Company: SUPN
Filing Date: 2025-04-30
Form Type: DEF 14A
Source: 0001104659-25-042531
Chunk: 53

Company: SUPERNUS PHARMACEUTICALS, INC.
Filing Date: 2025-04-30
Form: DEF 14A
Chunk 53
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 | — | ​ | ​            | ​ | ​ | ​ |       — | ​ | ​         | ​ | ​ | ​ |       — | ​ | ​          | ​ | ​                                                        | ​ | — | ​ | ​ | ​ | ​ | ​ |   5,000 | ​ | ​ | ​ | ​ | ​ |   5,000 | ​ | ​ | ​ | ​                                            | ​ |     — | ​ | ​ | ​ | ​                                                 | ​ |   139,700 | ​ | ​ |
| ​                         | ​            | ​ | ​          | ​ | 6/24/2024(4) | ​ | ​            | ​ | ​          | ​ | PSUs    | ​ | ​          | ​ | ​                                                            | ​ | — | ​ | ​            | ​ | ​ | ​ |       — | ​ | ​         | ​ | ​ | ​ |       — | ​ | ​          | ​ | ​                                                        | ​ | — | ​ | ​ | ​ | ​ | ​ |   7,500 | ​ | ​ | ​ | ​ | ​ |   7,500 | ​ | ​ | ​ | ​                                            | ​ |     — | ​ | ​ | ​ | ​                                                 | ​ |   201,825 | ​ | ​ |

(1) Future payout amounts are based on the target bonus percentage recommended by the Compensation Committee and approved by the Board of Directors on February 22, 2024. (2) Amounts represent the closing market price of our common stock on the date of the grant. (3) Amounts reflect the aggregate grant date fair value of the awards calculated in accordance with ASC 718. (4) The performance metric for this tranche of the performance share unit grant was approved by the Compensation Committee on June 24, 2024. 36

Outstanding Equity Awards at Fiscal Year-End The table below sets forth certain information regarding the outstanding equity awards held by our NEOs as of December 31, 2024.

| ​                         | ​ | ​ | Options Awards(1)                                              |   |         |   |   |   |                                                                  |   |         |   |   |   |                           |   |       |   |   |   |                      |   |           |   | ​ | ​ | Stock Awards                                         |   |        |   |   |   |                                                              |   |         |   |   |   |