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, Q2 2023
Institutional positions in Rambus Inc as of Jun 30, 2023. 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
- 393
- +58 vs. Q1 2023
- Shares held
- 95.7M
- +2.08M (+2.2%) vs. Q1 2023
- Total value
- $6.14B
- +$1.33B (+27.5%) vs. Q1 2023
- New holders
- 95
- 139 more added
- Sold out
- 37
- 128 more reduced
2 institutions that held it in Q1 2023 haven't filed for Q2 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2023: 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, Q2 2023
Shares, value and share of portfolio for each institution holding Rambus Inc; share changes are against Q1 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Wolverine Trading, LLC | 17,046 | $1.08M | 0.01% | −2,688−13.6% | Reduced |
| ProShare Advisors LLC | 17,035 | $1.09M | 0.00% | +1,520+9.8% | Added |
| Janney Montgomery Scott LLC | 17,396 | $1.12M | 0.00% | +6,654+61.9% | Added |
| National Asset Management, Inc. | 17,577 | $1.13M | 0.03% | +2,094+13.5% | Added |
| Virtus Investment Advisers, Inc. | 18,125 | $1.16M | 0.79% | −22,601−55.5% | Reduced |
| Everence Capital Management Inc | 18,385 | $1.18M | 0.10% | 00.0% | Unchanged |
| Handelsbanken Fonder AB | 18,597 | $1.19M | 0.01% | 00.0% | Unchanged |
| Jackson Creek Investment Advisors LLC | 18,703 | $1.20M | 0.48% | −6,610−26.1% | Reduced |
| GTS Securities LLC | 19,061 | $1.22M | 0.04% | +19,061 | New |
| Sawtooth Solutions, LLC | 19,211 | $1.23M | 0.03% | +19,211 | New |
| Bleakley Financial Group, LLC | 19,211 | $1.23M | 0.04% | +19,211 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 19,321 | $1.24M | 0.01% | +1,865+10.7% | Added |
| Chartwell Investment Partners, LLC | 19,339 | $1.24M | 0.04% | +19,339 | New |
| Geneva Partners, LLC | 19,550 | $1.25M | 0.82% | +19,550 | New |
| Diversified Trust Co | 20,388 | $1.31M | 0.05% | +198+1.0% | Added |
| JB Capital LLC | 20,808 | $1.34M | 0.11% | −90−0.4% | Reduced |
| Mutual of America Capital Management LLC | 21,259 | $1.36M | 0.02% | −875−4.0% | Reduced |
| Harvest Investment Services, LLC | 21,572 | $1.38M | 0.79% | +21,572 | New |
| Zacks Investment Management | 22,328 | $1.43M | 0.02% | +22,328 | New |
| Two Sigma Investments, LP | 22,800 | $1.46M | 0.00% | +6,100+36.5% | Added |
| Two Sigma Advisers, LP | 22,900 | $1.47M | 0.00% | −64,885−73.9% | Reduced |
| Aigen Investment Management, LP | 23,941 | $1.54M | 0.23% | +23,941 | New |
| Eisler Capital (US) LLC | 23,960 | $1.54M | 0.84% | +23,960 | New |
| Yorktown Management & Research Co Inc | 24,600 | $1.58M | 1.70% | −6,900−21.9% | Reduced |
| Capital Fund Management S.A. | 25,065 | $1.61M | 0.03% | +2,700+12.1% | Added |
| Guggenheim Capital LLC | 25,665 | $1.65M | 0.01% | −8,816−25.6% | Reduced |
| Jennison Associates LLC | 26,796 | $1.72M | 0.00% | +5,592+26.4% | Added |
| Raymond James & Associates | 27,992 | $1.80M | 0.00% | +4,975+21.6% | Added |
