RambusRMBS
13F holders, Q2 2025 (June 30)459holders +45
81new positions
41sold out
7famous investors
$64.03avg. 13F price*
At the end of Q2 2025, 459 institutions reported holding Rambus Inc. (RMBS) in their 13F filings, up 45 from Q1 2025. 81 opened new positions and 41 sold out. The largest holders were BlackRock, Inc. ($960.3M), Vanguard Group Inc. ($804.1M) and T. Rowe Price Associates Inc. ($300.5M). 7 famous investors held it, including Ray Dalio (0.1% of Bridgewater Associates's portfolio), Cliff Asness (0.0% of AQR Capital Management's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Rambus Inc.
- CUSIP
- 750917106
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2025 → Q2 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 81 | $99.9M |
| Exits | 41 | $70.0M |
All 13F filers, Q1 2025 → Q2 2025: 10,628,526 shares bought and 11,933,184 shares sold, net −1,304,658 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 459 holders
| BlackRock, Inc. | 0.02% | Add +5.4% | 15,000,080 | $960.3M |
| Vanguard Group Inc. | 0.01% | Add +0.9% | 12,560,825 | $804.1M |
| T. Rowe Price Associates Inc. | 0.03% | Reduce -46.3% | 4,693,390 | $300.5M |
| State Street Corp. | 0.01% | Reduce -1.6% | 4,508,997 | $288.7M |
| JPMorgan Chase & Co. | 0.01% | Reduce -12.8% | 3,180,376 | $203.6M |
| EdgePoint Investment Group Inc. | 1.35% | Add +138.4% | 2,787,327 | $178.4M |
| Geode Capital Management, LLC | 0.01% | Add +1.4% | 2,687,691 | $172.1M |
| Invesco Ltd. | 0.03% | Reduce -48.8% | 2,322,124 | $148.7M |
| Bank of New York Mellon Corp | 0.02% | Add +13.2% | 2,019,504 | $129.3M |
| Norges Bank | 0.02% | Reduce -1.9% | 1,972,325 | $126.3M |
| Dimensional Fund Advisors LP | 0.03% | Add +2.6% | 1,917,673 | $122.8M |
| Westwood Holdings Group Inc. | 0.81% | Add +41.0% | 1,737,062 | $111.2M |
| Swedbank AB | 0.12% | No change | 1,700,000 | $108.8M |
| Northern Trust Corp. | 0.01% | Reduce -1.9% | 1,393,686 | $89.2M |
| Raymond James Financial Inc. | 0.03% | Add +46.0% | 1,372,109 | $87.8M |
| Neuberger Berman Group LLC | 0.07% | Add +5.1% | 1,348,038 | $86.3M |
| Charles Schwab Investment Management Inc. | 0.01% | Add +2.4% | 1,287,035 | $82.4M |
| Congress Asset Management Co. | 0.56% | Add +6.5% | 1,276,926 | $81.7M |
| Wellington Management Group LLP | 0.01% | Add +1.1% | 1,206,766 | $77.3M |
| Voya Investment Management LLC | 0.09% | Add +8.1% | 1,199,373 | $76.8M |
| Morgan Stanley | 0.00% | Add +24.0% | 1,163,259 | $74.5M |
| Nuveen, LLC | 0.02% | Add +3.0% | 1,135,670 | $72.7M |
| Westfield Capital Management Co. LP | 0.26% | Reduce -11.6% | 962,419 | $61.6M |
| Hood River Capital Management LLC | 0.85% | Add +1.1% | 955,600 | $61.2M |
| Assenagon Asset Management S.A. | 0.09% | Add +392.9% | 881,562 | $56.4M |
| Analog Century Management LP | 3.10% | Add +21.6% | 827,102 | $53.0M |
| Emerald Advisers, LLC | 1.67% | Add +33.8% | 710,123 | $45.5M |
| AQR Capital Management | 0.04% | Add +192.8% | 701,746 | $44.9M |
| Park West Asset Management LLC | 3.22% | Add +12.0% | 660,000 | $42.3M |
| Goldman Sachs Group Inc. | 0.01% | Reduce -2.0% | 659,609 | $42.2M |
| Bank of America Corp. | 0.00% | Add +32.1% | 523,889 | $33.5M |
| Principal Financial Group Inc. | 0.02% | Add +1.8% | 516,023 | $33.0M |
| Oberweis Asset Management Inc./ | 1.41% | Reduce -0.3% | 505,780 | $32.4M |
| Silvercrest Asset Management Group LLC | 0.21% | Reduce -6.5% | 480,448 | $30.8M |
| Panagora Asset Management Inc. | 0.14% | Add +3.7% | 477,359 | $30.6M |
| Franklin Resources Inc. | 0.01% | Add +14.3% | 427,949 | $27.4M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.01% | Add +36.6% | 422,805 | $27.1M |
| Millennium Management | 0.02% | Add +77.3% | 418,512 | $26.8M |
| WCM Investment Management, LLC | 0.06% | Add +7.3% | 416,901 | $26.7M |
| Emerald Mutual Fund Advisers Trust | 1.62% | Add +35.9% | 416,122 | $26.6M |
| Sei Investments Co. | 0.03% | Add +20.8% | 407,356 | $26.1M |
| MetLife Investment Management, LLC | 0.15% | Add +8.3% | 390,442 | $25.0M |
| Schwartz Investment Counsel Inc. | 0.80% | No change | 380,337 | $24.3M |
