Liberty Broadband Corporation (“Liberty Broadband”) (Nasdaq: LBRDA, LBRDK, LBRDP), announced today that, in connection with its upcoming spin-off (the “Spin-Off”) of its wholly owned subsidiary GCI Liberty, Inc. (“GCI Liberty”), it has been advised by Nasdaq that shares of GCI Liberty’s Series A common stock and Series C common stock will trade on a when-issued basis on The Nasdaq Global Select Market under the symbols “GLBAV” and “GLBKV”, respectively, from July 11, 2025 through July 14, 2025. The Spin-Off is expected to occur after market-close on July 14, 2025 through the distribution, by means of a dividend, of GCI Liberty common stock to holders of record of Liberty Broadband common stock as of 5:00 p.m., New York City time, on June 30, 2025, the record date for the distribution. However, because Nasdaq has established July 15, 2025 as the ex-dividend date for the distribution, and as a result of related “due bill” trading procedures, persons acquiring shares of Liberty Broadband’s Series A common stock and Series C common stock in the market through July 14, 2025 will still receive the respective shares of GCI Liberty in the Spin-Off. GCI Liberty Series A common stock and Series C common stock will begin trading in the regular way on Tuesday, July 15, 2025 on The Nasdaq Stock Market under the symbols “GLIBA” and “GLIBK”, respectively. GCI Liberty Series B common stock has been approved for quotation on the OTC Markets under the symbol “GLIBB,” and quoting is expected to begin on or around Monday, July 21, 2025.

Cautionary Note Regarding Forward-Looking Statements

This communication includes certain forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, including certain statements relating to the transactions described herein, including the proposed timing thereof. All statements other than statements of historical fact are “forward-looking statements” for purposes of federal and state securities laws. These forward-looking statements generally can be identified by phrases such as “possible,” “potential,” “intends” or “expects” or other words or phrases of similar import or future or conditional verbs such as “will,” “may,” “might,” “should,” “would,” or “could,” or similar variations. These forward-looking statements involve many risks and uncertainties that could cause actual results and the timing of events to differ materially from those expressed or implied by such statements, including, without limitation, satisfaction of the conditions to the transactions described herein. These forward-looking statements speak only as of the date of this communication, and Liberty Broadband and GCI Liberty expressly disclaim any obligation or undertaking to disseminate any updates or revisions to any forward-looking statement contained herein to reflect any change in Liberty Broadband’s or GCI Liberty’s expectations with regard thereto or any change of events, conditions or circumstances on which any such statement is based. Please refer to the publicly filed documents of Liberty Broadband and GCI Liberty, including the Final Prospectus relating to the Spin-Off of GCI Liberty, and Liberty Broadband’s most recent Annual Report on Form 10-K and Quarterly Report on Form 10-Q, as such risk factors may be amended, supplemented or superseded from time to time by other reports Liberty Broadband or GCI Liberty subsequently files with the SEC, for additional information about Liberty Broadband, GCI Liberty and the risks and uncertainties related to Liberty Broadband’s and GCI Liberty’s businesses that may affect the statements made in this communication.

About Liberty Broadband Corporation

Liberty Broadband Corporation (Nasdaq: LBRDA, LBRDK, LBRDP) operates and owns interests in a broad range of communications businesses. Liberty Broadband’s principal assets consist of its interest in Charter Communications, Inc. and its subsidiary GCI, LLC (“GCI”). GCI provides data, mobile, video, voice and managed services to consumer, business, government and carrier customers throughout Alaska, serving more than 200 communities. The company has invested $4.7 billion in its Alaska network and facilities over the past 45 years. Through a combination of ambitious network initiatives, GCI continues to expand and strengthen its statewide network infrastructure to deliver the best possible connectivity to its customers and close the digital divide in Alaska.

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