Aigen Investment Management’s Rambus RMBS Stock Holding History

Aigen Investment Management’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	-2,636	Closed	-$242K	–	751
2025 Q4	$242K	Buy	+2,636	New	+$259K	0.06%	418
2025 Q1	–	Sell	-8,126	Closed	-$430K	–	990
2024 Q4	$430K	Sell	8,126 -26,771	-77%	-$1.36M	0.08%	375
2024 Q3	$1.47M	Buy	+34,897	New	+$1.69M	0.29%	84
2023 Q3	–	Sell	-23,941	Closed	-$1.54M	–	1042
2023 Q2	$1.54M	Buy	+23,941	New	+$1.32M	0.23%	126
2022 Q1	–	Sell	-12,154	Closed	-$350K	–	992
2021 Q4	$350K	Sell	12,154 -4,887	-29%	-$124K	0.02%	743
2021 Q3	$378K	Buy	+17,041	New	+$401K	0.07%	294
2021 Q1	–	Sell	-27,122	Closed	-$474K	–	845
2020 Q4	$474K	Buy	27,122 +11,184	+70%	+$175K	0.06%	406
2020 Q3	$218K	Buy	+15,938	New	+$226K	0.03%	619

Other funds holding RMBS

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return

EIG

EdgePoint Investment Group Toronto, Ontario, Canada $13.2B AUM 32.43% 1-Year Est. Return

Aigen Investment Management's RMBS Position: Q1 2026 in Review

Aigen Investment Management sold out of Rambus (RMBS) in Q1 2026, closing a stake of 2,636 shares — an estimated $242K sold.

Aigen Investment Management first reported a position in RMBS in Q3 2020 and held it in 8 quarters. The position peaked at $1.54M in Q2 2023. 557 funds tracked by Wall St. Rank hold RMBS as of Q1 2026.

Aigen Investment Management reported no remaining Rambus position as of Q1 2026 after selling out during the quarter.
Aigen Investment Management sold 2,636 Rambus shares in Q1 2026, an estimated $242K.
Aigen Investment Management first reported a position in Rambus in Q3 2020 and held it in 8 quarters.
Aigen Investment Management's Rambus position peaked at $1.54M in Q2 2023.
557 funds tracked by Wall St. Rank held Rambus as of Q1 2026.

Based on Aigen Investment Management's 13F filing for Q1 2026, filed 15 May 2026.