Holding Company Registration Threshold Equalization Act of 2013 - Amends the Securities Exchange Act of 1934 to require an issuer that is a savings and loan holding company to register with the Securities and Exchange Commission (SEC) if: (1) its assets exceed $10 million, and (2) it has a class of equity security held of record by 2,000 or more persons.

Requires termination of such registration after a savings and loan holding company certifies that its holders of record of such class of security has been reduced to fewer than 1,200 persons.

Suspends automatically the duty of a savings and loan holding company to file supplementary and periodic information if the securities of each class to which the registration statement relates (other than any class of asset-backed securities) are held of record by fewer than 1,200 persons.