RAMBUS INC - COMMON STOCK (RMBS) Institutional Ownership

13F Institutional Holders and Ownership History from Q1 2014 to Q4 2025

Type / Class
Equity / COMMON STOCK
Symbol
RMBS on Nasdaq
Shares outstanding
107,712,060
Price per share
$121.60
All holders as of 31 Dec 2025
Q4 2025
Total 13F shares
99,803,522
Total reported value
$9,176,146,245
% of total 13F portfolios
0%
Share change
+799,760
Value change
+$52,632,699
Number of holders
545
Price from insider filings
$121.60
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of RAMBUS INC - COMMON STOCK (RMBS) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
BlackRock, Inc. 14% $1,383,886,224 15,060,232 BlackRock, Inc. 31 Dec 2025
PRICE T ROWE ASSOCIATES INC /MD/ 5% +15% $502,907,608 +$64,638,850 5,385,603 +15% T. Rowe Price Associates, Inc. 31 Dec 2025

As of 31 Dec 2025, 545 institutional investors reported holding 99,803,522 shares of RAMBUS INC - COMMON STOCK (RMBS). This represents 93% of the company’s total 107,712,060 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of RAMBUS INC - COMMON STOCK (RMBS) together control 66% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
BlackRock, Inc. 15% 16,275,186 +3% 0.03% $1,495,526,797
VANGUARD GROUP INC 11% 12,290,929 -3.2% 0.02% $1,129,413,466
PRICE T ROWE ASSOCIATES INC /MD/ 5% 5,385,570 +2.7% 0.05% $494,881,000
STATE STREET CORP 3.9% 4,251,563 -3.2% 0.01% $390,676,124
Invesco Ltd. 3.9% 4,148,653 +71% 0.06% $381,219,724
GEODE CAPITAL MANAGEMENT, LLC 2.6% 2,842,715 +3.4% 0.02% $261,255,537
JPMORGAN CHASE & CO 1.9% 2,065,343 -19% 0.01% $189,784,395
ALLIANCEBERNSTEIN L.P. 1.8% 1,900,308 +4.3% 0.06% $174,619,302
DIMENSIONAL FUND ADVISORS LP 1.8% 1,893,528 -1.8% 0.04% $174,012,021
NORGES BANK 1.6% 1,701,551 0.02% $156,355,521
FMR LLC 1.5% 1,587,029 +16% 0.01% $145,832,125
CONGRESS ASSET MANAGEMENT CO 1.3% 1,410,615 +4.7% 0.91% $129,621,412
EdgePoint Investment Group Inc. 1.3% 1,406,686 -48% 1.1% $129,260,377
Swedbank AB 1.3% 1,363,000 -20% 0.12% $125,246,070
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 1.2% 1,327,693 -0.84% 0.02% $122,001,710
NORTHERN TRUST CORP 1.2% 1,315,551 -5.1% 0.02% $120,885,981
NEUBERGER BERMAN GROUP LLC 1.2% 1,305,951 -12% 0.09% $120,147,476
BANK OF AMERICA CORP /DE/ 1.2% 1,249,642 -19% 0.01% $114,829,604
GOLDMAN SACHS GROUP INC 1.1% 1,194,391 +0.61% 0.02% $109,752,560
Nuveen, LLC 1% 1,102,090 -14% 0.03% $101,271,050
Bank of New York Mellon Corp 1% 1,094,156 -32% 0.02% $100,542,005
BARCLAYS PLC 0.95% 1,022,984 +14% 0.04% $94,002,000
Driehaus Capital Management LLC 0.89% 954,164 0.6% $87,678,130
Rafferty Asset Management, LLC 0.87% 935,784 +3.8% 0.3% $85,989,192
WELLINGTON MANAGEMENT GROUP LLP 0.87% 933,934 +24% 0.02% $85,819,195