| Victory Capital Management Inc | 28,128 | $1.80M | 0.00% | −7,536−21.1% | Reduced |
| Syntal Capital Partners, LLC | 28,385 | $1.82M | 0.73% | −4,020−12.4% | Reduced |
| Creative Planning | 30,101 | $1.93M | 0.00% | +6,154+25.7% | Added |
| Caption Management, LLC | 30,339 | $1.95M | 0.34% | −5,405−15.1% | Reduced |
| Arizona State Retirement System | 30,568 | $1.96M | 0.02% | −576−1.8% | Reduced |
| STRS Ohio | 30,900 | $1.98M | 0.01% | −2,300−6.9% | Reduced |
| State Board of Administration of Florida Retirement System | 30,973 | $1.99M | 0.00% | −4,170−11.9% | Reduced |
| Royal Bank of Canada | 31,825 | $2.04M | 0.00% | −10,279−24.4% | Reduced |
| Pictet Asset Management SA | 33,157 | $2.13M | 0.00% | +18,450+125.5% | Added |
| Cambiar Investors LLC | 33,754 | $2.17M | 0.09% | −20,715−38.0% | Reduced |
| Oregon Public Employees Retirement Fund | 33,989 | $2.18M | 0.03% | −700−2.0% | Reduced |
| Mackenzie Financial Corp | 34,628 | $2.21M | 0.00% | +142+0.4% | Added |
| Advisor Group Holdings, Inc. | 35,010 | $2.25M | 0.00% | −29,868−46.0% | Reduced |
| EAM Investors, LLC | 35,142 | $2.26M | 0.42% | −4,035−10.3% | Reduced |
| Duality Advisers, LP | 35,246 | $2.26M | 0.28% | +20,527+139.5% | Added |
| Acadian Asset Management LLC | 35,383 | $2.27M | 0.01% | +35,383 | New |
| American Century Companies Inc | 36,030 | $2.31M | 0.00% | +8,146+29.2% | Added |
| TD Asset Management Inc | 36,500 | $2.34M | 0.00% | +17,600+93.1% | Added |
| China Universal Asset Management Co., Ltd. | 39,000 | $2.50M | 0.77% | 00.0% | Unchanged |
| Quantbot Technologies LP | 39,464 | $2.53M | 0.17% | +37,611+2,029.7% | Added |
| Concentric Capital Strategies, LP | 42,256 | $2.71M | 0.58% | −10,116−19.3% | Reduced |
| Maryland State Retirement & Pension System | 42,406 | $2.72M | 0.06% | −878−2.0% | Reduced |
| Teacher Retirement System of Texas | 42,558 | $2.73M | 0.02% | +2,920+7.4% | Added |
| HSBC Holdings PLC | 43,256 | $2.79M | 0.00% | +38,828+876.9% | Added |
| AE Wealth Management LLC | 44,185 | $2.84M | 0.02% | +2,416+5.8% | Added |
| Manufacturers Life Insurance Company, The | 44,247 | $2.84M | 0.00% | +618+1.4% | Added |
| Twinbeech Capital LP | 45,446 | $2.92M | 0.06% | +45,446 | New |
| Envestnet Asset Management Inc | 46,643 | $2.99M | 0.00% | −118,307−71.7% | Reduced |
| Empowered Funds, LLC | 47,481 | $3.05M | 0.11% | −15,928−25.1% | Reduced |
| EA Series Trust | 47,481 | $3.05M | 0.11% | +47,481 | New |
| Franklin Resources Inc | 48,655 | $3.12M | 0.00% | +43,953+934.8% | Added |
| Amalgamated Bank | 49,416 | $3.17M | 0.03% | +908+1.9% | Added |
| Vident Investment Advisory, LLC | 49,698 | $3.19M | 0.11% | +220.0% | Added |
| Segall Bryant & Hamill, LLC | 51,191 | $3.28M | 0.03% | +51,191 | New |
| ClariVest Asset Management LLC | 53,024 | $3.40M | 0.17% | +21,760+69.6% | Added |
| Tudor Investment Corp Et Al | 53,977 | $3.46M | 0.06% | −4,410−7.6% | Reduced |
| Ensign Peak Advisors, Inc | 54,607 | $3.50M | 0.01% | +21,690+65.9% | Added |
