RambusRMBS
13F holders, Q3 2025 (September 30)513holders +54
117new positions
60sold out
8famous investors
$104.20avg. 13F price*
At the end of Q3 2025, 513 institutions reported holding Rambus Inc. (RMBS) in their 13F filings, up 54 from Q2 2025. 117 opened new positions and 60 sold out. The largest holders were BlackRock, Inc. ($1.6B), Vanguard Group Inc. ($1.3B) and T. Rowe Price Associates Inc. ($546.6M). 8 famous investors held it, including Ray Dalio (0.1% of Bridgewater Associates's portfolio), Steve Cohen (0.0% of Point72 Asset Management's portfolio) and Cliff Asness (0.0% of AQR Capital Management's portfolio).
- Company
- Rambus Inc.
- CUSIP
- 750917106
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 117 | $308.6M |
| Exits | 60 | $109.8M |
All 13F filers, Q2 2025 → Q3 2025: 14,693,409 shares bought and 10,997,274 shares sold, net +3,696,135 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 513 holders
| BlackRock, Inc. | 0.03% | Add +5.4% | 15,808,693 | $1.6B |
| Vanguard Group Inc. | 0.02% | Add +1.1% | 12,701,773 | $1.3B |
| T. Rowe Price Associates Inc. | 0.06% | Add +11.8% | 5,245,344 | $546.6M |
| State Street Corp. | 0.02% | Reduce -2.6% | 4,389,985 | $457.4M |
| Geode Capital Management, LLC | 0.02% | Add +2.3% | 2,748,501 | $286.4M |
| EdgePoint Investment Group Inc. | 2.09% | Reduce -3.7% | 2,682,956 | $279.6M |
| JPMorgan Chase & Co. | 0.02% | Reduce -19.6% | 2,556,838 | $266.4M |
| Invesco Ltd. | 0.04% | Add +4.7% | 2,432,032 | $253.4M |
| Dimensional Fund Advisors LP | 0.04% | Add +0.6% | 1,928,697 | $201.0M |
| Alliancebernstein L.P. | 0.06% | Add +572.7% | 1,822,030 | $189.9M |
| Swedbank AB | 0.18% | No change | 1,700,000 | $177.1M |
| Bank of New York Mellon Corp | 0.03% | Reduce -20.9% | 1,598,338 | $166.5M |
| Bank of America Corp. | 0.01% | Add +196.0% | 1,550,665 | $161.6M |
| Neuberger Berman Group LLC | 0.11% | Add +9.9% | 1,482,008 | $154.4M |
| Northern Trust Corp. | 0.02% | Reduce -0.6% | 1,385,874 | $144.4M |
| FMR LLC | 0.01% | Add +306.1% | 1,373,524 | $143.1M |
| Congress Asset Management Co. | 0.93% | Add +5.5% | 1,347,185 | $140.4M |
| Charles Schwab Investment Management Inc. | 0.02% | Add +4.0% | 1,338,914 | $139.5M |
| Nuveen, LLC | 0.04% | Add +13.0% | 1,283,125 | $133.7M |
| Raymond James Financial Inc. | 0.04% | Reduce -13.3% | 1,190,320 | $124.0M |
| Goldman Sachs Group Inc. | 0.02% | Add +80.0% | 1,187,133 | $123.7M |
| Morgan Stanley | 0.01% | Reduce -8.4% | 1,065,804 | $111.1M |
| Rafferty Asset Management, LLC | 0.30% | New | 901,750 | $94.0M |
| Barclays PLC | 0.03% | Add +183.1% | 894,906 | $93.2M |
| Hood River Capital Management LLC | 1.03% | Reduce -12.3% | 838,440 | $87.4M |
| Voya Investment Management LLC | 0.09% | Reduce -35.9% | 768,538 | $80.1M |
| Wellington Management Group LLP | 0.01% | Reduce -37.8% | 750,446 | $78.2M |
