SEI Investments’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 |
-4,492
| Closed | -$516K | – | 3274 |
|
|
2026
Q1 | $516K | Sell |
4,492
-11,176
| -71% | -$986K | ﹤0.01% | 2646 |
|
|
2025
Q4 | $1.02M | Buy |
15,668
+12,773
| +441% | +$1.02M | ﹤0.01% | 2174 |
|
|
2025
Q3 | $238K | Buy |
+2,895
| New | +$208K | ﹤0.01% | 2557 |
|
|
2025
Q1 | – | Sell |
-9,688
| Closed | -$743K | – | 2759 |
|
|
2024
Q4 | $743K | Buy |
9,688
+4,827
| +99% | +$417K | ﹤0.01% | 2050 |
|
|
2024
Q3 | $406K | Sell |
4,861
-95
| -2% | -$6.33K | ﹤0.01% | 2248 |
|
|
2024
Q2 | $274K | Sell |
4,956
-9,880
| -67% | -$537K | ﹤0.01% | 2374 |
|
|
2024
Q1 | $1.03M | Buy |
14,836
+3,951
| +36% | +$251K | ﹤0.01% | 1872 |
|
|
2023
Q4 | $604K | Buy |
+10,885
| New | +$491K | ﹤0.01% | 2036 |
|
|
2023
Q3 | – | Sell |
-10,941
| Closed | -$346K | – | 2616 |
|
|
2023
Q2 | $346K | Sell |
10,941
-9,004
| -45% | -$344K | ﹤0.01% | 2280 |
|
|
2023
Q1 | $615K | Sell |
19,945
-5,173
| -21% | -$157K | ﹤0.01% | 2052 |
|
|
2022
Q4 | $778K | Sell |
25,118
-784
| -3% | -$18K | ﹤0.01% | 1848 |
|
|
2022
Q3 | $486K | Sell |
25,902
-811
| -3% | -$15.5K | ﹤0.01% | 2096 |
|
|
2022
Q2 | $483K | Buy |
+26,713
| New | +$345K | ﹤0.01% | 2113 |
|
Other funds holding ACLX
SEI Investments's ACLX Position: Q2 2026 in Review
SEI Investments sold out of Arcellx (ACLX) in Q2 2026, closing a stake of 4,492 shares — an estimated $516K sold.
SEI Investments first reported a position in ACLX in Q2 2022 and held it in 13 quarters. The position peaked at $1.03M in Q1 2024. 2 funds tracked by Wall St. Rank hold ACLX as of Q2 2026.
- SEI Investments reported no remaining Arcellx position as of Q2 2026 after selling out during the quarter.
- SEI Investments sold 4,492 Arcellx shares in Q2 2026, an estimated $516K.
- SEI Investments first reported a position in Arcellx in Q2 2022 and held it in 13 quarters.
- SEI Investments's Arcellx position peaked at $1.03M in Q1 2024.
- 2 funds tracked by Wall St. Rank held Arcellx as of Q2 2026.
Based on SEI Investments's 13F filing for Q2 2026, filed 14 Aug 2026.