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ANNAPOLIS, Md., May 8 /PRNewswire-FirstCall/ -- PharmAthene, Inc. (NYSE Amex: PIP) a biodefense company developing medical countermeasures against biological and chemical threats, announced a date change for its first quarter 2009 financial results. The Company's first quarter 2009 financial results will now be released on Friday, May 15, 2009.

PharmAthene management will be hosting a conference call to discuss its first quarter 2009 financial results. The call is scheduled to begin at 10:00 a.m. Eastern Time on Friday, May 15, 2009, and is expected to last approximately 45 minutes.

The dial-in number within the United States is 866-783-2137. The dial-in number for international callers is 857-350-1596. The participant passcode is 47746139.

A replay of the conference call will be available beginning at approximately 1:00 p.m. Eastern Time on May 15, 2009 until approximately 11:59 p.m. Eastern Time June 30, 2009. The dial-in number from within the United States is 888-286-8010. For international callers, the dial-in number is 617-801-6888. The participant passcode is 34158052.

The conference call will also be webcast and can be accessed from the company's website at www.PharmAthene.com. A link to the webcast may be found under the Investor Relations section of the website. The webcast will be available for 30 days, or until approximately June 15, 2009.