President Wenger Howard sold $2,048,579 worth of shares (16,090 units at $127.32) as part of a pre-agreed trading plan, exercised 124,497 shares at a strike of $21.00 and disposed of $15,149,844 worth of shares (124,497 units at $121.69) as part of a pre-agreed trading plan, decreasing direct ownership by 3% to 508,582 units (SEC Form 4) (for tax liability)