MBI Term Loan Exchange Offer - Interim Participation Update

On June 23, 2026, Cable One, Inc. (the "Company") announced that, as of 5:00 p.m., New York City time, on June 22, 2026, the designated exchange agent for the Company's previously announced offer (the "MBI Term Loan Exchange Offer") to lenders (the "MBI Lenders") of the senior secured term loans (the "MBI Term Loans") outstanding under that certain Credit Agreement, dated as of November 12, 2020 (as amended, amended and restated, supplemented or otherwise modified from time to time), among Mega Broadband Investments Holdings LLC, as borrower, the lenders from time to time party thereto and Truist Bank, as administrative agent, had received irrevocable lender acceptances from MBI Lenders holding approximately 33.4% of all outstanding MBI Term Loans.

As previously disclosed, subject to the terms of the MBI Term Loan Exchange Offer, any MBI Lender that delivers a lender acceptance to the designated exchange agent after 3:00 p.m. (New York City time) on June 22, 2026 will receive, in exchange for its MBI Term Loans, on a first-come first-served basis, (1) if, and solely to the extent that, the aggregate principal amount of MBI Term Loans of such participating MBI Lender, together with all MBI Term Loans of all earlier participating MBI Lenders, does not exceed 50.01% of the outstanding principal amount of MBI Term Loans, a combination of (i) 50.0% of the aggregate principal amount of the MBI Term Loans of such participating MBI Lender in cash and (ii) 50.0% of the aggregate principal amount of the MBI Term Loans of such participating MBI Lender in new first lien "first out" term loans of the Company; and/or (2) otherwise, 100% of the aggregate principal amount of the MBI Term Loans of such participating MBI Lender in new first lien "second out" term loans of the Company.

The MBI Term Loan Exchange Offer is scheduled to expire at 5:00 p.m., New York City time, on June 23, 2026, unless extended or earlier terminated by the Company in accordance with the terms of the Offer Notice (as defined below).

The Company is making the MBI Term Loan Exchange Offer pursuant to the offer materials distributed to eligible MBI Lenders. The foregoing is a summary of certain terms of the MBI Term Loan Exchange Offer and does not purport to be complete, and is subject to, and qualified by, the offer materials distributed to eligible MBI Lenders (the "Offer Notice"), a copy of which was filed as Exhibit 99.1 to the Company's Current Report on Form 8-K filed on June 22, 2026 and is incorporated herein by reference.

This Current Report on Form 8-K does not constitute an offer to purchase or a solicitation of an offer to sell any securities, nor shall there be any sale of any securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction.