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, Q3 2021
Institutional positions in Rambus Inc as of Sep 30, 2021. 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
- 236
- +20 vs. Q2 2021
- Shares held
- 93.4M
- −3.16M (−3.3%) vs. Q2 2021
- Total value
- $2.07B
- −$216.2M (−9.4%) vs. Q2 2021
- New holders
- 35
- 65 more added
- Sold out
- 15
- 83 more reduced
3 institutions that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2021: 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, Q3 2021
Shares, value and share of portfolio for each institution holding Rambus Inc; share changes are against Q2 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock Inc. | 16,541,408 | $367.2M | 0.01% | −1,395,102−7.8% | Reduced |
| Vanguard Group Inc | 11,809,220 | $262.2M | 0.01% | −399,702−3.3% | Reduced |
| Lynrock Lake LP | 7,666,666 | $170.2M | 10.50% | 00.0% | Unchanged |
| Ameriprise Financial Inc | 5,319,167 | $118.1M | 0.04% | +135,571+2.6% | Added |
| State Street Corp | 4,730,414 | $105.0M | 0.01% | −39,213−0.8% | Reduced |
| Neuberger Berman Group LLC | 4,120,310 | $90.5M | 0.08% | +62,747+1.5% | Added |
| Dimensional Fund Advisors LP | 3,656,079 | $81.2M | 0.03% | −129,062−3.4% | Reduced |
| Loomis Sayles & Co L P | 3,042,961 | $67.6M | 0.08% | −40,879−1.3% | Reduced |
| Silvercrest Asset Management Group LLC | 2,455,489 | $54.5M | 0.37% | +2,783+0.1% | Added |
| Wellington Management Group LLP | 2,394,191 | $53.2M | 0.01% | −44,608−1.8% | Reduced |
| Geode Capital Management, LLC | 1,854,368 | $41.2M | 0.01% | −109,671−5.6% | Reduced |
| Northern Trust Corp | 1,671,894 | $37.1M | 0.01% | −42,017−2.5% | Reduced |
| Nuveen Asset Management, LLC | 1,642,837 | $36.5M | 0.01% | −465,668−22.1% | Reduced |
| D. E. Shaw & Co., Inc. | 1,496,189 | $33.2M | 0.04% | +117,565+8.5% | Added |
| Norges Bank | 1,062,993 | $23.6M | 0.01% | −221,703−17.3% | Reduced |
| Bank of New York Mellon Corp | 1,008,680 | $22.4M | 0.00% | −78,877−7.3% | Reduced |
| Invesco Ltd. | 863,329 | $19.2M | 0.00% | −124,749−12.6% | Reduced |
| Millennium Management LLC | 860,483 | $19.1M | 0.03% | +557,270+183.8% | Added |
| Lord, Abbett & Co. LLC | 766,657 | $17.0M | 0.04% | −9,907−1.3% | Reduced |
| Charles Schwab Investment Management Inc | 755,376 | $16.8M | 0.01% | −24,633−3.2% | Reduced |
| Principal Financial Group Inc | 751,841 | $16.7M | 0.01% | −39,071−4.9% | Reduced |
| JPMorgan Chase & Co | 746,563 | $16.6M | 0.00% | −149,603−16.7% | Reduced |
| Shannon River Fund Management LLC | 737,973 | $16.4M | 1.44% | 00.0% | Unchanged |
| Heard Capital LLC | 716,340 | $15.9M | 3.09% | +6,690+0.9% | Added |
| Glenmede Trust Co NA | 706,370 | $15.7M | 0.08% | +462,076+189.1% | Added |
| Two Sigma Advisers, LP | 672,685 | $14.9M | 0.04% | −56,100−7.7% | Reduced |
| Russell Investments Group, Ltd. | 627,397 | $13.9M | 0.02% | +77,182+14.0% | Added |
| Morgan Stanley | 569,975 | $12.7M | 0.00% | +91,346+19.1% | Added |
| Barington Capital Group, L.P. | 530,100 | $11.8M | 12.23% | 00.0% | Unchanged |
