X0306 4 2021-03-03 0001000753 INSPERITY, INC. NSP 0001198985 MINCKS JAY E 19001 CRESCENT SPRINGS DRIVE KINGWOOD TX 77339 1 EVP of Sales & Marketing Common Stock 2021-03-03 4 F 0 5779 89.71 D 115111 D Common Stock 2021-03-03 4 A 0 258 0 A 115369 D Common Stock 2021-03-04 4 F 0 4826 89.23 D 110543 D Common Stock 2021-03-04 4 A 0 110 0 A 110653 D Payment of tax liability by withholding securities incident to the settlement of the one-year performance period awards that were granted under the Insperity, Inc. 2012 Incentive Plan, following the recent final certification of the achievement of the performance conditions by the Compensation Committee. The number of shares represents the cash value of dividend rights that were settled in shares of Insperity, Inc. common stock based on the fair market value of the common stock on the trading day immediately preceding the settlement date. /s/ Daniel D. Herink, by Power of Attorney 2021-03-05