Oregon Revised Statutes Corporations and Partnerships § 60.237

(a) The shareholder is an entity and the name signed purports to be that of an officer or agent of the entity;

(b) The name signed purports to be that of an administrator, executor, guardian or conservator representing the shareholder and, if the corporation requests, evidence of fiduciary status acceptable to the corporation has been presented with respect to the vote, consent, waiver or proxy authorization;

(c) The name signed purports to be that of a receiver or trustee in bankruptcy of the shareholder and, if the corporation requests, evidence of this status acceptable to the corporation has been presented with respect to the vote, consent, waiver or proxy authorization;

(d) The name signed purports to be that of a pledgee, beneficial owner or attorney-in-fact of the shareholder and, if the corporation requests, evidence acceptable to the corporation of the signatory's authority to sign for the shareholder has been presented with respect to the vote, consent, waiver or proxy authorization; or

(e) Two or more persons are the shareholder as cotenants or fiduciaries and the name signed purports to be the name of at least one of the co-owners and the person signing appears to be acting on behalf of all co-owners.

(a) The secretary or other officer or agent authorized to tabulate votes, acting in good faith, has a reasonable basis for doubt about the validity of the signature on the vote, consent, waiver or proxy authorization or about the signatory's authority to sign for the shareholder; or

(b) The shares of the corporation are registered under ORS chapter 59 or under federal securities law and the shareholder has failed to comply with the disclosure requirements identified in 15 U.S.C. 78m(d) or 78p(a) with respect to the registered corporation.

(4)(a) A corporation that rejects a vote, consent, waiver or proxy authorization because a shareholder failed to comply with the disclosure requirements identified in subsection (3)(b) of this section shall reject a vote, consent, waiver or proxy authorization from each shareholder that fails to comply with the disclosure requirements.

(b) A corporation may not continue to reject a vote, consent, waiver or proxy authorization because a shareholder failed to comply with the disclosure requirements identified in subsection (3)(b) of this section after the shareholder complies with the disclosure requirements.