CSG SYSTEMS INTERNATIONAL INC — Director's Dealing 2012

May 14, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: CSG SYSTEMS INTERNATIONAL INC (CSGS)
CIK: 0001005757
Period of Report: 2012-05-11

Reporting Person: NAFUS EDWARD C (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-05-11	Common Stock	S	8000	$16.55	Disposed	36937	Direct

Footnotes

F1: The price reported above reflects the weighted average sale price.