Pres., Commercial & Operations Blotner Jon sold $570,518 worth of Class A Common Stock (5,925 units at $96.29) as part of a pre-agreed trading plan, converted options into 23,450 units of Class A Common Stock and covered exercise/tax liability with 11,339 units of Class A Common Stock, increasing direct ownership by 6% to 117,344 units (SEC Form 4) to satisfy withholding tax