Calamos Advisors’s Rambus RMBS Stock Holding History

Calamos Advisors’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	–	Sell	-6,316	Closed	-$580K	–	1265
2025 Q4	$580K	Sell	6,316 -3,026	-32%	-$298K	﹤0.01%	746
2025 Q3	$973K	Buy	+9,342	New	+$720K	﹤0.01%	710

Other funds holding RMBS

BlackRock New York $6.73T AUM 46.02% 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 $3.37T AUM 44.26% 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

Calamos Advisors's RMBS Position: Q1 2026 in Review

Calamos Advisors sold out of Rambus (RMBS) in Q1 2026, closing a stake of 6,316 shares — an estimated $580K sold.

Calamos Advisors first reported a position in RMBS in Q3 2025 and held it in 2 quarters. The position peaked at $973K in Q3 2025. 554 funds tracked by Wall St. Rank hold RMBS as of Q1 2026.

Calamos Advisors reported no remaining Rambus position as of Q1 2026 after selling out during the quarter.
Calamos Advisors sold 6,316 Rambus shares in Q1 2026, an estimated $580K.
Calamos Advisors first reported a position in Rambus in Q3 2025 and held it in 2 quarters.
Calamos Advisors's Rambus position peaked at $973K in Q3 2025.
554 funds tracked by Wall St. Rank held Rambus as of Q1 2026.

Based on Calamos Advisors's 13F filing for Q1 2026, filed 4 May 2026.