HAMDEN, Conn.--(BUSINESS WIRE)--TransAct Technologies Incorporated (Nasdaq: TACT) (“TransAct” or the “Company”) today reported operating results for the first quarter ended March 31, 2015, as summarized below:   Summary of 2015 Q1 Results (In millions, except per share and percentage data)   Three Months EndedMarch 31, 2015   2014 Net sales $ 16.2 $ 13.6 Gross profit $ 6.5 $ 5.7 Gross margin 40.2 % 42.0 % Operating income $ 0.2 $ 0.6 EBITDA(1)(2) $ 0.6 $ 1.0 Net income $ 0.1 $ 0.4 Diluted earni