Ronald A. Duncan - 05 Jan 2026 Form 4 Insider Report for GCI Liberty, Inc. (GLIBA)

Signature
/s/ Brittany A. Uthoff as Attorney in Fact for Ronald A. Duncan
Issuer symbol
GLIBA
Transactions as of
05 Jan 2026
Net transactions value
-$71,518
Form type
4
Filing time
06 Jan 2026, 16:41:54 UTC
Previous filing
23 Dec 2025
Next filing
23 Feb 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
DUNCAN RONALD A President and CEO, Director 12300 LIBERTY BOULEVARD, ENGLEWOOD /s/ Brittany A. Uthoff as Attorney in Fact for Ronald A. Duncan 06 Jan 2026 0000905853

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction GLIBK Series C GCI Group Common Stock Options Exercise $0 +7,035 +6.4% $0.000000 117,212 05 Jan 2026 Direct F1
transaction GLIBK Series C GCI Group Common Stock Tax liability $71,518 -1,980 -1.7% $36.12 115,232 05 Jan 2026 Direct
holding GLIBK Series C GCI Group Common Stock 557 05 Jan 2026 By 401(k) Savings Plan F2
holding GLIBK Series C GCI Group Common Stock 20,578 05 Jan 2026 By 560 Company, Inc. F3
holding GLIBK Series C GCI Group Common Stock 2,022 05 Jan 2026 By Missy, LLC F4
holding GLIBK Series C GCI Group Common Stock 1,162 05 Jan 2026 By RAD, LLC F5
holding GLIBK Series C GCI Group Common Stock 7,516 05 Jan 2026 By Spouse F6

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction GLIBK Restricted Stock Units - GLIBK Options Exercise $0 -7,035 -100% $0.000000 0 05 Jan 2026 Series C GCI Group Common Stock 7,035 Direct F7
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Each restricted stock unit converted into one share of Series C GCI Group Common Stock.
F2 The number of shares reported as held in the Reporting Person's 401(k) is based on a statement from the Plan Administrator dated as of December 31, 2025.
F3 The Reporting Person owns 55% of 560 Company, Inc. and has voting and dispositive power over these shares. A trust (the "Trust") which the Reporting Person's spouse serves as trustee and his adult daughter is the principal beneficiary owns the remaining 45% of 560 Company, Inc. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest therein.
F4 RAD, LLC has a 25% ownership interest in and is the managing member of Missy, LLC. The Reporting Person's spouse has a 25% ownership interest in Missy, LLC and the Reporting Person's adult daughter holds the remaining 50% ownership interest in Missy, LLC. Accordingly, the Reporting Person may be deemed to be the indirect beneficial owner of certain Issuer's securities owned by Missy, LLC. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest therein.
F5 The Reporting Person has a 0.1% ownership interest in and is the controlling member of RAD, LLC and the Trust holds the remaining 99.9% ownership interest of RAD, LLC. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest therein.
F6 The Reporting Person disclaims beneficial ownership of these shares owned by his spouse.
F7 Each restricted stock unit represents a contingent right to receive one share of Series C GCI Group Common Stock.