Company: IDCC
Filing Date: 2025-06-18
Form Type: 11-K
Source: 0001405495-25-000034
Chunk: 18

Company: InterDigital, Inc.
Filing Date: 2025-06-18
Form: 11-K
Chunk 18
---
 |     | $                                    | — |     | $                                        |       — |     | $                                                | 123,741 |

<div align='center'>14</div>

### EXHIBIT INDEX
The following is a list of Exhibits filed as part of this Annual Report on Form 11-K:

| Exhibit |     | Exhibit                      |
| Number  |     | Description                  |
| 23.1    |     | Consent ofKreischer Miller   |
| 23.2    |     | Consent of Morison Cogen LLP |

<div align='center'>15</div>

### SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the trustees (or other persons who administer the employee benefit plan) have duly caused this annual report to be signed on its behalf by the undersigned hereunto duly authorized.

| Date: June 18, 2025 |     | INTERDIGITAL SAVINGS AND PROTECTION PLAN 
 By:                                      
 By:                                      |     | InterDigital, Inc., in its capacity as Plan Sponsor and Plan Administrator 
 /s/ Richard J. Brezski                                                     |
|:--------------------|:----|:-----------------------------------------|:----|:---------------------------------------------------------------------------|
|                     |     |                                          |     | Richard J. Brezski                                                         |
|                     |     |                                          |     | Chief Financial Officer                                                    |

<div align='center'>16</div>