| Epoch Investment Partners, Inc. | 519,361 | $11.5M | 0.06% | +183,590+54.7% | Added |
| Credit Suisse AG | 511,142 | $11.3M | 0.01% | +33,248+7.0% | Added |
| MESIROW FINANCIAL INVESTMENT MANAGEMENT - Equity & Fixed Income | 487,186 | $10.8M | 1.25% | −50,050−9.3% | Reduced |
| Barclays PLC | 390,310 | $8.66M | 0.01% | +95,761+32.5% | Added |
| Assenagon Asset Management S.A. | 380,125 | $8.44M | 0.03% | −3,363−0.9% | Reduced |
| New York State Common Retirement Fund | 362,704 | $8.05M | 0.01% | −48,794−11.9% | Reduced |
| Penn Capital Management Co Inc | 325,605 | $7.23M | 0.73% | −41,972−11.4% | Reduced |
| Deutsche Bank AG | 323,243 | $7.18M | 0.00% | +202,910+168.6% | Added |
| AXA S.A. | 315,100 | $7.00M | 0.02% | 00.0% | Unchanged |
| Bank of America Corp | 312,930 | $6.95M | 0.00% | +177,003+130.2% | Added |
| Rhumbline Advisers | 310,158 | $6.89M | 0.01% | −50,213−13.9% | Reduced |
| Legal & General Group Plc | 309,474 | $6.87M | 0.00% | +15,688+5.3% | Added |
| Two Sigma Investments, LP | 295,101 | $6.55M | 0.02% | −59,002−16.7% | Reduced |
| Parametric Portfolio Associates LLC | 293,983 | $6.53M | 0.00% | −101,424−25.7% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 288,199 | $6.40M | 0.02% | −6,142−2.1% | Reduced |
| Goldman Sachs Group Inc | 286,850 | $6.37M | 0.00% | −38,093−11.7% | Reduced |
| Primecap Management Co | 286,263 | $6.36M | 0.00% | −9,026−3.1% | Reduced |
| Royal Bank of Canada | 279,667 | $6.21M | 0.00% | +9,338+3.5% | Added |
| Swiss National Bank | 248,600 | $5.52M | 0.00% | −2,500−1.0% | Reduced |
| Public Sector Pension Investment Board | 232,669 | $5.17M | 0.03% | −1,143−0.5% | Reduced |
| Renaissance Technologies LLC | 208,860 | $4.64M | 0.01% | −760,200−78.4% | Reduced |
| SG Americas Securities, LLC | 208,158 | $4.62M | 0.03% | +199,385+2,272.7% | Added |
| HRT Financial LP | 191,961 | $4.26M | 0.03% | +154,925+418.3% | Added |
| Alexandria Capital, LLC | 180,000 | $4.00M | 0.37% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 174,680 | $3.88M | 0.01% | +15,566+9.8% | Added |
| First Trust Advisors LP | 164,872 | $3.66M | 0.00% | +73,588+80.6% | Added |
| Alliancebernstein L.P. | 164,758 | $3.66M | 0.00% | −11,970−6.8% | Reduced |
| Crestline Management, LP | 161,171 | $3.58M | 0.34% | +24,568+18.0% | Added |
| Putnam Investments LLC | 152,740 | $3.39M | 0.01% | −35,960−19.1% | Reduced |
| LPL Financial LLC | 152,344 | $3.38M | 0.00% | −12,004−7.3% | Reduced |
| California State Teachers Retirement System | 150,745 | $3.35M | 0.00% | −3,691−2.4% | Reduced |
| Wells Fargo & Company | 140,474 | $3.12M | 0.00% | −22,181−13.6% | Reduced |
| AlphaCrest Capital Management LLC | 139,778 | $3.10M | 0.16% | +124,690+826.4% | Added |
| UBS Asset Management Americas Inc | 136,755 | $3.04M | 0.00% | +3,633+2.7% | Added |
| Captrust Financial Advisors | 135,149 | $3.00M | 0.02% | +127,970+1,782.6% | Added |
| Schroder Investment Management Group | 125,345 | $2.78M | 0.00% | −3,679−2.9% | Reduced |
