Rambus Inc
RMBS- Exchange
- Nasdaq
- Industry
- Semiconductors & Related Devices
- SEC CIK
- 0000917273
In the last 90 days, Rambus Inc insiders filed 0 open-market purchases and 2 sales; 620 institutions reported holding it in 13F filings for Q2 2026, worth $13.3B in total; superinvestors Duquesne Family Office and Maverick Capital hold it.
13F holders, Q4 2022
Institutional positions in Rambus Inc as of Dec 31, 2022. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 303
- +64 vs. Q3 2022
- Shares held
- 91.6M
- −1.84M (−2.0%) vs. Q3 2022
- Total value
- $3.27B
- +$892.4M (+37.5%) vs. Q3 2022
- New holders
- 79
- 83 more added
- Sold out
- 15
- 101 more reduced
2 institutions that held it in Q3 2022 haven't filed for Q4 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2022: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting RMBS on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 620 | $13.3B |
| Q1 2026 | 557 | $8.83B |
| Q4 2025 | 554 | $9.18B |
| Q3 2025 | 513 | $10.3B |
| Q2 2025 | 459 | $6.22B |
| Q1 2025 | 413 | $5.01B |
| Q4 2024 | 395 | $5.03B |
| Q3 2024 | 376 | $3.94B |
| Q2 2024 | 363 | $5.64B |
| Q1 2024 | 375 | $6.00B |
| Q4 2023 | 400 | $6.62B |
| Q3 2023 | 350 | $5.48B |
| Q2 2023 | 393 | $6.14B |
| Q1 2023 | 337 | $4.81B |
| Q4 2022 | 303 | $3.27B |
| Q3 2022 | 241 | $2.38B |
| Q2 2022 | 253 | $2.07B |
| Q1 2022 | 276 | $2.98B |
| Q4 2021 | 258 | $2.80B |
| Q3 2021 | 236 | $2.07B |
| Q2 2021 | 219 | $2.30B |
| Q1 2021 | 213 | $1.86B |
Institutions, Q4 2022
Shares, value and share of portfolio for each institution holding Rambus Inc; share changes are against Q3 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock Inc. | 17,569,163 | $629.3M | 0.02% | +449,088+2.6% | Added |
| Vanguard Group Inc | 12,480,580 | $447.1M | 0.01% | −106,386−0.8% | Reduced |
| Ameriprise Financial Inc | 4,889,729 | $175.2M | 0.06% | −577,901−10.6% | Reduced |
| Neuberger Berman Group LLC | 4,594,601 | $164.9M | 0.16% | −543,727−10.6% | Reduced |
| State Street Corp | 4,356,152 | $156.0M | 0.01% | −499,649−10.3% | Reduced |
| Dimensional Fund Advisors LP | 3,559,172 | $127.5M | 0.04% | −78,008−2.1% | Reduced |
| Wellington Management Group LLP | 2,732,152 | $97.9M | 0.02% | +83,338+3.1% | Added |
| Loomis Sayles & Co L P | 2,470,117 | $88.5M | 0.18% | −209,368−7.8% | Reduced |
| Lord, Abbett & Co. LLC | 2,097,865 | $75.1M | 0.27% | −2280.0% | Reduced |
| Geode Capital Management, LLC | 2,012,638 | $72.1M | 0.01% | +26,871+1.4% | Added |
| Westwood Holdings Group Inc. | 1,945,264 | $69.7M | 0.61% | −974,610−33.4% | Reduced |
| Vaughan Nelson Investment Management, L.P. | 1,597,970 | $57.2M | 0.74% | +13,895+0.9% | Added |
| Northern Trust Corp | 1,583,944 | $56.7M | 0.01% | −4,177−0.3% | Reduced |
| Captrust Financial Advisors | 1,288,667 | $46.2M | 0.23% | +1,006,772+357.1% | Added |
| D. E. Shaw & Co., Inc. | 1,223,547 | $43.8M | 0.07% | −48,206−3.8% | Reduced |
| Silvercrest Asset Management Group LLC | 1,201,912 | $43.1M | 0.33% | −455,259−27.5% | Reduced |
| Norges Bank | 1,159,915 | $41.5M | 0.01% | +112,920+10.8% | Added |
| Hood River Capital Management LLC | 1,149,753 | $41.2M | 1.50% | +24,864+2.2% | Added |
| Bank of New York Mellon Corp | 1,084,013 | $38.8M | 0.01% | −71,531−6.2% | Reduced |
