Simplex Trading’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
$163K Sell
1,900
-3,100
-62% -$309K ﹤0.01% 4542
2025
Q4
$459K Sell
5,000
-20,600
-80% -$2.03M ﹤0.01% 3384
2025
Q3
$2.67M Sell
25,600
-79,900
-76% -$6.16M ﹤0.01% 2034
2025
Q2
$6.75M Buy
105,500
+102,700
+3,668% +$5.5M ﹤0.01% 1139
2025
Q1
$144K Sell
2,800
-46,000
-94% -$2.7M ﹤0.01% 4670
2024
Q4
$2.58M Sell
48,800
-32,600
-40% -$1.66M ﹤0.01% 1984
2024
Q3
$3.44M Buy
81,400
+32,400
+66% +$1.57M ﹤0.01% 1809
2024
Q2
$2.88M Sell
49,000
-27,000
-36% -$1.54M ﹤0.01% 1873
2024
Q1
$4.7M Buy
76,000
+30,500
+67% +$1.93M ﹤0.01% 1649
2023
Q4
$3.1M Sell
45,500
-42,700
-48% -$2.66M ﹤0.01% 1978
2023
Q3
$4.92M Sell
88,200
-28,400
-24% -$1.61M ﹤0.01% 1364
2023
Q2
$7.48M Buy
116,600
+87,300
+298% +$4.81M 0.01% 1067
2023
Q1
$1.5M Buy
29,300
+22,700
+344% +$975K ﹤0.01% 2195
2022
Q4
$236K Sell
6,600
-16,800
-72% -$568K ﹤0.01% 4024
2022
Q3
$594K Sell
23,400
-300
-1% -$7.5K ﹤0.01% 3264
2022
Q2
$509K Buy
23,700
+16,300
+220% +$403K ﹤0.01% 3422
2022
Q1
$235K Sell
7,400
-16,700
-69% -$462K ﹤0.01% 4925
2021
Q4
$708K Buy
24,100
+11,300
+88% +$287K ﹤0.01% 3349
2021
Q3
$299K Hold
12,800
﹤0.01% 4913
2021
Q2
$303K Buy
12,800
+12,704
+13,233% +$256K ﹤0.01% 4971
2021
Q1
$186K Sell
96
-950
-91% -$19.1K ﹤0.01% 4851
2020
Q4
$1.83M Buy
1,046
+957
+1,075% +$15K ﹤0.01% 1869
2020
Q3
$121K Buy
89
+60
+207% +$852 ﹤0.01% 4686
2020
Q2
$44K Sell
29
-8
-22% -$113 ﹤0.01% 5616
2020
Q1
$41K Sell
37
-21
-36% -$291 ﹤0.01% 5334
2019
Q4
$79K Buy
58
+13
+29% +$175 ﹤0.01% 4751
2019
Q3
$59K Buy
45
+23
+105% +$288 ﹤0.01% 4857
2019
Q2
$26K Buy
22
+21
+2,100% +$241 ﹤0.01% 5395
2019
Q1
$1K Sell
1
-19
-95% -$182 ﹤0.01% 6931
2018
Q4
$15K Buy
20
+15
+300% +$130 ﹤0.01% 5577
2018
Q3
$5K Buy
+5
New +$61 ﹤0.01% 6777
2017
Q2
Sell
-246
Closed -$8K 6684
2017
Q1
$8K Sell
246
-116
-32% -$1.52K ﹤0.01% 4187
2016
Q4
$6K Sell
362
-1
-0.3% -$13 ﹤0.01% 4219
2016
Q3
$50K Buy
363
+190
+110% +$2.51K ﹤0.01% 2111
2016
Q2
$10K Buy
+173
New +$2.11K ﹤0.01% 3616
2016
Q1
Sell
-126
Closed -$25K 6130
2015
Q4
$25K Sell
126
-42
-25% -$485 ﹤0.01% 2511
2015
Q3
$33K Buy
+168
New +$2.18K ﹤0.01% 2319
2015
Q1
Sell
-28
Closed -$1K 5480
2014
Q4
$1K Buy
+28
New +$317 ﹤0.01% 4237

Other funds holding RMBS

Simplex Trading's RMBS Position: Q1 2026 in Review

Simplex Trading sold out of Rambus (RMBS) in Q1 2026, closing a stake of 3,884 shares — an estimated $388K sold.

Simplex Trading first reported a position in RMBS in Q4 2014 and held it in 23 quarters. The position peaked at $1.74M in Q3 2023. 553 funds tracked by Wall St. Rank hold RMBS as of Q1 2026.

  • Simplex Trading reported no remaining Rambus position as of Q1 2026 after selling out during the quarter.
  • Simplex Trading sold 3,884 Rambus shares in Q1 2026, an estimated $388K.
  • Simplex Trading first reported a position in Rambus in Q4 2014 and held it in 23 quarters.
  • Simplex Trading's Rambus position peaked at $1.74M in Q3 2023.
  • 553 funds tracked by Wall St. Rank held Rambus as of Q1 2026.

Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.