institutional investors hold Arcellx, Inc. (ACLX). View detailed buyer/seller breakdown on HoldingsIntel.

What do hedge funds think about ACLX?

Track institutional sentiment and conviction scores for Arcellx, Inc. (ACLX) including Smart Money Verdict and position changes on HoldingsIntel.

Arcellx, Inc.

ACLX·03940C100·US·equity·Healthcare - Biotechnology-Activist

ACLX (Arcellx, Inc.) is held by 124 institutional investors as of Q4 2025. Largest holders: VANGUARD GROUP INC ($266.1M), FMR LLC ($232.4M), BlackRock, Inc. ($231.4M). Net institutional sentiment: Mixed.

124

Holders

Avg rating(9 Elite)

$1.9B

Total Value

52% (137)

Fund Consensus

66 buying - 62 selling

Smart Money VerdictView all

33Negative MomentumStrong Convergence

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See how ACLX's score breaks down across 4 SEC sources

Held by 124 funds

9 elite

Who's Trading

ActivistThe Vanguard Group0.0%Mar 26, 2026

Activist

13F: Dec 31, 2025Insider & Congress: Updated regularly

Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
VANGUARD GROUP INC	Increased	4.1M(+4.5%)	$266.1M	0.0%	+44.93%	32
FMR LLC	Decreased	3.6M(-38.1%)	$232.4M	0.0%	+45.56%	0
BlackRock, Inc.	Increased	3.5M(+4.8%)	$231.4M	0.0%	+47.36%	32
STATE STREET CORP	Increased	2M(+31.0%)	$130.3M	0.0%	+89.36%	38
CITADEL ADVISORS LLC	Increased	1.5M(+46.9%)	$97.8M	0.0%	+56.78%	41
JPMORGAN CHASE & CO	Increased	1.5M(+64.8%)	$94.8M	0.0%	+69.67%	44
RA CAPITAL MANAGEMENT, L.P.	Decreased	1.3M(-58.3%)	$82.6M	0.8%	+73.80%	0
GEODE CAPITAL MANAGEMENT, LLC	Increased	958,057(+3.4%)	$62.5M	0.0%	+232.04%	31
JANUS HENDERSON GROUP PLC	Decreased	919,578(-9.3%)	$60M	0.0%	+252.20%	0
Woodline Partners LP	Increased	737,824(+205.7%)	$48.1M	0.2%	+80.43%	56
GOLDMAN SACHS GROUP INC	Increased	668,480(+49.1%)	$43.6M	0.0%	+68.32%	40
BAMCO INC /NY/	Increased	609,697(+10.8%)	$39.8M	0.1%	+80.16%	39
MORGAN STANLEY	Increased	518,404(+19.8%)	$33.8M	0.0%	+80.34%	34
BANK OF AMERICA CORP /DE/	Increased	427,769(+149.8%)	$27.9M	0.0%	+69.46%	46
AMERICAN CENTURY COMPANIES INC	Increased	419,080(+1.7%)	$27.3M	0.0%	+71.92%	29
Hudson Bay Capital Management LP	New	400,942	$26.1M	0.1%	+79.32%	40
Pictet Asset Management Holding SA	Decreased	342,612(-18.6%)	$22.3M	0.0%	+70.80%	0
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	Increased	339,813(+2.8%)	$22.2M	0.0%	+233.27%	29
Hood River Capital Management LLC	New	335,500	$21.9M	0.2%	+79.32%	47
Fisher Asset Management, LLC	New	322,855	$21.1M	0.0%	+79.32%	39
NORTHERN TRUST CORP	Decreased	321,793(-3.8%)	$21M	0.0%	+275.16%	0
UBS Group AG	Increased	316,612(+67.2%)	$20.6M	0.0%	+67.38%	42
TD ASSET MANAGEMENT INC	Increased	300,856(+29.3%)	$19.6M	0.0%	+71.70%	36
