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 2023
Institutional positions in Rambus Inc as of Mar 31, 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
- 337
- +36 vs. Q4 2022
- Shares held
- 93.7M
- +2.10M (+2.3%) vs. Q4 2022
- Total value
- $4.81B
- +$1.55B (+47.4%) vs. Q4 2022
- New holders
- 71
- 91 more added
- Sold out
- 35
- 136 more reduced
2 institutions that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2022: 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 2023
Shares, value and share of portfolio for each institution holding Rambus Inc; share changes are against Q4 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Empowered Funds, LLC | 63,409 | $3.25M | 0.19% | +63,409 | New |
| Yousif Capital Management, LLC | 62,936 | $3.23M | 0.04% | −8,020−11.3% | Reduced |
| New York State Teachers Retirement System | 62,313 | $3.19M | 0.01% | −1,942−3.0% | Reduced |
| Twin Tree Management, LP | 62,034 | $3.18M | 0.09% | +62,034 | New |
| Susquehanna International Group, LLP | 61,678 | $3.16M | 0.00% | −28,539−31.6% | Reduced |
| Jane Street Group, LLC | 61,676 | $3.16M | 0.01% | −31,610−33.9% | Reduced |
| Teachers Retirement System of the State of Kentucky | 61,351 | $3.14M | 0.03% | +27,042+78.8% | Added |
| American International Group, Inc. | 58,394 | $2.99M | 0.02% | +255+0.4% | Added |
| Tudor Investment Corp Et Al | 58,387 | $2.99M | 0.06% | +58,387 | New |
| MetLife Investment Management | 56,019 | $2.87M | 0.02% | 00.0% | Unchanged |
| Price T Rowe Associates Inc | 55,752 | $2.86M | 0.00% | +1,660+3.1% | Added |
| State of New Jersey Common Pension Fund D | 55,729 | $2.86M | 0.01% | −5,975−9.7% | Reduced |
| Squarepoint Ops LLC | 54,751 | $2.81M | 0.02% | +13,836+33.8% | Added |
| Cambiar Investors LLC | 54,469 | $2.79M | 0.12% | −18,584−25.4% | Reduced |
| Concentric Capital Strategies, LP | 52,372 | $2.68M | 0.90% | +52,372 | New |
| Emerald Advisers, LLC | 51,463 | $2.64M | 0.13% | +51,463 | New |
| Louisiana State Employees Retirement System | 50,100 | $2.57M | 0.06% | −900−1.8% | Reduced |
| Vident Investment Advisory, LLC | 49,676 | $2.55M | 0.08% | +49,676 | New |
| Janus Henderson Group PLC | 48,692 | $2.50M | 0.00% | +26,480+119.2% | Added |
| Amalgamated Bank | 48,508 | $2.49M | 0.02% | −3,337−6.4% | Reduced |
| Jump Financial, LLC | 44,784 | $2.30M | 0.09% | +44,784 | New |
| Manufacturers Life Insurance Company, The | 43,629 | $2.24M | 0.00% | +660+1.5% | Added |
| Envestnet Asset Management Inc | 164,950 | $2.22M | 0.00% | +117,742+249.4% | Added |
| Maryland State Retirement & Pension System | 43,284 | $2.22M | 0.05% | −960−2.2% | Reduced |
| Value Aligned Research Advisors, LLC | 42,790 | $2.19M | 0.78% | 00.0% | Unchanged |
| HRT Financial LP | 42,737 | $2.19M | 0.03% | −17,389−28.9% | Reduced |
| Prudential Financial Inc | 105,673 | $2.18M | 0.00% | −3,233−3.0% | Reduced |
| Royal Bank of Canada | 42,104 | $2.16M | 0.00% | −50,241−54.4% | Reduced |
