X0306 4 2018-12-07 0001611983 Liberty Broadband Corp LBRDA 0001099636 MAFFEI GREGORY B 12300 LIBERTY BLVD. ENGLEWOOD CO 80112 1 1 President/CEO Series C Common Stock 2018-12-07 5 G 0 35174.0000 0.0000 D 424417.0000 D Series C Common Stock 614252.0000 I Maven 2016 - 1 GRAT These holdings were decreased by one share from the Form 4 filed by the reporting person on 12/31/2015 as the result of an accounting reconciliation. In addition, on December 5, 2016, the reporting person contributed 614,252 shares to a grantor retained annuity trust, of which the reporting person is the sole trustee, for the benefit of himself, his spouse and his children. On December 5, 2016, the reporting person contributed 614,252 shares to a grantor retained annuity trust, of which the reporting person is the sole trustee, for the benefit of himself, his spouse and his children. /s/ Craig Troyer as Attorney-in-Fact for Gregory B. Maffei 2018-12-11