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; 621 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, Q1 2024
Institutional positions in Rambus Inc as of Mar 31, 2024. 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
- 375
- −21 vs. Q4 2023
- Shares held
- 97.3M
- +747.6K (+0.8%) vs. Q4 2023
- Total value
- $6.00B
- −$592.3M (−9.0%) vs. Q4 2023
- New holders
- 51
- 153 more added
- Sold out
- 72
- 135 more reduced
4 institutions that held it in Q4 2023 haven't filed for Q1 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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 | 621 | $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, Q1 2024
Shares, value and share of portfolio for each institution holding Rambus Inc; share changes are against Q4 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Stifel Financial Corp | 82,149 | $5.08M | 0.01% | −1,907−2.3% | Reduced |
| Man Group plc | 80,712 | $4.99M | 0.01% | +17,665+28.0% | Added |
| Thornburg Investment Management Inc | 80,273 | $4.96M | 0.07% | −1,978−2.4% | Reduced |
| D. E. Shaw & Co., Inc. | 76,525 | $4.73M | 0.01% | −20,906−21.5% | Reduced |
| Investors Towarzystwo Funduszy Inwestycyjnych Spolka Akcyjna | 79,589 | $4.72M | 1.86% | −1,111−1.4% | Reduced |
| New York State Teachers Retirement System | 75,281 | $4.65M | 0.01% | +2,411+3.3% | Added |
| Jackson Square Partners, LLC | 69,475 | $4.29M | 0.18% | −9,131−11.6% | Reduced |
| Comerica Bank | 69,395 | $4.29M | 0.02% | +23,526+51.3% | Added |
| Jane Street Group, LLC | 65,932 | $4.08M | 0.01% | −215,079−76.5% | Reduced |
| Vident Advisory, LLC | 65,673 | $4.06M | 0.08% | +5,991+10.0% | Added |
| Hillsdale Investment Management Inc. | 64,700 | $4.00M | 0.32% | +64,620+80,775.0% | Added |
| Pinebridge Investments, L.P. | 64,429 | $3.98M | 0.03% | +64,429 | New |
| State of New Jersey Common Pension Fund D | 62,389 | $3.86M | 0.01% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 61,712 | $3.81M | 0.01% | +423+0.7% | Added |
| Teachers Retirement System of the State of Kentucky | 60,147 | $3.72M | 0.03% | −2,481−4.0% | Reduced |
| Assenagon Asset Management S.A. | 59,297 | $3.67M | 0.01% | −88,501−59.9% | Reduced |
| Two Sigma Advisers, LP | 58,900 | $3.64M | 0.01% | +9,000+18.0% | Added |
| Apis Capital Advisors, LLC | 58,000 | $3.58M | 2.72% | +58,000 | New |
| Prudential Financial Inc | 56,652 | $3.50M | 0.00% | +24,275+75.0% | Added |
| Amalgamated Bank | 56,362 | $3.48M | 0.03% | −12,036−17.6% | Reduced |
| Moody Aldrich Partners LLC | 53,849 | $3.33M | 0.57% | +5,034+10.3% | Added |
| Catalyst Funds Management Pty Ltd | 53,800 | $3.33M | 0.93% | +53,800 | New |
| Rice Hall James & Associates, LLC | 53,655 | $3.32M | 0.19% | −11,811−18.0% | Reduced |
| 1492 Capital Management LLC | 52,112 | $3.22M | 1.79% | +52,112 | New |
| Janus Henderson Group PLC | 50,960 | $3.15M | 0.00% | +10.0% | Added |
| Castleark Management LLC | 50,710 | $3.13M | 0.13% | −59,830−54.1% | Reduced |