| Rhumbline Advisers | 0.02% | Add +5.7% | 352,028 | $22.5M |
| Qube Research & Technologies Ltd | 0.03% | Add +42.6% | 349,273 | $22.4M |
| FMR LLC | 0.00% | Add +694.6% | 338,261 | $21.7M |
| Lord, Abbett & Co. LLC | 0.07% | Reduce -6.9% | 318,322 | $20.4M |
| Barclays PLC | 0.01% | Add +75.2% | 316,067 | $20.2M |
| T. Rowe Price Investment Management, Inc. | 0.01% | New | 312,952 | $20.0M |
| Glenmede Investment Management, LP | 0.10% | — | 297,440 | $19.0M |
| Penn Capital Management Company, LLC | 1.59% | Add +16.0% | 286,263 | $18.4M |
| Osterweis Capital Management Inc. | 1.13% | Reduce -0.7% | 284,410 | $18.2M |
| Alliancebernstein L.P. | 0.01% | Add +18.9% | 270,871 | $17.3M |
| SummitTX Capital, L.P. | 0.76% | Add +17.9% | 268,895 | $17.2M |
| Prudential Financial Inc. | 0.02% | Add +2.4% | 263,371 | $16.9M |
| Segall Bryant & Hamill, LLC | 0.24% | Reduce -8.1% | 262,577 | $16.8M |
| Macquarie Group Ltd. | 0.02% | Add +0.2% | 256,093 | $16.4M |
| Ameriprise Financial Inc. | 0.00% | Reduce -10.1% | 251,918 | $16.1M |
| Royal Bank of Canada | 0.00% | Add +19.1% | 240,224 | $15.4M |
| Legal & General Group Plc | 0.00% | Add +0.1% | 230,197 | $14.7M |
| Bridgewater Associates | 0.06% | Add +190.6% | 226,869 | $14.5M |
| Loomis Sayles & Co. L P | 0.02% | New | 220,228 | $14.1M |
| HighTower Advisors, LLC | 0.02% | Add +12.8% | 218,320 | $14.0M |
| Lazard Asset Management LLC | 0.02% | Add +97.5% | 214,437 | $13.7M |
| Janus Henderson Group PLC | 0.01% | Add +12.1% | 213,403 | $13.7M |
| BNP Paribas Financial Markets | 0.01% | Add +159.5% | 209,330 | $13.4M |
| New York State Common Retirement Fund | 0.02% | Reduce -41.2% | 207,239 | $13.3M |
| Swiss National Bank | 0.01% | Reduce -0.6% | 205,200 | $13.1M |
| Stephens Investment Management Group LLC | 0.16% | Add +0.8% | 195,123 | $12.5M |
| CW Advisors, LLC | 0.12% | Add +4.7% | 191,225 | $12.2M |
| California Public Employees Retirement System | 0.01% | Add +7.8% | 185,883 | $11.9M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.02% | Reduce -4.8% | 174,218 | $11.2M |
| Algert Global LLC | 0.23% | Reduce -0.3% | 170,844 | $10.9M |
| Wells Fargo & Company | 0.00% | Add +56.1% | 170,639 | $10.9M |
| DekaBank Deutsche Girozentrale | 0.02% | No change | 154,173 | $10.0M |
| Citadel Advisors | 0.01% | Add +734.1% | 152,404 | $9.8M |
| Mutual of America Capital Management LLC | 0.10% | Add +4.8% | 151,854 | $9.7M |
| Citigroup Inc. | 0.01% | Add +34.1% | 150,134 | $9.6M |
| First Trust Advisors LP | 0.01% | Add +16.0% | 149,330 | $9.6M |
| Susquehanna International Group, LLP | 0.01% | Add +9.3% | 143,716 | $9.2M |
| Canada Pension Plan Investment Board | 0.01% | Add +0.6% | 141,500 | $9.1M |
| Man Group plc | 0.02% | Add +402.0% | 141,292 | $9.0M |
| UBS Group AG | 0.00% | Add +14.5% | 140,441 | $9.0M |
| Two Sigma Investments, LP | 0.02% | Reduce -58.0% | 131,653 | $8.4M |
| Retirement Systems of Alabama | 0.03% | Add +1.2% | 131,283 | $8.4M |
| Russell Investments Group, Ltd. | 0.01% | Reduce -6.4% | 131,178 | $8.4M |
| Schroder Investment Management Group | 0.01% | New | 130,621 | $8.4M |
| Granahan Investment Management, LLC | 0.34% | Add +1.1% | 130,081 | $8.3M |
| Two Sigma Advisers, LP | 0.02% | Reduce -56.0% | 129,300 | $8.3M |
| Deutsche Bank AG | 0.00% | Reduce -33.7% | 127,806 | $8.2M |
| Assetmark, Inc. | 0.02% | Add +9.7% | 125,556 | $8.0M |
| Renaissance Group LLC | 0.30% | Add +29.8% | 121,593 | $7.8M |
| Manufacturers Life Insurance Company, The | 0.01% | Reduce -3.8% | 121,209 | $7.8M |
| Castleark Management LLC | 0.22% | Reduce -2.9% | 114,700 | $7.3M |
| Van Eck Associates Corp. | 0.01% | Reduce -11.6% | 113,364 | $7.3M |
| Apis Capital Advisors, LLC | 2.55% | Add +19.1% | 112,000 | $7.2M |
| Jane Street Group, LLC | 0.01% | Reduce -68.7% | 108,921 | $7.0M |
| Los Angeles Capital Management LLC | 0.03% | Add +430.4% | 104,146 | $6.7M |
| Hillsdale Investment Management Inc. | 0.24% | Add +60.4% | 103,630 | $6.6M |
| Stanley-Laman Group, Ltd. | 0.98% | New | 103,312 | $6.6M |
"% of holder's portfolio" is RMBS's weight in each manager's 13F, not the share of Rambus Inc. the manager owns.