A company subject to Section 15(d) of the Securities Exchange Act of 1934, as amended (Exchange Act) is an SEC reporting company. Section 15(d) requires companies to file certain periodic reports and information required by Section 13 of the Exchange Act (such as Form 10-K and Form 10-Q reports) as if they had securities registered under Section 12 of the Exchange Act.

Companies that have issued equity or debt securities to the public in a registered offering, but have not listed on any securities exchange or crossed the size threshold of Section 12(g) also become subject to Section 15(d) of the Exchange Act.