CELLECTIS A French limited liability company ( soci t anonyme ) with share capital of 1,758,930.70 Registered Office: 8, rue de la Croix Jarry - 75013 Paris Paris trade and companies register No. 428 859 052 (the Company

liability company (soci t anonyme) with share capital of 1,758,930.70

Registered Office: 8, rue de la Croix

Paris trade and companies register No. 428 859 052

COMBINED SHAREHOLDERS MEETING

Shareholders are hereby

informed that they are called to attend the combined shareholders meeting to be held on May 17, 2016 at 9:30am, at the Biopark auditorium located 11 rue Watt, 75013 Paris, France, in order to deliberate on the following agenda:

Agenda presented to the ordinary shareholders meeting

Agenda presented to the extraordinary shareholders meeting