No a notice would have to be given by Mexus if it was a shareholder meeting. Every public company in the United States is required by its charter documents , the corporate law of its state of incorporation, and the federal securities laws to hold a meeting of shareholders at least once each year. With some companies, shareholders can demand it if enough own a certain percentage, but it depends on what it says in the company bylaws.
Mexus has not had one that I know of in my time as a shareholder since early 2016