Data from public SEC 13F & STOCK Act filings, delayed up to ~45 days, partial holdings only — for research, not investment advice.
RMBS
RAMBUS INCData as of 2026 Q1 (03-31) · 13F snapshot
Summary
RAMBUS INC (RMBS) is held by 6 tracked hedge-fund managers, a combined reported value of ~$32.94M; the largest are Izzy Englander, Ray Dalio, Ken Griffin. This quarter: 4 trimmed, 1 closed. Data as of 2026 Q1, from public SEC 13F filings, delayed up to ~45 days.
Attention · MediumThis quarter · Cooling
Gurus holding6
Congress trades0
Price$146.56vs quarter-end+70.36%
Sectors0
This quarter's moves
Top holderIzzy EnglanderNew0
Added0
Trimmed / sold5
Value $4.44M— of portfolio51,6002026 Q1
Value $4.26M— of portfolio49,5002026 Q1
Value $1.32M— of portfolio14,4002025 Q4
Value $430.1K— of portfolio5,0002026 Q1
| Investor | Value | % of portfolio | Action |
|---|---|---|---|
| Ken GriffinPUT | $4.44M | — | — |
| Ken GriffinCALL | $4.26M | — | — |
| Izzy EnglanderCALL | $1.32M | — | — |
| Izzy EnglanderPUT | $430.1K | — | — |