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 2023
Institutional positions in Rambus Inc as of Dec 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
- 400
- +55 vs. Q3 2023
- Shares held
- 97.0M
- −967.1K (−1.0%) vs. Q3 2023
- Total value
- $6.62B
- +$1.14B (+20.9%) vs. Q3 2023
- New holders
- 93
- 118 more added
- Sold out
- 38
- 145 more reduced
5 institutions that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2023
Shares, value and share of portfolio for each institution holding Rambus Inc; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Whale Rock Capital Management LLC | 0 | $0 | 0.00% | −1,885,137−100.0% | Sold out |
| Maplelane Capital, LLC | 0 | $0 | 0.00% | −304,000−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −192,088−100.0% | Sold out |
| Public Sector Pension Investment Board | 0 | $0 | 0.00% | −134,884−100.0% | Sold out |
| Jupiter Asset Management Ltd | 0 | $0 | 0.00% | −124,518−100.0% | Sold out |
| Value Aligned Research Advisors, LLC | 0 | $0 | 0.00% | −62,790−100.0% | Sold out |
| Maryland State Retirement & Pension System | 0 | $0 | 0.00% | −40,196−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −31,157−100.0% | Sold out |
| Caption Management, LLC | 0 | $0 | 0.00% | −28,701−100.0% | Sold out |
| TD Asset Management Inc | 0 | $0 | 0.00% | −22,400−100.0% | Sold out |
| Wolverine Trading, LLC | 0 | $0 | 0.00% | −19,054−100.0% | Sold out |
| Petra Financial Advisors Inc | 0 | $0 | 0.00% | −16,523−100.0% | Sold out |
| Everence Capital Management Inc | 0 | $0 | 0.00% | −16,495−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −13,900−100.0% | Sold out |
| Hel Ved Capital Management Ltd | 0 | $0 | 0.00% | −12,405−100.0% | Sold out |
| Virtus Investment Advisers, Inc. | 0 | $0 | 0.00% | −12,053−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −11,990−100.0% | Sold out |
| Prudential PLC | 0 | $0 | 0.00% | −10,898−100.0% | Sold out |
| Chase Investment Counsel Corp | 0 | $0 | 0.00% | −9,525−100.0% | Sold out |
| Boston Partners | 0 | $0 | 0.00% | −9,443−100.0% | Sold out |
| Avantax Planning Partners, Inc. | 0 | $0 | 0.00% | −8,600−100.0% | Sold out |
| Pinpoint Asset Management Ltd | 0 | $0 | 0.00% | −8,000−100.0% | Sold out |
| Cutler Group LP | 0 | $0 | 0.00% | −7,810−100.0% | Sold out |
| Robeco Institutional Asset Management B.V. | 0 | $0 | 0.00% | −7,187−100.0% | Sold out |
| Caxton Associates LP | 0 | $0 | 0.00% | −6,062−100.0% | Sold out |
| Skandinaviska Enskilda Banken AB (publ) | 0 | $0 | 0.00% | −5,000−100.0% | Sold out |
| Inceptionr LLC | 0 | $0 | 0.00% | −4,614−100.0% | Sold out |
| Belpointe Asset Management LLC | 0 | $0 | 0.00% | −4,357−100.0% | Sold out |
| Miracle Mile Advisors, LLC | 0 | $0 | 0.00% | −4,261−100.0% | Sold out |
| CI Private Wealth, LLC | 0 | $0 | 0.00% | −4,009−100.0% | Sold out |
| Eqis Capital Management, Inc. | 0 | $0 | 0.00% | −3,748−100.0% | Sold out |
| Westpac Banking Corp | 0 | $0 | 0.00% | −3,100−100.0% | Sold out |
| USA Financial Portformulas Corp | 0 | $0 | 0.00% | −3,064−100.0% | Sold out |
| Park Place Capital Corp | 0 | $0 | 0.00% | −1,081−100.0% | Sold out |
| Nomura Asset Management Co Ltd | 0 | $0 | 0.00% | −1,027−100.0% | Sold out |
| Grove Bank & Trust | 0 | $0 | 0.00% | −31−100.0% | Sold out |
| SRS Capital Advisors, Inc. | 0 | $0 | 0.00% | −28−100.0% | Sold out |
| Harel Insurance Investments & Financial Services Ltd. | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Advisor Partners II, LLC | – | – | – | – | Not filed |
| Virginia Retirement Systems Et Al | – | – | – | – | Not filed |
| Pathstone Family Office, LLC | – | – | – | – | Not filed |
| First Republic Investment Management, Inc. | – | – | – | – | Not filed |
| Steward Financial Group LLC | – | – | – | – | Not filed |