EVP, Gen Counsel & Secretary Hall Bryan H converted options into 36,346 units of Class A Common Shares, covered exercise/tax liability with 15,904 units of Class A Common Shares, converted options into 48,454 units of Class C Common Shares and covered exercise/tax liability with 21,201 units of Class C Common Shares, decreasing direct ownership by 7% to 230,365 units (SEC Form 4)