| AE Wealth Management LLC | 41,769 | $2.14M | 0.01% | −4,981−10.7% | Reduced |
| Boston Partners | 41,763 | $2.14M | 0.00% | −56,626−57.6% | Reduced |
| Virtus Investment Advisers, Inc. | 40,726 | $2.09M | 1.46% | −2,405−5.6% | Reduced |
| Allspring Global Investments Holdings, LLC | 40,069 | $2.05M | 0.00% | +24,770+161.9% | Added |
| Teacher Retirement System of Texas | 39,638 | $2.03M | 0.01% | −3,918−9.0% | Reduced |
| EAM Investors, LLC | 39,177 | $2.01M | 0.39% | −11,754−23.1% | Reduced |
| China Universal Asset Management Co., Ltd. | 39,000 | $2.00M | 0.68% | −54,000−58.1% | Reduced |
| AQR Capital Management LLC | 36,435 | $1.87M | 0.00% | −5,912−14.0% | Reduced |
| Emerald Mutual Fund Advisers Trust | 36,386 | $1.87M | 0.11% | +36,386 | New |
| Caption Management, LLC | 35,744 | $1.83M | 0.39% | +35,744 | New |
| Victory Capital Management Inc | 35,664 | $1.83M | 0.00% | −39,624−52.6% | Reduced |
| Centiva Capital, LP | 35,496 | $1.82M | 0.10% | +11,988+51.0% | Added |
| State Board of Administration of Florida Retirement System | 35,143 | $1.80M | 0.00% | 00.0% | Unchanged |
| Oregon Public Employees Retirement Fund | 34,689 | $1.78M | 0.02% | −1,091−3.0% | Reduced |
| Mackenzie Financial Corp | 34,486 | $1.77M | 0.00% | +13,407+63.6% | Added |
| Guggenheim Capital LLC | 34,481 | $1.77M | 0.01% | +6,030+21.2% | Added |
| STRS Ohio | 33,200 | $1.70M | 0.01% | −2,400−6.7% | Reduced |
| Ensign Peak Advisors, Inc | 32,917 | $1.69M | 0.00% | +4,850+17.3% | Added |
| Penserra Capital Management LLC | 32,863 | $1.68M | 0.03% | +32,863 | New |
| Syntal Capital Partners, LLC | 32,405 | $1.66M | 0.61% | +32,405 | New |
| Group One Trading, L.P. | 31,709 | $1.63M | 0.08% | +24,733+354.5% | Added |
| Yorktown Management & Research Co Inc | 31,500 | $1.61M | 1.74% | 00.0% | Unchanged |
| ClariVest Asset Management LLC | 31,264 | $1.60M | 0.07% | +84+0.3% | Added |
| Arizona State Retirement System | 31,144 | $1.60M | 0.01% | −44−0.1% | Reduced |
| Graham Capital Management, L.P. | 28,030 | $1.44M | 0.05% | −22,405−44.4% | Reduced |
| Gotham Asset Management, LLC | 27,957 | $1.43M | 0.03% | −43,530−60.9% | Reduced |
| Truist Financial Corp | 27,492 | $1.41M | 0.00% | +54+0.2% | Added |
| American Century Companies Inc | 27,884 | $1.41M | 0.00% | +4,623+19.9% | Added |
| Advisors Asset Management, Inc. | 25,560 | $1.31M | 0.03% | −26−0.1% | Reduced |
| Jackson Creek Investment Advisors LLC | 25,313 | $1.30M | 0.54% | −60.0% | Reduced |
| Creative Planning | 23,947 | $1.23M | 0.00% | −1,095−4.4% | Reduced |
| Raymond James & Associates | 23,017 | $1.18M | 0.00% | +23,017 | New |
| ETF Managers Group, LLC | 22,634 | $1.16M | 0.04% | +337+1.5% | Added |
| Capital Fund Management S.A. | 22,365 | $1.15M | 0.02% | −46,768−67.6% | Reduced |
| Ergoteles LLC | 22,148 | $1.14M | 0.04% | +22,148 | New |
