Supply breakdown
Shares as of Oct 27, 2026| Category | Shares | % | Value | Status |
|---|---|---|---|---|
| Circulating | 25.75M | 100.0% | $7.29B | Estimated |
| Free float | - | - | - | Unavailable |
| Insider-held, unrestricted | - | - | - | Unavailable |
| Locked team funds | - | - | - | Unavailable |
| Other restricted (unlisted classes only) | - | - | - | Unavailable |
| Total outstanding | 25.75M | 100.0% | $7.29B | Verified |
| Ownership views (overlap the categories above, never added) | ||||
| Institutional holdings (13F; over 100%, double counted) | 27.25M | 105.8% | $7.72B | 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$7.29B
- Fully diluted$9.68B
- Circulating$7.29B
- 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. | 3.91M | 15.17% |
| PRICE T ROWE ASSOCIATES INC /MD/ | 2.61M | 10.15% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 1.62M | 6.30% |
| VANGUARD CAPITAL MANAGEMENT LLC | 1.16M | 4.52% |
| Boston Partners | 1.14M | 4.44% |
| STATE STREET CORP | 1.01M | 3.91% |
| GEODE CAPITAL MANAGEMENT, LLC | 920.5K | 3.57% |
| T. Rowe Price Investment Management, Inc. | 746.2K | 2.90% |
| DIMENSIONAL FUND ADVISORS LP | 668.4K | 2.60% |
| AMERIPRISE FINANCIAL INC | 565.3K | 2.20% |
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. The total is 106% of shares outstanding, so it counts some shares twice: positions reported by more than one manager, and lent shares that appear at both the lender and the buyer. Read it as an upper bound.
Insiders
Forms 3, 4 and 5Form 4 aggregation pending
Share classes
| Class | Listing | Shares outstanding | As of |
|---|---|---|---|
| Common stock | IDCC on Nasdaq | 25,753,242 | Oct 27, 2026 |
Notes and sources
- InterDigital, Inc. 10-Q for period ended 2026-09-30, Cover page (0001405495-26-000077)
- SEC public float (non-affiliates): $5.72B as of Jun 30, 2025, from the 10-K cover. It is a dollar value at a past date, not circulating supply.