ERYTECH Pharma S.A.

Declaration of Voting Results & Voting Rights Announcements • Apr 4, 2017

Information related to total number of voting rights and shares composing the share capital – March 2017

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

Listing market: Euronext Paris from Euronext Market segment : segment C

ISIN Code : FR0011471135

website : www.erytech.com

Date	Total of shares composing the share capital	Total of brut(1) voting rights	Total of net(2) voting rights
01 January 2017	8 732 648	10 410 050	10 407 550
28 February 2017	8 732 648	10 395 830	10 393 330
31 March 2017	8 734 698(3)	10 351 950	10 349 450

(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

(3) The capital increase due to the exercise of warrants will be acted during a future board meeting.