SEI INVESTMENTS CO — Director's Dealing 2013

May 17, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SEI INVESTMENTS CO (SEIC)
CIK: 0000350894
Period of Report: 2013-05-16

Reporting Person: Klauder N Jeffrey (EXECUTIVE VICE PRESIDENT)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-05-16	STOCK OPTION (RIGHT TO PURCHASE)	M	1515	$15.01	Acquired	19479	Direct
2013-05-16	COMMON STOCK	S	1515	$30.35	Disposed	17964	Direct
2013-05-17	STOCK OPTION (RIGHT TO PURCHASE)	M	18485	$15.01	Acquired	36449	Direct
2013-05-17	COMMON STOCK	S	18485	$30.35	Disposed	17964	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2013-05-16	STOCK OPTION (RIGHT TO PURCHASE)	$15.01	M	1515	Acquired	2014-08-14	common stock (1515)	Direct
2013-05-17	STOCK OPTION (RIGHT TO PURCHASE)	$15.01	M	18485	Acquired	2014-08-14	common stock (18485)	Direct