Third Quarter Fiscal Year 2020 Financial Results

Protecting health, safety and livelihoods of employees... ● ● ● ● Continued to pay hourly employees in California sites temporarily shut down ● Committed to do same at facilities that may be closed as crisis continues • Created $1M relief fund for employees experiencing financial burdens Increased overtime pay to 2x regular rate; adjusted sick-leave policies Maintaining previous fiscal-year guidance reflecting confidence in business Expect double-digit revenue (13-14% organic) and adj. EBITDA growth for FY20 ...while delivering on our commitments to shareholders © 2020 Mercury Systems, Inc. 5

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