Marshall Wace’s Ioneer IONR Stock Holding History

Marshall Wace’s Portfolio IONR Stock Details IONR Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	–	Sell	-165,231	Closed	-$793K	–	3445
2025 Q4	$793K	Buy	+165,231	New	+$810K	﹤0.01%	2048

Other funds holding IONR

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

IWC

Integrated Wealth Concepts Waltham, Massachusetts $12.5B AUM 18.49% 1-Year Est. Return

UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return

Citigroup New York $303B AUM 53.02% 1-Year Est. Return

Cambridge Investment Research Advisors Fairfield, Iowa $44.6B AUM 28.94% 1-Year Est. Return

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

Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

Luther King Capital Management (LKCM) Fort Worth, Texas $23.1B AUM 21.31% 1-Year Est. Return

Susquehanna International Group Bala Cynwyd, Pennsylvania $893B AUM 36.07% 1-Year Est. Return

JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

Marshall Wace's IONR Position: Q1 2026 in Review

Marshall Wace sold out of Ioneer (IONR) in Q1 2026, closing a stake of 165,231 shares — an estimated $793K sold.

Marshall Wace first reported a position in IONR in Q4 2025 and held it in 1 quarter. The position peaked at $793K in Q4 2025. 22 funds tracked by Wall St. Rank hold IONR as of Q1 2026.

Marshall Wace reported no remaining Ioneer position as of Q1 2026 after selling out during the quarter.
Marshall Wace sold 165,231 Ioneer shares in Q1 2026, an estimated $793K.
Marshall Wace first reported a position in Ioneer in Q4 2025 and held it in 1 quarter.
Marshall Wace's Ioneer position peaked at $793K in Q4 2025.
22 funds tracked by Wall St. Rank held Ioneer as of Q1 2026.

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