X0306 4 2021-02-01 0 0001304492 Anterix Inc. ATEX 0001654170 Schwartz Robert Harris 3 GARRET MOUNTAIN PLAZA, SUITE 401 SUITE 401 WOODLAND PARK NJ 07424 0 1 0 0 President and CEO Common Stock 2021-02-01 4 A 0 45000 0.00 A 85850 D The performance-based restricted stock units (the "Units") vest upon the Reporting Person's continued service and achievement of certain stock price levels calculated utilizing a four-year compound annual growth rate and based on the average closing bid price per share of the Issuer's common stock measured over a sixty (60) trading-day period. The Reporting Person may vest in a minimum of 25% of the target reported Units and up to a maximum of 350% of the target reported Units based on specified stock price levels. The vesting end measurement date is February 1, 2025, with earlier vesting determination dates upon a change in control of Issuer, the involuntary termination of the Reporting Person or twelve (12) months following the achievement of the maximum stock price level. If after February 1, 2023, the Reporting Person achieves a stock price level, there will be a vesting determination date the earlier of 12 months thereafter or February 1, 2025. /s/ Timothy Gray, attorney-in-fact 2021-02-03