X0508 4 2025-09-15 0002057463 GCI Liberty, Inc. GLIBK 0000937797 MALONE JOHN C 12300 LIBERTY BOULEVARD ENGLEWOOD CO 80112 1 1 0 Series C GCI Group Common Stock 2025-09-15 4 P 0 5500.0000 34.9617 A 1163608.0000 D Series C GCI Group Common Stock 2025-09-16 4 P 0 2228.0000 34.9335 A 1165836.0000 D Series C GCI Group Common Stock 2025-09-17 4 P 0 42170.0000 34.9910 A 1208006.0000 D Series C GCI Group Common Stock 71421.0000 I Leslie A. Malone 1995 Revocable Trust Series C GCI Group Common Stock 42666.0000 I Malone LG 2013 Charitable Remainder Unitrust The price is a weighted average price. These shares were purchased in multiple transactions ranging from $34.950 to $35.000, inclusive. The reporting person undertakes to provide to the Securities and Exchange Commission, the Issuer, or any security holder of the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range. The price is a weighted average price. These shares were purchased in multiple transactions ranging from $34.870 to $34.955, inclusive. The reporting person undertakes to provide to the Securities and Exchange Commission, the Issuer, or any security holder of the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range. The price is a weighted average price. These shares were purchased in multiple transactions ranging from $34.920 to $35.000, inclusive. The reporting person undertakes to provide to the Securities and ExchangeCommission, the Issuer, or any security holder of the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range. The Reporting Person disclaims beneficial ownership of these shares owned by his spouse. /s/ Brittany A. Uthoff as Attorney-in-Fact for John C. Malone 2025-09-17