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Park West Asset Management’s Rambus RMBS Stock Holding History

Park West 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
2025
Q3 		– Sell
-660,000
Closed -$42.3M – 57
2025
Q2 		$42.3M Buy
660,000
+70,850
+12% +$3.8M 3.2% 13
2025
Q1 		$30.5M Buy
+589,150
New +$34.6M 2.46% 18
2024
Q2 		– Sell
-450,000
Closed -$27.8M – 49
2024
Q1 		$27.8M Buy
450,000
+240,000
+114% +$15.2M 1.98% 19
2023
Q4 		$14.3M Buy
+210,000
New +$13.1M 1.4% 22
2023
Q3 		– Sell
-335,000
Closed -$21.5M – 46
2023
Q2 		$21.5M Sell
335,000
-165,000
-33% -$9.09M 1.88% 16
2023
Q1 		$25.6M Sell
500,000
-43,700
-8% -$1.88M 2.29% 14
2022
Q4 		$19.5M Buy
+543,700
New +$18.4M 1.9% 17

Other funds holding RMBS

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
EIG
EdgePoint Investment Group Toronto, Ontario, Canada $12.5B AUM 31.7% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
AllianceBernstein
AllianceBernstein Nashville, Tennessee $309B AUM 23.92% 1-Year Est. Return

Park West Asset Management's RMBS Position: Q3 2025 in Review

Park West Asset Management sold out of Rambus (RMBS) in Q3 2025, closing a stake of 660,000 shares — an estimated $42.3M sold.

Park West Asset Management first reported a position in RMBS in Q4 2022 and held it in 7 quarters. The position peaked at $42.3M in Q2 2025. 513 funds tracked by Wall St. Rank hold RMBS as of Q3 2025.

  • Park West Asset Management reported no remaining Rambus position as of Q3 2025 after selling out during the quarter.
  • Park West Asset Management sold 660,000 Rambus shares in Q3 2025, an estimated $42.3M.
  • Park West Asset Management first reported a position in Rambus in Q4 2022 and held it in 7 quarters.
  • Park West Asset Management's Rambus position peaked at $42.3M in Q2 2025.
  • 513 funds tracked by Wall St. Rank held Rambus as of Q3 2025.

Based on Park West Asset Management's 13F filing for Q3 2025, filed 14 Nov 2025.