Wyo. Stat. § 17-16-1321: Notice of intent to demand payment and consequences of voting or consenting.

(a) If proposed corporate action requiring appraisal under W.S. 17-16-1302 is submitted to a vote at a shareholders' meeting, a shareholder who wishes to assert appraisal rights with respect to any class or series of shares:

(i) Shall deliver to the corporation before the vote is taken written notice of the shareholder's intent to demand payment if the proposed action is effectuated; and

(ii) Shall not vote or cause or permit to be voted any shares of the class or series in favor of the proposed action.

(b) If a corporate action specified in W.S. 17-16-1302(a) is to be approved by written consent, a shareholder who wishes to assert appraisal rights with respect to any class or series of shares shall not execute a consent in favor of the proposed action with respect to that class or series of shares.

(c) A shareholder who does not satisfy the requirements of subsection (a) or (b) of this section is not entitled to payment for his shares under this article.