INSPERITY, INC. — Director's Dealing 2010

Dec 3, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ADMINISTAFF INC \DE\ (ASF)
CIK: 0001000753
Period of Report: 2010-12-02

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-12-02	Common Stock	M	14485	$18.00	Acquired	140279.911	Direct
2010-12-02	Common Stock	S	14485	$29.00	Disposed	125794.911	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-12-02	Employee Stock Option (right to buy)	$18.00	M	14485	Disposed	2011-03-15	Common Stock (14485)	Direct

Footnotes

F1: The options became exercisable in three equal annual installments beginning March 15, 2002.