Orexo

Declaration of Voting Results & Voting Rights Announcements • May 31, 2019

Press release

Number of shares and votes in Orexo

Uppsala, Sweden – May 31, 2019 – The number of votes in Orexo AB has changed as a result of the conversion of 110,029 class C shares into ordinary shares due to vesting under the company's long-term incentive program, LTIP 2016/2019.

Today, the last trading day of the month, there are in total 35,490,610 shares in Orexo AB, whereof 34,710,639 are ordinary shares and 779,971 class C shares. The total number of votes in the company amounts to 34,788,636.

For further information, please contact:

Orexo AB (publ.)

Lena Wange, IR & Communications Manager Tel: +46 (0)18 780 88 00 E-mail: ir@orexo.com

About Orexo

Orexo develops improved pharmaceuticals based on innovative drug delivery technologies. The focus is primarily on opioid addiction and pain but the aim is to address therapeutic areas where our competence and technologies can create value. The products are commercialized by Orexo in the US or via partners worldwide. The main market today is the American market for buprenorphine/naloxone products, where Orexo sells the product Zubsolv®. Total net sales for 2018 amounted to SEK 783.1 million and the number of employees was 129. Orexo is listed on the Nasdaq Stockholm Mid Cap (ORX) and is available as ADRs on OTCQX (ORXOY) in the US. The head office, where research and development is also performed, is situated in Uppsala, Sweden.

For more information about Orexo please visit, www.orexo.com. You can also follow Orexo on Twitter, @orexoabpubl, LinkedIn and YouTube.

This information is information that Orexo AB (publ.) is obliged to make public in accordance with the Swedish Financial Instruments Trading Act. The information was submitted for publication at 5.30 pm CET on May 31, 2019.