UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q Title of each class Trading Symbol Name of each exchange on which registered Common stock, Par Value $0.10 per share ATRI The NASDAQ Stock Market LLC Title of Each Class Number of Shares Outstanding at April 20, 2019 Common stock, Par Value $0.10 per share 1,852,756 ☑ Quarterly Report Pursuant To Section 13 or 15(d) of the Securities Exchange Act of 1934 for the Quarterly Period Ended March 31, 2019 or ☐ Transition Report Purs ...