SEI INVESTMENTS CO — Director's Dealing 2011

Jun 7, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SEI INVESTMENTS CO (SEIC)
CIK: 0000350894
Period of Report: 2011-06-03

Reporting Person: WEST ALFRED P JR (Director, 10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-06-03	Common Stock	S	75000	$22.32	Disposed	14751916	Direct

Footnotes

F1: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $22.30 to $22.40, inclusive. The reporting person undertakes to provide to SEI, any security holder of SEI, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.