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 2021
Institutional positions in Rambus Inc as of Dec 31, 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
- 258
- +26 vs. Q3 2021
- Shares held
- 95.6M
- +2.33M (+2.5%) vs. Q3 2021
- Total value
- $2.80B
- +$735.3M (+35.5%) vs. Q3 2021
- New holders
- 55
- 84 more added
- Sold out
- 29
- 77 more reduced
4 institutions that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2021
Shares, value and share of portfolio for each institution holding Rambus Inc; share changes are against Q3 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Wells Fargo & Company | 168,143 | $4.94M | 0.00% | +27,669+19.7% | Added |
| BNP Paribas Arbitrage, SA | 168,596 | $4.96M | 0.01% | −6,084−3.5% | Reduced |
| HighTower Advisors, LLC | 180,402 | $5.30M | 0.01% | +180,402 | New |
| Two Sigma Investments, LP | 183,889 | $5.40M | 0.01% | −111,212−37.7% | Reduced |
| AXA S.A. | 199,900 | $5.88M | 0.02% | −115,200−36.6% | Reduced |
| Captrust Financial Advisors | 205,144 | $6.03M | 0.04% | +69,995+51.8% | Added |
| Crestline Management, LP | 206,538 | $6.07M | 0.46% | +45,367+28.1% | Added |
| Jacobs Levy Equity Management, Inc | 215,790 | $6.34M | 0.04% | +184,590+591.6% | Added |
| Public Sector Pension Investment Board | 222,752 | $6.55M | 0.04% | −9,917−4.3% | Reduced |
| Swiss National Bank | 239,600 | $7.04M | 0.00% | −9,000−3.6% | Reduced |
| Penn Capital Management Co Inc | 326,307 | $7.53M | 0.76% | +702+0.2% | Added |
| Primecap Management Co | 267,963 | $7.88M | 0.01% | −18,300−6.4% | Reduced |
| Royal Bank of Canada | 284,790 | $8.37M | 0.00% | +5,123+1.8% | Added |
| Renaissance Technologies LLC | 296,486 | $8.71M | 0.01% | +87,626+42.0% | Added |
| Rhumbline Advisers | 300,110 | $8.82M | 0.01% | −10,048−3.2% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 303,533 | $8.92M | 0.02% | +15,334+5.3% | Added |
| Legal & General Group Plc | 318,013 | $9.35M | 0.00% | +8,539+2.8% | Added |
| Barclays PLC | 338,629 | $9.95M | 0.01% | −51,681−13.2% | Reduced |
| Parametric Portfolio Associates LLC | 356,205 | $10.5M | 0.01% | +62,222+21.2% | Added |
| Bank of America Corp | 372,611 | $11.0M | 0.00% | +59,681+19.1% | Added |
| Credit Suisse AG | 375,120 | $11.0M | 0.01% | −136,022−26.6% | Reduced |
| Great Lakes Advisors, LLC | 375,165 | $11.0M | 0.17% | +375,165 | New |
| New York State Common Retirement Fund | 386,758 | $11.4M | 0.01% | +24,054+6.6% | Added |
| Assenagon Asset Management S.A. | 396,911 | $11.7M | 0.04% | +16,786+4.4% | Added |
| MESIROW FINANCIAL INVESTMENT MANAGEMENT - Equity & Fixed Income | 481,191 | $14.1M | 1.56% | −5,995−1.2% | Reduced |
| Russell Investments Group, Ltd. | 481,794 | $14.2M | 0.02% | −145,603−23.2% | Reduced |
| Two Sigma Advisers, LP | 525,085 | $15.4M | 0.04% | −147,600−21.9% | Reduced |
| Epoch Investment Partners, Inc. | 526,406 | $15.5M | 0.08% | +7,045+1.4% | Added |
| Barington Capital Group, L.P. | 530,100 | $15.6M | 15.57% | 00.0% | Unchanged |
| Heard Capital LLC | 659,384 | $19.4M | 3.03% | −56,956−8.0% | Reduced |
| Deutsche Bank AG | 659,623 | $19.4M | 0.01% | +336,380+104.1% | Added |
| Glenmede Trust Co NA | 699,960 | $20.6M | 0.10% | −6,410−0.9% | Reduced |
| Principal Financial Group Inc | 737,958 | $21.7M | 0.01% | −13,883−1.8% | Reduced |
| Charles Schwab Investment Management Inc | 774,459 | $22.8M | 0.01% | +19,083+2.5% | Added |
| Millennium Management LLC | 778,034 | $22.9M | 0.03% | −82,449−9.6% | Reduced |
| JPMorgan Chase & Co | 832,040 | $24.5M | 0.00% | +85,477+11.4% | Added |
| Morgan Stanley | 843,492 | $24.8M | 0.00% | +273,517+48.0% | Added |
| Goldman Sachs Group Inc | 896,190 | $26.3M | 0.01% | +609,340+212.4% | Added |
| Shannon River Fund Management LLC | 930,973 | $27.4M | 2.78% | +193,000+26.2% | Added |
| Invesco Ltd. | 1,030,521 | $30.3M | 0.01% | +167,192+19.4% | Added |
