Aeterna Zentaris(AEZS) - 2018 Q4 - Annual Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ___________________________ FORM 20-F ¨ Registration Statement Pursuant to Section 12(b) or 12(g) of The Securities Exchange Act of 1934 OR 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 OR ¨ Transition Report Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 OR ¨ Shell Company Report Pursuant to Section 13 or 15(d) of The Securities ...