Citadel Advisors
ACLX

Citadel Advisors’s Arcellx ACLX Stock Holding History

Citadel Advisors’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
Q2 		– Sell
-20,100
Closed -$2.31M – 13591
2026
Q1 		$2.31M Sell
20,100
-10,100
-33% -$891K ﹤0.01% 5789
2025
Q4 		$1.97M Buy
30,200
+11,900
+65% +$949K ﹤0.01% 5948
2025
Q3 		$1.5M Sell
18,300
-82,600
-82% -$5.95M ﹤0.01% 6671
2025
Q2 		$6.64M Buy
100,900
+90,200
+843% +$5.62M ﹤0.01% 3639
2025
Q1 		$702K Sell
10,700
-27,200
-72% -$1.84M ﹤0.01% 7744
2024
Q4 		$2.91M Sell
37,900
-700
-2% -$60.5K ﹤0.01% 4892
2024
Q3 		$3.22M Buy
38,600
+36,500
+1,738% +$2.43M ﹤0.01% 4669
2024
Q2 		$116K Sell
2,100
-28,900
-93% -$1.57M ﹤0.01% 10704
2024
Q1 		$2.16M Buy
31,000
+24,100
+349% +$1.53M ﹤0.01% 5376
2023
Q4 		$383K Buy
6,900
+1,600
+30% +$72.2K ﹤0.01% 8659
2023
Q3 		$190K Buy
5,300
+1,400
+36% +$48.3K ﹤0.01% 9997
2023
Q2 		$123K Sell
3,900
-9,200
-70% -$352K ﹤0.01% 10606
2023
Q1 		$404K Buy
13,100
+2,800
+27% +$84.9K ﹤0.01% 8753
2022
Q4 		$319K Buy
+10,300
New +$236K ﹤0.01% 9180

Other funds holding ACLX

DekaBank Deutsche Girozentrale
DekaBank Deutsche Girozentrale Frankfurt, Germany $59.2B AUM 26.02% 1-Year Est. Return
IA
IFP Advisors Tampa, Florida $5.54B AUM 27.43% 1-Year Est. Return

Citadel Advisors's ACLX Position: Q2 2026 in Review

Citadel Advisors sold out of Arcellx (ACLX) in Q2 2026, closing a stake of 21,806 shares — an estimated $2.5M sold.

Citadel Advisors first reported a position in ACLX in Q1 2022 and held it in 16 quarters. The position peaked at $97.8M in Q4 2025. 2 funds tracked by Wall St. Rank hold ACLX as of Q2 2026.

  • Citadel Advisors reported no remaining Arcellx position as of Q2 2026 after selling out during the quarter.
  • Citadel Advisors sold 21,806 Arcellx shares in Q2 2026, an estimated $2.5M.
  • Citadel Advisors first reported a position in Arcellx in Q1 2022 and held it in 16 quarters.
  • Citadel Advisors's Arcellx position peaked at $97.8M in Q4 2025.
  • 2 funds tracked by Wall St. Rank held Arcellx as of Q2 2026.

Based on Citadel Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.