{"url_path":"/sec/ccoi/8-k/2026-06-15/item-1-01","section_key":"item-1-01","section_title":"Item 1.01 Entry into a Material Definitive Agreement.**","topic":"sec","document":{"doc_type":"8-K","doc_date":"2026-06-15","source_url":"https://www.sec.gov/Archives/edgar/data/1158324/0001104659-26-074046-index.html","accession_number":"0001104659-26-074046","cik":"0001158324","ticker":"CCOI","issuer_name":"COGENT COMMUNICATIONS HOLDINGS, INC.","edgar_url":"https://www.sec.gov/Archives/edgar/data/1158324/0001104659-26-074046-index.html","primary_entity_key":"0001158324","primary_entity_name":"COGENT COMMUNICATIONS HOLDINGS, INC."},"word_count":382,"has_tables":true,"body_markdown":"**Item 1.01.  Entry into a Material Definitive Agreement.**\n\n \n\nOn June 15, 2026, Cogent Communications Group,\nLLC (“Cogent Group”) and Cogent Finance, Inc. (the “Co-Issuer” and, together with Cogent Group, the “Issuers”),\ntwo wholly owned subsidiaries of Cogent Communications Holdings, Inc. (the “Company”), entered into a First Supplemental\nIndenture (the “Supplemental Indenture”) with the Company, the other guarantors named therein and Wilmington Trust, National\nAssociation, as trustee and collateral agent (the “Trustee and Collateral Agent”), to the Indenture, dated as of June 17,\n2025 (the “Indenture”), among the Issuers, the Company, the other guarantors named therein, the Trustee and Collateral Agent\nto effect certain amendments to the Indenture to: (i) amend the “Permitted Liens” definition therein to increase the\nsecured leverage ratio under the “ratio liens” basket from 4.00:1.00 to 4.75:1.00; (ii) require the Company to contribute\nor otherwise provide to Cogent Group and/or one or more of its restricted subsidiaries the proceeds of certain data center sales and require\nCogent Group to use such proceeds solely to repurchase or otherwise retire existing indebtedness at a discount (with at least 50% of such\nproceeds being used to repurchase the Issuers’ existing 6.500% Senior Secured Notes due 2032 (the “Notes”)); (iii) provide\nthat the proceeds from such data center sales will not be used to increase available restricted payment capacity under the Indenture;\n(iv) provide that Cogent Group will not make restricted payments constituting the dividend, distribution, sale, transfer or contribution\nof indefeasible rights of use (“IRUs”) and prohibit any IRU that is owned or held by Cogent Group or any guarantor from being\ntransferred to, assumed by or refinanced by any unrestricted subsidiary or any restricted subsidiary that is not a guarantor, subject\nto limited exceptions; and (v) amend, supplement or change certain other provisions in the Indenture related to the foregoing. Entry\ninto the Supplemental Indenture follows the Issuers’ receipt of consents from holders of a majority of the outstanding aggregate\nprincipal amount of the Notes. The Supplemental Indenture was effective upon execution.\n\n \n\nThe foregoing description of the Supplemental\nIndenture does not purport to be complete and is qualified in its entirety by reference to the Supplemental Indenture, a copy of which\nis filed as Exhibit 4.1 to this Current Report on Form 8-K and incorporated into this Item 1.01 by reference."}