Congress Asset Management’s Rambus RMBS Stock Holding History

Congress Asset 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 Q3	$38.1M	Sell	356,996 -420,997	-54%	-$40.6M	0.25%	109
2026 Q2	$103M	Sell	777,993 -497,985	-39%	-$64.8M	0.64%	59
2026 Q1	$110M	Sell	1,275,978 -134,637	-10%	-$13.4M	0.79%	32
2025 Q4	$130M	Buy	1,410,615 +63,430	+5%	+$6.24M	0.91%	26
2025 Q3	$140M	Buy	1,347,185 +70,259	+6%	+$5.42M	0.93%	30
2025 Q2	$81.7M	Buy	1,276,926 +77,362	+6%	+$4.15M	0.56%	69
2025 Q1	$62.1M	Buy	1,199,564 +333,538	+39%	+$19.6M	0.46%	86
2024 Q4	$45.8M	Buy	+866,026	New	+$44.1M	0.31%	109

Other funds holding RMBS

BlackRock New York $6.79T AUM 37.06% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.32T AUM 44.66% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.21T AUM

Invesco Atlanta, Georgia $1.27T AUM 50.62% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.76T AUM

State Street Boston, Massachusetts $3.44T AUM 36.12% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return

Swedbank Stockholm, Sweden $118B AUM 40.52% 1-Year Est. Return

Morgan Stanley New York $1.96T AUM 27.49% 1-Year Est. Return

Congress Asset Management's RMBS Position: Q3 2026 in Review

Congress Asset Management reduced its Rambus (RMBS) stake by 54% in Q3 2026, selling an estimated $40.6M and leaving 356,996 shares worth $38.1M. The position accounts for 0.25% of the portfolio, ranked #109.

Congress Asset Management first reported a position in RMBS in Q4 2024 and has held it in 8 quarters since. The position peaked at $140M in Q3 2025. 453 funds tracked by Wall St. Rank hold RMBS as of Q3 2026.

Congress Asset Management held 356,996 shares of Rambus worth $38.1M as of Q3 2026.
Congress Asset Management sold 420,997 Rambus shares in Q3 2026, an estimated $40.6M.
Rambus made up 0.25% of Congress Asset Management's portfolio in Q3 2026, its #109 holding.
Congress Asset Management first reported a position in Rambus in Q4 2024 and has held it in 8 quarters since.
Congress Asset Management's Rambus position peaked at $140M in Q3 2025.
453 funds tracked by Wall St. Rank held Rambus as of Q3 2026.

Based on Congress Asset Management's 13F filing for Q3 2026, filed 6 Oct 2026.