BioInvent International

Declaration of Voting Results & Voting Rights Announcements • May 29, 2015

PRESS RELEASE 29 May 2015

Change in the number of shares and votes in BioInvent International AB (publ)

Lund, Sweden – 29 May, 2015 – BioInvent International AB (publ) (OMXS:BINV) today announced that the company's total number of shares as per 29 May 2015 amounts to 162,918,961 shares, corresponding to an equal number of votes. The increase in the number of shares and votes results from the rights issue of 50,128,911 shares with preferential right for the company's shareholders, announced on 23 March 2015.

To the editors:

About BioInvent

BioInvent International AB is a research-based pharmaceutical company focused on discovery and development of innovative antibody-based drugs against cancer.

The company has unique expertise in antibody drug development from initial concept to late clinical phase. The screening tool F.I.R.S.T.TM and the antibody library n-CoDeR® are two patented tools that enable identification of relevant human antibodies and disease targets during the discovery phase. BioInvent has also considerable experience in and a facility for process development and production of antibodies for clinical studies. The scope and strength of this platform is also used to develop antibody-based drugs in collaboration with partners who finance the development of new drugs, and provide BioInvent with the right to milestone payments and royalties on sales. These partners include Bayer Pharma, Daiichi Sankyo, Mitsubishi Tanabe Pharma, Servier, and Xoma. More information is available at www.bioinvent.com.

For further information, please contact:

Michael Oredsson President and CEO +46 (0)46 286 85 67 +46 (0)707 16 89 30 michael.oredsson@bioinvent.com

BioInvent International AB (publ)

Co. reg. No. 556537-7263 Visiting address: Sölvegatan 41 Mailing address: 223 70 LUND Phone: +46 (0)46 286 85 50 info@bioinvent.com www.bioinvent.com

Information disclosed in this press release is provided herein pursuant to the Swedish Financial Instruments Trading Act. The information was submitted for publication at 8.30 a.m. CET, on 29 May, 2015.