| Lord, Abbett & Co. LLC | 0.24% | Add +134.6% | 746,676 | $77.8M |
| T. Rowe Price Investment Management, Inc. | 0.05% | Add +133.0% | 729,047 | $76.0M |
| Emerald Advisers, LLC | 2.13% | Reduce -10.2% | 637,754 | $66.5M |
| Analog Century Management LP | 3.53% | Reduce -23.7% | 631,343 | $65.8M |
| Loomis Sayles & Co. L P | 0.08% | Add +177.1% | 610,153 | $63.6M |
| UBS Group AG | 0.01% | Add +302.9% | 565,805 | $59.0M |
| AQR Capital Management | 0.04% | Reduce -22.0% | 547,604 | $57.1M |
| Oberweis Asset Management Inc./ | 2.03% | Add +0.4% | 507,899 | $52.9M |
| Allspring Global Investments Holdings, LLC | 0.08% | Add +626.9% | 495,453 | $51.1M |
| Westfield Capital Management Co. LP | 0.21% | Reduce -49.7% | 484,465 | $50.5M |
| Principal Financial Group Inc. | 0.02% | Reduce -8.3% | 472,974 | $49.3M |
| Franklin Resources Inc. | 0.01% | Add +10.4% | 472,349 | $49.2M |
| Silvercrest Asset Management Group LLC | 0.32% | Reduce -3.2% | 464,889 | $48.4M |
| Ameriprise Financial Inc. | 0.01% | Add +82.6% | 460,104 | $47.9M |
| Panagora Asset Management Inc. | 0.18% | Reduce -8.2% | 438,117 | $45.7M |
| Emerald Mutual Fund Advisers Trust | 2.10% | Reduce -6.0% | 391,215 | $40.8M |
| Janus Henderson Group PLC | 0.02% | Add +79.9% | 384,004 | $40.0M |
| Caisse de depot et placement du Quebec | 0.07% | Add +2744.8% | 380,604 | $39.7M |
| Citigroup Inc. | 0.03% | Add +146.7% | 370,341 | $38.6M |
| Rhumbline Advisers | 0.03% | Reduce -2.2% | 344,387 | $35.9M |
| Lazard Asset Management LLC | 0.04% | Add +39.4% | 298,928 | $31.1M |
| WCM Investment Management, LLC | 0.06% | Reduce -28.3% | 298,880 | $31.1M |
| Macquarie Group Ltd. | 0.04% | Add +14.1% | 292,205 | $30.4M |
| William Blair Investment Management, LLC | 0.08% | New | 291,182 | $30.3M |
| Sei Investments Co. | 0.03% | Reduce -31.1% | 280,553 | $29.2M |
| Canada Pension Plan Investment Board | 0.02% | Add +79.9% | 254,600 | $26.5M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.01% | Reduce -40.0% | 253,906 | $26.5M |
| Segall Bryant & Hamill, LLC | 0.34% | Reduce -5.5% | 248,079 | $25.8M |
| MetLife Investment Management, LLC | 0.12% | Reduce -37.0% | 245,812 | $25.6M |
| Granahan Investment Management, LLC | 1.02% | Add +83.3% | 238,443 | $24.8M |
| Westwood Holdings Group Inc. | 0.18% | Reduce -86.5% | 235,057 | $24.5M |
| Schwartz Investment Counsel Inc. | 0.81% | Reduce -39.4% | 230,337 | $24.0M |
| Prudential Financial Inc. | 0.03% | Reduce -16.1% | 221,021 | $23.0M |
| Legal & General Group Plc | 0.01% | Reduce -4.5% | 219,714 | $22.9M |
| Osaic Holdings, Inc. | 0.03% | Add +1833.3% | 224,655 | $22.4M |
| Swiss National Bank | 0.01% | Add +1.5% | 208,200 | $21.7M |
| First Trust Advisors LP | 0.02% | Add +34.3% | 200,545 | $20.9M |
