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
107,573,086
Price per share
$91.89
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares
98,740,031
Total reported value
$10,289,002,036
% of total 13F portfolios
0.01%
Share change
+1,686,338
Value change
+$325,759,360
Number of holders
507
Price from insider filings
$91.89
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/ 4.4% -46% $305,070,350 -$263,475,290 4,693,390 -46% T. Rowe Price Associates, Inc. 30 Jun 2025

As of 30 Sep 2025, 507 institutional investors reported holding 98,740,031 shares of RAMBUS INC - Common Stock (RMBS). This represents 92% of the company’s total 107,573,086 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% 15,808,693 +5.4% 0.03% $1,647,265,810
VANGUARD GROUP INC 12% 12,701,773 +1.1% 0.02% $1,323,524,746
PRICE T ROWE ASSOCIATES INC /MD/ 4.9% 5,245,344 +12% 0.06% $546,566,000
STATE STREET CORP 4.1% 4,389,985 -2.6% 0.02% $457,436,437
GEODE CAPITAL MANAGEMENT, LLC 2.6% 2,748,501 +2.3% 0.02% $286,431,558
EdgePoint Investment Group Inc. 2.5% 2,682,956 -3.7% 2.1% $279,564,015
JPMORGAN CHASE & CO 2.4% 2,556,838 -20% 0.02% $266,422,589
Invesco Ltd. 2.3% 2,432,032 +4.7% 0.04% $253,417,735
DIMENSIONAL FUND ADVISORS LP 1.8% 1,928,697 +0.57% 0.04% $200,965,633
ALLIANCEBERNSTEIN L.P. 1.7% 1,822,030 +573% 0.06% $189,855,526
Swedbank AB 1.6% 1,700,000 0% 0.18% $177,140,000
Bank of New York Mellon Corp 1.5% 1,598,338 -21% 0.03% $166,546,738
BANK OF AMERICA CORP /DE/ 1.4% 1,550,665 +196% 0.01% $161,579,292
NEUBERGER BERMAN GROUP LLC 1.4% 1,482,008 +9.9% 0.11% $154,412,561
NORTHERN TRUST CORP 1.3% 1,385,874 -0.56% 0.02% $144,408,071
FMR LLC 1.3% 1,373,524 +306% 0.01% $143,121,219
CONGRESS ASSET MANAGEMENT CO 1.3% 1,347,185 +5.5% 0.93% $140,376,677
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 1.2% 1,338,914 +4% 0.02% $139,514,839
Nuveen, LLC 1.2% 1,283,125 +13% 0.04% $133,701,626
RAYMOND JAMES FINANCIAL INC 1.1% 1,190,320 -13% 0.04% $124,031,341
GOLDMAN SACHS GROUP INC 1.1% 1,187,133 +80% 0.02% $123,699,227
MORGAN STANLEY 0.99% 1,065,804 -8.4% 0.01% $111,056,976
Rafferty Asset Management, LLC 0.84% 901,750 0.3% $93,962,350
BARCLAYS PLC 0.83% 894,906 +183% 0.03% $93,249,205
Hood River Capital Management LLC 0.78% 838,440 -12% 1% $87,365,448

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 2,643,671 $247,527,264 +$4,533,605 $91.89 65
2025 Q3 98,740,031 $10,289,002,036 +$325,759,360 $104.20 507
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