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Driehaus Capital Management’s Rambus RMBS Stock Holding History

Driehaus 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 		$19.2M Sell
144,875
-29,078
-17% -$3.78M 0.11% 236
2026
Q1 		$15M Sell
173,953
-780,211
-82% -$77.9M 0.11% 235
2025
Q4 		$87.7M Buy
+954,164
New +$93.9M 0.6% 42
2024
Q1 		– Sell
-772,842
Closed -$52.7M – 439
2023
Q4 		$52.7M Buy
772,842
+163,851
+27% +$10.2M 0.64% 34
2023
Q3 		$34M Buy
608,991
+1,368
+0.2% +$77.6K 0.44% 62
2023
Q2 		$39M Buy
607,623
+36,179
+6% +$1.99M 0.49% 52
2023
Q1 		$29.3M Buy
571,444
+191,808
+51% +$8.24M 0.41% 63
2022
Q4 		$13.6M Buy
+379,636
New +$12.8M 0.2% 159
2022
Q2 		– Sell
-771,153
Closed -$24.6M – 424
2022
Q1 		$24.6M Buy
+771,153
New +$21.3M 0.3% 115

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

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

Driehaus Capital Management reduced its Rambus (RMBS) stake by 17% in Q2 2026, selling an estimated $3.78M and leaving 144,875 shares worth $19.2M. The position accounts for 0.11% of the portfolio, ranked #236.

Driehaus Capital Management first reported a position in RMBS in Q1 2022 and has held it in 9 quarters since. The position peaked at $87.7M in Q4 2025. 618 funds tracked by Wall St. Rank hold RMBS as of Q2 2026.

  • Driehaus Capital Management held 144,875 shares of Rambus worth $19.2M as of Q2 2026.
  • Driehaus Capital Management sold 29,078 Rambus shares in Q2 2026, an estimated $3.78M.
  • Rambus made up 0.11% of Driehaus Capital Management's portfolio in Q2 2026, its #236 holding.
  • Driehaus Capital Management first reported a position in Rambus in Q1 2022 and has held it in 9 quarters since.
  • Driehaus Capital Management's Rambus position peaked at $87.7M in Q4 2025.
  • 618 funds tracked by Wall St. Rank held Rambus as of Q2 2026.

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