Mattis Julia C 4

What Happened

• Julia C. Mattis, Chief Licensing Officer at InterDigital, received an award of 15.521 shares (recorded as acquisition) on 2026-01-28 at a reported price of $0.00. The grant is recorded as restricted stock units credited as dividend equivalents, so no cash was paid at issuance.

Key Details

• Transaction date and price: 2026-01-28; 15.521 units @ $0.00.
• Shares owned after transaction: Not disclosed in the provided filing.
• Footnote: These are restricted stock units received pursuant to dividend equivalents credited on unvested RSUs; dividend equivalents accrue when cash dividends are paid on InterDigital common stock.
• Filing timeliness: Report filed 2026-01-30 (appears timely under Form 4 reporting rules).

Context

• This transaction is an award (A) — a routine non-cash compensation event — not a market buy or sale. Dividend-equivalent RSUs reflect additional units credited based on cash dividends on existing unvested RSUs and generally do not signal a direct insider view on the stock price.