JO
ACLX

John Overdeck’s Arcellx ACLX Stock Holding History

John Overdeck’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
2025
Q2 		– Sell
-6,900
Closed -$453K – 3154
2025
Q1 		$453K Hold
6,900
– – ﹤0.01% 2558
2024
Q4 		$529K Sell
6,900
-18,228
-73% -$1.57M ﹤0.01% 2511
2024
Q3 		$2.1M Sell
25,128
-9,333
-27% -$621K ﹤0.01% 1655
2024
Q2 		$1.9M Sell
34,461
-154,393
-82% -$8.39M ﹤0.01% 1581
2024
Q1 		$13.1M Buy
188,854
+43,580
+30% +$2.76M 0.03% 560
2023
Q4 		$8.06M Buy
145,274
+3,178
+2% +$143K 0.02% 767
2023
Q3 		$5.1M Sell
142,096
-183,997
-56% -$6.34M 0.01% 899
2023
Q2 		$10.3M Buy
326,093
+186,467
+134% +$7.13M 0.03% 635
2023
Q1 		$4.3M Sell
139,626
-15,380
-10% -$467K 0.01% 989
2022
Q4 		$4.8M Buy
+155,006
New +$3.56M 0.02% 879

Other funds holding ACLX

GS
Gilead Sciences Foster City, California $1.65B AUM 166.99% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
PBA
Paradigm Biocapital Advisors New York $5.34B AUM 380.18% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
NMC
NEA Management Company Timonium, Maryland $1.59B AUM 234.06% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
RCM
RA Capital Management Boston, Massachusetts $11.5B AUM 168.77% 1-Year Est. Return
VPC
Vestal Point Capital New York $4.28B AUM 239% 1-Year Est. Return
PA
Perceptive Advisors New York $6.66B AUM 360.84% 1-Year Est. Return
SOCM
SR One Capital Management Wayne, Pennsylvania $1.04B AUM 262.99% 1-Year Est. Return

John Overdeck's ACLX Position: Q2 2025 in Review

John Overdeck sold out of Arcellx (ACLX) in Q2 2025, closing a stake of 6,900 shares — an estimated $453K sold.

John Overdeck first reported a position in ACLX in Q4 2022 and held it in 10 quarters. The position peaked at $13.1M in Q1 2024. 202 funds tracked by Wall St. Rank hold ACLX as of Q2 2025.

  • John Overdeck reported no remaining Arcellx position as of Q2 2025 after selling out during the quarter.
  • John Overdeck sold 6,900 Arcellx shares in Q2 2025, an estimated $453K.
  • John Overdeck first reported a position in Arcellx in Q4 2022 and held it in 10 quarters.
  • John Overdeck's Arcellx position peaked at $13.1M in Q1 2024.
  • 202 funds tracked by Wall St. Rank held Arcellx as of Q2 2025.

Based on Two Sigma Investments's 13F filing for Q2 2025, filed 14 Aug 2025.