Atom Investors’s Rambus RMBS Stock Holding History

Atom Investors’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
2025 Q4	–	Sell	-4,292	Closed	-$447K	–	774
2025 Q3	$447K	Buy	+4,292	New	+$331K	0.03%	375
2021 Q3	–	Sell	-16,962	Closed	-$402K	–	373
2021 Q2	$402K	Buy	+16,962	New	+$341K	0.05%	182

Other funds holding RMBS

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

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

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

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

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

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

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

AllianceBernstein Nashville, Tennessee $309B AUM 23.92% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Norges Bank Oslo, Norway $935B AUM

Atom Investors's RMBS Position: Q4 2025 in Review

Atom Investors sold out of Rambus (RMBS) in Q4 2025, closing a stake of 4,292 shares — an estimated $447K sold.

Atom Investors first reported a position in RMBS in Q2 2021 and held it in 2 quarters. The position peaked at $447K in Q3 2025. 552 funds tracked by Wall St. Rank hold RMBS as of Q4 2025.

Atom Investors reported no remaining Rambus position as of Q4 2025 after selling out during the quarter.
Atom Investors sold 4,292 Rambus shares in Q4 2025, an estimated $447K.
Atom Investors first reported a position in Rambus in Q2 2021 and held it in 2 quarters.
Atom Investors's Rambus position peaked at $447K in Q3 2025.
552 funds tracked by Wall St. Rank held Rambus as of Q4 2025.

Based on Atom Investors's 13F filing for Q4 2025, filed 17 Feb 2026.