Biotage

Major Shareholding Notification • Jun 14, 2013

Press release Biotage AB

Contact: SE-751 03 Uppsala Torben Jörgensen, President and CEO Tel+46 18 56 59 00 Tel: +46 707 49 05 84, torben.jorgensen@biotage.com www.biotage.com

Box 8

Uppsala June 14 , 2013

Biotage AB (publ) – disclosure notice of substantial holding of shares

Biotage AB (publ) has as of 13 June 2013 bought back an aggregate of 3,574,007 shares under the re-purchase program resolved at the Annual General Meeting with the shareholders on 25 April 2013. The Company`s aggregated holding of own shares corresponds to 5.11 per cent of the total amount of shares and votes in the Company.

The total amount of shares outstanding, including shares held in treasury, amounts to 69,861,330.

The Board of Directors intends to propose the forthcoming Annual General Meeting to resolve that the re-purchased shares shall be cancelled.

Biotage discloses the information provided herein pursuant to the Swedish Securities Markets Act and/or the Swedish Financial Instruments Trading Act. The information was submitted for publication at 09.00 on June 14 2013.

About Biotage

Biotage offers solutions, knowledge and experience in the areas of analytical chemistry, medicinal chemistry, separation and purification. The customers include pharmaceutical and biotech companies, companies within the food industry and leading academic institutes. The company is headquartered in Uppsala and has offices in the US, UK, China and Japan. Biotage has approx. 290 employees and had sales of 463 MSEK in 2012. Biotage is listed on the NASDAQ OMX Nordic Stockholm stock exchange. Website: www.biotage.com