Jim Simons’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
Jim Simons's ACLX Position: Q2 2026 in Review
Jim Simons sold out of Arcellx (ACLX) in Q2 2026, closing a stake of 96,400 shares — an estimated $11.1M sold.
Jim Simons 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.
- Jim Simons reported no remaining Arcellx position as of Q2 2026 after selling out during the quarter.
- Jim Simons sold 96,400 Arcellx shares in Q2 2026, an estimated $11.1M.
- Jim Simons first reported a position in Arcellx in Q2 2022 and held it in 10 quarters.
- Jim Simons'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.