X0306 4 2023-03-02 0 0001289945 Spok Holdings, Inc SPOK 0001070123 WALLACE MICHAEL W C/O SPOK HOLDINGS, INC. 5911 KINGSTOWNE VILLAGE PARKWAY, 6TH FLR ALEXANDRIA VA 22315 0 1 0 0 Chief Operating Officer Common Stock 2023-03-02 4 M 0 20556 9.30 A 110488 D Common Stock 2023-03-02 4 F 0 9271 9.30 D 101217 D Restricted Stock Units 2023-03-02 4 M 0 20556 0.00 D Common Stock 20556 158767 D Restricted Stock 2023-03-02 4 F 0 3974 0.00 D Common Stock 3974 154793 D On January 2, 2020, Mr. Wallace was granted an award of Restricted Stock Units ("RSUs"), which vest in the form of Common Stock if specified performance objectives of the Company set forth in the 2020 Long Term Incentive Plan ("LTIP") are achieved for the year ending December 31, 2022. On March 2, 2023, shares were issued upon vesting of the RSUs. Each Restricted Stock Units ("RSUs") represents a contingent right to receive one share of the issuer's Common Stock. On March 2, 2023, 3,974 shares were forfeited due to performance criteria of the 2020 LTIP not being met. /s/ MICHAEL WALLACE 2023-03-03