BAMCO Inc
ACLX

BAMCO Inc’s Arcellx ACLX Stock Holding History

BAMCO Inc’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 		– Sell
-609,697
Closed -$39.8M – 328
2025
Q4 		$39.8M Buy
609,697
+59,461
+11% +$4.74M 0.11% 154
2025
Q3 		$45.2M Buy
550,236
+32,227
+6% +$2.32M 0.12% 149
2025
Q2 		$34.1M Buy
518,009
+50,748
+11% +$3.16M 0.09% 168
2025
Q1 		$30.7M Buy
467,261
+118,928
+34% +$8.06M 0.09% 166
2024
Q4 		$26.7M Buy
348,333
+5,501
+2% +$475K 0.07% 181
2024
Q3 		$28.6M Buy
342,832
+72
+0% +$4.79K 0.08% 182
2024
Q2 		$18.9M Buy
342,760
+93,767
+38% +$5.1M 0.05% 209
2024
Q1 		$17.3M Buy
248,993
+185,493
+292% +$11.8M 0.05% 217
2023
Q4 		$3.52M Buy
63,500
+13,500
+27% +$609K 0.01% 277
2023
Q3 		$1.79M Buy
50,000
+10,000
+25% +$345K 0.01% 287
2023
Q2 		$1.26M Buy
+40,000
New +$1.53M ﹤0.01% 306

Other funds holding ACLX

GS
Gilead Sciences Foster City, California $2.12B AUM 143.53% 1-Year Est. Return
PBA
Paradigm Biocapital Advisors New York $4.89B AUM 251.12% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 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

BAMCO Inc's ACLX Position: Q1 2026 in Review

BAMCO Inc sold out of Arcellx (ACLX) in Q1 2026, closing a stake of 609,697 shares — an estimated $39.8M sold.

BAMCO Inc first reported a position in ACLX in Q2 2023 and held it in 11 quarters. The position peaked at $45.2M in Q3 2025. 239 funds tracked by Wall St. Rank hold ACLX as of Q1 2026.

  • BAMCO Inc reported no remaining Arcellx position as of Q1 2026 after selling out during the quarter.
  • BAMCO Inc sold 609,697 Arcellx shares in Q1 2026, an estimated $39.8M.
  • BAMCO Inc first reported a position in Arcellx in Q2 2023 and held it in 11 quarters.
  • BAMCO Inc's Arcellx position peaked at $45.2M in Q3 2025.
  • 239 funds tracked by Wall St. Rank held Arcellx as of Q1 2026.

Based on BAMCO Inc's 13F filing for Q1 2026, filed 15 May 2026.