State of Wisconsin Investment Board
ACLX

State of Wisconsin Investment Board’s Arcellx ACLX Stock Holding History

State of Wisconsin Investment Board’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 		$2M Sell
17,434
-3,484
-17% -$308K ﹤0.01% 1403
2025
Q4 		$1.36M Sell
20,918
-1,320
-6% -$105K ﹤0.01% 1544
2025
Q3 		$1.83M Sell
22,238
-3,312
-13% -$238K ﹤0.01% 1401
2025
Q2 		$1.68M Sell
25,550
-12,553
-33% -$781K ﹤0.01% 1374
2025
Q1 		$2.5M Buy
38,103
+3,771
+11% +$255K 0.01% 1162
2024
Q4 		$2.63M Buy
34,332
+4,092
+14% +$354K 0.01% 1180
2024
Q3 		$2.53M Sell
30,240
-8,925
-23% -$594K 0.01% 1220
2024
Q2 		$2.16M Buy
39,165
+12,539
+47% +$682K 0.01% 1257
2024
Q1 		$1.85M Sell
26,626
-4,755
-15% -$302K ﹤0.01% 1269
2023
Q4 		$1.74M Buy
31,381
+3,721
+13% +$168K ﹤0.01% 1262
2023
Q3 		$992K Buy
27,660
+2,942
+12% +$101K ﹤0.01% 1396
2023
Q2 		$782K Buy
24,718
+10,955
+80% +$419K ﹤0.01% 1570
2023
Q1 		$424K Sell
13,763
-1,549
-10% -$47K ﹤0.01% 1942
2022
Q4 		$474K Buy
+15,312
New +$351K ﹤0.01% 1918

Other funds holding ACLX

GS
Gilead Sciences Foster City, California $1.65B AUM 166.99% 1-Year Est. Return
PBA
Paradigm Biocapital Advisors New York $4.89B AUM 251.12% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 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 $1.04B AUM 262.99% 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

State of Wisconsin Investment Board's ACLX Position: Q1 2026 in Review

State of Wisconsin Investment Board reduced its Arcellx (ACLX) stake by 17% in Q1 2026, selling an estimated $308K and leaving 17,434 shares worth $2M. The position accounts for ﹤0.01% of the portfolio, ranked #1403.

State of Wisconsin Investment Board first reported a position in ACLX in Q4 2022 and has held it in 14 quarters since. The position peaked at $2.63M in Q4 2024. 239 funds tracked by Wall St. Rank hold ACLX as of Q1 2026.

  • State of Wisconsin Investment Board held 17,434 shares of Arcellx worth $2M as of Q1 2026.
  • State of Wisconsin Investment Board sold 3,484 Arcellx shares in Q1 2026, an estimated $308K.
  • Arcellx made up ﹤0.01% of State of Wisconsin Investment Board's portfolio in Q1 2026, its #1403 holding.
  • State of Wisconsin Investment Board first reported a position in Arcellx in Q4 2022 and has held it in 14 quarters since.
  • State of Wisconsin Investment Board's Arcellx position peaked at $2.63M in Q4 2024.
  • 239 funds tracked by Wall St. Rank held Arcellx as of Q1 2026.

Based on State of Wisconsin Investment Board's 13F filing for Q1 2026, filed 15 May 2026.