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Tairen Capital’s Rambus RMBS Stock Holding History

Tairen 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
Q1 		$10.3M Buy
+120,000
New +$12M 1.12% 28
2025
Q4 		– Sell
-103,073
Closed -$10.7M – 81
2025
Q3 		$10.7M Buy
+103,073
New +$7.95M 1.16% 34

Other funds holding RMBS

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
EIG
EdgePoint Investment Group Toronto, Ontario, Canada $12.5B AUM 31.7% 1-Year Est. Return

Tairen Capital's RMBS Position: Q1 2026 in Review

Tairen Capital opened a new position in Rambus (RMBS) in Q1 2026: 120,000 shares worth $10.3M. The stake represents 1.12% of the portfolio and ranks #28 among its holdings. This is a return to the name: Tairen Capital previously reported a position in RMBS as recently as Q3 2025.

Tairen Capital first reported a position in RMBS in Q3 2025 and has held it in 2 quarters since. The position peaked at $10.7M in Q3 2025. 553 funds tracked by Wall St. Rank hold RMBS as of Q1 2026.

  • Tairen Capital held 120,000 shares of Rambus worth $10.3M as of Q1 2026.
  • Rambus was a new Tairen Capital position in Q1 2026.
  • Rambus made up 1.12% of Tairen Capital's portfolio in Q1 2026, its #28 holding.
  • Tairen Capital first reported a position in Rambus in Q3 2025 and has held it in 2 quarters since.
  • Tairen Capital's Rambus position peaked at $10.7M in Q3 2025.
  • 553 funds tracked by Wall St. Rank held Rambus as of Q1 2026.

Based on Tairen Capital's 13F filing for Q1 2026, filed 15 May 2026.