Mr. Mark Thierer reports

CATAMARAN TO HOST 2014 FIRST QUARTER CONFERENCE CALL

Catamaran Corp. will release its fiscal 2014 first quarter financial results on Thursday, May 1, 2014, at 6 a.m. Eastern Time. The company will hold a conference call at 8:30 a.m. Eastern Time that same day, Thursday, May 1, 2014, hosted by Mark Thierer, chairman and chief executive officer, and Mike Shapiro, senior vice-president and chief financial officer.

Please dial in 10 to 15 minutes prior to the call to secure a line.

All interested parties can join the call by dialling 888-797-2980 or 913-312-0638, with access code 8357920. The conference call will be archived for replay until Thursday, May 8, 2014, at 11:30 a.m. Eastern Time. To access the archived conference call, please dial 888-203-1112 or 719-457-0820 and enter the access code 8357920.

This call is being webcast and can be accessed from the Catamaran website. An archived replay of the webcast will be available for 90 days.