Profitability improved as well. Fourth-quarter gross margin was 86% (gross profit of $110.8 million), and full-year gross margin was 85%. Adjusted EBITDA in the fourth quarter was $38.3 million, up 33% year over year, with the margin expanding 340 basis points to 29.8%. Full-year Adjusted EBITDA was $127.6 million, representing a 26.8% margin.Fourth-quarter revenue rose 18% to $128.8 million, including about $1 million from Corellium. Full-year revenue increased 19% to $475.7 million. Barter said software s ...