X0306 4 2018-03-09 0 0001289945 Spok Holdings, Inc SPOK 0001253133 KELLY VINCENT D C/O SPOK HOLDINGS, INC. 6850 VERSAR CTR STE 420 SPRINGFIELD VA 22151 1 1 0 0 President & CEO Common Stock 2018-03-09 4 M 0 43202 A 125743 D Common Stock 2018-03-09 4 F 0 19485 15.90 D 106258 D Restricted Stock Units 2018-03-09 4 M 0 43202 0.00 D Common Stock 43202 291573 D Restricted Stock Units 2018-03-09 4 D 0 43203 0.00 D Common Stock 43203 248370 D On March 9, 2018, shares were issued upon vesting of Restricted Stock Units ("RSUs") granted to Mr. Kelly under the Spok Holdings, Inc. 2015 Long Term Incentive Plan (the "2015 LTIP"). RSUs were granted to Mr. Kelly under the 2015 LTIP. Each RSU represents a contingent right to receive one share of the issuer's Common Stock. On March 9, 2018 Mr. Kelly surrendered 19,485 shares of Spok Holdings, Inc. ("the Company") common stock to the Company in payment of required tax withholdings due upon vesting of the Company's 2015 Long Term Incentive Plan. The price was based on the closing price per share of March 2, 2018 as reported on NASDAQ. On March 9, 2018 43,202 shares vested under the 2015 LTIP. On March 9, 2018, 43,203 shares were forfeited due to performance criteria of the 2015 LTIP not being met. /VINCENT D. KELLY/ 2018-03-09