CM
ACLX

Caption Management’s Arcellx ACLX Stock Holding History

Caption Management’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
2026
Q1 		– Sell
-1,825
Closed -$161K – 1494
2025
Q4 		$119K Sell
1,825
-10,775
-86% -$860K ﹤0.01% 1428
2025
Q3 		$1.03M Sell
12,600
-14,156
-53% -$1.02M 0.01% 1097
2025
Q2 		$1.76M Sell
26,756
-40,313
-60% -$2.51M 0.02% 758
2025
Q1 		$4.4M Buy
+67,069
New +$4.54M 0.04% 436
2024
Q4 		– Sell
-37,580
Closed -$3.25M – 1427
2024
Q3 		$3.14M Buy
+37,580
New +$2.5M 0.05% 432

Other funds holding ACLX

GS
Gilead Sciences Foster City, California $2.12B AUM 143.53% 1-Year Est. Return
PBA
Paradigm Biocapital Advisors New York $4.89B AUM 251.12% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
NMC
NEA Management Company Timonium, Maryland $1.76B AUM 223.33% 1-Year Est. Return
PCM
Pentwater Capital Management Naples, Florida $19.3B AUM 58.13% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
SOCM
SR One Capital Management Wayne, Pennsylvania $915M AUM 209.71% 1-Year Est. Return
Fidelity International
Fidelity International Hamilton, Bermuda $129B AUM 30.83% 1-Year Est. Return
HI
HBK Investments Dallas, Texas $9.85B AUM 55.6% 1-Year Est. Return

Caption Management's ACLX Position: Q1 2026 in Review

Caption Management sold out of Arcellx (ACLX) in Q1 2026, closing a stake of 1,825 shares — an estimated $161K sold.

Caption Management first reported a position in ACLX in Q3 2024 and held it in 5 quarters. The position peaked at $4.4M in Q1 2025. 239 funds tracked by Wall St. Rank hold ACLX as of Q1 2026.

  • Caption Management reported no remaining Arcellx position as of Q1 2026 after selling out during the quarter.
  • Caption Management sold 1,825 Arcellx shares in Q1 2026, an estimated $161K.
  • Caption Management first reported a position in Arcellx in Q3 2024 and held it in 5 quarters.
  • Caption Management's Arcellx position peaked at $4.4M in Q1 2025.
  • 239 funds tracked by Wall St. Rank held Arcellx as of Q1 2026.

Based on Caption Management's 13F filing for Q1 2026, filed 15 May 2026.