SEC Form 4: LOPKER PAMELA M returned $315,025 worth of Class B Common Stock to the company (6,322 units at $49.83) , covered exercise/tax liability with 9,221 units of Class B Common Stock, exercised 160,000 units of Class A Common Stock at a strike of $11.81, returned $1,889,630 worth of Class A Common Stock to the company (24,627 units at $76.73) , covered exercise/tax liability with 58,846 units of Class A Common Stock and exercised 30,000 units of Class B Common Stock at a strike of $10.50, decreasing direct ownership by 98% to 75,297 units
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