A public offering of equity securities by a company (i.e., the issuer or issuing company) that has previously embarked on issuing/ floating its stock to the public through initial public offering (IPO). The seasoned offering represents an addition to the base of existing stock (equity base), and hence it increases the number of shares outstanding. In relation to initial public offerings, seasoned offerings are easier to price and handle because the market has already revealed the real value (fair value) of the floated shares.

Seasoned offering subdivides into primary seasoned offering and secondary seasoned offering.

It is also known as a seasoned offering or follow-on public offer (FPO).