X0508 4 2025-08-18 0002057463 GCI Liberty, Inc. GLIBK 0000937797 MALONE JOHN C 12300 LIBERTY BOULEVARD ENGLEWOOD CO 80112 1 1 0 Series A GCI Group Common Stock 2025-08-18 4 P 0 66553.0000 35.9367 A 297198.0000 D Series A GCI Group Common Stock 2025-08-18 4 P 0 10853.0000 35.3408 A 308051.0000 D Series C GCI Group Common Stock 2025-08-18 4 P 0 26247.0000 35.7407 A 1052225.0000 D Series A GCI Group Common Stock 2025-08-19 4 P 0 1688.0000 35.9856 A 309739.0000 D Series C GCI Group Common Stock 2025-08-19 4 P 0 29556.0000 35.9578 A 1081781.0000 D Series A GCI Group Common Stock 2025-08-20 4 P 0 4844.0000 35.9351 A 314583.0000 D Series C GCI Group Common Stock 2025-08-20 4 P 0 42605.0000 35.8727 A 1124386.0000 D Series A GCI Group Common Stock 5088.0000 I Leslie A. Malone 1995 Revocable Trust 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 $35.610 to $36.000, 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 $34.590 to $35.555, 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 $35.450 to $36.000, 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 $35.770 to $36.000, 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 $35.590 to $36.000, 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 $35.680 to $36.000, 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 $35.565 to $36.000, 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. /s/ Brittany A. Uthoff as Attorney-in-Fact for John C. Malone 2025-08-20