California State Teachers Retirement System (CalSTRS)
ACLX

California State Teachers Retirement System (CalSTRS)’s Arcellx ACLX Stock Holding History

California State Teachers Retirement System (CalSTRS)’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 		$4.01M Buy
34,886
+7,771
+29% +$686K ﹤0.01% 1131
2025
Q4 		$1.77M Sell
27,115
-2,973
-10% -$237K ﹤0.01% 1484
2025
Q3 		$2.47M Buy
30,088
+1
+0% +$72 ﹤0.01% 1293
2025
Q2 		$1.98M Sell
30,087
-249
-0.8% -$15.5K ﹤0.01% 1374
2025
Q1 		$1.99M Sell
30,336
-625
-2% -$42.3K ﹤0.01% 1343
2024
Q4 		$2.37M Sell
30,961
-206
-0.7% -$17.8K ﹤0.01% 1314
2024
Q3 		$2.6M Sell
31,167
-897
-3% -$59.7K ﹤0.01% 1259
2024
Q2 		$1.77M Buy
32,064
+2,516
+9% +$137K ﹤0.01% 1444
2024
Q1 		$2.06M Sell
29,548
-2,610
-8% -$166K ﹤0.01% 1389
2023
Q4 		$1.78M Sell
32,158
-1,666
-5% -$75.2K ﹤0.01% 1508
2023
Q3 		$1.21M Sell
33,824
-52,189
-61% -$1.8M ﹤0.01% 1671
2023
Q2 		$2.72M Buy
86,013
+61,534
+251% +$2.35M ﹤0.01% 1313
2023
Q1 		$754K Sell
24,479
-140,325
-85% -$4.26M ﹤0.01% 2068
2022
Q4 		$5.11M Buy
164,804
+153,131
+1,312% +$3.51M 0.01% 940
2022
Q3 		$219K Buy
11,673
+7,470
+178% +$143K ﹤0.01% 2617
2022
Q2 		$76K Buy
4,203
+345
+9% +$4.45K ﹤0.01% 2955
2022
Q1 		$54K Buy
+3,858
New +$64.5K ﹤0.01% 3013

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 $915M AUM 209.71% 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

California State Teachers Retirement System (CalSTRS)'s ACLX Position: Q1 2026 in Review

California State Teachers Retirement System (CalSTRS) increased its Arcellx (ACLX) stake by 29% in Q1 2026, buying an estimated $686K and bringing the position to 34,886 shares worth $4.01M. The position accounts for ﹤0.01% of the portfolio, ranked #1131.

California State Teachers Retirement System (CalSTRS) first reported a position in ACLX in Q1 2022 and has held it in 17 quarters since. The position peaked at $5.11M in Q4 2022. 239 funds tracked by Wall St. Rank hold ACLX as of Q1 2026.

  • California State Teachers Retirement System (CalSTRS) held 34,886 shares of Arcellx worth $4.01M as of Q1 2026.
  • California State Teachers Retirement System (CalSTRS) bought 7,771 Arcellx shares in Q1 2026, an estimated $686K.
  • Arcellx made up ﹤0.01% of California State Teachers Retirement System (CalSTRS)'s portfolio in Q1 2026, its #1131 holding.
  • California State Teachers Retirement System (CalSTRS) first reported a position in Arcellx in Q1 2022 and has held it in 17 quarters since.
  • California State Teachers Retirement System (CalSTRS)'s Arcellx position peaked at $5.11M in Q4 2022.
  • 239 funds tracked by Wall St. Rank held Arcellx as of Q1 2026.

Based on California State Teachers Retirement System (CalSTRS)'s 13F filing for Q1 2026, filed 18 May 2026.