INSPERITY, INC. — Director's Dealing 2010

Nov 18, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ADMINISTAFF INC \DE\ (ASF)
CIK: 0001000753
Period of Report: 2010-11-17

Reporting Person: RAWSON RICHARD G (Director, President)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-11-17	Common Stock	S	4607	$27.7649	Disposed	361495	Indirect
2010-11-17	Common Stock	S	4608	$27.7649	Disposed	395658	Indirect
2010-11-18	Common Stock	S	22044	$28.3155	Disposed	339451	Indirect
2010-11-18	Common Stock	S	22043	$28.3155	Disposed	373615	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	350	Indirect
Common Stock	50	Indirect
Common Stock	50	Indirect
Common Stock	169988	Direct

Footnotes

F1: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2010.

F2: Weighted average sales price. Actual prices ranged from $27.50 to $28.35.

F3: Full information regarding the number of shares sold at each separate price will be provided upon request to the SEC's staff, Administaff, Inc. or its stockholders.

F4: Weighted average sales price. Actual prices ranged from $27.75 to $28.57.