Company: MRCY
Filing Date: 2025-09-10
Form Type: DEF 14A
Source: 0001049521-25-000029
Chunk: 77

Company: MERCURY SYSTEMS INC
Filing Date: 2025-09-10
Form: DEF 14A
Chunk 77
---
 purchased on the open market on August 18, 2023.

(6) Represents PSUs granted as Company matching awards in respect of the participant's irrevocable election in December 2024 to enroll in our Deferred Compensation Matching Plan ("DCMP") for calendar 2025. Consistent with SEC rules, the number of shares reported for these awards reflects an updated amount based on the participant's anticipated DCMP contributions through the end of calendar 2025, as well as the closing price of our common stock on June 27, 2025 of $53.41.

<div align='center'>62</div>

#### Options Exercised and Stock Vested
The following table provides information regarding the vesting of RSUs and PSUs held by our named executive officers during fiscal 2025. No stock options were exercised by any of the named executive officers during fiscal 2025.

|                      |     | Stock Awards |        |     |                |         |
| Name                 |     | Number of    
 Shares       
 Acquired on  
 Vesting(1)   
 (#)          |        |     | Value Realized 
 on Vesting(2)  
 ($)            |         |
| Current Employees:   |     |              |        |     |                |         |
| William L. Ballhaus  |     |              | 21,421 |     |                | 858,982 |
| David E. Farnsworth  |     |              | 19,826 |     |                | 795,023 |
| Stuart H. Kupinsky   |     |              |  7,433 |     |                | 330,397 |
| Steven V. Ratner     |     |              |  9,263 |     |                | 487,635 |
| Former Employees:    |     |              |        |     |                |         |
| Charles R. Wells, IV |     |              | 17,152 |     |                | 716,453 |

(1) The amounts reported in this column represent the gross number of shares of our common stock acquired upon the vesting of RSUs and PSUs without taking into account shares sold on behalf of the recipient to satisfy applicable tax withholding obligations.

(2) The amounts reported in this column are calculated based on the closing market price of our common stock on the applicable vesting dates.

<div align='center'>63</div>

#### Nonqualified Deferred Compensation
The following table provides information regarding contributions