We were incorporated under the General Corporation Law of the State of Delaware on February 18, 2005. On June 22, 2005, we completed our initial public offering and commenced operations. We operate as an externally managed, closed-end, non-diversified management investment company and have elected to be treated as a business development company ("BDC") under the Investment Company Act of 1940, as amended (the "1940 Act"). For U.S. federal income tax purposes, we have elected to be treated as a regulated investment company ("RIC") under Subchapter M of the Internal Revenue Code of 1986, as amended (the "Code"). To continue to qualify as a RIC for U.S. federal income tax purposes and obtain favorable RIC tax treatment, we must meet certain requirements, including certain minimum distribution requirements. From our initial public offering in 2005 and through March 31, 2019, we made 165 consecutive monthly distributions to common stockholders.
Shares of our common stock, 6.250% Series D Cumulative Term Preferred Stock ("Series D Term Preferred Stock"), and 6.375% Series E Cumulative Term Preferred Stock ("Series E Term Preferred Stock") are traded on the Nasdaq Global Select Market ("Nasdaq") under the trading symbols "GAIN," "GAINM," and "GAINL," respectively.
We are externally managed by the Adviser, an affiliate of ours and an SEC registered investment adviser, pursuant to an investment advisory and management agreement (the "Advisory Agreement"). We have also entered into an administration agreement (the "Administration Agreement") with Gladstone Administration, LLC (the "Administrator"), an affiliate of ours and the Adviser. Each of the Adviser and the Administrator are privately-held companies that are indirectly owned and controlled by David Gladstone, our chairman and chief executive officer. Mr. Gladstone and Terry Lee Brubaker, our vice chairman and chief operating officer, also serve on the board of directors of the Adviser, the board of managers of the Administrator, and as executive officers of the Adviser and the Administrator. The Administrator employs, among others, our chief financial officer and treasurer, chief valuation officer, chief compliance officer, general counsel and secretary (who also serves as the president, general counsel and secretary of the Administrator) and their respective staffs. The Adviser and Administrator have extensive experience in our lines of business and also provide investment advisory and administrative services, respectively, to our affiliates, including: Gladstone Commercial Corporation ("Gladstone Commercial"), a publicly-traded real estate investment trust; Gladstone Capital Corporation ("Gladstone Capital"), a publicly-traded BDC and RIC; and Gladstone Land Corporation, a publicly-traded real estate investment trust (together with "Gladstone Commercial" and "Gladstone Capital," collectively the "Affiliated Public Funds"). In the future, the Adviser and Administrator may provide investment advisory and administrative services, respectively, to other funds and companies, both public and private.