X0306 4 2019-01-02 0 0001289945 Spok Holdings, Inc SPOK 0001757839 Rice Calvin C/O SPOK HOLDINGS, INC. 6850 VERSAR CTR STE 400 SPRINGFIELD VA 22151 0 1 0 0 Controller Restricted Stock Units 2019-01-02 4 A 0 2310 0.00 A Common Stock 2310 7367 D Restricted Stock Units 2019-01-02 4 A 0 2309 0.00 A Common Stock 2309 9676 D The Restricted Stock Units which if not forfeited, will convert into shares of common stock if specified performance objectives of the Company set forth in the 2019 LTIP are achieved for the year ending December 31, 2021. The Restricted Stock Units which if not forfeited will convert into shares of common stock. The Restricted Stock Units vest in three equal annual installments beginning December 31, 2019. Vested shares will be delivered to the reporting person for the fiscal years ending December 31, 2019, December 31, 2020 and December 31, 2021 /CALVIN RICE/ 2019-01-04