CenterBook Partners
RMBS icon

CenterBook Partners’s Rambus RMBS Stock Holding History

CenterBook 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
2026
Q3 		$4.44M Buy
41,557
+34,589
+496% +$3.34M 0.2% 123
2026
Q2 		$925K Buy
6,968
+1,556
+29% +$202K 0.05% 371
2026
Q1 		$466K Buy
+5,412
New +$540K 0.03% 498
2022
Q2 		– Sell
-10,564
Closed -$337K – 421
2022
Q1 		$337K Buy
10,564
+3,660
+53% +$101K 0.12% 267
2021
Q4 		$203K Buy
+6,904
New +$176K 0.12% 268

Other funds holding RMBS

Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return
Swedbank
Swedbank Stockholm, Sweden $118B AUM 40.52% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $608B AUM 32.77% 1-Year Est. Return
Bessemer Group
Bessemer Group Woodbridge, New Jersey $72.8B AUM 32.97% 1-Year Est. Return
Barclays
Barclays London, United Kingdom $500B AUM 36.84% 1-Year Est. Return
Fisher Asset Management
Fisher Asset Management Camas, Washington $348B AUM 26.9% 1-Year Est. Return
William Blair Investment Management
William Blair Investment Management Chicago, Illinois $30.8B AUM 33.92% 1-Year Est. Return
Congress Asset Management
Congress Asset Management Boston, Massachusetts $15.4B AUM 30.39% 1-Year Est. Return
Nykredit A/S
Nykredit A/S Nordhavn, Denmark $27.5B AUM

CenterBook Partners's RMBS Position: Q3 2026 in Review

CenterBook Partners increased its Rambus (RMBS) stake by 496% in Q3 2026, buying an estimated $3.34M and bringing the position to 41,557 shares worth $4.44M. The position accounts for 0.2% of the portfolio, ranked #123.

CenterBook Partners first reported a position in RMBS in Q4 2021 and has held it in 5 quarters since. 288 funds tracked by Wall St. Rank hold RMBS as of Q3 2026.

  • CenterBook Partners held 41,557 shares of Rambus worth $4.44M as of Q3 2026.
  • CenterBook Partners bought 34,589 Rambus shares in Q3 2026, an estimated $3.34M.
  • Rambus made up 0.2% of CenterBook Partners's portfolio in Q3 2026, its #123 holding.
  • CenterBook Partners first reported a position in Rambus in Q4 2021 and has held it in 5 quarters since.
  • 288 funds tracked by Wall St. Rank held Rambus as of Q3 2026.

Based on CenterBook Partners's 13F filing for Q3 2026, filed 2 Nov 2026.