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Disclosery

ACLX ARCELLX INC

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Stock (common)

230 managers (240 13F filers) reported a position in ACLX shares at 2026-03-31, 57,013,621 shares in all. 87 filers opened a position and 73 filers sold out during the quarter.

Managers
230
13F filers
240
New
87
Added
62
Reduced
56
Sold out
73
Shares held by filers
57,013,621

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
GILEAD SCIENCES, INC.in group GILEAD SCIENCES, INC.6,720,803$772M36.44%013F-HRTimelineGroup
Paradigm Biocapital Advisors LPin group Paradigm Biocapital Advisors …5,774,016$663M13.55%+50,00013F-HRTimelineGroup
VANGUARD GROUP INCgroup of 7 filers holding5,215,952$599M+5,212,426Timeline
BlackRock, Inc.in group BlackRock, Inc.3,945,238$453M0.01%+396,45113F-HRTimelineGroup
NEA Management Company, LLC3,045,262$350M19.88%013F-HRTimeline
Pentwater Capital Management LP2,870,000$330M2.34%new13F-HRTimeline
SR One Capital Management, LP2,346,630$269M29.43%013F-HRTimeline
FIL Ltdin group FIL Ltd2,339,192$269M0.21%new13F-HRTimelineGroup
HBK INVESTMENTS L P2,278,517$262M3.29%new13F-HRTimeline
T. Rowe Price Investment Management, In…2,255,878$259M0.18%-8,304,54713F-HRTimeline
STATE STREET CORPin group STATE STREET CORP1,675,895$192M0.01%-322,60813F-HRTimelineGroup
GLAZER CAPITAL, LLCin group GLAZER CAPITAL, LLC1,507,128$173M3.68%new13F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC1,312,155$151M0.02%+643,67513F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC1,028,666$118M0.01%+70,60913F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY925,813$106M0.01%+407,40913F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO593,573$68.1M<0.01%-860,90413F-HR/ATimelineGroup
Davidson Kempner Capital Management LP559,644$64.3M1.14%new13F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
TIG Advisors, LLCin group TIG Advisors, LLC541,378$62.2M2.97%new13F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC502,846$57.7M0.04%+494,02513F-HRTimelineGroup
Balyasny Asset Management L.P.in group Balyasny Asset Management479,763$55.1M0.11%new13F-HRTimelineGroup
TUDOR INVESTMENT CORP ET AL462,588$53.1M0.29%+416,55913F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/452,333$51.9M<0.01%+24,56413F-HRTimelineGroup
O'Connor Alternative Investments LLC450,504$51.7M2.71%13F-HRTimeline
Magnetar Financial LLCin group Magnetar Financial LLC394,931$45.3M0.46%new13F-HRTimelineGroup
ALPINE ASSOCIATES MANAGEMENT INC.378,000$43.4M2.56%new13F-HRTimeline
NEXPOINT ASSET MANAGEMENT, L.P.in group NEXPOINT ASSET MANAGEMENT, L.…373,150$42.8M2.99%new13F-HRTimelineGroup
Affinity Asset Advisors, LLC362,764$41.7M2.44%-160,96113F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP350,065$40.2M0.01%+28,27213F-HRTimelineGroup
GAMCO Investors (Gabelli)group of 2 filers holding348,300$40MnewTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co346,092$39.7M0.01%+6,27913F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.544,227$35.5M0.01%+503,43613F-HRTimeline
Qube Research & Technologies Ltd303,847$34.9M0.05%+205,94113F-HRTimeline
UBS Group AGgroup of 2 filers holding251,998$28.9M-225,649Timeline
FIRST TRUST ADVISORS LPgroup of 2 filers holding238,235$27.4M+217,339Timeline
AQR CAPITAL MANAGEMENT LLCgroup of 2 filers holding231,730$26.6M+223,770Timeline
AJU IB Investment Co., Ltd.223,486$25.7M84.07%013F-HRTimeline
LMR Partners LLPin group LMR Partners LLP212,495$24.4M0.22%new13F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC207,642$23.8M0.01%+10,87013F-HRTimelineGroup
SOROS FUND MANAGEMENT LLCin group SOROS FUND MANAGEMENT LLC200,000$23M0.31%new13F-HRTimelineGroup
Verition Fund Management LLC187,354$21.5M0.21%new13F-HRTimeline
WATER ISLAND CAPITAL LLC183,409$21.1M2.81%new13F-HRTimeline
