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 |
|---|---|---|---|---|---|
| Stifel Financial Corp | 91,078 | $5.84M | 0.01% | −1,245−1.3% | Reduced |
| Hillsdale Investment Management Inc. | 89,860 | $5.77M | 0.53% | −36,240−28.7% | Reduced |
| Janus Henderson Group PLC | 88,473 | $5.68M | 0.00% | +39,781+81.7% | Added |
| Lisanti Capital Growth, LLC | 85,255 | $5.47M | 0.76% | +85,255 | New |
| Investors Towarzystwo Funduszy Inwestycyjnych Spolka Akcyjna | 83,268 | $5.34M | 2.55% | +868+1.1% | Added |
| Rice Hall James & Associates, LLC | 82,998 | $5.33M | 0.30% | −66,238−44.4% | Reduced |
| Jane Street Group, LLC | 80,444 | $5.16M | 0.01% | +18,768+30.4% | Added |
| Jackson Square Partners, LLC | 78,606 | $5.04M | 0.15% | −14,472−15.5% | Reduced |
| Thornburg Investment Management Inc | 77,246 | $4.96M | 0.08% | +77,246 | New |
| State of Alaska, Department of Revenue | 71,617 | $4.59M | 0.05% | −2,001−2.7% | Reduced |
| State of Tennessee, Treasury Department | 70,846 | $4.55M | 0.02% | −14,237−16.7% | Reduced |
| New York State Teachers Retirement System | 70,447 | $4.52M | 0.01% | +8,134+13.1% | Added |
| EAM Global Investors LLC | 70,368 | $4.52M | 1.33% | −46,247−39.7% | Reduced |
| Moody Aldrich Partners LLC | 70,070 | $4.50M | 0.87% | +70,070 | New |
| Nomura Holdings Inc | 68,601 | $4.40M | 0.04% | +68,601 | New |
| Jacobs Levy Equity Management, Inc | 68,222 | $4.38M | 0.03% | −134,804−66.4% | Reduced |
| Discovery Capital Management, LLC | 64,474 | $4.14M | 0.48% | +64,474 | New |
| Teachers Retirement System of the State of Kentucky | 63,292 | $4.06M | 0.04% | +1,941+3.2% | Added |
| Value Aligned Research Advisors, LLC | 62,790 | $4.03M | 1.26% | +20,000+46.7% | Added |
| State of New Jersey Common Pension Fund D | 62,389 | $4.00M | 0.01% | +6,660+12.0% | Added |
| Deutsche Bank AG | 61,539 | $3.95M | 0.00% | −21,568−26.0% | Reduced |
| Zweig-DiMenna Associates LLC | 60,750 | $3.90M | 0.52% | +60,750 | New |
| Yousif Capital Management, LLC | 60,062 | $3.85M | 0.05% | −2,874−4.6% | Reduced |
| BNP Paribas Arbitrage, SA | 59,477 | $3.82M | 0.01% | −58,801−49.7% | Reduced |
| O'Neil Global Advisors, Inc. | 59,174 | $3.80M | 0.79% | +59,174 | New |
| American International Group, Inc. | 58,574 | $3.76M | 0.02% | +180+0.3% | Added |
| MetLife Investment Management | 57,491 | $3.69M | 0.03% | +1,472+2.6% | Added |
| Louisiana State Employees Retirement System | 57,100 | $3.66M | 0.08% | +7,000+14.0% | Added |
| Ensign Peak Advisors, Inc | 54,607 | $3.50M | 0.01% | +21,690+65.9% | Added |
| Tudor Investment Corp Et Al | 53,977 | $3.46M | 0.06% | −4,410−7.6% | Reduced |
| ClariVest Asset Management LLC | 53,024 | $3.40M | 0.17% | +21,760+69.6% | Added |
| Segall Bryant & Hamill, LLC | 51,191 | $3.28M | 0.03% | +51,191 | New |
| Vident Investment Advisory, LLC | 49,698 | $3.19M | 0.11% | +220.0% | Added |
| Amalgamated Bank | 49,416 | $3.17M | 0.03% | +908+1.9% | Added |
| Franklin Resources Inc | 48,655 | $3.12M | 0.00% | +43,953+934.8% | Added |
| 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 |
| Envestnet Asset Management Inc | 46,643 | $2.99M | 0.00% | −118,307−71.7% | Reduced |
| Twinbeech Capital LP | 45,446 | $2.92M | 0.06% | +45,446 | New |
| Manufacturers Life Insurance Company, The | 44,247 | $2.84M | 0.00% | +618+1.4% | Added |
| AE Wealth Management LLC | 44,185 | $2.84M | 0.02% | +2,416+5.8% | Added |
| HSBC Holdings PLC | 43,256 | $2.79M | 0.00% | +38,828+876.9% | Added |
| Teacher Retirement System of Texas | 42,558 | $2.73M | 0.02% | +2,920+7.4% | Added |
| Maryland State Retirement & Pension System | 42,406 | $2.72M | 0.06% | −878−2.0% | Reduced |
| Concentric Capital Strategies, LP | 42,256 | $2.71M | 0.58% | −10,116−19.3% | Reduced |
| Quantbot Technologies LP | 39,464 | $2.53M | 0.17% | +37,611+2,029.7% | Added |
| China Universal Asset Management Co., Ltd. | 39,000 | $2.50M | 0.77% | 00.0% | Unchanged |
| TD Asset Management Inc | 36,500 | $2.34M | 0.00% | +17,600+93.1% | Added |
