Mattis Julia C — SEC Form 4 filings
SEC reporting owner CIK 2086712. 9 Form 4 filings on record with FilingPulse; latest filed 2026-09-17.
Transaction summary — filings shown
Covers all 9 filings on record, filed 2025-10-24 to 2026-09-17. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): 1 leg across 1 filing — 1,600 shares, $412,240 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 13.
- Largest priced transaction: sale of 1,600 shares @ $257.65 ($412,240) in InterDigital, Inc., filed 2026-06-04.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| InterDigital, Inc. (IDCC) | Chief Licensing Officer | 9 | — | 1 leg · 1,600 sh · $412,240 | 13 |
Form 4 filings — Mattis Julia C
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-09-17 | 4 | InterDigital, Inc. (IDCC) | Tax withholding (F): 325 @ $340.38 · Disposition to issuer (D): 0.82 @ $340.38 | EDGAR |
| 2026-07-24 | 4 | InterDigital, Inc. (IDCC) | Grant/award (A): 23.81 @ $0 | EDGAR |
| 2026-06-04 | 4 | InterDigital, Inc. (IDCC) | Sale (S): 1,600 @ $257.65 | EDGAR |
| 2026-04-24 | 4 | InterDigital, Inc. (IDCC) | Grant/award (A): 16.36 @ $0 | EDGAR |
| 2026-04-02 | 4 | InterDigital, Inc. (IDCC) | Grant/award (A): 4,140 @ $0 | EDGAR |
| 2026-03-17 | 4 | InterDigital, Inc. (IDCC) | Grant/award (A): 2,470.27 @ $0 · Tax withholding (F): 1,050 @ $362.35 · Disposition to issuer (D): 0.27 @ $362.35 · Tax withholding (F): 993 @ $362.35 · Disposition to issuer (D): 1.65 @ $362.35 | EDGAR |
| 2026-01-30 | 4 | InterDigital, Inc. (IDCC) | Grant/award (A): 15.52 @ $0 | EDGAR |
| 2026-01-07 | 4 | InterDigital, Inc. (IDCC) | Grant/award (A): 1,068 @ $0 | EDGAR |
| 2025-10-24 | 4 | InterDigital, Inc. (IDCC) | Grant/award (A): 12.08 @ $0 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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