STOCKHOLM--(BUSINESS WIRE)--Regulatory News: Tobii AB (STO:TOBII) today reported its results for the first quarter of 2015. A strong start to the year · The Group’s net sales totalled SEK 229 million (115) · The Group’s gross margin totalled 74% (70%) · The Group operating profit/loss (EBIT) totalled SEK -8 million (-4) · The combined operating profit (EBIT) for Tobii Dynavox and Tobii Pro was SEK 34 million (17) while Tobii Tech posted a negative EBIT of SEK -41 million (-21) · Shipments of th