| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Mahon Janice K | SVP of Tech Commercialization | C/O UNIVERSAL DISPLAY CORPORATION, 250 PHILLIPS BLVD., EWING | /s/ Janice K. Mahon (by Mauro Premutico as power of attorney) | 06 Mar 2026 | 0001423446 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | OLED | Common Stock | Tax liability | -605 | -1% | $101.52* | 58,511 | 04 Mar 2026 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | These shares were withheld to satisfy a tax liability in connection with the vesting on March 4, 2026 of 1,676 shares of restricted stock previously granted to the Reporting Person. |