Wyo. Stat. § 17-17-123: Annual meeting.

(a) The annual meeting date for a statutory close corporation is the last business day of the third month following the close of the business year unless its articles of incorporation, bylaws, or a shareholder agreement authorized by W.S. 17-17-120 fixes a different date.

(b) A statutory close corporation need not hold an annual meeting unless one (1) or more shareholders deliver written notice to the corporation requesting a meeting at least thirty (30) days before the meeting date determined under subsection (a) of this section.