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, 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 | 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, 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 |
|---|---|---|---|---|---|
| Cutler Group LP | 2,306 | $67.0K | 0.00% | +1,626+239.1% | Added |
| NEXT Financial Group, Inc | 2,222 | $65.0K | 0.00% | +2,222 | New |
| Macquarie Group Ltd | 2,114 | $62.0K | 0.00% | −911−30.1% | Reduced |
| Neo Ivy Capital Management | 1,853 | $54.0K | 0.08% | +1,853 | New |
| Fieldpoint Private Securities, LLC | 1,750 | $51.0K | 0.01% | +40+2.3% | Added |
| Vestcor Inc | 1,698 | $50.0K | 0.00% | −191−10.1% | Reduced |
| Signet Financial Management, LLC | 1,652 | $49.0K | 0.01% | +1,652 | New |
| Versant Capital Management, Inc | 1,642 | $48.0K | 0.02% | 00.0% | Unchanged |
| Catalyst Capital Advisors LLC | 1,575 | $46.0K | 0.00% | +1,575 | New |
| Confluence Wealth Services, Inc. | 1,400 | $41.0K | 0.01% | +1,400 | New |
| Newbridge Financial Services Group, Inc. | 1,300 | $38.0K | 0.02% | 00.0% | Unchanged |
| Benjamin F. Edwards & Company, Inc. | 1,195 | $35.0K | 0.00% | +195+19.5% | Added |
| Koshinski Asset Management, Inc. | 1,140 | $33.5K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 1,013 | $30.0K | 0.00% | −7,173−87.6% | Reduced |
| Clearstead Advisors, LLC | 1,015 | $30.0K | 0.00% | 00.0% | Unchanged |
| Dark Forest Capital Management LP | 892 | $26.0K | 0.01% | −334−27.2% | Reduced |
| Rockefeller Capital Management L.P. | 777 | $22.0K | 0.00% | −214−21.6% | Reduced |
| Proequities, Inc. | 690 | $20.0K | 0.00% | 00.0% | Unchanged |
| Baillie Gifford & Co | 630 | $19.0K | 0.00% | −69−9.9% | Reduced |
| Maryland Capital Advisors Inc. | 575 | $17.0K | 0.01% | +575 | New |
| EverSource Wealth Advisors, LLC | 524 | $15.0K | 0.00% | +524 | New |
| Sageworth Trust Co of South Dakota | 470 | $14.0K | 0.02% | +470 | New |
| Parkside Financial Bank & Trust | 437 | $13.0K | 0.00% | −6−1.4% | Reduced |
| Optiver Holding B.V. | 458 | $13.0K | 0.00% | +458 | New |
| Riggs Asset Managment Co. Inc. | 400 | $12.0K | 0.00% | 00.0% | Unchanged |
| Centerpoint Advisors, LLC | 400 | $12.0K | 0.01% | 00.0% | Unchanged |
| Archer Investment Corp | 368 | $10.8K | 0.00% | 00.0% | Unchanged |
| Wolverine Asset Management LLC | 363 | $10.0K | 0.00% | −4,800−93.0% | Reduced |
| CWM, LLC | 350 | $10.0K | 0.00% | +350 | New |
| Tradewinds Capital Management, LLC | 296 | $9.00K | 0.00% | 00.0% | Unchanged |
| Tradition Wealth Management, LLC | 300 | $9.00K | 0.00% | 00.0% | Unchanged |
| Patriot Financial Group Insurance Agency, LLC | 294 | $9.00K | 0.00% | +262+818.8% | Added |
| Total Clarity Wealth Management, Inc. | 238 | $7.00K | 0.00% | 00.0% | Unchanged |
| TCI Wealth Advisors, Inc. | 190 | $6.00K | 0.00% | 00.0% | Unchanged |
| Fifth Third Bancorp | 188 | $6.00K | 0.00% | +70+59.3% | Added |
| Signaturefd, LLC | 163 | $5.00K | 0.00% | 00.0% | Unchanged |
| FMR LLC | 154 | $5.00K | 0.00% | 00.0% | Unchanged |
| Retirement Group, LLC | 155 | $5.00K | 0.00% | 00.0% | Unchanged |
| Lindbrook Capital, LLC | 156 | $5.00K | 0.00% | 00.0% | Unchanged |
| Sageworth Trust Co | 143 | $4.00K | 0.00% | −477−76.9% | Reduced |
| Parallax Volatility Advisers, L.P. | 132 | $4.00K | 0.00% | 00.0% | Unchanged |
| Tarbox Family Office, Inc. | 142 | $4.00K | 0.00% | 00.0% | Unchanged |
| Private Capital Group, LLC | 148 | $4.00K | 0.00% | +148 | New |
