Live feed16:07:00·49dINSIDERFilingvia QuantisnowChairman & CEO Gallagher Thomas P. sold $755,746 worth of shares (15,771 units at $47.92) as part of a pre-agreed trading plan and exercised 15,771 shares at a strike of $12.00 (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.MIAX· Miami International Holdings Inc.FinanceOriginal source