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Arcellx (ACLX) Institutional Ownership

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Institutional Ownership Changes (13F Filings) for Arcellx (NASDAQ:ACLX)

Current
Institutional Ownership
Percentage
96.03%
Number of
Institutional Buyers
(last 12 months)
138
Total
Institutional Inflows
(last 12 months)
$1.02B
Number of
Institutional Sellers
(last 12 months)
86
Total
Institutional Outflows
(last 12 months)
$789.10M
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ACLX Institutional Buying and Selling by Quarter

Arcellx Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
6/16/2026Empowered Funds LLC2,010$231K0.0%N/A0.003%
6/15/2026Carmignac Gestion18,925$2.17M0.0%N/A0.032%
6/2/2026Optiver Holding B.V.226$26K0.0%+413.6%0.000%
5/21/2026Groupe la Francaise151,046$17.34M0.2%N/A0.258%
5/19/2026Bank of America Corp DE452,333$51.94M0.0%+5.7%0.773%
5/19/2026Janus Henderson Group PLC90,280$10.37M0.0%-90.2%0.154%
5/19/2026Oddo BHF Asset Management Sas115,000$13.20M0.5%N/A0.197%
5/18/2026ADAR1 Capital Management LLC32,084$3.68M0.2%+1.9%0.055%
5/18/2026California State Teachers Retirement System34,886$4.01M0.0%+28.7%0.060%
5/18/2026Empowered Funds LLC2,010$231K0.0%N/A0.003%
5/16/2026Torno Capital LLC7,285$836K0.1%N/A0.012%
5/16/2026The Manufacturers Life Insurance Company 11,965$1.37M0.0%-79.1%0.020%
5/16/2026Quantinno Capital Management LP5,277$606K0.0%+36.3%0.009%
5/15/2026Affinity Asset Advisors LLC362,764$41.65M2.1%-30.7%0.620%
5/14/2026Healthcare of Ontario Pension Plan Trust Fund30,000$3.45M0.0%N/A0.051%
5/14/2026Renaissance Technologies LLC96,400$11.07M0.0%N/A0.165%
5/14/2026Gabelli Funds LLC195,900$22.49M0.2%N/A0.335%
5/14/2026GABELLI & Co INVESTMENT ADVISERS INC.152,400$17.50M2.6%N/A0.261%
5/14/2026PSquared Asset Management AG55,251$6.34M2.2%N/A0.094%
5/14/2026Knott David M Jr19,433$2.23M1.3%-24.4%0.033%
5/14/2026Sei Investments Co.4,492$516K0.0%-71.3%0.008%
5/13/2026 Transmarket Holdings LP6,557$753K0.4%N/A0.011%
5/8/2026PNC Financial Services Group Inc.580$67K0.0%+36.5%0.001%
5/7/2026Kapitalo Investimentos Ltda7,978$916K0.2%N/A0.014%
5/7/2026Meeder Advisory Services Inc.1,928$221K0.0%N/A0.003%
5/5/2026Marks Group Wealth Management Inc3,180$365K0.0%-29.7%0.005%
5/5/2026Bank of New York Mellon Corp143,099$16.43M0.0%+16.2%0.245%
5/4/2026 ABC Arbitrage SA30,347$3.48M0.5%N/A0.052%
5/4/2026Principal Financial Group Inc.2,764$317K0.0%N/A0.005%
5/1/2026Fifth Third Bancorp382$44K0.0%N/A0.001%
4/29/2026 Credit Industriel ET Commercial134,648$15.46M1.2%N/A0.230%
4/28/2026 Abel Hall LLC2,602$299K0.1%N/A0.004%
4/28/2026Praxis Investment Management Inc.1,888$217K0.0%N/A0.003%
4/27/2026 Chicago Capital Management LLC92,951$10.67M0.0%N/A0.159%
4/25/2026Strs Ohio4,300$494K0.0%-74.5%0.007%
4/24/2026 Deltec Asset Management LLC3,750$431K0.1%N/A0.006%
4/22/2026Pictet Asset Management Holding SA4,229$486K0.0%-98.8%0.007%
4/16/2026SG Americas Securities LLC24,713$2.84M0.0%+105.2%0.042%
2/19/2026T. Rowe Price Investment Management Inc.10,560,425$688.54M0.4%+66.2%18.264%
2/19/2026Invesco Ltd.40,372$2.63M0.0%+19.9%0.070%
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2/18/2026Mercer Global Advisors Inc. ADV4,107$268K0.0%+19.0%0.007%
2/18/2026XTX Topco Ltd72,583$4.73M0.1%N/A0.126%
2/18/2026Vestal Point Capital LP2,925,000$190.71M6.5%+134.0%5.059%
2/18/2026Virtus Investment Advisers LLC3,701$241K0.1%+116.3%0.006%
2/18/2026Wellington Management Group LLP214,776$14.00M0.0%-7.5%0.371%
2/18/2026Tudor Investment Corp ET AL46,029$3.00M0.0%N/A0.080%