| American Century Companies Inc | 36,030 | $2.31M | 0.00% | +8,146+29.2% | Added |
| Acadian Asset Management LLC | 35,383 | $2.27M | 0.01% | +35,383 | New |
| Duality Advisers, LP | 35,246 | $2.26M | 0.28% | +20,527+139.5% | Added |
| EAM Investors, LLC | 35,142 | $2.26M | 0.42% | −4,035−10.3% | Reduced |
| Advisor Group Holdings, Inc. | 35,010 | $2.25M | 0.00% | −29,868−46.0% | Reduced |
| Mackenzie Financial Corp | 34,628 | $2.21M | 0.00% | +142+0.4% | Added |
| Oregon Public Employees Retirement Fund | 33,989 | $2.18M | 0.03% | −700−2.0% | Reduced |
| Cambiar Investors LLC | 33,754 | $2.17M | 0.09% | −20,715−38.0% | Reduced |
| Pictet Asset Management SA | 33,157 | $2.13M | 0.00% | +18,450+125.5% | Added |
| Royal Bank of Canada | 31,825 | $2.04M | 0.00% | −10,279−24.4% | Reduced |
| State Board of Administration of Florida Retirement System | 30,973 | $1.99M | 0.00% | −4,170−11.9% | Reduced |
| STRS Ohio | 30,900 | $1.98M | 0.01% | −2,300−6.9% | Reduced |
| Arizona State Retirement System | 30,568 | $1.96M | 0.02% | −576−1.8% | Reduced |
| Caption Management, LLC | 30,339 | $1.95M | 0.34% | −5,405−15.1% | Reduced |
| Creative Planning | 30,101 | $1.93M | 0.00% | +6,154+25.7% | Added |
| Syntal Capital Partners, LLC | 28,385 | $1.82M | 0.73% | −4,020−12.4% | Reduced |
| Victory Capital Management Inc | 28,128 | $1.80M | 0.00% | −7,536−21.1% | Reduced |
| Raymond James & Associates | 27,992 | $1.80M | 0.00% | +4,975+21.6% | Added |
| Jennison Associates LLC | 26,796 | $1.72M | 0.00% | +5,592+26.4% | Added |
| Guggenheim Capital LLC | 25,665 | $1.65M | 0.01% | −8,816−25.6% | Reduced |
| Capital Fund Management S.A. | 25,065 | $1.61M | 0.03% | +2,700+12.1% | Added |
| Yorktown Management & Research Co Inc | 24,600 | $1.58M | 1.70% | −6,900−21.9% | Reduced |
| Eisler Capital (US) LLC | 23,960 | $1.54M | 0.84% | +23,960 | New |
| Aigen Investment Management, LP | 23,941 | $1.54M | 0.23% | +23,941 | New |
| Two Sigma Advisers, LP | 22,900 | $1.47M | 0.00% | −64,885−73.9% | Reduced |
| Two Sigma Investments, LP | 22,800 | $1.46M | 0.00% | +6,100+36.5% | Added |
| Zacks Investment Management | 22,328 | $1.43M | 0.02% | +22,328 | New |
| Harvest Investment Services, LLC | 21,572 | $1.38M | 0.79% | +21,572 | New |
| Mutual of America Capital Management LLC | 21,259 | $1.36M | 0.02% | −875−4.0% | Reduced |
| JB Capital LLC | 20,808 | $1.34M | 0.11% | −90−0.4% | Reduced |
| Diversified Trust Co | 20,388 | $1.31M | 0.05% | +198+1.0% | Added |
| Geneva Partners, LLC | 19,550 | $1.25M | 0.82% | +19,550 | New |
| Chartwell Investment Partners, LLC | 19,339 | $1.24M | 0.04% | +19,339 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 19,321 | $1.24M | 0.01% | +1,865+10.7% | Added |
| 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 |
| GTS Securities LLC | 19,061 | $1.22M | 0.04% | +19,061 | New |
| Jackson Creek Investment Advisors LLC | 18,703 | $1.20M | 0.48% | −6,610−26.1% | Reduced |
| Handelsbanken Fonder AB | 18,597 | $1.19M | 0.01% | 00.0% | Unchanged |
| Everence Capital Management Inc | 18,385 | $1.18M | 0.10% | 00.0% | Unchanged |
| Virtus Investment Advisers, Inc. | 18,125 | $1.16M | 0.79% | −22,601−55.5% | Reduced |
| National Asset Management, Inc. | 17,577 | $1.13M | 0.03% | +2,094+13.5% | Added |
| Janney Montgomery Scott LLC | 17,396 | $1.12M | 0.00% | +6,654+61.9% | Added |
| ProShare Advisors LLC | 17,035 | $1.09M | 0.00% | +1,520+9.8% | Added |
| Wolverine Trading, LLC | 17,046 | $1.08M | 0.01% | −2,688−13.6% | Reduced |
| Petra Financial Advisors Inc | 16,724 | $1.07M | 0.96% | +16,724 | New |
| TrimTabs Asset Management, LLC | 16,235 | $1.04M | 0.53% | −106−0.6% | Reduced |
| Navellier & Associates Inc | 16,226 | $1.04M | 0.20% | +5,029+44.9% | Added |
| US Bancorp | 16,199 | $1.04M | 0.00% | +11,935+279.9% | Added |
| Virtue Capital Management, LLC | 16,383 | $1.03M | 0.17% | −1,149−6.6% | Reduced |
| Simplex Trading, LLC | 15,831 | $1.01M | 0.04% | +11,240+244.8% | Added |
| Bank of Montreal | 15,737 | $1.01M | 0.00% | −4,750−23.2% | Reduced |