BioArctic

Major Shareholding Notification • Oct 25, 2022

Press release

BioArctic's founders intend to divest minor part of their shareholding

Stockholm, October 25, 2022 – BioArctic AB (publ) (Nasdaq Stockholm: BIOA B) has been made aware that the company's two founders and main shareholders, Lars Lannfelt and Pär Gellerfors, intend to divest a minor part of their respective shareholding.

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This information is information that BioArctic AB (publ) is obliged to disclose pursuant to the EU Market Abuse Regulation. The information was released for public disclosure, through the agency of the contact persons above, on October 25, 2022, at 17:35 CET.

For further information, please contact:

Oskar Bosson, VP Communications and IR E-mail: oskar.bosson@bioarctic.se Phone: +46 70 410 71 80

About BioArctic AB

BioArctic AB (publ) is a Swedish research-based biopharma company focusing on disease-modifying treatments for neurodegenerative diseases, such as Alzheimer's disease, Parkinson's disease and ALS. BioArctic focuses on innovative treatments in areas with high unmet medical needs. The company was founded in 2003 based on innovative research from Uppsala University, Sweden. Collaborations with universities are of great importance to the company together with its strategically important global partner Eisai in Alzheimer disease. The project portfolio is a combination of fully funded projects run in partnership with global pharmaceutical companies and innovative in-house projects with significant market and out-licensing potential. BioArctic's Class B share is listed on Nasdaq Stockholm Mid Cap (ticker: BIOA B). For more information about BioArctic, please visit www.bioarctic.com.