INSPERITY, INC. — Director's Dealing 2011

Jan 4, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ADMINISTAFF INC \DE\ (ASF)
CIK: 0001000753
Period of Report: 2010-12-30

Reporting Person: SARVADI PAUL J (Director, Chairman of the Board & CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-12-30	Common Stock	S	7	$29.65	Disposed	1187266	Indirect
2010-12-30	Common Stock	S	4	$29.65	Disposed	575502	Indirect
2010-12-31	Common Stock	S	268	$29.65	Disposed	1186998	Indirect
2010-12-31	Common Stock	S	134	$29.65	Disposed	575368	Indirect
2011-01-03	Common Stock	S	5725	$29.6822	Disposed	1181273	Indirect
2011-01-03	Common Stock	S	2862	$29.6822	Disposed	572506	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	19644	Indirect
Common Stock	180643	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 December 10, 2010.

F2: Weighted average sales price. Actual prices ranged from $29.65 to $29.74.

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.