DEUTSCHE BANK AG\	Decreased	233,592(-41.5%)	$15.2M	0.0%	+69.32%	0
ExodusPoint Capital Management, LP	Increased	217,424(+2201.8%)	$14.2M	0.1%	+77.44%	54
WELLINGTON MANAGEMENT GROUP LLP	Decreased	214,776(-7.5%)	$14M	0.0%	+79.06%	0
BARCLAYS PLC	Increased	196,772(+82.8%)	$12.8M	0.0%	+78.74%	43
VOYA INVESTMENT MANAGEMENT LLC	Decreased	168,680(-31.8%)	$11M	0.0%	+75.34%	0
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	Decreased	161,035(-4.5%)	$10.5M	0.0%	+114.09%	0
CITIGROUP INC	Increased	156,519(+68.6%)	$10.2M	0.0%	+63.33%	41
Russell Investments Group, Ltd.	Decreased	130,520(-9.1%)	$8.5M	0.0%	+113.68%	0
Bank of New York Mellon Corp	Decreased	123,171(-6.3%)	$8M	0.0%	+198.06%	0
RAYMOND JAMES FINANCIAL INC	Decreased	122,346(-3.3%)	$7.8M	0.0%	+46.52%	0
Schonfeld Strategic Advisors LLC	Decreased	99,131(-80.2%)	$6.5M	0.0%	+59.57%	0
Qube Research & Technologies Ltd	New	97,906	$6.4M	0.0%	+79.32%	38
Candriam S.C.A.	New	96,420	$6.3M	0.0%	+79.32%	38
Nuveen, LLC	Decreased	81,944(-1.8%)	$5.3M	0.0%	+67.82%	0
XTX Topco Ltd	New	72,583	$4.7M	0.1%	+79.32%	44
Rafferty Asset Management, LLC	Increased	69,515(+41.2%)	$4.5M	0.0%	+142.78%	36
AMERIPRISE FINANCIAL INC	Decreased	69,156(-58.3%)	$4.5M	0.0%	+63.49%	0
Aberdeen Group plc	New	60,364	$3.9M	0.0%	+79.32%	37
Brevan Howard Capital Management LP	Increased	60,178(+1481.5%)	$3.9M	0.0%	+79.01%	43
MANUFACTURERS LIFE INSURANCE COMPANY, THE	Increased	57,251(+6.3%)	$3.7M	0.0%	+109.87%	28
VICTORY CAPITAL MANAGEMENT INC	Decreased	54,872(-68.1%)	$3.6M	0.0%	+97.34%	0
Swiss National Bank	Increased	54,700(+2.4%)	$3.6M	0.0%	+222.67%	27
JANE STREET GROUP, LLC	Decreased	54,670(-26.6%)	$3.6M	0.0%	+44.17%	0
WELLS FARGO & COMPANY/MN	Increased	54,260(+57.6%)	$3.5M	0.0%	+84.19%	38
Squarepoint Ops LLC	New	49,875	$3.3M	0.0%	+79.32%	37
TUDOR INVESTMENT CORP ET AL	New	46,029	$3M	0.0%	+79.32%	36
RHUMBLINE ADVISERS	Decreased	44,352(-15.4%)	$2.9M	0.0%	+271.10%	0
SCHRODER INVESTMENT MANAGEMENT GROUP	Unchanged	42,478	$2.7M	0.0%	+74.52%	0
ALLIANCEBERNSTEIN L.P.	Decreased	40,791(-11.9%)	$2.7M	0.0%	+208.86%	0
Invesco Ltd.	Increased	40,372(+19.9%)	$2.6M	0.0%	+122.17%	31
NEOS Investment Management LLC	Increased	39,904(+8.4%)	$2.6M	0.0%	+70.96%	28
Legal & General Group Plc	Increased	29,565(+2.0%)	$1.9M	0.0%	+162.17%	26
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	Decreased	27,115(-9.9%)	$1.8M	0.0%	+248.28%	0
CONGRESS ASSET MANAGEMENT CO	Increased	25,999(+2.8%)	$1.7M	0.0%	+208.21%	26
D. E. Shaw & Co., Inc.	New	25,165	$1.6M	0.0%	+79.32%	36
Erste Asset Management GmbH	Unchanged	21,000	$1.4M	0.0%	+63.98%	0
STATE OF WISCONSIN INVESTMENT BOARD	Decreased	20,918(-5.9%)	$1.4M	0.0%	+138.94%	0
FIRST TRUST ADVISORS LP	New	20,896	$1.4M	0.0%	+79.32%	35
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	Increased	20,002(+8.7%)	$1.3M	0.0%	+89.23%	28
