Indemnification Agreement between Antigenics and Directors/Executive Officers

This agreement is between Antigenics and its current directors and executive officers. It outlines Antigenics' commitment to protect these individuals from certain legal liabilities and expenses that may arise from their roles within the company. The agreement ensures that, under specified conditions, Antigenics will cover legal costs and damages related to their service as directors or officers. The listed individuals are all parties to this agreement, which is intended to provide them with reassurance and protection while performing their duties.