Southeastern Asset Management Reports Reduced 3.68% Stake in GCI Liberty, Inc.

On May 15, 2026, Southeastern Asset Management, Inc., along with Longleaf Partners Small-Cap Fund and O. Mason Hawkins, filed a Schedule 13G/A regarding their holdings in GCI Liberty, Inc. (GLIBA). The filing reveals that Southeastern Asset Management now beneficially owns 1,321,110 shares of Series C GCI Group Common Stock, representing a 3.68% ownership stake. This is a decrease from previous reporting thresholds, as the group now owns less than 5% of the 35,853,250 total shares outstanding. Specifically, Southeastern holds sole voting and dispositive power over 2,124 shares and shared power over 1,318,986 shares. Longleaf Partners Small-Cap Fund reported shared power over 1,318,986 shares, while Mr. Hawkins reported no direct beneficial ownership. The reporting persons certified that the securities were acquired in the ordinary course of business without the intent to influence or change the control of the issuer. The event triggering this filing occurred on March 31, 2026.