Vanguard Group’s Rambus RMBS Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2025
Q4
$1.13B Sell
12,290,929
-410,844
-3% -$40.4M 0.02% 665
2025
Q3
$1.32B Buy
12,701,773
+140,948
+1% +$10.9M 0.02% 599
2025
Q2
$804M Buy
12,560,825
+118,413
+1% +$6.34M 0.01% 778
2025
Q1
$644M Sell
12,442,412
-152,567
-1% -$8.96M 0.01% 851
2024
Q4
$666M Buy
12,594,979
+31,645
+0.3% +$1.61M 0.01% 868
2024
Q3
$530M Buy
12,563,334
+774,156
+7% +$37.5M 0.01% 1013
2024
Q2
$693M Buy
11,789,178
+138,064
+1% +$7.89M 0.01% 803
2024
Q1
$720M Buy
11,651,114
+275,160
+2% +$17.4M 0.01% 798
2023
Q4
$776M Sell
11,375,954
-1,394,902
-11% -$86.9M 0.02% 727
2023
Q3
$712M Sell
12,770,856
-48,623
-0.4% -$2.76M 0.02% 726
2023
Q2
$823M Buy
12,819,479
+150,432
+1% +$8.28M 0.02% 674
2023
Q1
$649M Buy
12,669,047
+188,467
+2% +$8.1M 0.02% 754
2022
Q4
$447M Sell
12,480,580
-106,386
-0.8% -$3.6M 0.01% 946
2022
Q3
$320M Buy
12,586,966
+314,467
+3% +$7.86M 0.01% 1095
2022
Q2
$264M Buy
12,272,499
+241,619
+2% +$5.98M 0.01% 1262
2022
Q1
$384M Buy
12,030,880
+168,940
+1% +$4.68M 0.01% 1131
2021
Q4
$349M Buy
11,861,940
+52,720
+0.4% +$1.34M 0.01% 1240
2021
Q3
$262M Sell
11,809,220
-399,702
-3% -$9.41M 0.01% 1425
2021
Q2
$289M Buy
12,208,922
+224,767
+2% +$4.52M 0.01% 1384
2021
Q1
$233M Buy
11,984,155
+279,883
+2% +$5.62M 0.01% 1505
2020
Q4
$204M Buy
11,704,272
+63,081
+0.5% +$990K 0.01% 1453
2020
Q3
$159M Sell
11,641,191
-494,038
-4% -$7.02M 0.01% 1413
2020
Q2
$184M Sell
12,135,229
-12,392
-0.1% -$175K 0.01% 1321
2020
Q1
$135M Buy
12,147,621
+137,518
+1% +$1.9M 0.01% 1355
2019
Q4
$165M Buy
12,010,103
+134,791
+1% +$1.81M 0.01% 1485
2019
Q3
$156M Buy
11,875,312
+200,960
+2% +$2.52M 0.01% 1484
2019
Q2
$141M Buy
11,674,352
+590,445
+5% +$6.76M 0.01% 1562
2019
Q1
$116M Buy
11,083,907
+2,178,262
+24% +$20.9M ﹤0.01% 1677
2018
Q4
$68.3M Sell
8,905,645
-2,031,293
-19% -$17.7M ﹤0.01% 1870
2018
Q3
$119M Buy
10,936,938
+277,298
+3% +$3.37M ﹤0.01% 1715
2018
Q2
$134M Buy
10,659,640
+207,008
+2% +$2.8M 0.01% 1627
2018
Q1
$140M Buy
10,452,632
+204,772
+2% +$2.74M 0.01% 1521
2017
Q4
$146M Buy
10,247,860
+105,220
+1% +$1.51M 0.01% 1501
2017
Q3
$135M Buy
10,142,640
+106,413
+1% +$1.37M 0.01% 1524
2017
Q2
$115M Buy
10,036,227
+188,666
+2% +$2.32M 0.01% 1595
2017
Q1
$129M Buy
9,847,561
+513,316
+5% +$6.75M 0.01% 1508
2016
Q4
$129M Buy
9,334,245
+335,039
+4% +$4.34M 0.01% 1470
2016
Q3
$112M Buy
8,999,206
+158,431
+2% +$2.09M 0.01% 1480
2016
Q2
$107M Buy
8,840,775
+49,968
+0.6% +$609K 0.01% 1475
2016
Q1
$121M Sell
8,790,807
-117,948
-1% -$1.46M 0.01% 1346
2015
Q4
$103M Buy
8,908,755
+983,528
+12% +$11.4M 0.01% 1448
2015
Q3
$93.5M Buy
7,925,227
+116,320
+1% +$1.51M 0.01% 1481
2015
Q2
$113M Buy
7,808,907
+639,287
+9% +$9.14M 0.01% 1435
2015
Q1
$90.2M Buy
7,169,620
+292,166
+4% +$3.44M 0.01% 1568
2014
Q4
$76.3M Sell
6,877,454
-119,073
-2% -$1.35M 0.01% 1601
2014
Q3
$87.3M Buy
6,996,527
+65,660
+0.9% +$829K 0.01% 1454
2014
Q2
$99.1M Sell
6,930,867
-167,567
-2% -$2.07M 0.01% 1403
2014
Q1
$76.3M Buy
7,098,434
+242,501
+4% +$2.28M 0.01% 1542
2013
Q4
$64.9M Buy
6,855,933
+479,226
+8% +$4.32M 0.01% 1619
2013
Q3
$59.9M Buy
6,376,707
+292,593
+5% +$2.68M 0.01% 1593
2013
Q2
$52.3M Buy
+6,084,114
New +$45.4M 0.01% 1610

Other funds holding RMBS

Vanguard Group's RMBS Position: Q4 2025 in Review

Vanguard Group reduced its Rambus (RMBS) stake by 3.2% in Q4 2025, selling an estimated $40.4M and leaving 12,290,929 shares worth $1.13B. The position accounts for 0.02% of the portfolio, ranked #665.

Vanguard Group first reported a position in RMBS in Q2 2013 and has held it in 51 quarters since. The position peaked at $1.32B in Q3 2025. 552 funds tracked by Wall St. Rank hold RMBS as of Q4 2025.

  • Vanguard Group held 12,290,929 shares of Rambus worth $1.13B as of Q4 2025.
  • Vanguard Group sold 410,844 Rambus shares in Q4 2025, an estimated $40.4M.
  • Rambus made up 0.02% of Vanguard Group's portfolio in Q4 2025, its #665 holding.
  • Vanguard Group first reported a position in Rambus in Q2 2013 and has held it in 51 quarters since.
  • Vanguard Group's Rambus position peaked at $1.32B in Q3 2025.
  • 552 funds tracked by Wall St. Rank held Rambus as of Q4 2025.

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