Biosergen

Nasdaq's decision is conditional upon the Swedish Companies Registration Office granting permission to execute the merger plan established between the Company and Flerie, which is expected to occur around 15 October 2026. Subject to such permission being granted, the last day of trading in the Company's shares on Nasdaq First North Growth Market is expected to be 21 October 2026 and the Merger is expected to be registered with the Swedish Companies Registration Office around 23 October 2026.

Advisors

BAHR is legal advisor to the Company in connection with the Merger.

For further information, please contact:

Tine Kold Olesen, CEO

E-mail: tine.olesen@biosergen.net

Telephone: +45 3135 5707

Mark Beveridge, CFO

E-mail: mark.beveridge@biosergen.net

Telephone: +46 76 805 8288

Biosergen's Certified Advisor is DNB Carnegie Investment Bank AB (publ).

The information was submitted for publication, by the agency of the contact person above, on  17 September 2026.

About Biosergen

Biosergen is a biotechnology company in the clinical stage within the therapeutic field of life-threatening fungal diseases. Biosergen's mission is to develop the drug candidate BSG005, including new formulations, into a new first-line treatment choice for resistant and/or difficult-to-treat invasive fungal infections. The company strives to set a new standard for combating these infections where current treatments fall short, thereby saving thousands of lives every year among immunocompromised cancer patients, transplant recipients and AIDS patients.