Man Group plcin group Man Group plc180,000$20.7M0.04%+176,67813F-HRTimelineGroup
Rock Springs Capital Management LP169,859$19.5M1.15%013F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS151,558$17.4M0.01%+147,95313F-HRTimelineGroup
Groupe la Francaisein group Groupe la Francaise151,046$17.3M0.24%new13F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp143,099$16.4M<0.01%+19,92813F-HRTimelineGroup
CREDIT INDUSTRIEL ET COMMERCIAL134,648$15.5M2.46%new13F-HRTimeline
Woodline Partners LP123,750$14.2M0.05%-614,07413F-HR/ATimeline
GARDNER LEWIS ASSET MANAGEMENT L P123,197$14.1M3.06%new13F-HRTimeline
Hudson Bay Capital Management LPin group Hudson Bay Capital Management…122,900$14.1M0.08%-278,04213F-HRTimelineGroup
PICTON MAHONEY ASSET MANAGEMENT120,000$13.8M0.14%new13F-HRTimeline
FMR LLCin group FMR LLC119,378$13.7M<0.01%-3,444,35013F-HRTimelineGroup
Slotnik Capital, LLC118,000$13.5M4.03%new13F-HRTimeline
ODDO BHF ASSET MANAGEMENT SAS115,000$13.2M0.52%new13F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
PRELUDE CAPITAL MANAGEMENT, LLC98,849$11.3M0.87%new13F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC96,400$11.1M0.02%new13F-HRTimeline
JANUS HENDERSON GROUP PLCin group Janus Henderson90,280$10.4M<0.01%-829,29813F-HR/ATimelineGroup
CIBRA Capital Ltd88,623$10.2M4.91%new13F-HRTimeline
Nuveen, LLCin group TIAA85,294$9.79M<0.01%+3,35013F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\80,664$9.26M<0.01%-152,92813F-HRTimelineGroup
Cinctive Capital Management LP80,000$9.19M0.6%new13F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 2 filers holding70,139$8.05M+11,943Timeline
Chicago Capital Management, LLC92,951$8.04M6.66%new13F-HRTimeline
Sagefield Capital LPin group Sagefield Capital LP65,097$7.47M0.54%new13F-HRTimelineGroup
Athos Capital Ltd64,900$7.45M2.3%new13F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…61,905$7.11M0.01%-68,61513F-HRTimelineGroup
SAMSARA BIOCAPITAL, LLC60,873$6.99M0.68%013F-HRTimeline
Voleon Capital Management LP56,720$6.51M0.14%new13F-HRTimeline
PSquared Asset Management AG55,251$6.34M2.21%new13F-HRTimeline
Swiss National Bank54,700$6.28M<0.01%013F-HRTimeline
Twin Securities, Inc.53,982$6.2M3.06%new13F-HRTimeline
HARVEST MANAGEMENT LLC50,000$5.74M3.05%new13F-HRTimeline
CONGRESS ASSET MANAGEMENT CO47,551$5.46M0.04%+21,55213F-HRTimeline
Invesco Ltd.in group Invesco Ltd.47,280$5.43M<0.01%+6,90813F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/45,954$5.28M<0.01%-1,564,84713F-HRTimeline
RHUMBLINE ADVISERS45,211$5.19M<0.01%+85913F-HRTimeline
Maven Securities LTDin group Maven Securities LTD42,500$4.88M0.28%new13F-HRTimelineGroup
Rafferty Asset Management, LLC39,441$4.53M0.02%-30,07413F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…34,886$4.01M<0.01%+7,77113F-HRTimeline
EQUITEC PROPRIETARY MARKETS, LLC33,574$3.85M8.91%new13F-HRTimeline
ADAR1 Capital Management, LLCin group ADAR1 Capital Management, LLC32,084$3.68M0.22%+60013F-HRTimelineGroup
FIFTH LANE CAPITAL, LP31,044$3.56M4.33%new13F-HRTimeline
DekaBank Deutsche Girozentrale30,000$3.5M0.01%013F-HRTimeline
ABC ARBITRAGE SAin group ABC ARBITRAGE SA30,347$3.48M0.46%new13F-HRTimelineGroup
HEALTHCARE OF ONTARIO PENSION PLAN TRUS…30,000$3.44M0.01%new13F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC27,145$3.12M0.01%-22,73013F-HRTimelineGroup
New York Life Investment Management LLCin group New York Life Investment Mana…26,243$3.01M0.03%new13F-HRTimelineGroup
SG Americas Securities, LLC24,713$2.84M<0.01%+12,67213F-HRTimeline
Yakira Capital Management, Inc.24,000$2.76M0.81%new13F-HRTimeline
Skandinaviska Enskilda Banken AB (publ)24,000$2.76M0.06%new13F-HRTimeline
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding23,856$2.74M+1,044Timeline
Legal & General Group Plcin group Legal & General Group Plc21,888$2.51M<0.01%-7,67713F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC21,806$2.5M<0.01%-1,478,41713F-HRTimelineGroup
