Impinj, Inc. announced its financial results for the fourth quarter and full year ended Dec. 31, 2016.   Full year revenue grew 43% year-over-year to $112.3 million, with GAAP gross margin of 52.9%. GAAP net loss was $1.7 million, with adjusted EBITDA of $5.1 million.   In the fourth quarter, revenue grew 49% year-over-year to $33.7 million. GAAP gross margin was 54.6%, and adjusted EBITDA was $2.4 million. Non-GAAP net income was $2.2 million, or income of $0.11 per diluted share using 20.7...