MetLife Investment Management, LLC	Decreased	19,344(-3.4%)	$1.3M	0.0%	+229.03%	0
STRS OHIO	Decreased	16,869(-21.8%)	$1.1M	0.0%	+102.90%	0
PRUDENTIAL FINANCIAL INC	Increased	16,720(+71.1%)	$1.1M	0.0%	+58.61%	37
SEI INVESTMENTS CO	Increased	15,668(+441.2%)	$1M	0.0%	+71.59%	40
INTECH INVESTMENT MANAGEMENT LLC	Increased	15,031(+22.6%)	$980,021	0.0%	+51.34%	30
Trexquant Investment LP	New	14,915	$972,458	0.0%	+79.32%	35
HighTower Advisors, LLC	Decreased	12,558(-0.0%)	$818,782	0.0%	+458.62%	0
NEW YORK STATE COMMON RETIREMENT FUND	Decreased	11,623(-42.9%)	$757,820	0.0%	+154.39%	0
Zurcher Kantonalbank (Zurich Cantonalbank)	Unchanged	11,117	$724,828	0.0%	+104.66%	0
STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM	Unchanged	10,850	$707,420	0.0%	+106.65%	0
FRANKLIN RESOURCES INC	Decreased	10,131(-24.0%)	$660,541	0.0%	+99.61%	0
Gotham Asset Management, LLC	Unchanged	9,842	$641,698	0.0%	+81.46%	0
LPL Financial LLC	Decreased	9,622(-4.0%)	$627,354	0.0%	+153.48%	0
State of New Jersey Common Pension Fund D	New	9,465	$617,118	0.0%	+79.32%	34
Police & Firemen's Retirement System of New Jersey	Decreased	9,074(-5.9%)	$591,625	0.0%	+46.05%	0
DIMENSIONAL FUND ADVISORS LP	Decreased	8,903(-89.3%)	$580,476	0.0%	+50.94%	0
MILLENNIUM MANAGEMENT LLC	Decreased	8,821(-78.1%)	$575,129	0.0%	+64.77%	0
ProShare Advisors LLC	Increased	8,818(+12.6%)	$574,934	0.0%	+99.91%	27
GUGGENHEIM CAPITAL LLC	Increased	8,538(+4.5%)	$556,678	0.0%	+50.66%	25
MARSHALL WACE, LLP	New	8,442	$550,419	0.0%	+79.32%	34
AQR CAPITAL MANAGEMENT LLC	Decreased	7,960(-74.9%)	$518,992	0.0%	+61.71%	0
Arizona State Retirement System	Decreased	7,613(-6.3%)	$496,368	0.0%	+202.37%	0
Creative Planning	Decreased	7,319(-28.0%)	$477,199	0.0%	+58.06%	0
SUSQUEHANNA INTERNATIONAL GROUP, LLP	Decreased	7,258(-1.2%)	$473,222	0.0%	+65.42%	0
Allianz Asset Management GmbH	Decreased	6,200(-10.1%)	$404,240	0.0%	+124.12%	0
KLP KAPITALFORVALTNING AS	Increased	5,900(+7.3%)	$384,680	0.0%	+47.45%	26
BANQUE PICTET & CIE SA	New	5,109	$333,107	0.0%	+79.32%	33
TEACHER RETIREMENT SYSTEM OF TEXAS	Decreased	4,144(-39.0%)	$270,189	0.0%	+131.60%	0
MERCER GLOBAL ADVISORS INC /ADV	Increased	4,107(+19.0%)	$267,776	0.0%	+48.82%	27
VIRGINIA RETIREMENT SYSTEMS ET Al	Increased	4,000(+29.0%)	$260,800	0.0%	+50.82%	29
FARALLON CAPITAL MANAGEMENT LLC	Unchanged	4,000	$260,800	0.0%	+105.50%	0
Universal- Beteiligungs- und Servicegesellschaft mbH	Decreased	3,952(-2.4%)	$257,670	0.0%	+44.17%	0
Quantinno Capital Management LP	New	3,871	$252,389	0.0%	+79.32%	32
BNP PARIBAS FINANCIAL MARKETS	Decreased	3,605(-94.8%)	$235,046	0.0%	+63.78%	0
Vanguard Personalized Indexing Management, LLC	Decreased	3,526(-7.3%)	$229,895	0.0%	+43.30%	0
