RPAM
ACLX

Rhenman & Partners Asset Management’s Arcellx ACLX Stock Holding History

Rhenman & Partners Asset Management’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
-133,500
Closed -$8.7M – 87
2025
Q4 		$8.7M Buy
133,500
+68,250
+105% +$5.44M 0.81% 49
2025
Q3 		$5.36M Sell
65,250
-2,000
-3% -$144K 0.59% 51
2025
Q2 		$4.43M Buy
67,250
+23,750
+55% +$1.48M 0.56% 54
2025
Q1 		$2.85M Hold
43,500
– – 0.33% 63
2024
Q4 		$3.34M Buy
43,500
+11,500
+36% +$993K 0.34% 66
2024
Q3 		$2.67M Buy
+32,000
New +$2.13M 0.22% 84

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

Rhenman & Partners Asset Management's ACLX Position: Q1 2026 in Review

Rhenman & Partners Asset Management sold out of Arcellx (ACLX) in Q1 2026, closing a stake of 133,500 shares — an estimated $8.7M sold.

Rhenman & Partners Asset Management first reported a position in ACLX in Q3 2024 and held it in 6 quarters. The position peaked at $8.7M in Q4 2025. 239 funds tracked by Wall St. Rank hold ACLX as of Q1 2026.

  • Rhenman & Partners Asset Management reported no remaining Arcellx position as of Q1 2026 after selling out during the quarter.
  • Rhenman & Partners Asset Management sold 133,500 Arcellx shares in Q1 2026, an estimated $8.7M.
  • Rhenman & Partners Asset Management first reported a position in Arcellx in Q3 2024 and held it in 6 quarters.
  • Rhenman & Partners Asset Management's Arcellx position peaked at $8.7M in Q4 2025.
  • 239 funds tracked by Wall St. Rank held Arcellx as of Q1 2026.

Based on Rhenman & Partners Asset Management's 13F filing for Q1 2026, filed 14 May 2026.