INSPERITY, INC. — Director's Dealing 2010

Aug 17, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ADMINISTAFF INC \DE\ (ASF)
CIK: 0001000753
Period of Report: 2010-08-16

Reporting Person: PETSCH GREGORY E (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-08-16	Common Stock	M	5000	$8.10	Acquired	17438	Direct
2010-08-16	Common Stock	M	5000	$15.41	Acquired	22438	Direct
2010-08-16	Common Stock	S	5000	$22.3558	Disposed	17438	Direct
2010-08-16	Common Stock	S	5000	$22.3564	Disposed	12438	Direct
2010-08-16	Common Stock	S	11000	$22.2186	Disposed	1438	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-08-16	Director Stock Option	$8.10	M	5000	Disposed	2013-05-08	Common Stock (5000)	Direct
2010-08-16	Director Stock Option	$15.41	M	5000	Disposed	2014-05-06	Common Stock (5000)	Direct

Footnotes

F1: Weighted average sales price. Actual prices ranged from $22.24 to $22.448.

F2: Weighted average sales price. Actual prices ranged from $22.20 to $22.41.

F3: Weighted average sales price. Actual prices ranged from $22.09 to $22.29.

F4: 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.