Capital World Investors
ACLX

Capital World Investors’s Arcellx ACLX Stock Holding History

Capital World Investors’s Portfolio ACLX Stock Details ACLX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-783,011
Closed -$64.3M – 575
2025
Q3 		$64.3M Hold
783,011
– – 0.01% 385
2025
Q2 		$51.6M Buy
783,011
+73,637
+10% +$4.58M 0.01% 402
2025
Q1 		$46.5M Buy
709,374
+456,496
+181% +$30.9M 0.01% 400
2024
Q4 		$19.4M Buy
+252,878
New +$21.8M ﹤0.01% 457

Other funds holding ACLX

T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
GS
Gilead Sciences Foster City, California $1.65B AUM 166.99% 1-Year Est. Return
PBA
Paradigm Biocapital Advisors New York $4.89B AUM 251.12% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
NMC
NEA Management Company Timonium, Maryland $1.76B AUM 223.33% 1-Year Est. Return
VPC
Vestal Point Capital New York $3.58B AUM 189.12% 1-Year Est. Return
SOCM
SR One Capital Management Wayne, Pennsylvania $915M AUM 209.71% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Capital World Investors's ACLX Position: Q4 2025 in Review

Capital World Investors sold out of Arcellx (ACLX) in Q4 2025, closing a stake of 783,011 shares — an estimated $64.3M sold.

Capital World Investors first reported a position in ACLX in Q4 2024 and held it in 4 quarters. The position peaked at $64.3M in Q3 2025. 218 funds tracked by Wall St. Rank hold ACLX as of Q4 2025.

  • Capital World Investors reported no remaining Arcellx position as of Q4 2025 after selling out during the quarter.
  • Capital World Investors sold 783,011 Arcellx shares in Q4 2025, an estimated $64.3M.
  • Capital World Investors first reported a position in Arcellx in Q4 2024 and held it in 4 quarters.
  • Capital World Investors's Arcellx position peaked at $64.3M in Q3 2025.
  • 218 funds tracked by Wall St. Rank held Arcellx as of Q4 2025.

Based on Capital World Investors's 13F filing for Q4 2025, filed 11 Feb 2026.