 ENGLEWOOD, Colo.--BUSINESS WIRE--Liberty Broadband Corporation Liberty Broadband Nasdaq: LBRDA, LBRDK announced today that it has closed its previously announced private offering of 825 million aggregate original principal amount of its 1.25 exchangeable senior debentures due 2050 the Debentures exchangeable for Charter Communications, Inc. Charter Class A common stock, including Debentures in an aggregate original principal amount of 75 million issued pursuant to the exercis 