Institutional Holders of RAMBUS INC - COMMON STOCK (RMBS) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 99,803,522 $9,176,146,245 +$52,632,699 $91.89 545
2025 Q3 98,739,868 $10,288,984,009 +$329,462,922 $104.20 509
2025 Q2 97,175,851 $6,221,678,375 +$55,183,928 $64.02 454
2025 Q1 96,333,210 $4,988,963,649 +$67,491,508 $51.78 407
2024 Q4 95,008,872 $5,022,794,265 +$134,234,343 $52.86 388
2024 Q3 92,291,982 $3,897,859,273 -$134,755,356 $42.22 366
2024 Q2 96,165,643 $5,648,162,967 -$55,372,554 $58.76 360
2024 Q1 96,963,181 $5,982,121,446 -$4,927,304 $61.81 372
2023 Q4 96,952,912 $6,617,035,509 -$48,558,518 $68.25 393
2023 Q3 98,159,619 $5,476,899,149 +$107,718,089 $55.79 346
2023 Q2 95,388,175 $6,120,379,053 +$115,519,537 $64.17 387
2023 Q1 93,847,033 $4,809,816,902 +$165,414,108 $51.26 330
2022 Q4 91,262,173 $3,269,593,067 -$57,969,038 $35.82 298
2022 Q3 93,543,335 $2,378,168,249 -$64,449,169 $25.42 231
2022 Q2 96,128,813 $2,066,646,677 +$42,078,444 $21.49 242
2022 Q1 93,594,821 $2,980,992,723 -$56,899,496 $31.89 263
2021 Q4 95,124,067 $2,794,059,734 +$65,910,581 $29.39 248
2021 Q3 93,314,238 $2,071,337,938 -$74,736,458 $22.20 229
2021 Q2 97,063,344 $2,300,634,115 +$38,471,787 $23.71 215
2021 Q1 95,752,564 $1,861,230,562 +$2,038,981 $19.44 207
2020 Q4 95,947,500 $1,675,889,341 +$40,079,526 $17.46 212
2020 Q3 95,116,912 $1,302,181,717 -$10,592,348 $13.69 182
2020 Q2 95,342,666 $1,448,975,078 +$22,552,264 $15.20 194
2020 Q1 94,020,413 $1,043,785,850 -$5,966,355 $11.10 172
2019 Q4 94,311,613 $1,299,381,196 +$46,199,174 $13.78 172
2019 Q3 91,055,377 $1,195,163,763 +$26,935,043 $13.12 189
2019 Q2 89,159,183 $1,073,786,472 +$41,580,177 $12.04 171
2019 Q1 87,569,802 $915,192,462 +$42,215,418 $10.45 167
2018 Q4 86,675,606 $664,908,892 -$4,104,492 $7.67 178
2018 Q3 85,840,493 $936,326,817 -$30,257,775 $10.91 168
2018 Q2 88,656,348 $1,111,818,853 -$14,806,564 $12.54 162
2018 Q1 89,778,730 $1,205,762,402 -$4,247,633 $13.43 177
2017 Q4 89,864,868 $1,277,854,431 +$52,931,498 $14.22 162
2017 Q3 86,293,566 $1,152,176,940 +$16,086,468 $13.35 161
2017 Q2 85,197,808 $973,964,728 -$52,189,574 $11.43 156
2017 Q1 89,153,485 $1,171,427,473 +$175,878,231 $13.14 152
2016 Q4 88,952,003 $1,224,712,438 +$16,150,260 $13.77 163
2016 Q3 87,928,884 $1,098,440,888 +$47,204,739 $12.50 168
2016 Q2 84,184,580 $1,017,276,208 -$37,854,077 $12.08 161
2016 Q1 87,102,854 $1,197,524,498 -$26,932,261 $13.75 155
2015 Q4 89,100,898 $1,032,730,487 +$22,474,443 $11.59 143
2015 Q3 86,935,879 $1,025,707,343 +$17,639,831 $11.80 140
2015 Q2 84,937,051 $1,230,694,841 +$73,279,303 $14.49 122
2015 Q1 80,008,496 $1,005,885,069 +$23,545,784 $12.58 122
2014 Q4 78,255,616 $867,907,693 -$2,418,028 $11.09 140
2014 Q3 78,037,761 $973,309,974 +$32,638,330 $12.48 134
2014 Q2 75,252,829 $1,076,108,790 +$71,848,702 $14.30 134
2014 Q1 71,129,521 $764,781,988 +$49,666,583 $10.75 118