Pentwater Capital Management’s Arcellx ACLX Stock Holding History

Pentwater Capital 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 Q2	–	Sell	-2,870,000	Closed	-$330M	–	91
2026 Q1	$330M	Buy	+2,870,000	New	+$253M	1.71%	15

Other funds holding ACLX

DekaBank Deutsche Girozentrale Frankfurt, Germany $59.2B AUM 26.02% 1-Year Est. Return

IFP Advisors Tampa, Florida $5.54B AUM 27.43% 1-Year Est. Return

Pentwater Capital Management's ACLX Position: Q2 2026 in Review

Pentwater Capital Management sold out of Arcellx (ACLX) in Q2 2026, closing a stake of 2,870,000 shares — an estimated $330M sold.

Pentwater Capital Management first reported a position in ACLX in Q1 2026 and held it in 1 quarter. The position peaked at $330M in Q1 2026. 2 funds tracked by Wall St. Rank hold ACLX as of Q2 2026.

Pentwater Capital Management reported no remaining Arcellx position as of Q2 2026 after selling out during the quarter.
Pentwater Capital Management sold 2,870,000 Arcellx shares in Q2 2026, an estimated $330M.
Pentwater Capital Management first reported a position in Arcellx in Q1 2026 and held it in 1 quarter.
Pentwater Capital Management's Arcellx position peaked at $330M in Q1 2026.
2 funds tracked by Wall St. Rank held Arcellx as of Q2 2026.

Based on Pentwater Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.