(a) With respect to an obligation on or a defense to a security, “issuer” includes a person that:
(1) places or authorizes the placing of its name on a security certificate, other than as authenticating trustee, registrar, transfer agent, or the like, to evidence a share, participation, or other interest in its property or in an enterprise or to evidence its duty to perform an obligation represented by the certificate;
(2) creates a share, participation, or other interest in its property or in an enterprise, or undertakes an obligation, that is an uncertificated security;
(3) directly or indirectly creates a fractional interest in its rights or property, if the fractional interest is represented by a security certificate; or
(4) becomes responsible for, or in place of, another person described as an issuer in this section.
(b) With respect to an obligation on or defense to a security, a guarantor is an issuer to the extent of its guaranty, whether or not its obligation is noted on a security certificate.