ERYTECH Pharma S.A.

Declaration of Voting Results & Voting Rights Announcements • Feb 10, 2015

Information related to total number of voting rights and shares composing the share capital January 2015

Article 223-16 of general regulation of french Autorité des Marchés Financiers Lyon - France

Listing market : Euronext Paris from Euronext Market segment : segment B ISIN Code : FR0011471135 website : www.erytech.com

Date	Total of shares composing	Total of brut(1) voting	Total of net(2) voting
	the share capital	rights	rights
31 january 2015	6 882 761	8 090 321	8 085 071

(1) Gross voting rights number (or « theoretical » voting rights) is used as a calculus base for the crossing of the threshold. In accordance with article 223-11 of general regulation of Autorité des Marchés Financiers, this number is calculated on the basis of all shares carrying the single and double voting rights, including shares without voting rights.

(2) Without treasury shares