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Osterweis Capital Management’s Rambus RMBS Stock Holding History

Osterweis Capital Management’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 		– Sell
-84,930
Closed -$7.31M – 241
2026
Q1 		$7.31M Sell
84,930
-4,135
-5% -$413K 0.38% 75
2025
Q4 		$8.18M Sell
89,065
-62,495
-41% -$6.15M 0.35% 73
2025
Q3 		$15.8M Sell
151,560
-132,850
-47% -$10.2M 0.71% 45
2025
Q2 		$18.2M Sell
284,410
-1,895
-0.7% -$102K 0.87% 40
2025
Q1 		$14.8M Buy
286,305
+109,560
+62% +$6.44M 0.73% 48
2024
Q4 		$9.34M Buy
+176,745
New +$9.01M 0.43% 71

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

Osterweis Capital Management's RMBS Position: Q2 2026 in Review

Osterweis Capital Management sold out of Rambus (RMBS) in Q2 2026, closing a stake of 84,930 shares — an estimated $7.31M sold.

Osterweis Capital Management first reported a position in RMBS in Q4 2024 and held it in 6 quarters. The position peaked at $18.2M in Q2 2025. 617 funds tracked by Wall St. Rank hold RMBS as of Q2 2026.

  • Osterweis Capital Management reported no remaining Rambus position as of Q2 2026 after selling out during the quarter.
  • Osterweis Capital Management sold 84,930 Rambus shares in Q2 2026, an estimated $7.31M.
  • Osterweis Capital Management first reported a position in Rambus in Q4 2024 and held it in 6 quarters.
  • Osterweis Capital Management's Rambus position peaked at $18.2M in Q2 2025.
  • 617 funds tracked by Wall St. Rank held Rambus as of Q2 2026.

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