RSA 293-A:7.41: Standing.

A shareholder may not commence or maintain a derivative proceeding unless the shareholder:

(1) was a shareholder of the corporation at the time of the act or omission complained of or became a shareholder through transfer by operation of law from one who was a shareholder at that time; and

(2) fairly and adequately represents the interests of the corporation in enforcing the right of the corporation.