| West Paces Advisors Inc. | 113 | $3.32K | 0.00% | +11+10.8% | Added |
| Massmutual Trust Co FSB | 89 | $3.00K | 0.00% | −177−66.5% | Reduced |
| Allworth Financial LP | 107 | $3.00K | 0.00% | −100−48.3% | Reduced |
| ClariVest Asset Management LLC | 59 | $2.00K | 0.00% | 00.0% | Unchanged |
| Trustcore Financial Services, LLC | 52 | $2.00K | 0.00% | 00.0% | Unchanged |
| Valley National Advisers Inc | 50 | $1.00K | 0.00% | 00.0% | Unchanged |
| Cordasco Financial Network | 35 | $1.00K | 0.00% | 00.0% | Unchanged |
| Ellevest, Inc. | 26 | $1.00K | 0.00% | +2+8.3% | Added |
| Assetmark, Inc | 30 | $1.00K | 0.00% | +30 | New |
| JFS Wealth Advisors, LLC | 24 | $1.00K | 0.00% | +24 | New |
| Schubert & Co | 21 | $1.00K | 0.00% | +21 | New |
| Covestor Ltd | 22 | $1.00K | 0.00% | +22 | New |
| Huntington National Bank | 1 | $0 | 0.00% | 00.0% | Unchanged |
| Glassman Wealth Services | 8 | $0 | 0.00% | 00.0% | Unchanged |
| Toronto Dominion Bank | 12 | $0 | 0.00% | +12 | New |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −100,424−100.0% | Sold out |
| Skandinaviska Enskilda Banken AB (publ) | 0 | $0 | 0.00% | −87,500−100.0% | Sold out |
| Canada Pension Plan Investment Board | 0 | $0 | 0.00% | −66,000−100.0% | Sold out |
| Richard Bernstein Advisors LLC | 0 | $0 | 0.00% | −61,899−100.0% | Sold out |
| Arrowstreet Capital, Limited Partnership | 0 | $0 | 0.00% | −61,600−100.0% | Sold out |
| Connor, Clark & Lunn Investment Management Ltd. | 0 | $0 | 0.00% | −52,388−100.0% | Sold out |
| Shelter Haven Capital Management, L.P. | 0 | $0 | 0.00% | −50,000−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −40,805−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −32,482−100.0% | Sold out |
| Ergoteles LLC | 0 | $0 | 0.00% | −31,500−100.0% | Sold out |
| Boothbay Fund Management, LLC | 0 | $0 | 0.00% | −31,297−100.0% | Sold out |
| AMP Capital Investors Ltd | 0 | $0 | 0.00% | −20,800−100.0% | Sold out |
| Jaffetilchin Investment Partners, LLC | 0 | $0 | 0.00% | −20,443−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −19,700−100.0% | Sold out |
| Quantinno Capital Management LP | 0 | $0 | 0.00% | −19,148−100.0% | Sold out |
| HSBC Holdings PLC | 0 | $0 | 0.00% | −14,376−100.0% | Sold out |
| Royce & Associates LP | 0 | $0 | 0.00% | −13,988−100.0% | Sold out |
| Sawtooth Solutions, LLC | 0 | $0 | 0.00% | −13,972−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −12,281−100.0% | Sold out |
| Trexquant Investment LP | 0 | $0 | 0.00% | −10,807−100.0% | Sold out |
| CIBC Asset Management Inc | 0 | $0 | 0.00% | −10,086−100.0% | Sold out |
| Sciencast Management LP | 0 | $0 | 0.00% | −9,649−100.0% | Sold out |
| Harbour Investments, Inc. | 0 | $0 | 0.00% | −8,156−100.0% | Sold out |
| Arkadios Wealth Advisors | 0 | $0 | 0.00% | −2,000−100.0% | Sold out |
| Lountzis Asset Management, LLC | 0 | $0 | 0.00% | −450−100.0% | Sold out |
| Meeder Asset Management Inc | 0 | $0 | 0.00% | −246−100.0% | Sold out |
| O'Shaughnessy Asset Management, LLC | 0 | $0 | 0.00% | −159−100.0% | Sold out |
| RPG Investment Advisory, LLC | 0 | $0 | 0.00% | −150−100.0% | Sold out |
| Manchester Capital Management LLC | 0 | $0 | 0.00% | −81−100.0% | Sold out |
| Alexandria Capital, LLC | – | – | – | – | Not filed |
| Marshall Wace North America L.P. | – | – | – | – | Not filed |
| Sonora Investment Management, LLC | – | – | – | – | Not filed |
| Wealth Quarterback LLC | – | – | – | – | Not filed |