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 |
|---|---|---|---|---|---|
| BlackRock Inc. | 17,152,046 | $504.1M | 0.01% | +610,638+3.7% | Added |
| Vanguard Group Inc | 11,861,940 | $348.6M | 0.01% | +52,720+0.4% | Added |
| Ameriprise Financial Inc | 5,403,078 | $158.8M | 0.04% | +83,911+1.6% | Added |
| State Street Corp | 4,834,486 | $142.1M | 0.01% | +104,072+2.2% | Added |
| Lynrock Lake LP | 3,998,852 | $117.5M | 7.82% | −3,667,814−47.8% | Reduced |
| Dimensional Fund Advisors LP | 3,631,247 | $106.7M | 0.03% | −24,832−0.7% | Reduced |
| Neuberger Berman Group LLC | 3,519,066 | $102.0M | 0.08% | −601,244−14.6% | Reduced |
| Loomis Sayles & Co L P | 3,075,088 | $90.4M | 0.11% | +32,127+1.1% | Added |
| Westwood Holdings Group Inc. | 2,921,834 | $85.9M | 0.77% | +2,921,834 | New |
| Wellington Management Group LLP | 2,390,212 | $70.2M | 0.01% | −3,979−0.2% | Reduced |
| Silvercrest Asset Management Group LLC | 2,359,341 | $68.8M | 0.44% | −96,148−3.9% | Reduced |
| Geode Capital Management, LLC | 1,915,819 | $56.3M | 0.01% | +61,451+3.3% | Added |
| Lord, Abbett & Co. LLC | 1,725,366 | $50.7M | 0.12% | +958,709+125.1% | Added |
| Northern Trust Corp | 1,623,871 | $47.7M | 0.01% | −48,023−2.9% | Reduced |
| Nuveen Asset Management, LLC | 1,376,964 | $40.5M | 0.01% | −265,873−16.2% | Reduced |
| D. E. Shaw & Co., Inc. | 1,354,013 | $39.8M | 0.05% | −142,176−9.5% | Reduced |
| Bank of New York Mellon Corp | 1,189,153 | $34.9M | 0.01% | +180,473+17.9% | Added |
| Norges Bank | 1,089,477 | $32.0M | 0.01% | +26,484+2.5% | Added |
| Invesco Ltd. | 1,030,521 | $30.3M | 0.01% | +167,192+19.4% | Added |
| Shannon River Fund Management LLC | 930,973 | $27.4M | 2.78% | +193,000+26.2% | Added |
| Goldman Sachs Group Inc | 896,190 | $26.3M | 0.01% | +609,340+212.4% | Added |
| Morgan Stanley | 843,492 | $24.8M | 0.00% | +273,517+48.0% | Added |
| JPMorgan Chase & Co | 832,040 | $24.5M | 0.00% | +85,477+11.4% | Added |
| Millennium Management LLC | 778,034 | $22.9M | 0.03% | −82,449−9.6% | Reduced |
| Charles Schwab Investment Management Inc | 774,459 | $22.8M | 0.01% | +19,083+2.5% | Added |
| Principal Financial Group Inc | 737,958 | $21.7M | 0.01% | −13,883−1.8% | Reduced |
| Glenmede Trust Co NA | 699,960 | $20.6M | 0.10% | −6,410−0.9% | Reduced |
| Deutsche Bank AG | 659,623 | $19.4M | 0.01% | +336,380+104.1% | Added |
| Heard Capital LLC | 659,384 | $19.4M | 3.03% | −56,956−8.0% | Reduced |
| Barington Capital Group, L.P. | 530,100 | $15.6M | 15.57% | 00.0% | Unchanged |
| Epoch Investment Partners, Inc. | 526,406 | $15.5M | 0.08% | +7,045+1.4% | Added |
| Two Sigma Advisers, LP | 525,085 | $15.4M | 0.04% | −147,600−21.9% | Reduced |
| Russell Investments Group, Ltd. | 481,794 | $14.2M | 0.02% | −145,603−23.2% | Reduced |
