Sumitomo Mitsui Trust Group
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Sumitomo Mitsui Trust Group’s Rambus RMBS Stock Holding History

Sumitomo Mitsui Trust Group’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 		– Sell
-4,252
Closed -$564K – 1103
2026
Q2 		$564K Sell
4,252
-3,000
-41% -$390K ﹤0.01% 962
2026
Q1 		$624K Sell
7,252
-208
-3% -$20.8K ﹤0.01% 903
2025
Q4 		$685K Buy
7,460
+506
+7% +$49.8K ﹤0.01% 900
2025
Q3 		$725K Buy
+6,954
New +$536K ﹤0.01% 889
2024
Q2 		– Sell
-5,019
Closed -$310K – 1127
2024
Q1 		$310K Buy
5,019
+1,423
+40% +$90.1K ﹤0.01% 1067
2023
Q4 		$245K Buy
+3,596
New +$224K ﹤0.01% 1100

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
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
Principal Financial Group
Principal Financial Group Des Moines, Iowa $195B AUM 21.17% 1-Year Est. Return

Sumitomo Mitsui Trust Group's RMBS Position: Q3 2026 in Review

Sumitomo Mitsui Trust Group sold out of Rambus (RMBS) in Q3 2026, closing a stake of 4,252 shares — an estimated $564K sold.

Sumitomo Mitsui Trust Group first reported a position in RMBS in Q4 2023 and held it in 6 quarters. The position peaked at $725K in Q3 2025. 272 funds tracked by Wall St. Rank hold RMBS as of Q3 2026.

  • Sumitomo Mitsui Trust Group reported no remaining Rambus position as of Q3 2026 after selling out during the quarter.
  • Sumitomo Mitsui Trust Group sold 4,252 Rambus shares in Q3 2026, an estimated $564K.
  • Sumitomo Mitsui Trust Group first reported a position in Rambus in Q4 2023 and held it in 6 quarters.
  • Sumitomo Mitsui Trust Group's Rambus position peaked at $725K in Q3 2025.
  • 272 funds tracked by Wall St. Rank held Rambus as of Q3 2026.

Based on Sumitomo Mitsui Trust Group's 13F filing for Q3 2026, filed 29 Oct 2026.