| Healthcare of Ontario Pension Plan Trust Fund | 0.04% | New | 200,000 | $20.8M |
| Millennium Management | 0.02% | Reduce -52.9% | 197,232 | $20.6M |
| California Public Employees Retirement System | 0.01% | Add +5.5% | 196,091 | $20.4M |
| Stephens Investment Management Group LLC | 0.26% | Reduce -0.9% | 193,391 | $20.2M |
| Jane Street Group, LLC | 0.02% | Add +77.3% | 193,150 | $20.1M |
| Glenmede Investment Management, LP | 0.09% | Reduce -36.7% | 188,187 | $19.6M |
| Wells Fargo & Company | 0.00% | Add +6.1% | 180,980 | $18.9M |
| Bridgewater Associates | 0.07% | Reduce -22.8% | 175,114 | $18.2M |
| Arrowstreet Capital, Limited Partnership | 0.01% | New | 173,353 | $18.1M |
| Point72 Asset Management | 0.04% | New | 166,667 | $17.4M |
| CloudAlpha Capital Management Limited/Hong Kong | 1.55% | New | 165,800 | $17.3M |
| BNP Paribas Financial Markets | 0.01% | Reduce -21.0% | 165,311 | $17.2M |
| Acadian Asset Management LLC | 0.03% | Add +136.8% | 161,128 | $16.8M |
| DekaBank Deutsche Girozentrale | 0.03% | No change | 154,173 | $16.1M |
| HighTower Advisors, LLC | 0.02% | Reduce -29.4% | 154,029 | $16.0M |
| Fisher Asset Management | 0.01% | New | 152,882 | $15.9M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.03% | Reduce -12.4% | 152,533 | $15.9M |
| Van Eck Associates Corp. | 0.01% | Add +34.5% | 152,512 | $15.9M |
| Penn Capital Management Company, LLC | 1.22% | Reduce -47.0% | 151,825 | $15.9M |
| Osterweis Capital Management Inc. | 0.93% | Reduce -46.7% | 151,560 | $15.8M |
| Russell Investments Group, Ltd. | 0.02% | Add +13.0% | 148,271 | $15.4M |
| Schroder Investment Management Group | 0.01% | Add +9.6% | 143,093 | $14.9M |
| Mutual of America Capital Management LLC | 0.16% | Reduce -6.6% | 141,874 | $14.8M |
| Nordea Investment Management AB | 0.01% | Add +101.7% | 139,430 | $14.7M |
| Man Group plc | 0.03% | Reduce -4.9% | 134,375 | $14.0M |
| Retirement Systems of Alabama | 0.05% | Reduce -0.9% | 130,088 | $13.6M |
| Mirae Asset Global Investments Co., Ltd. | 0.04% | Add +1320.8% | 129,676 | $13.5M |
| Deutsche Bank AG | 0.00% | Reduce -1.5% | 125,944 | $13.1M |
| New York State Common Retirement Fund | 0.02% | Reduce -39.3% | 125,713 | $13.1M |
| Algert Global LLC | 0.21% | Reduce -28.4% | 122,387 | $12.8M |
| Assetmark, Inc. | 0.03% | Reduce -3.5% | 121,149 | $12.6M |
| Manufacturers Life Insurance Company, The | 0.01% | Reduce -4.8% | 115,370 | $12.0M |
| State of Wisconsin Investment Board | 0.03% | Add +13.9% | 114,994 | $12.0M |
| Hillsdale Investment Management Inc. | 0.35% | Add +8.8% | 112,700 | $11.7M |
| Castleark Management LLC | 0.32% | Reduce -3.4% | 110,838 | $11.5M |
| Federated Hermes, Inc. | 0.02% | Add +995.5% | 109,841 | $11.4M |
"% of holder's portfolio" is RMBS's weight in each manager's 13F, not the share of Rambus Inc. the manager owns.