Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) x 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 o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-38899 Milestone Pharmaceuticals Inc. (Exact Name of Registrant as Specified in its Charter) (State or other jur ...

| --- | --- | --- | --- | --- | |-------------------------|-------|-------|-------|-------| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Joseph Oliveto | | | | | | Chief Executive Officer | | | | | Disclaimers This Presentation contains forward-looking statements within the meaning of the safe harbor provisions of the Private Securities Litigation Reform Act of 1995, as amended. In some cases, you can identify forward-looking statements by terminology such as ''aim,'' ''anticipate,'' ''assu ...