17 CFR § 240.12g-1 - Registration of securities; exemption from section 12(g).
An issuer is not required to register a class of equity securities pursuant to section 12(g)(1) of the Act (15 U.S.C. 78l(g)(1)) if on the last day of its most recent fiscal year:
(a) The issuer had total assets not exceeding $10 million; or
(b)
(1) The class of equity securities was held of record by fewer than 2,000 persons and fewer than 500 of those persons were not accredited investors (as such term is defined in § 230.501(a) of this chapter, determined as of such day rather than at the time of the sale of the securities); or
(2) The class of equity securities was held of record by fewer than 2,000 persons in the case of a bank; a savings and loan holding company, as such term is defined in section 10 of the Home Owners' Loan Act (12 U.S.C. 1461); or a bank holding company, as such term is defined in section 2 of the Bank Holding Company Act of 1956 (12 U.S.C. 1841).