Company: MRCY
Filing Date: 2025-09-10
Form Type: DEF 14A
Source: 0001049521-25-000029
Chunk: 63

Company: MERCURY SYSTEMS INC
Filing Date: 2025-09-10
Form: DEF 14A
Chunk 63
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 factor for the 2025-2027 PSU awards. Accordingly, 35.7% of target shares have been earned through fiscal 2025 under the 2025-2027 PSU awards, subject to a three-year TSR-based performance modifier that will be applied as set forth in the table below.

| TSR Performance Modifier for Fiscal 2025-2027 PSU Awards |     |                                 |     |                       |     |                    |     |       |
| Achievement Levels                                       |     | FY25-27                         
 Relative TSR Percentile Ranking |     |                       |     | Payout Modifier(1) |     |       |
| Maximum                                                  |     |                                 |     | ≥     75th Percentile |     |                    |     | + 25% |
| High Target                                              |     |                                 |     | 55th Percentile       |     |                    |     | 0%    |
| Low Target                                               |     |                                 |     | 50th Percentile       |     |                    |     | 0%    |
| Threshold                                                |     |                                 |     | <     25th Percentile |     |                    |     | - 25% |

(1) Payouts for performance between the stated achievement levels are calculated using linear interpolation.

Annual Long-Term Incentive Awards Granted to Named Executive Officers in Fiscal 2025

The Committee typically approves the grant of long-term incentive awards for named executive officers on an annual basis in mid-August. For fiscal 2025, the Committee (and in the case of Mr. Ballhaus, the independent directors on the Board) approved the annual long-term incentive awards below, which were granted on August 15, 2024.

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| Grant Date Target Value of Annual LTI Awards for Fiscal 2025(1) 
 Current Employees:                                              |     | Restricted Stock Units(2) 
 ($)                       |           |     | Performance Stock Units(2) 
 ($)                        |           |     | Total 
 ($)   |           |
|:----------------------------------------------------------------|:----|:--------------------------|----------:|:----|:---------------------------|----------:|:----|:------|----------:|
| William L. Ballhaus                                             |     | $                         | 2,380,000 |     | $                          | 3,570,000 |     | $     | 5,950,000 |
| David E. Farnsworth(3)                                          |