Renaissance Technologies’s Arcellx ACLX Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q2
Sell
-96,400
Closed -$11.1M 3148
2026
Q1
$11.1M Buy
+96,400
New +$8.51M 0.02% 926
2025
Q2
Sell
-68,000
Closed -$4.46M 3527
2025
Q1
$4.46M Buy
68,000
+18,900
+38% +$1.28M 0.01% 1504
2024
Q4
$3.77M Buy
+49,100
New +$4.24M 0.01% 1628
2024
Q3
Sell
-27,072
Closed -$1.49M 3490
2024
Q2
$1.49M Buy
+27,072
New +$1.47M ﹤0.01% 2069
2024
Q1
Sell
-61,100
Closed -$3.39M 3662
2023
Q4
$3.39M Buy
61,100
+7,300
+14% +$329K 0.01% 1602
2023
Q3
$1.93M Sell
53,800
-290,867
-84% -$10M ﹤0.01% 1892
2023
Q2
$10.9M Buy
344,667
+328,167
+1,989% +$12.5M 0.02% 977
2023
Q1
$508K Sell
16,500
-34,300
-68% -$1.04M ﹤0.01% 2877
2022
Q4
$1.57M Buy
+50,800
New +$1.17M ﹤0.01% 2229
2022
Q3
Sell
-26,700
Closed -$483K 3982
2022
Q2
$483K Buy
+26,700
New +$345K ﹤0.01% 3182

Other funds holding ACLX

Renaissance Technologies's ACLX Position: Q2 2026 in Review

Renaissance Technologies sold out of Arcellx (ACLX) in Q2 2026, closing a stake of 96,400 shares — an estimated $11.1M sold.

Renaissance Technologies first reported a position in ACLX in Q2 2022 and held it in 10 quarters. The position peaked at $11.1M in Q1 2026. 2 funds tracked by Wall St. Rank hold ACLX as of Q2 2026.

  • Renaissance Technologies reported no remaining Arcellx position as of Q2 2026 after selling out during the quarter.
  • Renaissance Technologies sold 96,400 Arcellx shares in Q2 2026, an estimated $11.1M.
  • Renaissance Technologies first reported a position in Arcellx in Q2 2022 and held it in 10 quarters.
  • Renaissance Technologies's Arcellx position peaked at $11.1M in Q1 2026.
  • 2 funds tracked by Wall St. Rank held Arcellx as of Q2 2026.

Based on Renaissance Technologies's 13F filing for Q2 2026, filed 13 Aug 2026.