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, Q3 2023
Institutional positions in Rambus Inc as of Sep 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
- 350
- −41 vs. Q2 2023
- Shares held
- 98.0M
- +2.29M (+2.4%) vs. Q2 2023
- Total value
- $5.48B
- −$656.3M (−10.7%) vs. Q2 2023
- New holders
- 40
- 153 more added
- Sold out
- 81
- 115 more reduced
2 institutions that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2023
Shares, value and share of portfolio for each institution holding Rambus Inc; share changes are against Q2 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Cetera Investment Advisers | 0 | $0 | 0.00% | −3,514−100.0% | Sold out |
| Level Four Advisory Services, LLC | 0 | $0 | 0.00% | −3,477−100.0% | Sold out |
| Forum Financial Management, LP | 0 | $0 | 0.00% | −3,416−100.0% | Sold out |
| ISAM Funds (UK) Ltd | 0 | $0 | 0.00% | −3,415−100.0% | Sold out |
| CoreCap Advisors, LLC | 0 | $0 | 0.00% | −3,344−100.0% | Sold out |
| Magnetar Financial LLC | 0 | $0 | 0.00% | −3,294−100.0% | Sold out |
| Mirabella Financial Services LLP | 0 | $0 | 0.00% | −3,240−100.0% | Sold out |
| Saturna Capital CORP | 0 | $0 | 0.00% | −3,199−100.0% | Sold out |
| CIBC Asset Management Inc | 0 | $0 | 0.00% | −3,177−100.0% | Sold out |
| Harvest Fund Management Co., Ltd | 0 | $0 | 0.00% | −3,137−100.0% | Sold out |
| Hollencrest Capital Management | 0 | $0 | 0.00% | −2,373−100.0% | Sold out |
| FNY Investment Advisers, LLC | 0 | $0 | 0.00% | −825−100.0% | Sold out |
| Virtus Fund Advisers, LLC | 0 | $0 | 0.00% | −705−100.0% | Sold out |
| WealthPLAN Partners, LLC | 0 | $0 | 0.00% | −600−100.0% | Sold out |
| Federation des caisses Desjardins du Quebec | 0 | $0 | 0.00% | −500−100.0% | Sold out |
| Penserra Capital Management LLC | 0 | $0 | 0.00% | −496−100.0% | Sold out |
| Altshuler Shaham Ltd | 0 | $0 | 0.00% | −434−100.0% | Sold out |
| Credit Agricole S A | 0 | $0 | 0.00% | −347−100.0% | Sold out |
| Quarry LP | 0 | $0 | 0.00% | −205−100.0% | Sold out |
| Fairfield, Bush & Co. | 0 | $0 | 0.00% | −200−100.0% | Sold out |
| V-Square Quantitative Management LLC | 0 | $0 | 0.00% | −193−100.0% | Sold out |
| Raleigh Capital Management Inc. | 0 | $0 | 0.00% | −134−100.0% | Sold out |
| Anchor Investment Management, LLC | 0 | $0 | 0.00% | −117−100.0% | Sold out |
| Horan Securities, Inc. | 0 | $0 | 0.00% | −52−100.0% | Sold out |
| Toth Financial Advisory Corp | 0 | $0 | 0.00% | −30−100.0% | Sold out |
| CGC Financial Services, LLC | 0 | $0 | 0.00% | −25−100.0% | Sold out |
| Carolinas Wealth Consulting LLC | 0 | $0 | 0.00% | −23−100.0% | Sold out |
| Harbour Investments, Inc. | 0 | $0 | 0.00% | −23−100.0% | Sold out |
| Venturi Wealth Management, LLC | 0 | $0 | 0.00% | −22−100.0% | Sold out |
| Disciplined Investments, LLC | 0 | $0 | 0.00% | −18−100.0% | Sold out |
| Plante Moran Financial Advisors, LLC | 0 | $0 | 0.00% | −10−100.0% | Sold out |
| EA Series Trust | – | – | – | – | Not filed |
| Pictet Asset Management SA | – | – | – | – | Not filed |