Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 _________________________________________________________________________________ FORM 10-K ý Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2018 o Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Commission File Number Exact name of registrant as specified in its charter, addresses of principal executiv ...