A seasoned equity offering or secondary equity offering (SEO) or capital increase is a new equity issued by an already publicly traded company. Seasoned offerings may involve shares sold by existing shareholders (non-dilutive), new shares (dilutive) or both. If the seasoned equity offering is made by an issuer that meets certain regulatory criteria, it may be a shelf offering.
- UNDERWRITER CHOICE AND ANNOUNCEMENT EFFECTS FOR SEASONED EQUITY OFFERINGS by Fredrick P. Schadler* and Timothy L. Manuel Archived 2016-03-03 at the Wayback Machine
- Investopedia: Secondary Offering