United Therapeutics
Telephone: 301-608-9292
To contact our Transfer Agent:
Mailing address:
Computershare
P.O. Box 43006
Providence, RI 02940-3006
Courier delivery:
Computershare
150 Royall St., Suite 101
Canton, MA 02021
Website:
www.computershare.com/investor
Tel: 1 (201) 680-6578
Toll Free: (800) 524-4458