Erste Asset Management GmbHin group Erste Asset Management GmbH21,000$2.41M0.02%013F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…20,914$2.4M0.01%+1,57013F-HRTimelineGroup
Vestcor Inc19,578$2.25M0.06%new13F-HRTimeline
Knott David M Jr19,433$2.23M1.33%-6,26713F-HRTimeline
Abu Dhabi Investment Council Co P.J.S.Cin group Abu Dhabi Investment Council …19,338$2.22M0.23%13F-HRTimelineGroup
Carmignac Gestion18,925$2.17M0.03%new13F-HRTimeline
Fortress Investment Group LLCin group Fortress Investment Group LLC18,183$2.09M0.53%new13F-HRTimelineGroup
PROFUND ADVISORS LLC17,877$2.05M0.08%-7,86313F-HRTimeline
Kintayl Capital LP17,468$2.01M1.23%new13F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD17,434$2M<0.01%-3,48413F-HRTimeline
Creative Planningin group Creative Planning15,653$1.8M<0.01%+8,33413F-HRTimelineGroup
ExodusPoint Capital Management, LP14,828$1.7M0.02%-202,59613F-HRTimeline
GUGGENHEIM CAPITAL LLCin group GUGGENHEIM CAPITAL LLC14,809$1.7M0.01%+6,27113F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN14,393$1.65M<0.01%-39,86713F-HR/ATimelineGroup
Jasper Ridge Partners, L.P.13,947$1.6M0.04%013F-HRTimeline
Handelsbanken Fonder AB13,000$1.49M<0.01%013F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND12,523$1.44M<0.01%+90013F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…12,314$1.41M<0.01%+1,19713F-HRTimeline
Mint Tower Capital Management B.V.12,000$1.38M0.13%new13F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …11,965$1.37M<0.01%-45,28613F-HRTimelineGroup
RK Capital Management, LLC/FL11,858$1.36M3.13%new13F-HRTimeline
ProShare Advisors LLC11,378$1.31M<0.01%+2,56013F-HRTimeline
STATE BOARD OF ADMINISTRATION OF FLORID…10,850$1.25M<0.01%013F-HRTimeline
Police & Firemen's Retirement System of…10,445$1.2M0.01%+1,37113F-HRTimeline
China Universal Asset Management Co., L…10,378$1.19M0.09%+95613F-HRTimeline
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.9,843$1.13M<0.01%new13F-HRTimelineGroup
State of New Jersey Common Pension Fund…in group State of New Jersey Common Pe…9,477$1.09M<0.01%+1213F-HRTimelineGroup
NOMURA ASSET MANAGEMENT CO LTDgroup of 2 filers holding9,301$1.07M+9,301Timeline
High Net Worth Advisory Group LLC8,000$919K0.21%013F-HRTimeline
Kapitalo Investimentos Ltda7,978$916K0.17%new13F-HRTimeline
CITIGROUP INCin group CITIGROUP INC7,816$897K<0.01%-148,70313F-HRTimelineGroup
ARIZONA STATE RETIREMENT SYSTEM7,616$874K0.01%+313F-HRTimeline
CSS LLC/IL7,600$873K0.05%new13F-HRTimeline
ASPIRIANT, LLC7,332$842K0.02%-57813F-HRTimeline
TORNO CAPITAL, LLC7,285$836K0.35%new13F-HR/ATimeline
Transmarket Holdings LP6,557$753K0.4%new13F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC6,378$732K<0.01%-162,30213F-HRTimelineGroup
GTS SECURITIES LLC6,338$728K0.03%new13F-HRTimeline
Mariner, LLCin group Mariner, LLC6,280$721K<0.01%+3,16713F-HRTimelineGroup
KLP KAPITALFORVALTNING AS6,100$700K<0.01%+20013F-HRTimeline
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC6,040$694K<0.01%-10,68013F-HRTimelineGroup
Quantinno Capital Management LP5,277$606K<0.01%+1,40613F-HRTimeline
VICTORY CAPITAL MANAGEMENT INC5,168$593K<0.01%-49,70413F-HRTimeline
E Fund Management Co., Ltd.5,084$584K0.02%13F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO4,492$516K<0.01%-11,17613F-HRTimelineGroup
STRS OHIO4,300$494K<0.01%-12,56913F-HRTimeline
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…4,229$486K<0.01%-338,38313F-HRTimelineGroup
MERCER GLOBAL ADVISORS INC /ADV4,057$466K<0.01%-5013F-HRTimeline
BCK CAPITAL MANAGEMENT LP4,000$459K2%new13F-HRTimeline
Advisors Asset Management, Inc.3,978$457K0.01%-69213F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC3,869$444K<0.01%-65,28713F-HR/ATimelineGroup
Harbour Capital Advisors, LLC3,825$440K0.08%013F-HRTimeline
