Cadre’s official story — which its 30-year-old co-founder and CEO, Ryan Williams, rattles off with rehearsed precision — goes something like this: Williams launched his first startup, selling wristbands and headbands in his native Louisiana, as a teenager and went on to graduate from Harvard in 2010. He then landed lucrative jobs at Goldman Sachs and the Blackstone Group until he realized that something just wasn’t right. Institutions and rich people could make fortunes buying […]