Antigenics Inc. (NASDAQ: AGEN) announced that the company received a letter from the Listing Qualifications Staff of The NASDAQ Stock Market LLC (the “Staff”) on July 20, 2010 indicating that the company is not in compliance with Nasdaq Marketplace Rule 5550(a)(2) (the “Bid Price Requirement”) because the bid price for the company’s common stock has closed below the minimum $1.00 per share requirement for 30 consecutive business days.

There is no change in the trading of company common stock on the NASDAQ Capital Market at this time, and in accordance with Nasdaq Marketplace Rule 5810(c)(3)(A), the company has been provided 180 calendar days, or until January 18, 2011, to regain compliance with the Bid Price Requirement. After the initial 180 calendar day period, the company may be eligible for an additional 180 day compliance period to regain compliance with the Bid Price Requirement, assuming it continues to meet The NASDAQ Capital Market initial listing criteria set forth in Marketplace Rule 5505, excluding the Bid Price Requirement.

To regain compliance with the minimum bid price continued listing requirement, the bid price of the company's common stock must close at $1.00 per share or more for a minimum of ten consecutive business days. The Staff may, in its discretion, require the company's common stock to maintain a bid price of at least $1.00 per share for a period in excess of ten consecutive business days before determining that the Company has demonstrated an ability to maintain long-term compliance.

If compliance is not demonstrated within the applicable compliance period, the Staff will notify the company that its securities will be delisted from the NASDAQ Capital Market. However, the company may appeal the Staff’s determination to delist its securities to a Hearings Panel. During any appeal process, shares of the company’s common stock would continue to trade on the NASDAQ Capital Market.