| MESIROW FINANCIAL INVESTMENT MANAGEMENT - Equity & Fixed Income | 481,191 | $14.1M | 1.56% | −5,995−1.2% | Reduced |
| Assenagon Asset Management S.A. | 396,911 | $11.7M | 0.04% | +16,786+4.4% | Added |
| New York State Common Retirement Fund | 386,758 | $11.4M | 0.01% | +24,054+6.6% | Added |
| Great Lakes Advisors, LLC | 375,165 | $11.0M | 0.17% | +375,165 | New |
| Credit Suisse AG | 375,120 | $11.0M | 0.01% | −136,022−26.6% | Reduced |
| Bank of America Corp | 372,611 | $11.0M | 0.00% | +59,681+19.1% | Added |
| Parametric Portfolio Associates LLC | 356,205 | $10.5M | 0.01% | +62,222+21.2% | Added |
| Barclays PLC | 338,629 | $9.95M | 0.01% | −51,681−13.2% | Reduced |
| Legal & General Group Plc | 318,013 | $9.35M | 0.00% | +8,539+2.8% | Added |
| Mirae Asset Global Investments Co., Ltd. | 303,533 | $8.92M | 0.02% | +15,334+5.3% | Added |
| Rhumbline Advisers | 300,110 | $8.82M | 0.01% | −10,048−3.2% | Reduced |
| Renaissance Technologies LLC | 296,486 | $8.71M | 0.01% | +87,626+42.0% | Added |
| Royal Bank of Canada | 284,790 | $8.37M | 0.00% | +5,123+1.8% | Added |
| Primecap Management Co | 267,963 | $7.88M | 0.01% | −18,300−6.4% | Reduced |
| Penn Capital Management Co Inc | 326,307 | $7.53M | 0.76% | +702+0.2% | Added |
| Swiss National Bank | 239,600 | $7.04M | 0.00% | −9,000−3.6% | Reduced |
| Public Sector Pension Investment Board | 222,752 | $6.55M | 0.04% | −9,917−4.3% | Reduced |
| Jacobs Levy Equity Management, Inc | 215,790 | $6.34M | 0.04% | +184,590+591.6% | Added |
| Crestline Management, LP | 206,538 | $6.07M | 0.46% | +45,367+28.1% | Added |
| Captrust Financial Advisors | 205,144 | $6.03M | 0.04% | +69,995+51.8% | Added |
| AXA S.A. | 199,900 | $5.88M | 0.02% | −115,200−36.6% | Reduced |
| Two Sigma Investments, LP | 183,889 | $5.40M | 0.01% | −111,212−37.7% | Reduced |
| HighTower Advisors, LLC | 180,402 | $5.30M | 0.01% | +180,402 | New |
| BNP Paribas Arbitrage, SA | 168,596 | $4.96M | 0.01% | −6,084−3.5% | Reduced |
| Wells Fargo & Company | 168,143 | $4.94M | 0.00% | +27,669+19.7% | Added |
| Alliancebernstein L.P. | 158,454 | $4.66M | 0.00% | −6,304−3.8% | Reduced |
| Public Employees Retirement System of Ohio | 156,362 | $4.59M | 0.02% | +156,362 | New |
| LPL Financial LLC | 154,838 | $4.55M | 0.00% | +2,494+1.6% | Added |
| Putnam Investments LLC | 152,240 | $4.47M | 0.01% | −500−0.3% | Reduced |
| California State Teachers Retirement System | 151,345 | $4.45M | 0.01% | +600+0.4% | Added |
| UBS Asset Management Americas Inc | 144,091 | $4.23M | 0.00% | +7,336+5.4% | Added |
| EAM Investors, LLC | 137,360 | $4.04M | 0.66% | +137,360 | New |
| Citigroup Inc | 130,022 | $3.82M | 0.00% | +40,007+44.4% | Added |
| SG Americas Securities, LLC | 126,879 | $3.73M | 0.02% | −81,279−39.0% | Reduced |
