Contact Information

Investor Relations Contacts

John Lyon
Vice President, 
Director of Corporate Finance

Andrew Finkelstein
Director of Investor Relations

+1 877 PER NYSE
(+1 877 737 6973)
Fax +1 972 577 6791
investors@ps.net

Stock Administration Contact

For stockholder services, including account information, stock certificates and registration, address change, or transfer of shares
+1 972 577 5670
Stock-Dept@ps.net

Media Relations Contact

Joe McNamara
Corporate Communications Director
+1 972 577 6165
news@ps.net