2/18/2026Twinbeech Capital LP6,949$453K0.0%N/A0.012%
2/18/2026Perceptive Advisors LLC1,466,071$95.59M1.7%-40.6%2.536%
2/18/2026Millennium Management LLC8,821$575K0.0%-78.1%0.015%
2/18/2026Man Group plc3,322$217K0.0%N/A0.006%
2/18/2026Janus Henderson Group PLC919,578$59.96M0.0%-9.3%1.590%
2/18/2026Catalio Capital Management LP156,109$10.18M1.9%N/A0.270%
2/18/2026Clough Capital Partners L P129,780$8.46M0.8%N/A0.224%
2/18/2026Bamco Inc. NY609,697$39.75M0.1%+10.8%1.054%
2/17/2026Guggenheim Capital LLC8,538$557K0.0%+4.5%0.015%
2/17/2026Logos Global Management LP115,000$7.50M0.5%-30.3%0.199%
2/17/2026Samsara Biocapital LLC60,873$3.97M0.4%-25.0%0.105%
2/17/2026Schonfeld Strategic Advisors LLC99,131$6.46M0.0%-80.2%0.171%
2/17/2026AQR Capital Management LLC7,960$519K0.0%-74.9%0.014%
2/17/2026RA Capital Management L.P.1,267,156$82.62M0.8%-58.3%2.191%
2/17/2026Paradigm Biocapital Advisors LP5,724,016$373.21M9.5%+23.1%9.899%
2/17/2026Trexquant Investment LP14,915$972K0.0%N/A0.026%
2/17/2026Price T Rowe Associates Inc. MD1,610,801$105.03M0.0%+27.4%2.786%
2/17/2026T. Rowe Price Investment Management Inc.5,653,523$368.61M0.4%-11.0%9.777%
2/17/2026Rock Springs Capital Management LP169,859$11.08M0.6%-5.1%0.294%
2/17/2026Integral Health Asset Management LLC200,000$13.04M0.6%+33.3%0.346%
2/17/2026California State Teachers Retirement System27,115$1.77M0.0%-9.9%0.047%
2/17/2026Russell Investments Group Ltd.130,520$8.51M0.0%-9.1%0.226%
2/17/2026State of Wisconsin Investment Board20,918$1.36M0.0%-5.9%0.036%
2/17/2026ExodusPoint Capital Management LP217,424$14.18M0.1%+2,201.8%0.376%
2/17/2026Royal Bank of Canada1,010$66K0.0%-98.4%0.002%
2/16/2026Squarepoint Ops LLC49,875$3.25M0.0%N/A0.086%
2/16/2026Mariner LLC3,113$206K0.0%-57.4%0.005%
2/16/2026Barclays PLC196,772$12.83M0.0%+82.8%0.340%
2/13/2026Marshall Wace LLP8,442$550K0.0%N/A0.015%
2/13/2026The Manufacturers Life Insurance Company 57,251$3.67M0.0%+6.3%0.099%
2/13/2026Affinity Asset Advisors LLC523,725$34.15M1.9%+4.7%0.906%
2/13/2026Hudson Bay Capital Management LP400,942$26.14M0.1%N/A0.693%
2/13/2026Rafferty Asset Management LLC69,515$4.53M0.0%+41.2%0.120%
2/13/2026First Trust Advisors LP20,896$1.36M0.0%N/A0.036%
2/13/2026Headlands Technologies LLC7,320$477K0.0%N/A0.013%
2/13/2026Charles Schwab Investment Management Inc.339,813$22.16M0.0%+2.8%0.588%
2/13/2026 Police & Firemen s Retirement System of New Jersey9,074$592K0.0%-5.9%0.016%
2/13/2026State Street Corp1,998,503$130.30M0.0%+31.0%3.456%
2/13/2026UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC161,035$10.50M0.0%-4.5%0.279%
2/13/2026Wells Fargo & Company MN54,260$3.54M0.0%+57.6%0.094%
2/13/2026Lord Abbett & CO. LLC449,634$29.32M0.1%+6.0%0.778%
2/13/2026Rhenman & Partners Asset Management AB133,500$8.70M0.8%+104.6%0.231%
2/12/2026Advisors Asset Management Inc.4,670$304K0.0%-42.2%0.008%
2/12/2026MetLife Investment Management LLC19,344$1.26M0.0%-3.4%0.033%
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2/12/2026Dimensional Fund Advisors LP8,903$580K0.0%-89.3%0.015%
2/12/2026Jasper Ridge Partners L.P.13,947$909K0.0%-7.7%0.024%
2/12/2026New York State Common Retirement Fund11,623$758K0.0%-42.9%0.020%
2/12/2026Swiss National Bank54,700$3.57M0.0%+2.4%0.095%
2/12/2026Nuveen LLC81,944$5.34M0.0%-1.8%0.142%
2/11/2026Deutsche Bank AG233,592$15.23M0.0%-41.5%0.404%
2/11/2026Marks Group Wealth Management Inc4,524$295K0.0%N/A0.008%
2/11/2026LPL Financial LLC9,622$627K0.0%-4.0%0.017%
2/11/2026Franklin Resources Inc.10,131$661K0.0%-24.0%0.018%
2/10/2026TD Asset Management Inc300,856$19.62M0.0%+29.3%0.520%


