Liberty Broadband imposes SOX blackout on Series C stock ahead of GCI Liberty spin-off

Liberty Broadband Corp

Blackout for Liberty Broadband Series C stock begins as early as 4:00 p.m. ET on May 30, 2025 or as late as Aug 28, 2025; expected to last ~25 business days.
GCI Liberty Series C common stock blackout begins on distribution date (expected summer 2025, between June 2 and Aug 29).
Directors and executive officers prohibited from trading Liberty Broadband and GCI Liberty securities during blackout under Section 306 of SOX.
Blackout facilitates creation of GCI Group common stock fund in the GCI 401(k) Plan after the spin-off.

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