Sequana Medical N : ANNOUNCES NEW SHARE CAPITAL AMOUNT AND NEW NUMBER OF SHARES

PRESS RELEASE

REGULATED INFORMATION

4 October 2023, 06:00 pm CEST

SEQUANA MEDICAL ANNOUNCES NEW SHARE CAPITAL AMOUNT

AND NEW NUMBER OF SHARES

Ghent, Belgium, 4 October 2023 - Sequana Medical NV (Euronext Brussels: SEQUA) (the "Company" or "Sequana Medical"), a pioneer in the treatment of fluid overload in liver disease, heart failure and cancer, announces that, in the framework of the "restricted share unit" or "RSU" plan for non-executiveindependent directors as approved by the Company's extraordinary shareholders' meeting of 10 February 2023, the Company's share capital has increased on 4 October 2023 from EUR 2,921,010.22 to EUR 2,926,295.90 and the number of issued and outstanding shares has further increased from 28,191,733 to 28,242,753 ordinary shares, through the issuance of a total of 51,020 new shares that were subscribed for in the capital increase.

The total current number of outstanding subscription rights amounts to 4,058,822, which entitles their holders (if exercised) to subscribe to 3,819,135 new shares with voting rights in total, namely:

• up to 261,895 new shares can be issued upon the exercise of 90,780 share options that are still outstanding under the 'Executive Share Options' plan for staff members and consultants of the Company, entitling the holder thereof to acquire ca. 2.88 new shares when exercising one of his or her share options (the "Executive Share Options");
• up to 984,138 new shares can be issued upon the exercise of 984,138 share options (each share option having the form of a subscription right) that are still outstanding under the '2018 Share Options' plan for directors, employees and other staff members of the Company and its subsidiaries, entitling the holder thereof to acquire one new share when exercising one of his or her share options (the "2018 Share Options");
• up to 997,600 new shares can be issued upon the exercise of 997,600 share options (each share option having the form of a subscription right) that are still outstanding under the '2021 Share Options' plan for directors, employees and other staff members of the Company and its subsidiaries, entitling the holder thereof to acquire one new share when exercising one of his or her share options (the "2021 Share Options");
• up to 302,804 new shares can be issued to Bootstrap Europe S.C.SP. upon the exercise of 10 warrants (each warrant having the form of a subscription right) that are still outstanding that have been issued by the extraordinary shareholders meeting of 27 May 2022 (the "Bootstrap Warrants");
• up to 161,404 new shares can be issued to Kreos Capital VII Aggregator SCSp. upon the exercise of 875,000 warrants (each warrant having the form of a subscription right) that are still outstanding that have been issued by the extraordinary shareholders meeting of 10 February 2023 (the "Kreos Warrants"); and
• up to 1,111,294 new shares can be issued upon exercise of 1,111,294 subscription rights that are

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PRESS RELEASE

REGULATED INFORMATION

4 October 2023, 06:00 pm CEST

still outstanding that have been issued by the board of directors (within the framework of the authorized capital) on 27 April 2023 in the framework of the aforementioned private placement of new shares and new subscription rights (the "2023 Investor Warrants").

This announcement is made in accordance with Article 15 of the Belgian Act of 2 May 2007 on the disclosure of major participations in issuers of which shares are admitted to trading on a regulated market and regarding miscellaneous provisions.

For more information, please contact:

Sequana Medical

Lies Vanneste

Director Investor Relations

1. [e-mail]

1. [phone]

About Sequana Medical

Sequana Medical NV is a pioneer in treating fluid overload, a serious and frequent clinical complication in patients with liver disease, heart failure and cancer. These patients can have up to 15 liters of extra fluid in their bodies, causing major medical issues including increased mortality, repeated hospitalizations, severe pain, difficulty breathing and restricted mobility that severely impacts daily life. Although diuretics are standard of care, the problem is that in many patients they are no longer effective and / or tolerable. There are limited effective treatment options for these patients, resulting in poor clinical outcomes, high costs and a major impact on their quality of life. Sequana Medical is seeking to provide innovative treatment options for this large and growing "diuretic-resistant" patient population.

alfapump® and DSR® are Sequana Medical's proprietary platforms that work with the body to treat diuretic-resistant fluid overload, delivering major clinical and quality of life benefits for patients and reducing costs for healthcare systems. The Company has reported positive primary endpoint data from the North American pivotal POSEIDON trial of the alfapump in recurrent or refractory ascites due to liver cirrhosis, enabling the filing of a Pre-Market Approval (PMA) application with the FDA, planned for Q4 2023. Having delivered clinical proof-of-concept for DSR as a disease-modifying drug program for the treatment of heart failure, the Company has commenced MOJAVE, a US randomized controlled multi- center Phase 1/2a clinical trial of DSR 2.0, with initial data expected in Q4 2023.

Sequana Medical is listed on Euronext Brussels (Ticker: SEQUA.BR) and headquartered in Ghent, Belgium. For further information, please visit www.sequanamedical.com.

Important Regulatory Disclaimers

The alfapump® system is currently not approved in the United States or Canada. In the United States and Canada, the alfapump system is currently under clinical investigation (POSEIDON Trial) and is being studied

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PRESS RELEASE

REGULATED INFORMATION

4 October 2023, 06:00 pm CEST

in adult patients with refractory or recurrent ascites due to liver cirrhosis. DSR® therapy is still in development and it should be noted that any statements regarding safety and efficacy arise from ongoing pre-clinical and clinical investigations which have yet to be completed. There is no link between DSR therapy and ongoing investigations with the alfapump system in Europe, the United States or Canada.

Note: alfapump® and DSR® are registered trademarks

Forward-looking statements

This press release may contain predictions, estimates or other information that might be considered forward-looking statements. Such forward-looking statements are not guarantees of future performance. These forward-looking statements represent the current judgment of Sequana Medical on what the future holds, and are subject to risks and uncertainties that could cause actual results to differ materially. Sequana Medical expressly disclaims any obligation or undertaking to release any updates or revisions to any forward-looking statements in this press release, except if specifically required to do so by law or regulation. You should not place undue reliance on forward-looking statements, which reflect the opinions of Sequana Medical only as of the date of this press release.

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