Stock exchange release Free for publication on September 22, 2016 at 11.30 am (CEST+1) Bittium Corporation: Notification of managers’ transactions Person subject to the notification requirement Name: Seppo Mäkinen Position: Member of the Board of Directors Notification type: Initial Notification Reference number: 743700NFG5W5159OVX65_20160921144118_3 Issuer: Bittium Corporation LEI: 743700NFG5W5159OVX65 Transaction date: September 19, 2016 Venue: XHEL Instrument: Share ISIN: FI0009007264 Nature of transaction: Receipt of a Share-Based Incentive Transaction details (1) Volume: 4 Unit price: EUR 6.86000 (2) Volume: 14 Unit price: EUR 6.85000 (3) Volume: 10 Unit price: EUR 6.85000 (4) Volume: 13 Unit price: EUR 6.84000 (5) Volume: 27 Unit price: EUR 6.84000 (6) Volume: 172 Unit price: EUR 6.84000 (7) Volume: 17 Unit price: EUR 6.84000 (8) Volume: 76 Unit price: EUR 6.85000 (9) Volume: 173 Unit price: EUR 6.85000 (10) Volume: 21 Unit price: EUR 6.79000 (11) Volume: 2 Unit price: EUR 6.79000 (12) Volume: 2 Unit price: EUR 6.79000 (13) Volume: 12 Unit price: EUR 6.80000 (14) Volume: 5 Unit price: EUR 6.76000 (15) Volume: 3 Unit price: EUR 6.76000 (16) Volume: 67 Unit price: EUR 6.76000 (17) Volume: 6 Unit price: EUR 6.76000 (18) Volume: 73 Unit price: EUR 6.76000 (19) Volume: 167 Unit price: EUR 6.76000 (20) Volume: 37 Unit price: EUR 6.76000 (21) Volume: 10 Unit price: EUR 6.76000 (22) Volume: 17 Unit price: EUR 6.76000 (23) Volume: 34 Unit price: EUR 6.76000 (24) Volume: 18 Unit price: EUR 6.76000 (25) Volume: 31 Unit price: EUR 6.76000 (26) Volume: 27 Unit price: EUR 6.76000 (27) Volume: 11 Unit price: EUR 6.76000 (28) Volume: 1 Unit price: EUR 6.76000 (29) Volume: 321 Unit price: EUR 6.76000 Aggregated transactions Volume: 1 371 Volume weighted average price: EUR 6.79247 Oulu, September 22, 2016 Hannu Huttunen CEO Further information: Kari Jokela CLO Tel. +358 40 344 5466 Distribution: Nasdaq Helsinki Ltd Main media Bittium Bittium specializes in the development of reliable, secure communications and connectivity solutions leveraging its 30years legacy of expertise in advanced radio communication technologies. Bittium provides innovative products and customized solutions based on its product platforms and R&D services complementing its communications and connectivity solutions. Bittium offers proven information security solutions for mobile devices and portable computers. Net sales of continuing operations in 2015 were EUR 56.8 million and operating profit was EUR 2.3 million. Bittium is listed on Nasdaq Helsinki. www.bittium.com