In January 2000, a group of three investment professionals and two administrative personnel with $100,000,000 under management split off from Gilder, Gagnon, Howe & Co. and formed Gagnon Securities LLC, a registered broker-dealer and investment advisor. The team had a stated goal of creating
a unique environment where group participation and thinking would be a foundation for in-depth research that could yield outsized investment
returns for clients.