NASDAQ: ACLX
Arcellx Inc Stock Ownership - Who owns Arcellx?

Insider buying vs selling

Have Arcellx Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Rami ElghandourPresident CEO and Chairman of the Board2026-02-2789,916$113.92
$10.24MSell
Michelle GilsonCHIEF FINANCIAL OFFICER2026-02-2511,219$113.82
$1.28MSell
Michelle GilsonCHIEF FINANCIAL OFFICER2026-02-192,879$67.73
$194.99kSell
Michelle GilsonCHIEF FINANCIAL OFFICER2026-02-19100$69.38
$6.94kSell
Michelle GilsonCHIEF FINANCIAL OFFICER2026-02-195,405$68.57
$370.64kSell
Michelle GilsonCHIEF FINANCIAL OFFICER2026-02-177,141$69.21
$494.23kSell
Michelle GilsonCHIEF FINANCIAL OFFICER2026-02-174,150$70.01
$290.55kSell
David Charles LubnerDirector2026-01-206,000$6.28
$37.68kBuy
David Charles LubnerDirector2026-01-206,000$75.00
$450.00kSell
Christopher HeeryCHIEF MEDICAL OFFICER2026-01-145,882$68.51
$403.00kSell

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Net Insider Buy/Sell (L12M) Ownership

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ACLX Shareholders

What type of owners hold Arcellx Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
T Rowe Price Investment Management Inc18.06%10,560,425$1.20BInstitution
Gilead Sciences Inc11.49%6,720,803$766.51MInstitution
Gilead Sciences Inc11.49%6,720,803$766.51MInsider
Sr One Capital Management LLC11.15%6,520,370$743.65MInsider
Jill Carroll10.84%6,340,738$723.16MInsider
Paradigm Biocapital Advisors LP9.79%5,724,016$652.82MInstitution
Scott D. Sandell8.12%4,748,116$541.52MInsider
Peter W. Sonsini8.12%4,746,083$541.29MInsider
Mohamad Makhzoumi8.11%4,745,545$541.23MInsider
Nea Partners 15 LP8.11%4,745,262$541.20MInsider

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ACLX vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ACLX52.82%47.18%Net SellingNet Selling
KYMR77.07%22.93%Net BuyingNet Buying
RYTM88.72%11.28%Net SellingNet Selling
COGT92.60%7.40%Net SellingNet Selling
CYTK90.05%9.95%Net SellingNet Buying

Arcellx Stock Ownership FAQ

Who owns Arcellx?

Arcellx (NASDAQ: ACLX) is owned by 113.92% institutional shareholders, 101.74% Arcellx insiders, and 0.00% retail investors. Gilead Sciences Inc is the largest individual Arcellx shareholder, owning 6.72M shares representing 11.49% of the company. Gilead Sciences Inc's Arcellx shares are currently valued at $766.51M.

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