#1 Weighted average price. Actual prices ranged from $93.36 to $94.01. Full information regarding the number of shares sold at each separate price will be provided upon request to the SEC's staff, Insperity, Inc. or its stockholders.

#2 Weighted average price. Actual prices ranged from $94.71 to $94.74. Full information regarding the number of shares sold at each separate price will be provided upon request to the SEC's staff, Insperity, Inc. or its stockholders.

#1 Represents a gift of shares to a charitable organization.

#1 On this date, the Compensation Committee certified the achievement of the final performance conditions for these three-year performance period awards granted in 2021. These shares of Insperity, Inc. common stock ("Common Stock") will be settled as soon as practicable.

#2 The number of shares does not include additional shares related to the cash value of dividend rights that will be settled in shares of Common Stock. The value of these dividend rights will be based on the fair market value of the Common Stock on the trading day immediately preceding the final settlement date following the certification of the final performance conditions.

#1 Weighted average price. Actual prices ranged from $80.44 to $81.37. Full information regarding the number of shares sold at each separate price will be provided upon request to the SEC's staff, Insperity, Inc. or its stockholders.

#2 Weighted average price. Actual prices ranged from $81.44 to $81.71. Full information regarding the number of shares sold at each separate price will be provided upon request to the SEC's staff, Insperity, Inc. or its stockholders.