X0306 4 2019-03-08 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 Common Stock 2019-03-08 4 M 0 689 0.00 A 1141 D Common Stock 2019-03-08 4 F 0 252 14.21 D 889 D Restricted Stock Units 2019-03-08 4 M 0 689 0.00 D Common Stock 689 8535 D Restricted Stock Units 2019-03-08 4 D 0 689 0.00 D Common Stock 689 7846 D On March 8, 2019, shares were issued upon vesting of Restricted Stock Units ("RSUs") granted to Mr. Rice under the Spok Holdings, Inc. 2016 Long Term Incentive Plan (the "2016 LTIP"). On March 8, 2019, Mr. Rice surrendered 252 shares of Spok Holdings, Inc. (the "Company") common stock to the Company in payment of required tax withholdings due upon vesting of the time based awards. The price was based on the closing price per share of March 1, 2019 as reported on NASDAQ. RSUs were granted to Mr. Rice under the 2016 LTIP. Each RSU represents a contingent right to receive one share of the issuer's Common Stock. On March 8, 2019, 689 shares vested. On March 8, 2019, 689 shares were forfeited due to performance criteria of the 2016 LTIP not being met. /CALVIN RICE/ 2019-03-08