INSPERITY, INC. — Director's Dealing 2010

Aug 3, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ADMINISTAFF INC \DE\ (ASF)
CIK: 0001000753
Period of Report: 2010-08-02

Reporting Person: RAWSON RICHARD G (Director, President)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-08-02	Common Stock	S	5000	$28.4333	Disposed	407766	Indirect
2010-08-02	Common Stock	S	400	$27.75	Disposed	407366	Indirect
2010-08-02	Common Stock	S	3500	$27.0333	Disposed	403866	Indirect
2010-08-02	Common Stock	S	5000	$28.4333	Disposed	373602	Indirect
2010-08-02	Common Stock	S	400	$27.75	Disposed	373202	Indirect
2010-08-02	Common Stock	S	3500	$27.0333	Disposed	369702	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	249082	Direct
Common Stock	350	Indirect
Common Stock	50	Indirect
Common Stock	50	Indirect

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 May 5, 2010.

F2: Weighted average sales price. Actual prices ranged from $28.25 to $29.15.

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 $27.00 to $27.12.