Supply breakdown
Shares as of Sep 30, 2026| Category | Shares | % | Value | Status |
|---|---|---|---|---|
| Circulating | 107.10M | 100.0% | $14.22B | Estimated |
| Free float | - | - | - | Unavailable |
| Insider-held, unrestricted | - | - | - | Unavailable |
| Locked team funds | - | - | - | Unavailable |
| Other restricted (unlisted classes only) | - | - | - | Unavailable |
| Total outstanding | 107.10M | 100.0% | $14.22B | Verified |
| Ownership views (overlap the categories above, never added) | ||||
| Institutional holdings (13F) | 100.61M | 93.9% | $13.35B | Estimated |
| Insider-held, all (Forms 3, 4, 5) | - | - | - | Unavailable |
Institutional and insider holdings can include both tradable and locked shares, so they are shown for reference and never added to the total. Check: no class has more shares deducted than it has outstanding, and the review found no shares that may be counted twice: reconciles.
Valuation
- Traditional$14.22B
- Fully diluted$14.37B
- Circulating$14.22B
- Free float-
- Locked team value$0
- Other restricted value$0
Locked and restricted shares
Not reviewed yet.
Institutional holders
13F, quarter ended Jun 30, 2026| Holder | Shares | % of total |
|---|---|---|
| BlackRock, Inc. | 13.96M | 13.04% |
| FMR LLC | 10.46M | 9.77% |
| Invesco Ltd. | 6.63M | 6.19% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 6.07M | 5.67% |
| VANGUARD CAPITAL MANAGEMENT LLC | 4.87M | 4.55% |
| STATE STREET CORP | 3.92M | 3.66% |
| PRICE T ROWE ASSOCIATES INC /MD/ | 3.33M | 3.11% |
| GEODE CAPITAL MANAGEMENT, LLC | 2.30M | 2.15% |
| JPMORGAN CHASE & CO | 2.10M | 1.96% |
| DIMENSIONAL FUND ADVISORS LP | 1.72M | 1.61% |
Sum of long share positions in Form 13F reports for the quarter. 13F covers managers with over $100M in US equities; some positions are reported by more than one filer.
Insiders
Forms 3, 4 and 5Form 4 aggregation pending
Share classes
| Class | Listing | Shares outstanding | As of |
|---|---|---|---|
| Common stock | RMBS on Nasdaq | 107,095,985 | Sep 30, 2026 |
Notes and sources
- RAMBUS INC 10-Q for period ended 2026-09-30, Cover page (0001193125-26-431941)
- SEC public float (non-affiliates): $5.20B as of Jun 30, 2025, from the 10-K cover. It is a dollar value at a past date, not circulating supply.