INSPERITY, INC. — Director's Dealing 2011

Feb 25, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ADMINISTAFF INC \DE\ (ASF)
CIK: 0001000753
Period of Report: 2011-02-23

Reporting Person: RAWSON RICHARD G (Director, President)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-02-23	Common Stock	M	20000	$18.00	Acquired	196505	Direct
2011-02-23	Common Stock	M	4258	$23.48	Acquired	200763	Direct
2011-02-23	Common Stock	S	14444	$29.09	Disposed	186319	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-02-23	Employee Stock Option (right to buy)	$18.00	M	20000	Disposed	2011-03-15	Common Stock (20000)	Direct
2011-02-23	Employee Stock Option (right to buy)	$23.48	M	4258	Disposed	2011-10-02	Common Stock (4258)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	370409	Indirect
Common Stock	336246	Indirect
Common Stock	350	Indirect
Common Stock	50	Indirect
Common Stock	50	Indirect

Footnotes

F1: Weighted average sales price. Actual prices ranged from $29.02 to $29.18. 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.

F2: The options became exercisable in three equal annual installments beginning on March 15, 2002.

F3: The options became exercisable in three equal annual installments beginning on October 2, 2002.