| Morgan Stanley | 1,032,059 | $37.0M | 0.00% | +35,230+3.5% | Added |
| Nuveen Asset Management, LLC | 993,842 | $35.6M | 0.01% | −136,735−12.1% | Reduced |
| Charles Schwab Investment Management Inc | 808,009 | $28.9M | 0.01% | +3,214+0.4% | Added |
| Invesco Ltd. | 775,358 | $27.8M | 0.01% | −50,660−6.1% | Reduced |
| Principal Financial Group Inc | 679,733 | $24.3M | 0.02% | −30,702−4.3% | Reduced |
| Park West Asset Management LLC | 543,700 | $19.5M | 1.95% | +543,700 | New |
| Russell Investments Group, Ltd. | 542,399 | $19.4M | 0.04% | −611,640−53.0% | Reduced |
| Barington Capital Group, L.P. | 530,100 | $19.0M | 28.39% | 00.0% | Unchanged |
| Glenmede Trust Co NA | 496,241 | $17.8M | 0.10% | −61,176−11.0% | Reduced |
| Millennium Management LLC | 475,681 | $17.0M | 0.02% | +465,615+4,625.6% | Added |
| Pacer Advisors, Inc. | 442,672 | $15.9M | 0.08% | +18,868+4.5% | Added |
| JPMorgan Chase & Co | 423,207 | $15.2M | 0.00% | −391,631−48.1% | Reduced |
| Panagora Asset Management Inc | 416,328 | $14.9M | 0.10% | +49,190+13.4% | Added |
| Driehaus Capital Management LLC | 379,636 | $13.6M | 0.20% | +379,636 | New |
| Man Group plc | 377,417 | $13.5M | 0.05% | −4,996−1.3% | Reduced |
| Epoch Investment Partners, Inc. | 372,218 | $13.3M | 0.08% | −174,459−31.9% | Reduced |
| Goldman Sachs Group Inc | 359,471 | $12.9M | 0.00% | −221,965−38.2% | Reduced |
| Bank of America Corp | 321,544 | $11.5M | 0.00% | +55,792+21.0% | Added |
| Penn Capital Management Co Inc | 316,189 | $11.3M | 1.16% | −198,680−38.6% | Reduced |
| Legal & General Group Plc | 313,806 | $11.2M | 0.00% | −2,394−0.8% | Reduced |
| Rhumbline Advisers | 304,502 | $10.9M | 0.01% | +2,697+0.9% | Added |
| New York State Common Retirement Fund | 299,670 | $10.7M | 0.01% | −138,604−31.6% | Reduced |
| Natixis Advisors, L.P. | 299,080 | $10.7M | 0.04% | +158,580+112.9% | Added |
| Swiss National Bank | 266,900 | $9.56M | 0.01% | +5,500+2.1% | Added |
| Mirae Asset Global Investments Co., Ltd. | 262,616 | $9.41M | 0.02% | −11,656−4.2% | Reduced |
| AXA S.A. | 257,269 | $9.22M | 0.03% | +155,069+151.7% | Added |
| Primecap Management Co | 238,663 | $8.55M | 0.01% | −6,900−2.8% | Reduced |
| Thrivent Financial for Lutherans | 236,319 | $8.46M | 0.02% | +3,631+1.6% | Added |
| Royce & Associates LP | 222,290 | $7.96M | 0.08% | −281,800−55.9% | Reduced |
| SEI Investments Co | 218,516 | $7.83M | 0.02% | +137,528+169.8% | Added |
| Mesirow Institutional Investment Management, Inc. | 213,296 | $7.64M | 1.01% | −163,170−43.3% | Reduced |
| Two Sigma Advisers, LP | 200,485 | $7.18M | 0.02% | −53,100−20.9% | Reduced |
| Public Sector Pension Investment Board | 195,540 | $7.00M | 0.06% | −7,062−3.5% | Reduced |
| Eagle Asset Management Inc | 191,309 | $6.70M | 0.04% | −72,284−27.4% | Reduced |
| HighTower Advisors, LLC | 181,891 | $6.51M | 0.01% | +480.0% | Added |
| Assenagon Asset Management S.A. | 167,345 | $5.99M | 0.02% | −169,184−50.3% | Reduced |
| Alliancebernstein L.P. | 167,280 | $5.99M | 0.00% | +14,231+9.3% | Added |
| Credit Suisse AG | 159,675 | $5.72M | 0.01% | −32,728−17.0% | Reduced |
| Rice Hall James & Associates, LLC | 152,278 | $5.45M | 0.31% | −28,300−15.7% | Reduced |
| Crestline Management, LP | 149,080 | $5.34M | 0.78% | −8,249−5.2% | Reduced |
| Twinbeech Capital LP | 145,173 | $5.20M | 0.10% | +145,173 | New |
