IMC Chicago’s Rambus RMBS Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$8.05M Buy
93,600
+13,800
+17% +$1.38M ﹤0.01% 1440
2025
Q4
$7.33M Sell
79,800
-18,700
-19% -$1.84M ﹤0.01% 1451
2025
Q3
$10.3M Buy
98,500
+61,200
+164% +$4.72M ﹤0.01% 1133
2025
Q2
$2.39M Buy
37,300
+13,500
+57% +$723K ﹤0.01% 1873
2025
Q1
$1.23M Sell
23,800
-16,300
-41% -$957K ﹤0.01% 2138
2024
Q4
$2.12M Buy
40,100
+21,400
+114% +$1.09M ﹤0.01% 1830
2024
Q3
$790K Buy
18,700
+2,300
+14% +$111K ﹤0.01% 2163
2024
Q2
$964K Sell
16,400
-3,800
-19% -$217K ﹤0.01% 1980
2024
Q1
$1.25M Sell
20,200
-4,700
-19% -$297K ﹤0.01% 1627
2023
Q4
$1.7M Buy
24,900
+11,100
+80% +$691K ﹤0.01% 1268
2023
Q3
$770K Sell
13,800
-5,500
-28% -$312K ﹤0.01% 1310
2023
Q2
$1.24M Sell
19,300
-2,000
-9% -$110K ﹤0.01% 1003
2023
Q1
$1.09M Buy
+21,300
New +$915K ﹤0.01% 1011
2022
Q1
Sell
-15,100
Closed -$444K 1216
2021
Q4
$444K Buy
15,100
+3,400
+29% +$86.5K ﹤0.01% 1115
2021
Q3
$260K Sell
11,700
-1,100
-9% -$25.9K ﹤0.01% 1168
2021
Q2
$303K Sell
12,800
-10,200
-44% -$205K ﹤0.01% 1063
2021
Q1
$447K Buy
+23,000
New +$462K ﹤0.01% 968

Other funds holding RMBS

IMC Chicago's RMBS Position: Q4 2025 in Review

IMC Chicago sold out of Rambus (RMBS) in Q4 2025, closing a stake of 20,443 shares — an estimated $2.01M sold.

IMC Chicago first reported a position in RMBS in Q1 2024 and held it in 2 quarters. The position peaked at $2.13M in Q3 2025. 552 funds tracked by Wall St. Rank hold RMBS as of Q4 2025.

  • IMC Chicago reported no remaining Rambus position as of Q4 2025 after selling out during the quarter.
  • IMC Chicago sold 20,443 Rambus shares in Q4 2025, an estimated $2.01M.
  • IMC Chicago first reported a position in Rambus in Q1 2024 and held it in 2 quarters.
  • IMC Chicago's Rambus position peaked at $2.13M in Q3 2025.
  • 552 funds tracked by Wall St. Rank held Rambus as of Q4 2025.

Based on IMC Chicago's 13F filing for Q4 2025, filed 29 Jan 2026.