A person may not, in connection with the offer, sale, or purchase of a security, directly or indirectly,
(1) employ a device, scheme, or artifice to defraud;
(2) make an untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which they were made, not misleading; or
(3) engage in an act, practice, or course of business that operates or would operate as a fraud or deceit on another person.