Who Owns Rambus Inc
Every manager with more than $100m in listed equities files a 13F each quarter naming what they hold. These are the ones reporting a position in Rambus Inc.
Who crossed 5% of RMBS →Positions as of 2026-09-30
Largest first. The move is against the previous quarter that manager filed, not the previous calendar quarter.
| Manager | Value |
|---|---|
| CONGRESS ASSET MANAGEMENT COCOM357K shtrimmed | $38.1M |
| M.E. ALLISON & CO., INC.COM5.9K shheld | $629.6K |
| ROCKLAND TRUST COCOM5K shheld | $533.4K |
| Farther Finance Advisors, LLCStock5K shtrimmed | $528.9K |
| Oak Grove Capital LLCCOM4.8K shtrimmed | $512.4K |
| GAMMA Investing LLCCommon Stock4.5K shadded | $481.8K |
| Balefire, LLCCOM2.4K shtrimmed | $258.4K |
| Everhart Financial Group, Inc.COM2.2K shtrimmed | $230.1K |
| MOODY NATIONAL BANK TRUST DIVISIONCOM1.9K shtrimmed | $208K |
| GK Wealth Management LLCCOM1.1K sh— | $119.3K |
| MassMutual Private Wealth & Trust, FSBCommon / Ordinary Stock316 shtrimmed | $33.7K |
| CoreCap Advisors, LLCStock159 shtrimmed | $17K |
| TOTH FINANCIAL ADVISORY CORPCOM50 shadded | $5.3K |
| MJT & Associates Financial Advisory Group, Inc.Stock46 shtrimmed | $4.9K |
| ELEVATION WEALTH PARTNERS, LLCCOM28 sh— | $3K |
| ARMSTRONG ADVISORY GROUP, INCCOM19 shheld | $2K |
| Trust CoStock8 shheld | $854 |
| Wealth Enhancement Trust Services, Inc.COM2 sh— | $214 |
Source: quarterly 13F filings, via EDGAR. A 13F reports positions by CUSIP alone; each CUSIP here has been confirmed against OpenFIGI rather than matched by name, because a name match would attribute one company's shareholders to another. Positions are as of quarter end and can be months old by the time they are filed, and 13F covers long equity positions only — not shorts, and not most debt. The summed value is what these filers reported, not the company's institutional ownership.
More on RMBS
Follow Rambus Inc (RMBS) by email
New trades in Rambus Inc (RMBS) by members of Congress, insiders and funds, with the rest of the week's filings. One email a week, free.
Unsubscribe with one click from any email.