MaaT Pharma

Declaration of Voting Results & Voting Rights Announcements • Apr 4, 2025

Monthly Information Regarding the Total Number of Voting Rights and Shares Comprising the Share Capital

Article 223-16 of the General Regulations of the Financial Markets Authority (AMF - Autorité des Marchés Financiers)

Lyon, France, April 4th, 2025 - 6:00 pm CET - MaaT Pharma (EURONEXT: MAAT - the "Company"), a clinical-stage biotechnology company and a leader in the development of Microbiome Ecosystem Therapies™ (MET) dedicated to enhancing survival for patients with cancer through immune modulation, today published the number of shares comprising the share capital and the total number of voting rights (Article L. 233-8 of the French Commercial Code (Code de commerce) and Article 223-16 of the General Regulations of French Autorité des Marchés Financiers (AMF)) on March 31, 2025.

Listing place: Euronext Paris

ISIN code: FR0012634822

Website: www.maatpharma.com

Date	Total number of	Total number of	Total number
	shares comprising the	theoretical voting	of effective
	share capital	rights (1)	voting rights (2)
03/31/25	16 115 251	16 115 251	16 084 493

(1) In accordance with Article 223-11 of the AMF General Regulation, this number is calculated on the basis of all shares to which voting rights are attached, including shares whose voting rights have been suspended.

(2) Effective voting rights correspond to the total number of voting rights that may be used at a General Meeting. The total number of effective voting rights is calculated without taking into account the shares with suspended voting rights.

About MaaT Pharma

MaaT Pharma is a leading, late-stage clinical company focused on developing innovative gut microbiome-driven therapies to modulate the immune system and enhance cancer patient survival. Supported by a talented team committed to making a difference for patients worldwide, the Company was founded in 2014 and is based in Lyon, France. As a pioneer, MaaT Pharma is leading the first microbiome-driven immunomodulator in

oncology. Using its proprietary pooling and co-cultivation technologies, MaaT Pharma develops high | MAAT diversity, standardized drug candidates, aiming at extending life of cancer patients. MaaT Pharma has been listed on Euronext Paris (ticker: MAAT) since 2021.

Contacts

MaaT Pharma – Investor Relations

Guilhaume DEBROAS, Ph.D. Head of Investor Relations +33 6 16 48 92 50 invest@maat-pharma.com

MaaT Pharma - Media Relations

Pauline RICHAUD Senior PR & Corporate Communications Manager +33 6 14 06 45 92 media@maat-pharma.com