| Norges Bank | 1,089,477 | $32.0M | 0.01% | +26,484+2.5% | Added |
| Bank of New York Mellon Corp | 1,189,153 | $34.9M | 0.01% | +180,473+17.9% | Added |
| D. E. Shaw & Co., Inc. | 1,354,013 | $39.8M | 0.05% | −142,176−9.5% | Reduced |
| Nuveen Asset Management, LLC | 1,376,964 | $40.5M | 0.01% | −265,873−16.2% | Reduced |
| Northern Trust Corp | 1,623,871 | $47.7M | 0.01% | −48,023−2.9% | Reduced |
| Lord, Abbett & Co. LLC | 1,725,366 | $50.7M | 0.12% | +958,709+125.1% | Added |
| Geode Capital Management, LLC | 1,915,819 | $56.3M | 0.01% | +61,451+3.3% | Added |
| Silvercrest Asset Management Group LLC | 2,359,341 | $68.8M | 0.44% | −96,148−3.9% | Reduced |
| Wellington Management Group LLP | 2,390,212 | $70.2M | 0.01% | −3,979−0.2% | Reduced |
| Westwood Holdings Group Inc. | 2,921,834 | $85.9M | 0.77% | +2,921,834 | New |
| Loomis Sayles & Co L P | 3,075,088 | $90.4M | 0.11% | +32,127+1.1% | Added |
| Neuberger Berman Group LLC | 3,519,066 | $102.0M | 0.08% | −601,244−14.6% | Reduced |
| Dimensional Fund Advisors LP | 3,631,247 | $106.7M | 0.03% | −24,832−0.7% | Reduced |
| Lynrock Lake LP | 3,998,852 | $117.5M | 7.82% | −3,667,814−47.8% | Reduced |
| State Street Corp | 4,834,486 | $142.1M | 0.01% | +104,072+2.2% | Added |
| Ameriprise Financial Inc | 5,403,078 | $158.8M | 0.04% | +83,911+1.6% | Added |
| Vanguard Group Inc | 11,861,940 | $348.6M | 0.01% | +52,720+0.4% | Added |
| BlackRock Inc. | 17,152,046 | $504.1M | 0.01% | +610,638+3.7% | Added |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −100,424−100.0% | Sold out |
| Skandinaviska Enskilda Banken AB (publ) | 0 | $0 | 0.00% | −87,500−100.0% | Sold out |
| Canada Pension Plan Investment Board | 0 | $0 | 0.00% | −66,000−100.0% | Sold out |
| Richard Bernstein Advisors LLC | 0 | $0 | 0.00% | −61,899−100.0% | Sold out |
| Arrowstreet Capital, Limited Partnership | 0 | $0 | 0.00% | −61,600−100.0% | Sold out |
| Connor, Clark & Lunn Investment Management Ltd. | 0 | $0 | 0.00% | −52,388−100.0% | Sold out |
| Shelter Haven Capital Management, L.P. | 0 | $0 | 0.00% | −50,000−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −40,805−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −32,482−100.0% | Sold out |
| Ergoteles LLC | 0 | $0 | 0.00% | −31,500−100.0% | Sold out |
| Boothbay Fund Management, LLC | 0 | $0 | 0.00% | −31,297−100.0% | Sold out |
| AMP Capital Investors Ltd | 0 | $0 | 0.00% | −20,800−100.0% | Sold out |
| Jaffetilchin Investment Partners, LLC | 0 | $0 | 0.00% | −20,443−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −19,700−100.0% | Sold out |
| Quantinno Capital Management LP | 0 | $0 | 0.00% | −19,148−100.0% | Sold out |
| HSBC Holdings PLC | 0 | $0 | 0.00% | −14,376−100.0% | Sold out |
| Royce & Associates LP | 0 | $0 | 0.00% | −13,988−100.0% | Sold out |
| Sawtooth Solutions, LLC | 0 | $0 | 0.00% | −13,972−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −12,281−100.0% | Sold out |
| Trexquant Investment LP | 0 | $0 | 0.00% | −10,807−100.0% | Sold out |
| CIBC Asset Management Inc | 0 | $0 | 0.00% | −10,086−100.0% | Sold out |
| Sciencast Management LP | 0 | $0 | 0.00% | −9,649−100.0% | Sold out |
| Harbour Investments, Inc. | 0 | $0 | 0.00% | −8,156−100.0% | Sold out |
| Arkadios Wealth Advisors | 0 | $0 | 0.00% | −2,000−100.0% | Sold out |
| Lountzis Asset Management, LLC | 0 | $0 | 0.00% | −450−100.0% | Sold out |
| Meeder Asset Management Inc | 0 | $0 | 0.00% | −246−100.0% | Sold out |
| O'Shaughnessy Asset Management, LLC | 0 | $0 | 0.00% | −159−100.0% | Sold out |
| RPG Investment Advisory, LLC | 0 | $0 | 0.00% | −150−100.0% | Sold out |
| Manchester Capital Management LLC | 0 | $0 | 0.00% | −81−100.0% | Sold out |
| Alexandria Capital, LLC | – | – | – | – | Not filed |
| Marshall Wace North America L.P. | – | – | – | – | Not filed |
| Sonora Investment Management, LLC | – | – | – | – | Not filed |
| Wealth Quarterback LLC | – | – | – | – | Not filed |