Number of shares and voting rights and cash situation of INNATE PHARMA as at December 31, 2009

Following the capital increase reserved to categories of investors executed in December 2009 and pursuant to the article L. 233-8 II of the French “Code de Commerce” and the article 223-16 of the French stock-market authorities (“AMF”) charter, Innate Pharma SA updates its total number of shares outstanding as well as its voting rights as at December 31, 2009:

• Total number of shares outstanding:    36,636,794
• Voting rights:    36,636,794

Following the capital increase, cash, cash equivalents and current financial instruments amounted to 49.2 million euros as at December 31, 2009.

Following the recent announcement of its financial calendar for 2010, the Company amends the date of its annual General Shareholders Meeting which will eventually take place in Marseilles on May 25, 2010.