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
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

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Sumitomo Mitsui Trust Group's RMBS Position: Q2 2026 in Review

Sumitomo Mitsui Trust Group reduced its Rambus (RMBS) stake by 41% in Q2 2026, selling an estimated $390K and leaving 4,252 shares worth $564K. The position accounts for ﹤0.01% of the portfolio, ranked #962.

Sumitomo Mitsui Trust Group first reported a position in RMBS in Q4 2023 and has held it in 6 quarters since. The position peaked at $725K in Q3 2025. 618 funds tracked by Wall St. Rank hold RMBS as of Q2 2026.

  • Sumitomo Mitsui Trust Group held 4,252 shares of Rambus worth $564K as of Q2 2026.
  • Sumitomo Mitsui Trust Group sold 3,000 Rambus shares in Q2 2026, an estimated $390K.
  • Rambus made up ﹤0.01% of Sumitomo Mitsui Trust Group's portfolio in Q2 2026, its #962 holding.
  • Sumitomo Mitsui Trust Group first reported a position in Rambus in Q4 2023 and has held it in 6 quarters since.
  • Sumitomo Mitsui Trust Group's Rambus position peaked at $725K in Q3 2025.
  • 618 funds tracked by Wall St. Rank held Rambus as of Q2 2026.

Based on Sumitomo Mitsui Trust Group's 13F filing for Q2 2026, filed 30 Jul 2026.