X0306 4 2022-05-02 0 0001289945 Spok Holdings, Inc SPOK 0001747745 Stein Todd J C/O SPOK HOLDINGS, INC. 5911 KINGSTOWNE VILLAGE PARKWAY, 6TH FLR ALEXANDRIA VA 22315 1 0 0 0 Common Stock 2022-05-02 4 P 0 24288 7.0158 A 577678 I Braeside Capital II, L.P. Common Stock 2022-05-02 4 P 0 18116 7.0158 A 529745 I Braeside Capital, L.P. Common Stock 2022-05-02 4 P 0 0 0.00 A 22478 D Common Stock 2022-05-02 4 P 0 42404 7.0158 A 57512 I Braeside Investments, LLC Shares beneficially owned directly by Braeside Capital II, L.P. ("Braeside Capital II"). Braeside Investments, LLC ("Braeside Investments") serves as the investment manager of Braeside Capital II. As a co-manager of Braeside Investments, Mr. Stein may be deemed to beneficially own the shares beneficially owned directly by Braeside Capital II. Mr. Stein disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein. Shares beneficially owned directly by Braeside Capital, L.P. ("Braeside Capital"). Braeside Investments, LLC ("Braeside Investments") serves as the investment manager of Braeside Capital. As a co-manager of Braeside Investments, Mr. Stein may be deemed to beneficially own the shares beneficially owned directly by Braeside Capital. Mr. Stein disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein. Shares beneficially owned directly by a proprietary account under Braeside Investments, LLC. Braeside Investments, LLC ("Braeside Investments") serves as the investment manager of Braeside Capital, L.P. and Braeside Capital II, L.P. As a co-manager of Braeside Investments, Mr. Stein may be deemed to beneficially own the shares beneficially owned directly by Braeside Investments. Mr. Stein disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein. /s/ TODD J. STEIN 2022-05-04