| Great West Life Assurance Co | 143,130 | $5.13M | 0.01% | −630.0% | Reduced |
| California State Teachers Retirement System | 138,841 | $4.97M | 0.01% | +580+0.4% | Added |
| Hillsdale Investment Management Inc. | 130,400 | $4.67M | 0.39% | +99,200+317.9% | Added |
| UBS Asset Management Americas Inc | 129,971 | $4.66M | 0.00% | +13,799+11.9% | Added |
| Cubist Systematic Strategies, LLC | 128,301 | $4.60M | 0.04% | +128,301 | New |
| First Trust Advisors LP | 128,046 | $4.59M | 0.01% | +31,497+32.6% | Added |
| Los Angeles Capital Management LLC | 123,122 | $4.41M | 0.02% | −9,286−7.0% | Reduced |
| Jacobs Levy Equity Management, Inc | 116,804 | $4.18M | 0.03% | +116,804 | New |
| LPL Financial LLC | 115,885 | $4.15M | 0.00% | −2,108−1.8% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 115,030 | $4.12M | 0.03% | +14,325+14.2% | Added |
| Arrowstreet Capital, Limited Partnership | 114,630 | $4.11M | 0.01% | +114,630 | New |
| State of Wisconsin Investment Board | 111,878 | $4.01M | 0.01% | −11,569−9.4% | Reduced |
| State of Tennessee, Treasury Department | 109,669 | $3.93M | 0.02% | −4,614−4.0% | Reduced |
| Prudential Financial Inc | 108,906 | $3.90M | 0.01% | −3,155−2.8% | Reduced |
| Schroder Investment Management Group | 100,391 | $3.60M | 0.01% | −12,063−10.7% | Reduced |
| Boston Partners | 98,389 | $3.52M | 0.00% | −116,675−54.3% | Reduced |
| Wells Fargo & Company | 96,644 | $3.46M | 0.00% | +2,735+2.9% | Added |
| Public Employees Retirement System of Ohio | 95,461 | $3.42M | 0.01% | −56,717−37.3% | Reduced |
| Stifel Financial Corp | 93,469 | $3.35M | 0.01% | −880−0.9% | Reduced |
| Jane Street Group, LLC | 93,286 | $3.34M | 0.01% | +74,774+403.9% | Added |
| Jackson Square Partners, LLC | 93,078 | $3.33M | 0.09% | +93,078 | New |
| China Universal Asset Management Co., Ltd. | 93,000 | $3.33M | 1.34% | 00.0% | Unchanged |
| Royal Bank of Canada | 92,345 | $3.31M | 0.00% | +27,683+42.8% | Added |
| BNP Paribas Arbitrage, SA | 91,340 | $3.27M | 0.01% | −4,963−5.2% | Reduced |
| Susquehanna International Group, LLP | 90,217 | $3.23M | 0.01% | +56,472+167.3% | Added |
| Two Sigma Investments, LP | 89,588 | $3.21M | 0.01% | +89,588 | New |
| Citigroup Inc | 88,587 | $3.17M | 0.00% | −10,614−10.7% | Reduced |
| Winton Group Ltd | 87,198 | $3.12M | 0.21% | +22,852+35.5% | Added |
| UBS Group AG | 85,960 | $3.08M | 0.00% | +39,402+84.6% | Added |
| Barclays PLC | 80,973 | $2.90M | 0.00% | +29,733+58.0% | Added |
| Victory Capital Management Inc | 75,288 | $2.70M | 0.00% | +14,223+23.3% | Added |
| SG Americas Securities, LLC | 74,871 | $2.68M | 0.04% | +28,354+61.0% | Added |
| State of Alaska, Department of Revenue | 74,844 | $2.68M | 0.03% | −1,678−2.2% | Reduced |
| Cambiar Investors LLC | 73,053 | $2.62M | 0.12% | +1,442+2.0% | Added |
| Deutsche Bank AG | 72,340 | $2.59M | 0.00% | −17,056−19.1% | Reduced |
| Texas Permanent School Fund | 72,259 | $2.59M | 0.04% | −7,234−9.1% | Reduced |
| Comerica Bank | 65,236 | $2.57M | 0.02% | −21,660−24.9% | Reduced |
| Gotham Asset Management, LLC | 71,487 | $2.56M | 0.07% | +8,303+13.1% | Added |
| Yousif Capital Management, LLC | 70,956 | $2.54M | 0.03% | −20,365−22.3% | Reduced |
| Capital Fund Management S.A. | 69,133 | $2.48M | 0.05% | +36,239+110.2% | Added |