Marshall Wace’s Rambus RMBS Stock Holding History

Marshall Wace’s Portfolio RMBS Stock Details RMBS Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$17.2K	Buy	+200	New	+$20K	﹤0.01%	3063

Other funds holding RMBS

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

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

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

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return

EIG

EdgePoint Investment Group Toronto, Ontario, Canada $12.5B AUM 31.7% 1-Year Est. Return

Marshall Wace's RMBS Position: Q1 2026 in Review

Marshall Wace reduced its Rambus (RMBS) stake by 66% in Q1 2026, selling an estimated $1.08M and leaving 5,526 shares worth $475K. The position accounts for ﹤0.01% of the portfolio, ranked #2476.

Marshall Wace first reported a position in RMBS in Q1 2014 and has held it in 13 quarters since. The position peaked at $7.83M in Q3 2024. 553 funds tracked by Wall St. Rank hold RMBS as of Q1 2026.

Marshall Wace held 5,526 shares of Rambus worth $475K as of Q1 2026.
Marshall Wace sold 10,774 Rambus shares in Q1 2026, an estimated $1.08M.
Rambus made up ﹤0.01% of Marshall Wace's portfolio in Q1 2026, its #2476 holding.
Marshall Wace first reported a position in Rambus in Q1 2014 and has held it in 13 quarters since.
Marshall Wace's Rambus position peaked at $7.83M in Q3 2024.
553 funds tracked by Wall St. Rank held Rambus as of Q1 2026.

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