| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| BREZSKI RICHARD | Chief Financial Officer | 200 BELLEVUE PARKWAY, SUITE 300, WILMINGTON | /s/ Amy A. Miraglia, Attorney-in-Fact for Richard J. Brezski | 12 Feb 2026 | 0001231579 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | IDCC | Common Stock | Sale | $219,275 | -620 | -0.79% | $353.67 | 77,789 | 10 Feb 2026 | Direct | F1, F2 |
| transaction | IDCC | Common Stock | Sale | $269,580 | -760 | -0.98% | $354.71 | 77,029 | 10 Feb 2026 | Direct | F1, F3 |
| transaction | IDCC | Common Stock | Sale | $232,210 | -652 | -0.85% | $356.15 | 76,377 | 10 Feb 2026 | Direct | F1, F4 |
| transaction | IDCC | Common Stock | Sale | $142,812 | -400 | -0.52% | $357.03 | 75,977 | 10 Feb 2026 | Direct | F1, F5 |
| transaction | IDCC | Common Stock | Sale | $125,272 | -350 | -0.46% | $357.92 | 75,627 | 10 Feb 2026 | Direct | F1, F6 |
| transaction | IDCC | Common Stock | Sale | $147,309 | -410 | -0.54% | $359.29 | 75,217 | 10 Feb 2026 | Direct | F1, F7 |
| transaction | IDCC | Common Stock | Sale | $129,593 | -360 | -0.48% | $359.98 | 74,857 | 10 Feb 2026 | Direct | F1, F8 |
| transaction | IDCC | Common Stock | Sale | $165,320 | -458 | -0.61% | $360.96 | 74,399 | 10 Feb 2026 | Direct | F1, F9 |
| transaction | IDCC | Common Stock | Sale | $213,521 | -590 | -0.79% | $361.90 | 73,809 | 10 Feb 2026 | Direct | F1, F10 |
| transaction | IDCC | Common Stock | Sale | $58,400 | -160 | -0.22% | $365.00 | 73,649 | 10 Feb 2026 | Direct | F1 |
| transaction | IDCC | Common Stock | Sale | $87,994 | -240 | -0.33% | $366.64 | 73,409 | 10 Feb 2026 | Direct | F1 |
| transaction | IDCC | Common Stock | Sale | $5,522 | -15 | -0.02% | $368.14 | 73,394 | 10 Feb 2026 | Direct | F1 |
| transaction | IDCC | Common Stock | Sale | $73,940 | -200 | -0.27% | $369.70 | 73,194 | 10 Feb 2026 | Direct | F1, F11 |
| transaction | IDCC | Common Stock | Sale | $14,880 | -40 | -0.05% | $371.99 | 73,154 | 10 Feb 2026 | Direct | F1 |
| transaction | IDCC | Common Stock | Sale | $59,781 | -160 | -0.22% | $373.63 | 72,994 | 10 Feb 2026 | Direct | F1, F12 |
| transaction | IDCC | Common Stock | Sale | $221,215 | -590 | -0.81% | $374.94 | 72,404 | 10 Feb 2026 | Direct | F1, F13 |
| transaction | IDCC | Common Stock | Sale | $704,480 | -2,000 | -2.8% | $352.24 | 70,404 | 11 Feb 2026 | Direct | F1 |
| holding | IDCC | Common Stock | 1,953 | 10 Feb 2026 | By 401k Plan | F14 |
Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.
Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).
| Id | Content |
|---|---|
| F1 | The transactions reported on this Form 4 were made pursuant to a Rule 10b5-1 trading plan adopted on September 26, 2025. |
| F2 | The number of securities reported represents an aggregate number of shares sold in multiple open market transactions over a range of sales prices ranging from $353.06 to $353.96 per share. The price reported represents the weighted average price. The Reporting Person undertakes to provide to the staff of the SEC, the Issuer, or a stockholder of the Issuer, upon request, the number of shares sold by the Reporting Person at each separate price within the ranges set forth in this footnote and in footnotes 3 through 13. |
| F3 | The number of securities reported represents an aggregate number of shares sold in multiple open market transactions over a range of sales prices ranging from $354.31 to $355.31 per share. The price reported represents the weighted average price. |
| F4 | The number of securities reported represents an aggregate number of shares sold in multiple open market transactions over a range of sales prices ranging from $355.41 to $356.38 per share. The price reported represents the weighted average price. |
| F5 | The number of securities reported represents an aggregate number of shares sold in multiple open market transactions over a range of sales prices ranging from $356.55 to $357.40 per share. The price reported represents the weighted average price. |
| F6 | The number of securities reported represents an aggregate number of shares sold in multiple open market transactions over a range of sales prices ranging from $357.57 to $358.49 per share. The price reported represents the weighted average price. |
| F7 | The number of securities reported represents an aggregate number of shares sold in multiple open market transactions over a range of sales prices ranging from $358.66 to $359.50 per share. The price reported represents the weighted average price. |
| F8 | The number of securities reported represents an aggregate number of shares sold in multiple open market transactions over a range of sales prices ranging from $359.84 to $360.01 per share. The price reported represents the weighted average price. |
| F9 | The number of securities reported represents an aggregate number of shares sold in multiple open market transactions over a range of sales prices ranging from $360.60 to $361.49 per share. The price reported represents the weighted average price. |
| F10 | The number of securities reported represents an aggregate number of shares sold in multiple open market transactions over a range of sales prices ranging from $361.73 to $362.58 per share. The price reported represents the weighted average price. |
| F11 | The number of securities reported represents an aggregate number of shares sold in multiple open market transactions over a range of sales prices ranging from $369.14 to $370.09 per share. The price reported represents the weighted average price. |
| F12 | The number of securities reported represents an aggregate number of shares sold in multiple open market transactions over a range of sales prices ranging from $373.50 to $374.00 per share. The price reported represents the weighted average price. |
| F13 | The number of securities reported represents an aggregate number of shares sold in multiple open market transactions over a range of sales prices ranging from $374.75 to $374.95 per share. The price reported represents the weighted average price. |
| F14 | As of the most recently published account statement, the reporting person beneficially owned this number of whole shares of common stock pursuant to the InterDigital Savings and Protection Plan. |