| Allianz Asset Management GmbH | 50,412 | $3.12M | 0.01% | +50,412 | New |
| B. Metzler seel. Sohn & Co. AG | 50,210 | $3.10M | 0.03% | +18,203+56.9% | Added |
| Yousif Capital Management, LLC | 48,811 | $3.02M | 0.03% | −2,459−4.8% | Reduced |
| Knights of Columbus Asset Advisors LLC | 47,914 | $2.96M | 0.21% | −45,583−48.8% | Reduced |
| State of Tennessee, Treasury Department | 47,156 | $2.91M | 0.01% | −11,780−20.0% | Reduced |
| Van Eck Associates Corp | 43,856 | $2.71M | 0.00% | +11,730+36.5% | Added |
| Envestnet Asset Management Inc | 40,761 | $2.52M | 0.00% | +43+0.1% | Added |
| Danske Bank A/S | 40,562 | $2.51M | 0.01% | +40,562 | New |
| Jennison Associates LLC | 40,454 | $2.50M | 0.00% | +6,123+17.8% | Added |
| ProShare Advisors LLC | 37,659 | $2.33M | 0.01% | +4,692+14.2% | Added |
| Duality Advisers, LP | 37,548 | $2.32M | 0.23% | +4,321+13.0% | Added |
| Ensign Peak Advisors, Inc | 37,476 | $2.32M | 0.00% | −1,891−4.8% | Reduced |
| Cambiar Investors LLC | 37,444 | $2.31M | 0.09% | −997−2.6% | Reduced |
| Algert Global LLC | 37,260 | $2.30M | 0.09% | +37,260 | New |
| Ameritas Investment Partners, Inc. | 34,489 | $2.13M | 0.07% | −294−0.8% | Reduced |
| Chartwell Investment Partners, LLC | 34,249 | $2.12M | 0.07% | +820+2.5% | Added |
| Raymond James & Associates | 33,675 | $2.08M | 0.00% | +1,538+4.8% | Added |
| Centiva Capital, LP | 33,404 | $2.06M | 0.12% | +4,187+14.3% | Added |
| Louisiana State Employees Retirement System | 30,900 | $1.91M | 0.04% | +200+0.7% | Added |
| Pacer Advisors, Inc. | 29,702 | $1.84M | 0.00% | +13,542+83.8% | Added |
| Arizona State Retirement System | 29,546 | $1.83M | 0.01% | −962−3.2% | Reduced |
| Bailard, Inc. | 29,428 | $1.82M | 0.05% | +11,643+65.5% | Added |
| State Board of Administration of Florida Retirement System | 35,143 | $1.80M | 0.00% | +3,950+12.7% | Added |
| Bank of Montreal | 28,030 | $1.76M | 0.00% | −77,481−73.4% | Reduced |
| Pathstone Holdings, LLC | 27,029 | $1.67M | 0.01% | +9,473+54.0% | Added |
| Thrivent Financial for Lutherans | 26,942 | $1.67M | 0.00% | +85+0.3% | Added |
| Creative Planning | 26,667 | $1.65M | 0.00% | −140−0.5% | Reduced |
| Oregon Public Employees Retirement Fund | 26,600 | $1.64M | 0.03% | −3,800−12.5% | Reduced |
| State of Michigan Retirement System | 26,400 | $1.63M | 0.01% | +600+2.3% | Added |
| STRS Ohio | 26,400 | $1.63M | 0.01% | −2,700−9.3% | Reduced |
| LMR Partners LLP | 26,318 | $1.63M | 0.04% | +19,118+265.5% | Added |
| Toroso Investments, LLC | 25,082 | $1.55M | 0.03% | +14,475+136.5% | Added |
| JB Capital LLC | 24,909 | $1.54M | 0.10% | +869+3.6% | Added |
| Northwestern Mutual Investment Management Company, LLC | 23,979 | $1.48M | 0.04% | +61+0.3% | Added |
| GTS Securities LLC | 23,809 | $1.47M | 0.04% | +3,383+16.6% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 23,782 | $1.47M | 0.01% | +59+0.2% | Added |
| Cetera Investment Advisers | 23,722 | $1.47M | 0.00% | +23,722 | New |