SIMPLEX TRADING, LLC	New	3,414	$222,592	0.0%	+79.32%	32
Man Group plc	New	3,322	$216,594	0.0%	+79.32%	32
Mariner, LLC	Decreased	3,113(-57.4%)	$205,756	0.0%	+60.15%	0
Mirae Asset Global Investments Co., Ltd.	Increased	2,810(+31.1%)	$183,212	0.0%	+133.15%	29
GROUP ONE TRADING LLC	Increased	1,969(+238.9%)	$128,379	0.0%	+67.29%	36
Caption Management, LLC	Decreased	1,825(-85.5%)	$118,990	0.0%	+67.82%	0
PRICE T ROWE ASSOCIATES INC /MD/	Increased	1.6M(+27.4%)	$105,025	0.0%	+111.98%	27
ROYAL BANK OF CANADA	Decreased	1,010(-98.4%)	$66,000	0.0%	+44.68%	0
JONES FINANCIAL COMPANIES LLLP	New	967	$63,048	0.0%	+79.32%	32
US BANCORP \DE\	Decreased	948(-47.3%)	$61,809	0.0%	+58.69%	0
FEDERATED HERMES, INC.	Increased	697(+23.6%)	$45,444	0.0%	+50.04%	25
NISA INVESTMENT ADVISORS, LLC	Decreased	429(-18.3%)	$27,971	0.0%	+93.83%	0
PNC FINANCIAL SERVICES GROUP, INC.	Decreased	425(-7.6%)	$27,710	0.0%	+64.26%	0
LOS ANGELES CAPITAL MANAGEMENT LLC	New	176	$15,400	0.0%	+79.32%	25
Rockefeller Capital Management L.P.	Increased	97(+1112.5%)	$6,324	0.0%	+75.79%	17
OSAIC HOLDINGS, INC.	Decreased	94(-3.1%)	$6,128	0.0%	+69.84%	0
COMERICA BANK	Increased	61(+3.4%)	$3,980	0.0%	+140.20%	10
ASSETMARK, INC	Increased	50(+284.6%)	$3,260	0.0%	+73.13%	15
Optiver Holding B.V.	Decreased	44(-83.0%)	$2,869	0.0%	+57.13%	0
HUNTINGTON NATIONAL BANK	Unchanged	32	$2,086	0.0%	+74.52%	0
Farther Finance Advisors, LLC	Decreased	27(-58.5%)	$1,760	0.0%	+47.27%	0
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO	New	25	$1,630	0.0%	+79.32%	17
Allworth Financial LP	Decreased	24(-14.3%)	$1,565	0.0%	+71.61%	0
Steward Partners Investment Advisory, LLC	Unchanged	7	$456	0.0%	+74.52%	0
BNP Paribas Asset Management Holding S.A.	Increased	366(+39.7%)	$24	0.0%	+75.86%	10
Jefferies Financial Group Inc.	Exited	0(-100.0%)	$862,050	0.0%	-2.68%	0
PRINCIPAL FINANCIAL GROUP INC	Exited	0(-100.0%)	$215,266	0.0%	-19.61%	0
ALPS ADVISORS INC	Exited	0(-100.0%)	$2.1M	0.0%	-2.68%	0
CIBC WORLD MARKETS CORP	Exited	0(-100.0%)	$297,049	0.0%	-12.01%	0
BALYASNY ASSET MANAGEMENT L.P.	Exited	0(-100.0%)	$4M	0.0%	-2.68%	0
Connor, Clark & Lunn Investment Management Ltd.	Exited	0(-100.0%)	$813,611	0.0%	-5.42%	0
Integrated Wealth Concepts LLC	Exited	0(-100.0%)	$281,028	0.0%	+11.25%	0
XPONANCE LLC	Exited	0(-100.0%)	$221,177	0.0%	-19.61%	0
NOMURA ASSET MANAGEMENT CO LTD	Unchanged	0	$0	0.0%	+45.56%	0
Capital World Investors	Exited	0(-100.0%)	$64.3M	0.0%	-10.51%	0
Jain Global LLC	Exited	0(-100.0%)	$4.1M	0.0%	-15.40%	0
BAKER BROS. ADVISORS LP	Exited	0(-100.0%)	$13.7M	0.0%	-2.68%	0
FRED ALGER MANAGEMENT, LLC	Exited	0(-100.0%)	$976,580	0.0%	-19.61%	0
MAI Capital Management	Exited	0(-100.0%)	$26,108	0.0%	-19.61%	0

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