INSPERITY, INC. — Director's Dealing 2010

Sep 14, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ADMINISTAFF INC \DE\ (ASF)
CIK: 0001000753
Period of Report: 2010-09-13

Reporting Person: ARIZPE ARTHUR A (Exec VP Client Services & COO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-09-13	Common Stock	M	5478	$9.03	Acquired	131272.911	Direct
2010-09-13	Common Stock	S	5478	$23.00	Disposed	125794.911	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-09-13	Employee Stock Option (right to buy)	$9.03	M	5478	Disposed	2013-10-01	Common Stock (5478)	Direct

Footnotes

F1: The options became exercisable in five equal annual installments beginning on October 1, 2004. On February 18, 2005 the Compensation Committee of the Board of Directors of Administaff accelerated the vesting of the remaining unvested options.