| Teacher Retirement System of Texas | 23,269 | $1.44M | 0.01% | −4,088−14.9% | Reduced |
| Diversified Trust Co | 23,199 | $1.43M | 0.04% | +1,650+7.7% | Added |
| Dynamic Technology Lab Private Ltd | 23,103 | $1.43M | 0.15% | +2,080+9.9% | Added |
| Advisor Group Holdings, Inc. | 22,977 | $1.42M | 0.00% | −7,040−23.5% | Reduced |
| Campbell Newman Asset Management Inc | 22,963 | $1.42M | 0.12% | +22,963 | New |
| Handelsbanken Fonder AB | 22,797 | $1.41M | 0.01% | 00.0% | Unchanged |
| Janney Montgomery Scott LLC | 22,785 | $1.41M | 0.00% | +511+2.3% | Added |
| Linden Thomas Advisory Services, LLC | 22,656 | $1.40M | 0.22% | +47+0.2% | Added |
| New Mexico Educational Retirement Board | 22,100 | $1.37M | 0.05% | 00.0% | Unchanged |
| Leonteq Securities AG | 21,713 | $1.34M | 0.18% | +19,086+726.5% | Added |
| Los Angeles Capital Management LLC | 21,702 | $1.34M | 0.00% | −7,133−24.7% | Reduced |
| Magnetar Financial LLC | 20,855 | $1.29M | 0.03% | +20,855 | New |
| Marshall Wace, LLP | 20,024 | $1.24M | 0.00% | +20,024 | New |
| MYDA Advisors LLC | 20,000 | $1.24M | 0.43% | +20,000 | New |
| Lombard Odier Asset Management (Switzerland) SA | 19,786 | $1.22M | 0.09% | +19,786 | New |
| Yorktown Management & Research Co Inc | 19,500 | $1.21M | 1.15% | −5,100−20.7% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 19,341 | $1.20M | 0.00% | −1,903−9.0% | Reduced |
| Keystone Investors Pte Ltd | 19,022 | $1.18M | 0.10% | +15,806+491.5% | Added |
| Harvest Investment Services, LLC | 18,902 | $1.17M | 0.47% | +11,600+158.9% | Added |
| QRG Capital Management, Inc. | 18,218 | $1.13M | 0.01% | +131+0.7% | Added |
| ExodusPoint Capital Management, LP | 16,921 | $1.05M | 0.01% | +16,921 | New |
| ClariVest Asset Management LLC | 16,701 | $1.03M | 0.11% | +18+0.1% | Added |
| Two Sigma Investments, LP | 15,833 | $978.6K | 0.00% | −8,067−33.8% | Reduced |
| Whalen Wealth Management Inc. | 15,632 | $966.2K | 0.72% | +15,632 | New |
| JustInvest LLC | 15,554 | $961.4K | 0.02% | +2,095+15.6% | Added |
| Xponance, Inc. | 15,450 | $955.0K | 0.01% | −209−1.3% | Reduced |
| Engineers Gate Manager LP | 15,288 | $945.0K | 0.02% | −42,017−73.3% | Reduced |
| BNP Paribas | 15,124 | $943.0K | 0.04% | +15,124 | New |
| Walleye Trading LLC | 14,982 | $926.0K | 0.02% | −36,715−71.0% | Reduced |
| Schroder Investment Management Group | 14,823 | $916.2K | 0.00% | −178,998−92.4% | Reduced |
| BNC Wealth Management, LLC | 14,346 | $886.7K | 0.38% | 00.0% | Unchanged |
| Commonwealth Equity Services, LLC | 14,129 | $873.0K | 0.00% | +7,676+119.0% | Added |
| Truvestments Capital LLC | 14,105 | $871.8K | 0.34% | +5,481+63.6% | Added |
| Pictet Asset Management Holding SA | 13,964 | $863.3K | 0.00% | +1,786+14.7% | Added |
| Cerity Partners LLC | 13,706 | $847.2K | 0.00% | +10,525+330.9% | Added |
| SG Americas Securities, LLC | 13,357 | $826.0K | 0.00% | +9,200+221.3% | Added |
| Chesapeake Capital Corp | 13,278 | $820.7K | 0.61% | −4,113−23.7% | Reduced |