DUBLIN--(BUSINESS WIRE)--Alkermes plc (NASDAQ: ALKS) announced today that it will present at the Jefferies 2011 Global Healthcare Conference on Wednesday, Sept. 28, 2011, at 12:20 p.m. BST (7:20 a.m. ET) from London. The webcast may be accessed from the investor relations section on www.alkermes.com and will be archived for 14 days.