Company: MRCY
Filing Date: 2025-09-10
Form Type: DEF 14A
Source: 0001049521-25-000029
Chunk: 11

Company: MERCURY SYSTEMS INC
Filing Date: 2025-09-10
Form: DEF 14A
Chunk 11
---
 on the outcome of voting on these matters.

• All other proposals. All of the other proposals at the meeting require the favorable vote of a majority of the votes cast on the matter. Abstentions and broker non-votes, as applicable, which are described above, will have no effect on the outcome of voting on these matters.

#### How is Mercury soliciting proxies?
We bear the cost of preparing, assembling, and mailing the proxy material relating to the solicitation of proxies by the Board of Directors for the meeting. In addition to the use of the mails, certain of our directors, officers, and regular employees may, without additional compensation, solicit proxies in person, by telephone, or by other means of communication. We will also request brokerage houses, custodians, nominees, and fiduciaries to forward copies of the proxy material to those persons for whom they hold shares, and will reimburse those record holders for their reasonable expenses in transmitting this material.

We have engaged Innisfree M&A Incorporated to assist in the solicitation of proxies and provide related advice and informational support, for agreed services fees and reimbursement of customary disbursements and expenses. In addition to fees and expenses for services provided through the date of the meeting, Innisfree's fee in connection with the proxy solicitation for this meeting is not expected to exceed $50,000.

<div align='center'>3

PROPOSAL 1: ELECTION OF THREE CLASS I DIRECTORS AND ONE CLASS II DIRECTOR</div>

#### Who sits on the Board of Directors?
Our by-laws provide for a Board of Directors of not fewer than three nor more than fifteen directors. As permitted by Massachusetts law, the Board of Directors is divided into three classes, with each class consisting, as nearly as may be possible, of one-third of the whole number of the Board of Directors. The Board of Directors currently consists of nine members, with: William L. Ballhaus, Lisa S. Disbrow, and Howard L. Lance serving as Class I directors; Jean Bua, Gerard J. DeMuro, and Scott Ostfeld serving as Class II directors; and Orlando P. Carvalho, Barry R. Nearhos, and Debora A. Plunkett serving as Class III directors.

The terms of the Class I, Class II, and Class III directors expire in 2025, 2026, and 2027, respectively. With the expiration of its respective term, each class is nominated for election for a subsequent three-year term. We