(2) Offers or sells a security by means of any untrue statement of a material fact or any omission to state a material fact necessary in order to make the statements made, in the light of the circumstances under which they were made, not misleading (the purchaser not knowing of the untruth or omission), and who does not sustain the burden of proof that he did not know, and in the exercise of reasonable care could not have known, of the untruth or omission,
is liable to the person purchasing the security from him, who may sue either at law or in equity to recover the consideration paid for the security, together with interest at the legal rate from the date of payment, costs, and reasonable attorneys' fees, less the amount of any income received on the security, upon the tender of the security, or for damages if the purchaser no longer owns the security. Damages are the amount that would be recoverable upon a tender less the value of the security when the purchaser disposed of it and interest at the legal rate as provided by G.S. 24-1 from the date of disposition.