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Polar Asset Management Partners’s Rambus RMBS Stock Holding History

Polar Asset Management Partners’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
-100,170
Closed -$6.41M – 786
2025
Q2 		$6.41M Buy
+100,170
New +$5.37M 0.1% 165

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Vanguard Group
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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

Polar Asset Management Partners's RMBS Position: Q3 2025 in Review

Polar Asset Management Partners sold out of Rambus (RMBS) in Q3 2025, closing a stake of 100,170 shares — an estimated $6.41M sold.

Polar Asset Management Partners first reported a position in RMBS in Q2 2025 and held it in 1 quarter. The position peaked at $6.41M in Q2 2025. 513 funds tracked by Wall St. Rank hold RMBS as of Q3 2025.

  • Polar Asset Management Partners reported no remaining Rambus position as of Q3 2025 after selling out during the quarter.
  • Polar Asset Management Partners sold 100,170 Rambus shares in Q3 2025, an estimated $6.41M.
  • Polar Asset Management Partners first reported a position in Rambus in Q2 2025 and held it in 1 quarter.
  • Polar Asset Management Partners's Rambus position peaked at $6.41M in Q2 2025.
  • 513 funds tracked by Wall St. Rank held Rambus as of Q3 2025.

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