ACLX Institutional Ownership - Frequently Asked Questions

During the previous two years, 246 institutional investors and hedge funds held shares of Arcellx. The most heavily invested institutionals were T. Rowe Price Investment Management Inc. ($688.54M), FMR LLC ($610.19M), Gilead Sciences Inc. ($515.42M), Paradigm Biocapital Advisors LP ($373.21M), Vanguard Group Inc. ($266.12M), Vestal Point Capital LP ($190.71M), and State Street Corp ($130.30M).Learn more on Arcellx's institutional investors.

96.03% of Arcellx's stock is owned by institutional investors. Learn more on ACLX's institutional investor holdings.

Of the 209 institutional investors that purchased Arcellx's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Gilead Sciences Inc. ($6.72M), T. Rowe Price Investment Management Inc. ($5.17M), Vestal Point Capital LP ($3.95M), Vanguard Group Inc. ($1.70M), FMR LLC ($1.48M), RA Capital Management L.P. ($1.43M), and Paradigm Biocapital Advisors LP ($1.20M).

Institutional investors have bought a total of 14,475,756 shares in the last 24 months. This purchase volume represents approximately $1.02B in transactions.

Of the 86 institutional investors that sold Arcellx's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: RA Capital Management L.P. ($1.77M), Vestal Point Capital LP ($1.50M), Perceptive Advisors LLC ($1.45M), Janus Henderson Group PLC ($923.64K), AJU IB Investment Co. Ltd. ($824.07K), T. Rowe Price Investment Management Inc. ($698.83K), and Pictet Asset Management Holding SA ($416.58K).

Institutional investors have sold a total of 10,372,379 shares in the last 24 months. This volume of shares sold represents approximately $789.10M in transactions.


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This page (NASDAQ:ACLX) was last updated on 7/29/2026 by MarketBeat.com Staff.
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