SEC filings report that StubHub CEO Eric Baker bankrolls mass scalpers to help them buy and post large quantities of tickets for resale on StubHub, pretending to be individual attendees in order to mark up prices beyond their original cost.

StubHub's 'marketplace for fans' is run by a mass scalper, SEC filings reveal | CBC News
A CBC investigation has found that behind StubHub's marketing claims that it is simply a "marketplace for fans to buy and sell tickets," the online ticket company is run by a mass scalper and helps to bankroll other large-scale resellers who use the platform.
cbc.ca