| First Trust Advisors LP | 121,952 | $3.58M | 0.00% | −42,920−26.0% | Reduced |
| State of Wisconsin Investment Board | 119,300 | $3.51M | 0.01% | +119,300 | New |
| Schroder Investment Management Group | 118,965 | $3.50M | 0.00% | −6,380−5.1% | Reduced |
| Prudential Financial Inc | 115,531 | $3.40M | 0.00% | −1,170−1.0% | Reduced |
| Nomura Holdings Inc | 108,028 | $3.17M | 0.02% | +108,028 | New |
| SEI Investments Co | 103,112 | $3.07M | 0.01% | +50,888+97.4% | Added |
| State of New Jersey Common Pension Fund D | 103,145 | $3.03M | 0.01% | −9,417−8.4% | Reduced |
| Yousif Capital Management, LLC | 102,219 | $3.00M | 0.03% | +102,219 | New |
| China Universal Asset Management Co., Ltd. | 95,000 | $2.79M | 0.66% | +95,000 | New |
| Great West Life Assurance Co | 94,754 | $2.78M | 0.01% | +1,265+1.4% | Added |
| Cambiar Investors LLC | 93,262 | $2.74M | 0.09% | −24,432−20.8% | Reduced |
| Stifel Financial Corp | 91,330 | $2.68M | 0.00% | +841+0.9% | Added |
| Thrivent Financial for Lutherans | 89,002 | $2.62M | 0.01% | +980+1.1% | Added |
| EAM Global Investors LLC | 88,937 | $2.61M | 0.46% | +50,826+133.4% | Added |
| Group One Trading, L.P. | 88,639 | $2.60M | 0.05% | +88,639 | New |
| Cypress Capital Management LLC (WY) | 84,110 | $2.47M | 2.07% | +84,110 | New |
| State of Tennessee, Treasury Department | 83,081 | $2.44M | 0.01% | 00.0% | Unchanged |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 82,658 | $2.43M | 0.03% | +91+0.1% | Added |
| Texas Permanent School Fund | 79,194 | $2.33M | 0.03% | −1,361−1.7% | Reduced |
| Comerica Bank | 95,298 | $2.32M | 0.02% | −3,665−3.7% | Reduced |
| State of Alaska, Department of Revenue | 77,436 | $2.27M | 0.02% | −1,965−2.5% | Reduced |
| American International Group, Inc. | 66,033 | $1.94M | 0.01% | −2,086−3.1% | Reduced |
| Los Angeles Capital Management LLC | 65,647 | $1.93M | 0.01% | +4,715+7.7% | Added |
| New York State Teachers Retirement System | 63,502 | $1.87M | 0.00% | +4,441+7.5% | Added |
| Ziegler Capital Management, LLC | 62,692 | $1.84M | 0.07% | −20,054−24.2% | Reduced |
| State Board of Administration of Florida Retirement System | 61,733 | $1.81M | 0.00% | −139−0.2% | Reduced |
| Man Group plc | 60,319 | $1.77M | 0.01% | +48,387+405.5% | Added |
| AQR Capital Management LLC | 60,108 | $1.77M | 0.00% | +11,967+24.9% | Added |
| Martingale Asset Management L P | 57,870 | $1.70M | 0.02% | +11,997+26.2% | Added |
| Manufacturers Life Insurance Company, The | 54,983 | $1.62M | 0.00% | −785−1.4% | Reduced |
| Stephens Inc | 54,450 | $1.60M | 0.02% | +54,450 | New |
| Raymond James Financial Services Advisors, Inc. | 53,176 | $1.56M | 0.00% | +53,176 | New |
| Louisiana State Employees Retirement System | 52,900 | $1.55M | 0.03% | +400+0.8% | Added |