Virtus Investment Advisers, LLCin group Virtus Investment Advisers, L…3,794$436K0.12%+9313F-HRTimelineGroup
DELTEC ASSET MANAGEMENT LLC3,750$431K0.08%new13F-HRTimeline
TEACHER RETIREMENT SYSTEM OF TEXAS3,627$416K<0.01%-51713F-HRTimeline
XPONANCE LLC3,524$405K<0.01%new13F-HRTimeline
Advisory Alpha, LLC3,303$379K0.01%-1013F-HRTimeline
Marks Group Wealth Management, Inc3,180$365K0.04%-1,34413F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…3,141$361K0.01%+28013F-HRTimelineGroup
Nicholas Investment Partners, LP3,133$360K0.03%new13F-HRTimeline
PenderFund Capital Management Ltd.2,900$333K0.05%new13F-HRTimeline
Verdad Advisers, LP2,893$332K0.37%new13F-HRTimeline
PRINCIPAL FINANCIAL GROUP INCin group PRINCIPAL FINANCIAL GROUP INC2,764$317K<0.01%new13F-HRTimelineGroup
TWO SIGMA SECURITIES, LLC2,673$307K0.04%new13F-HRTimeline
Abel Hall, LLC2,602$299K0.06%new13F-HRTimeline
CIBC Asset Management Inc2,508$288K<0.01%new13F-HRTimeline
Vident Advisory, LLCin group Vident Advisory, LLC2,298$264K<0.01%new13F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…2,270$261K0.01%+1,84313F-HRTimelineGroup
DNB Asset Management ASin group DNB Asset Management AS2,162$248K<0.01%new13F-HRTimelineGroup
Universal- Beteiligungs- und Serviceges…in group Universal- Beteiligungs- und …2,148$247K<0.01%-1,80413F-HRTimelineGroup
FORA Capital, LLC2,077$239K0.02%new13F-HRTimeline
Swiss Life Asset Management Ltdin group Swiss Life Asset Management L…2,065$237K<0.01%new13F-HRTimelineGroup
Empowered Funds, LLC2,010$231K<0.01%new13F-HR/ATimeline
CIBC Bancorp USA Inc.in group CIBC Bancorp USA Inc.1,940$223K<0.01%13F-HRTimelineGroup
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP1,937$222K<0.01%+97013F-HRTimelineGroup
Meeder Advisory Services, Inc.in group Meeder Advisory Services, Inc.1,928$221K0.01%new13F-HRTimelineGroup
PRAXIS INVESTMENT MANAGEMENT INC1,888$217K0.01%new13F-HRTimeline
GF FUND MANAGEMENT CO. LTD.1,299$149K<0.01%+16313F-HRTimeline
KBC Group NVin group KBC Group NV1,056$121K<0.01%013F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.954$110K<0.01%+86013F-HRTimelineGroup
US BANCORP \DE\in group US BANCORP \DE\909$104K<0.01%-3913F-HRTimelineGroup
Meteora Capital, LLC876$101K0.01%new13F-HRTimeline
NISA INVESTMENT ADVISORS, LLC844$96.9K<0.01%+41513F-HRTimeline
Quantbot Technologies LP749$86K<0.01%new13F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…580$66.6K<0.01%+15513F-HRTimelineGroup
State of Wyoming524$60.2K0.01%-1313F-HRTimeline
Strengthening Families & Communities, L…500$57.4K0.01%new13F-HRTimeline
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …485$55.7K<0.01%+11913F-HRTimelineGroup
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…484$55.6K<0.01%+38713F-HRTimelineGroup
GROUP ONE TRADING LLC462$53K<0.01%-1,50713F-HRTimeline
GAMMA Investing LLC456$52.4K<0.01%+12213F-HRTimeline
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…382$43.8K<0.01%new13F-HRTimelineGroup
Bayforest Capital Ltd375$43.1K0.05%new13F-HRTimeline
Quarry LP360$41.3K0.01%new13F-HRTimeline
Larson Financial Group LLC357$41K<0.01%+27813F-HRTimeline
Smartleaf Asset Management LLC305$35K<0.01%-1213F-HRTimeline
Versant Capital Management, Inc250$28.7K<0.01%+713F-HRTimeline
Sterling Capital Management LLC249$28.6K<0.01%+2013F-HRTimeline
SBI Securities Co., Ltd.239$27.4K<0.01%-3,27713F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.226$25.9K<0.01%+18213F-HR/ATimelineGroup
Covestor Ltd151$17K0.01%-7413F-HRTimeline
Parallel Advisors, LLC133$15.3K<0.01%+7813F-HR/ATimeline
E Fund Management (Hong Kong) Co., Ltd.126$14.5K0.01%new13F-HRTimeline
Keating Financial Advisory Services, In…107$12.3K<0.01%-10313F-HRTimeline
Allworth Financial LP80$9.19K<0.01%+5613F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…78$8.95K<0.01%-3213F-HR/ATimelineGroup
CWM, LLCin group CWM, LLC77$8.84K<0.01%-12413F-HRTimelineGroup