LEXINGTON, Mass.--(BUSINESS WIRE)--Antigenics Inc. (NASDAQ: AGEN) invites investors and the general public to its 2009 Annual Shareholders Meeting at 5:00 p.m. ET on Wednesday, June 10. The meeting will be held at the company’s headquarters at 3 Forbes Road, Lexington, MA 02421. Registration for attendees starts at 4:30 p.m. ET.