Wellington Management Group
RMBS icon

Wellington Management Group’s Rambus RMBS Stock Holding History

Wellington Management Group’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
Q1 		$73.7M Sell
856,598
-77,336
-8% -$7.72M 0.01% 614
2025
Q4 		$85.8M Buy
933,934
+183,488
+24% +$18.1M 0.02% 584
2025
Q3 		$78.2M Sell
750,446
-456,320
-38% -$35.2M 0.01% 608
2025
Q2 		$77.3M Buy
1,206,766
+12,720
+1% +$682K 0.01% 592
2025
Q1 		$61.8M Sell
1,194,046
-54,399
-4% -$3.2M 0.01% 626
2024
Q4 		$66M Sell
1,248,445
-210,286
-14% -$10.7M 0.01% 638
2024
Q3 		$61.6M Sell
1,458,731
-4,744,367
-76% -$230M 0.01% 654
2024
Q2 		$364M Buy
6,203,098
+2,085,410
+51% +$119M 0.07% 253
2024
Q1 		$255M Buy
4,117,688
+183,765
+5% +$11.6M 0.05% 344
2023
Q4 		$268M Buy
3,933,923
+2,149,396
+120% +$134M 0.05% 333
2023
Q3 		$99.6M Sell
1,784,527
-87,271
-5% -$4.95M 0.02% 532
2023
Q2 		$120M Sell
1,871,798
-594,235
-24% -$32.7M 0.02% 501
2023
Q1 		$126M Sell
2,466,033
-266,119
-10% -$11.4M 0.03% 488
2022
Q4 		$97.9M Buy
2,732,152
+83,338
+3% +$2.82M 0.02% 528
2022
Q3 		$67.3M Buy
2,648,814
+259,307
+11% +$6.48M 0.01% 604
2022
Q2 		$51.4M Buy
2,389,507
+143,616
+6% +$3.55M 0.01% 669
2022
Q1 		$71.6M Sell
2,245,891
-144,321
-6% -$3.99M 0.01% 662
2021
Q4 		$70.2M Sell
2,390,212
-3,979
-0.2% -$101K 0.01% 728
2021
Q3 		$53.2M Sell
2,394,191
-44,608
-2% -$1.05M 0.01% 798
2021
Q2 		$57.8M Buy
2,438,799
+168,008
+7% +$3.38M 0.01% 779
2021
Q1 		$44.1M Buy
2,270,791
+66,332
+3% +$1.33M 0.01% 836
2020
Q4 		$38.5M Sell
2,204,459
-102,885
-4% -$1.61M 0.01% 852
2020
Q3 		$31.6M Buy
2,307,344
+317,961
+16% +$4.52M 0.01% 829
2020
Q2 		$30.2M Buy
1,989,383
+64,656
+3% +$911K 0.01% 826
2020
Q1 		$21.4M Buy
1,924,727
+1,244,713
+183% +$17.2M 0.01% 859
2019
Q4 		$9.37M Sell
680,014
-9,216
-1% -$124K ﹤0.01% 1179
2019
Q3 		$9.05M Buy
689,230
+6,697
+1% +$84K ﹤0.01% 1194
2019
Q2 		$8.22M Sell
682,533
-175
-0% -$2K ﹤0.01% 1270
2019
Q1 		$7.13M Buy
682,708
+35,344
+5% +$339K ﹤0.01% 1293
2018
Q4 		$4.96M Sell
647,364
-165,780
-20% -$1.44M ﹤0.01% 1381
2018
Q3 		$8.87M Sell
813,144
-1,148,064
-59% -$14M ﹤0.01% 1319
2018
Q2 		$24.6M Sell
1,961,208
-25,496
-1% -$345K 0.01% 1023
2018
Q1 		$26.7M Sell
1,986,704
-4,826
-0.2% -$64.6K 0.01% 973
2017
Q4 		$28.3M Buy
1,991,530
+1,089,940
+121% +$15.7M 0.01% 959
2017
Q3 		$12M Buy
+901,590
New +$11.6M ﹤0.01% 1220
2015
Q4 		– Sell
-273,404
Closed -$3.23M – 2230
2015
Q3 		$3.23M Sell
273,404
-242,435
-47% -$3.15M ﹤0.01% 1473
2015
Q2 		$7.47M Buy
515,839
+167,965
+48% +$2.4M ﹤0.01% 1296
2015
Q1 		$4.37M Sell
347,874
-132,718
-28% -$1.56M ﹤0.01% 1490
2014
Q4 		$5.33M Buy
480,592
+124,999
+35% +$1.42M ﹤0.01% 1419
2014
Q3 		$4.44M Buy
355,593
+132,958
+60% +$1.68M ﹤0.01% 1471
2014
Q2 		$3.18M Sell
222,635
-128,401
-37% -$1.59M ﹤0.01% 1572
2014
Q1 		$3.77M Buy
+351,036
New +$3.29M ﹤0.01% 1548

Other funds holding RMBS

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
EIG
EdgePoint Investment Group Toronto, Ontario, Canada $12.5B AUM 31.7% 1-Year Est. Return

Wellington Management Group's RMBS Position: Q1 2026 in Review

Wellington Management Group reduced its Rambus (RMBS) stake by 8.3% in Q1 2026, selling an estimated $7.72M and leaving 856,598 shares worth $73.7M. The position accounts for 0.01% of the portfolio, ranked #614.

Wellington Management Group first reported a position in RMBS in Q1 2014 and has held it in 42 quarters since. The position peaked at $364M in Q2 2024. 553 funds tracked by Wall St. Rank hold RMBS as of Q1 2026.

  • Wellington Management Group held 856,598 shares of Rambus worth $73.7M as of Q1 2026.
  • Wellington Management Group sold 77,336 Rambus shares in Q1 2026, an estimated $7.72M.
  • Rambus made up 0.01% of Wellington Management Group's portfolio in Q1 2026, its #614 holding.
  • Wellington Management Group first reported a position in Rambus in Q1 2014 and has held it in 42 quarters since.
  • Wellington Management Group's Rambus position peaked at $364M in Q2 2024.
  • 553 funds tracked by Wall St. Rank held Rambus as of Q1 2026.

Based on Wellington Management Group's 13F filing for Q1 2026, filed 15 May 2026.