| Cubist Systematic Strategies, LLC | 121,970 | $2.71M | 0.03% | +45,361+59.2% | Added |
| Cambiar Investors LLC | 117,694 | $2.61M | 0.09% | −31,104−20.9% | Reduced |
| Prudential Financial Inc | 116,701 | $2.59M | 0.00% | −6,011−4.9% | Reduced |
| State of New Jersey Common Pension Fund D | 112,562 | $2.50M | 0.01% | −22,490−16.7% | Reduced |
| Ensign Peak Advisors, Inc | 102,357 | $2.27M | 0.00% | 00.0% | Unchanged |
| Comerica Bank | 98,963 | $2.25M | 0.01% | −6,573−6.2% | Reduced |
| Verition Fund Management LLC | 100,424 | $2.23M | 0.03% | −49,576−33.1% | Reduced |
| Great West Life Assurance Co | 93,489 | $2.09M | 0.00% | −3,341−3.5% | Reduced |
| Stifel Financial Corp | 90,489 | $2.01M | 0.00% | +741+0.8% | Added |
| Citigroup Inc | 90,015 | $2.00M | 0.00% | −19,068−17.5% | Reduced |
| Thrivent Financial for Lutherans | 88,022 | $1.95M | 0.00% | −3,951−4.3% | Reduced |
| Skandinaviska Enskilda Banken AB (publ) | 87,500 | $1.94M | 0.01% | +29,000+49.6% | Added |
| State of Tennessee, Treasury Department | 83,081 | $1.84M | 0.01% | −10,635−11.3% | Reduced |
| Ziegler Capital Management, LLC | 82,746 | $1.84M | 0.07% | +174+0.2% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 82,567 | $1.83M | 0.02% | −3,771−4.4% | Reduced |
| Texas Permanent School Fund | 80,555 | $1.79M | 0.02% | −3,287−3.9% | Reduced |
| State of Alaska, Department of Revenue | 79,401 | $1.76M | 0.02% | +1,579+2.0% | Added |
| Voya Investment Management LLC | 73,901 | $1.64M | 0.00% | −674−0.9% | Reduced |
| Guggenheim Capital LLC | 70,587 | $1.57M | 0.01% | +26,889+61.5% | Added |
| American International Group, Inc. | 68,119 | $1.51M | 0.01% | −4,701−6.5% | Reduced |
| Canada Pension Plan Investment Board | 66,000 | $1.47M | 0.00% | +66,000 | New |
| State Board of Administration of Florida Retirement System | 61,872 | $1.37M | 0.00% | −14,292−18.8% | Reduced |
| Richard Bernstein Advisors LLC | 61,899 | $1.37M | 0.03% | +11,948+23.9% | Added |
| Arrowstreet Capital, Limited Partnership | 61,600 | $1.37M | 0.00% | +61,600 | New |
| Los Angeles Capital Management LLC | 60,932 | $1.35M | 0.01% | +2,172+3.7% | Added |
| New York State Teachers Retirement System | 59,061 | $1.31M | 0.00% | +2,882+5.1% | Added |
| Victory Capital Management Inc | 58,283 | $1.29M | 0.00% | −4,320−6.9% | Reduced |
| Manufacturers Life Insurance Company, The | 55,768 | $1.24M | 0.00% | −7,347−11.6% | Reduced |
| Qube Research & Technologies Ltd | 54,423 | $1.21M | 0.02% | +54,423 | New |
| STRS Ohio | 53,000 | $1.18M | 0.00% | −3,700−6.5% | Reduced |
| Louisiana State Employees Retirement System | 52,500 | $1.17M | 0.03% | +1,800+3.6% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 52,388 | $1.16M | 0.01% | +52,388 | New |
| SEI Investments Co | 52,224 | $1.16M | 0.00% | −24,722−32.1% | Reduced |
| Amalgamated Bank | 52,194 | $1.16M | 0.01% | −2,288−4.2% | Reduced |
| Truist Financial Corp | 50,600 | $1.12M | 0.00% | −3,692−6.8% | Reduced |