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SummitTX Capital’s Rambus RMBS Stock Holding History

SummitTX Capital’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 		$3.83M Sell
28,885
-51,789
-64% -$6.73M 0.1% 227
2026
Q1 		$6.94M Sell
80,674
-16,698
-17% -$1.67M 0.22% 117
2025
Q4 		$8.95M Buy
97,372
+29,984
+44% +$2.95M 0.27% 85
2025
Q3 		$7.02M Sell
67,388
-201,507
-75% -$15.5M 0.29% 74
2025
Q2 		$17.2M Buy
268,895
+40,731
+18% +$2.18M 0.74% 15
2025
Q1 		$11.8M Buy
+228,164
New +$13.4M 0.51% 32

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

SummitTX Capital's RMBS Position: Q2 2026 in Review

SummitTX Capital reduced its Rambus (RMBS) stake by 64% in Q2 2026, selling an estimated $6.73M and leaving 28,885 shares worth $3.83M. The position accounts for 0.1% of the portfolio, ranked #227.

SummitTX Capital first reported a position in RMBS in Q1 2025 and has held it in 6 quarters since. The position peaked at $17.2M in Q2 2025. 617 funds tracked by Wall St. Rank hold RMBS as of Q2 2026.

  • SummitTX Capital held 28,885 shares of Rambus worth $3.83M as of Q2 2026.
  • SummitTX Capital sold 51,789 Rambus shares in Q2 2026, an estimated $6.73M.
  • Rambus made up 0.1% of SummitTX Capital's portfolio in Q2 2026, its #227 holding.
  • SummitTX Capital first reported a position in Rambus in Q1 2025 and has held it in 6 quarters since.
  • SummitTX Capital's Rambus position peaked at $17.2M in Q2 2025.
  • 617 funds tracked by Wall St. Rank held Rambus as of Q2 2026.

Based on SummitTX Capital's 13F filing for Q2 2026, filed 14 Aug 2026.