Marshall Wace’s Iris Energy IREN Stock Holding History

Marshall Wace’s Portfolio IREN Stock Details IREN Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	–	Sell	-861,500	Closed	-$32.5M	–	3449
2025 Q4	$32.5M	Buy	+861,500	New	+$44.4M	0.03%	469

Other funds holding IREN

Defiance ETFs New York $6.98B AUM

Situational Awareness San Francisco, California $13.7B AUM 334.5% 1-Year Est. Return

Citigroup New York $235B AUM 32.99% 1-Year Est. Return

BIT Capital Berlin, Germany $2.07B AUM 157.17% 1-Year Est. Return

D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return

Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return

VARA

Value Aligned Research Advisors Princeton, New Jersey $20.7B AUM 292.88% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Marex Group London $15.8B AUM 31.44% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Marshall Wace's IREN Position: Q1 2026 in Review

Marshall Wace reduced its Iris Energy (IREN) stake by 98% in Q1 2026, selling an estimated $57.8M and leaving 27,600 shares worth $946K. The position accounts for ﹤0.01% of the portfolio, ranked #2160.

Marshall Wace first reported a position in IREN in Q3 2022 and has held it in 14 quarters since. The position peaked at $95.4M in Q3 2025. 501 funds tracked by Wall St. Rank hold IREN as of Q1 2026.

Marshall Wace held 27,600 shares of Iris Energy worth $946K as of Q1 2026.
Marshall Wace sold 1,280,465 Iris Energy shares in Q1 2026, an estimated $57.8M.
Iris Energy made up ﹤0.01% of Marshall Wace's portfolio in Q1 2026, its #2160 holding.
Marshall Wace first reported a position in Iris Energy in Q3 2022 and has held it in 14 quarters since.
Marshall Wace's Iris Energy position peaked at $95.4M in Q3 2025.
501 funds tracked by Wall St. Rank held Iris Energy as of Q1 2026.

Based on Marshall Wace's 13F filing for Q1 2026, filed 15 May 2026.