| Louisiana State Employees Retirement System | 57,100 | $3.66M | 0.08% | +7,000+14.0% | Added |
| MetLife Investment Management | 57,491 | $3.69M | 0.03% | +1,472+2.6% | Added |
| American International Group, Inc. | 58,574 | $3.76M | 0.02% | +180+0.3% | Added |
| O'Neil Global Advisors, Inc. | 59,174 | $3.80M | 0.79% | +59,174 | New |
| BNP Paribas Arbitrage, SA | 59,477 | $3.82M | 0.01% | −58,801−49.7% | Reduced |
| Yousif Capital Management, LLC | 60,062 | $3.85M | 0.05% | −2,874−4.6% | Reduced |
| Zweig-DiMenna Associates LLC | 60,750 | $3.90M | 0.52% | +60,750 | New |
| Deutsche Bank AG | 61,539 | $3.95M | 0.00% | −21,568−26.0% | Reduced |
| State of New Jersey Common Pension Fund D | 62,389 | $4.00M | 0.01% | +6,660+12.0% | Added |
| Value Aligned Research Advisors, LLC | 62,790 | $4.03M | 1.26% | +20,000+46.7% | Added |
| Teachers Retirement System of the State of Kentucky | 63,292 | $4.06M | 0.04% | +1,941+3.2% | Added |
| Discovery Capital Management, LLC | 64,474 | $4.14M | 0.48% | +64,474 | New |
| Jacobs Levy Equity Management, Inc | 68,222 | $4.38M | 0.03% | −134,804−66.4% | Reduced |
| Nomura Holdings Inc | 68,601 | $4.40M | 0.04% | +68,601 | New |
| Moody Aldrich Partners LLC | 70,070 | $4.50M | 0.87% | +70,070 | New |
| EAM Global Investors LLC | 70,368 | $4.52M | 1.33% | −46,247−39.7% | Reduced |
| New York State Teachers Retirement System | 70,447 | $4.52M | 0.01% | +8,134+13.1% | Added |
| State of Tennessee, Treasury Department | 70,846 | $4.55M | 0.02% | −14,237−16.7% | Reduced |
| State of Alaska, Department of Revenue | 71,617 | $4.59M | 0.05% | −2,001−2.7% | Reduced |
| Thornburg Investment Management Inc | 77,246 | $4.96M | 0.08% | +77,246 | New |
| Jackson Square Partners, LLC | 78,606 | $5.04M | 0.15% | −14,472−15.5% | Reduced |
| Jane Street Group, LLC | 80,444 | $5.16M | 0.01% | +18,768+30.4% | Added |
| Rice Hall James & Associates, LLC | 82,998 | $5.33M | 0.30% | −66,238−44.4% | Reduced |
| Investors Towarzystwo Funduszy Inwestycyjnych Spolka Akcyjna | 83,268 | $5.34M | 2.55% | +868+1.1% | Added |
| Lisanti Capital Growth, LLC | 85,255 | $5.47M | 0.76% | +85,255 | New |
| Janus Henderson Group PLC | 88,473 | $5.68M | 0.00% | +39,781+81.7% | Added |
| Hillsdale Investment Management Inc. | 89,860 | $5.77M | 0.53% | −36,240−28.7% | Reduced |
| Stifel Financial Corp | 91,078 | $5.84M | 0.01% | −1,245−1.3% | Reduced |
| State of Wisconsin Investment Board | 91,879 | $5.90M | 0.02% | −16,734−15.4% | Reduced |
| Bridgeway Capital Management, LLC | 92,200 | $5.92M | 0.14% | 00.0% | Unchanged |
| Texas Permanent School Fund | 95,836 | $6.15M | 0.06% | −554−0.6% | Reduced |
| Russell Investments Group, Ltd. | 99,214 | $6.36M | 0.01% | −174,370−63.7% | Reduced |
| Barclays PLC | 100,766 | $6.47M | 0.00% | +9,671+10.6% | Added |
| LPL Financial LLC | 102,398 | $6.57M | 0.00% | +11,628+12.8% | Added |
| Thrivent Financial for Lutherans | 104,124 | $6.68M | 0.02% | −126,094−54.8% | Reduced |