SEC Form 4: Maffei Gregory B exercised 3,337,193 units of Series C Liberty SiriusXM Common Stock at a strike of $28.01, covered exercise/tax liability with 2,569,713 units of Series C Liberty SiriusXM Common Stock, exercised 333,910 units of Series C Liberty Braves Common Stock at a strike of $16.17, exercised 834,316 units of Series C Liberty Formula One Common Stock at a strike of $16.16 and covered exercise/tax liability with 492,328 units of Series C Liberty Formula One Common Stock, increasing direct ownership by 518% to 4,086,724 units