Sources: Polymarket investors pressured CEO Shayne Coplan to add stricter financial and operational controls; Elon Musk's lawyer, Alex Spiro, joined its board (Bloomberg)
https://www.bloomberg.com/news/articles/2026-10-20/polymarket-investors-push-ceo-coplan-for-change-as-kalshi-gains-ground
http://www.techmeme.com/261020/p30#a261020p30