State of Wisconsin Investment Board
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State of Wisconsin Investment Board’s Rambus RMBS Stock Holding History

State of Wisconsin Investment Board’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 		$12.5M Sell
94,192
-1,176
-1% -$153K 0.03% 574
2026
Q1 		$8.2M Sell
95,368
-5,952
-6% -$594K 0.02% 760
2025
Q4 		$9.31M Sell
101,320
-13,674
-12% -$1.35M 0.02% 716
2025
Q3 		$12M Buy
114,994
+13,999
+14% +$1.08M 0.03% 551
2025
Q2 		$6.47M Sell
100,995
-1,876
-2% -$101K 0.02% 833
2025
Q1 		$5.33M Buy
102,871
+4,401
+4% +$259K 0.01% 900
2024
Q4 		$5.21M Buy
98,470
+10,299
+12% +$525K 0.01% 932
2024
Q3 		$3.72M Buy
88,171
+6,272
+8% +$304K 0.01% 1066
2024
Q2 		$4.81M Sell
81,899
-20,134
-20% -$1.15M 0.01% 946
2024
Q1 		$6.31M Buy
102,033
+28,767
+39% +$1.82M 0.02% 866
2023
Q4 		$5M Sell
73,266
-41,128
-36% -$2.56M 0.01% 977
2023
Q3 		$6.38M Buy
114,394
+22,515
+25% +$1.28M 0.02% 799
2023
Q2 		$5.9M Sell
91,879
-16,734
-15% -$921K 0.02% 883
2023
Q1 		$5.57M Sell
108,613
-3,265
-3% -$140K 0.02% 896
2022
Q4 		$4.01M Sell
111,878
-11,569
-9% -$391K 0.01% 1065
2022
Q3 		$3.14M Sell
123,447
-6,845
-5% -$171K 0.01% 1171
2022
Q2 		$2.8M Buy
130,292
+10,992
+9% +$272K 0.01% 1272
2022
Q1 		$3.8M Hold
119,300
– – 0.01% 1274
2021
Q4 		$3.51M Buy
+119,300
New +$3.03M 0.01% 1139
2021
Q1 		– Sell
-18,100
Closed -$316K – 2085
2020
Q4 		$316K Sell
18,100
-1,500
-8% -$23.5K ﹤0.01% 1800
2020
Q3 		$268K Buy
+19,600
New +$278K ﹤0.01% 1866

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

State of Wisconsin Investment Board's RMBS Position: Q2 2026 in Review

State of Wisconsin Investment Board reduced its Rambus (RMBS) stake by 1.2% in Q2 2026, selling an estimated $153K and leaving 94,192 shares worth $12.5M. The position accounts for 0.03% of the portfolio, ranked #574.

State of Wisconsin Investment Board first reported a position in RMBS in Q3 2020 and has held it in 21 quarters since. 614 funds tracked by Wall St. Rank hold RMBS as of Q2 2026.

  • State of Wisconsin Investment Board held 94,192 shares of Rambus worth $12.5M as of Q2 2026.
  • State of Wisconsin Investment Board sold 1,176 Rambus shares in Q2 2026, an estimated $153K.
  • Rambus made up 0.03% of State of Wisconsin Investment Board's portfolio in Q2 2026, its #574 holding.
  • State of Wisconsin Investment Board first reported a position in Rambus in Q3 2020 and has held it in 21 quarters since.
  • 614 funds tracked by Wall St. Rank held Rambus as of Q2 2026.

Based on State of Wisconsin Investment Board's 13F filing for Q2 2026, filed 14 Aug 2026.