| Mutual of America Capital Management LLC | 22,134 | $1.13M | 0.01% | −391−1.7% | Reduced |
| Jennison Associates LLC | 21,204 | $1.09M | 0.00% | +21,204 | New |
| JB Capital LLC | 20,898 | $1.07M | 0.10% | +589+2.9% | Added |
| Bank of Montreal | 20,487 | $1.05M | 0.00% | +2,351+13.0% | Added |
| Diversified Trust Co | 20,190 | $1.03M | 0.04% | +781+4.0% | Added |
| First Hawaiian Bank | 19,720 | $1.01M | 0.03% | −5,919−23.1% | Reduced |
| Wolverine Trading, LLC | 19,734 | $997.0K | 0.03% | +19,734 | New |
| TD Asset Management Inc | 18,900 | $968.8K | 0.00% | −24,900−56.8% | Reduced |
| Handelsbanken Fonder AB | 18,597 | $953.0K | 0.01% | 00.0% | Unchanged |
| Everence Capital Management Inc | 18,385 | $942.0K | 0.08% | 00.0% | Unchanged |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 17,456 | $894.8K | 0.00% | +1,182+7.3% | Added |
| Two Sigma Investments, LP | 16,700 | $856.0K | 0.00% | −72,888−81.4% | Reduced |
| TrimTabs Asset Management, LLC | 16,341 | $837.6K | 0.45% | +2,120+14.9% | Added |
| ARGA Investment Management, LP | 16,158 | $828.3K | 0.03% | −5,522−25.5% | Reduced |
| Prudential PLC | 15,758 | $807.8K | 0.01% | +15,758 | New |
| Virtue Capital Management, LLC | 17,532 | $805.6K | 0.13% | −745−4.1% | Reduced |
| Robeco Institutional Asset Management B.V. | 15,685 | $804.0K | 0.00% | −9,423−37.5% | Reduced |
| Public Employees Retirement Association of Colorado | 15,619 | $801.0K | 0.00% | 00.0% | Unchanged |
| ProShare Advisors LLC | 15,515 | $795.3K | 0.00% | −1,373−8.1% | Reduced |
| National Asset Management, Inc. | 15,483 | $793.7K | 0.02% | +15,483 | New |
| Duality Advisers, LP | 14,719 | $754.5K | 0.09% | −26,713−64.5% | Reduced |
| Pictet Asset Management SA | 14,707 | $753.9K | 0.00% | +1,269+9.4% | Added |
| Hanseatic Management Services Inc | 14,699 | $753.0K | 1.69% | +476+3.3% | Added |
| Cipher Capital LP | 14,412 | $738.8K | 0.14% | −24,366−62.8% | Reduced |
| Juncture Wealth Strategies, LLC | 14,392 | $737.7K | 0.36% | −10,114−41.3% | Reduced |
| ExodusPoint Capital Management, LP | 14,322 | $734.0K | 0.01% | +8,387+141.3% | Added |
| BNC Wealth Management, LLC | 14,268 | $731.4K | 0.41% | −2,500−14.9% | Reduced |
| Amundi | 14,727 | $723.4K | 0.00% | +14,727 | New |
| Moors & Cabot, Inc. | 13,520 | $693.0K | 0.05% | −430−3.1% | Reduced |
| Fox Run Management, L.L.C. | 12,546 | $643.1K | 0.21% | +12,546 | New |
| Campbell & CO Investment Adviser LLC | 12,040 | $617.2K | 0.11% | −2,345−16.3% | Reduced |
| National Bank of Canada | 11,985 | $614.5K | 0.00% | +11,985 | New |
| Engineers Gate Manager LP | 11,584 | $593.8K | 0.02% | −32,207−73.5% | Reduced |
| Navellier & Associates Inc | 11,197 | $574.0K | 0.12% | +618+5.8% | Added |
| Advisor Partners II, LLC | 11,028 | $565.3K | 0.03% | +274+2.5% | Added |
| Balyasny Asset Management LLC | 10,955 | $561.6K | 0.00% | −17,340−61.3% | Reduced |
| Janney Montgomery Scott LLC | 10,742 | $551.0K | 0.00% | +2,137+24.8% | Added |