Assemblée Générale Mixte du 29 mai 2020

All the resolutions submitted to the Shareholder’s vote have been approved.

Boulogne-Billancourt (France), 29 May 2020 – The Combined Shareholders’ Meeting of Ipsen
S.A. (Euronext: IPN; ADR: IPSEY), chaired by Mr. Aymeric Le Chatelier, Chief Executive Officer,
in accordance with Article 8 of the Decree n° 2020-418 of 10 April 2020, was held today behind
closed doors, without the physical presence of shareholders and other persons entitled to attend,
at the Company’s headquarters 65, Quai Georges Gorse, 92100 Boulogne-Billancourt.

The Shareholders’ Meeting approved all the resolutions submitted by the Board of Directors and in
particular the distribution of an amount of €1.00 per share to be paid on 5 June 2020 (ex-date 3
June 2020).

The Shareholders’ Meeting also ratified the temporary appointment as a Director of the company
Highrock S.àr.l, represented by Mrs. Anne Beaufour, and of the company Beech Tree S.A,
represented by Mr. Philippe Bonhomme. It further decided to renew the term of office of the
company Beech Tree S.A and Mrs. Carol Xueref for a duration of four years, as a Director.

Following this Shareholders’ Meeting, the Board of Directors is still comprised of 13 members, five
of whom are women, four are independent directors and a director representing the employees.
During the Meeting, Mr. Marc de Garidel, Chairman of the Board of Directors, and Mr. Aymeric Le
Chatelier, Chief Executive Officer and Chief Financial Officer, focused notably on the group
strategy, the financial results for 2019, and also provided an outlook for 2020 and 2022.