{"filing":{"accession_number":"0001104659-26-074046","cik":"0001158324","ticker":"CCOI","company_name":"COGENT COMMUNICATIONS HOLDINGS, INC.","form":"8-K","filing_date":"2026-06-15","report_date":null,"primary_document":"tm2617890d1_8k.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1158324/000110465926074046/tm2617890d1_8k.htm"},"events":[{"id":11072,"run_id":9708,"accession_number":"0001104659-26-074046","anchor_item_number":"1.01","event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.45,"summary":"This disclosure describes entry into a First Supplemental Indenture amending the terms of existing debt, including relaxation of the secured leverage ratio covenant (4.00:1.00 to 4.75:1.00), mandatory use of data center sale proceeds for debt repurchase, and restrictions on IRU transfers. While Item 1.01 typically covers M\u0026A activity, this is fundamentally a material debt restructuring and covenant amendment that would affect investor assessment of financial flexibility and leverage constraints. The event is material but does not fit the M\u0026A taxonomy precisely—it is better classified as a material debt covenant modification or restructuring.","company_name":"COGENT COMMUNICATIONS HOLDINGS, INC.","ticker":"CCOI","filing_date":"2026-06-15","form":"8-K","submitted_at":null,"items":[{"id":7566,"accession_number":"0001104659-26-074046","item_number":"1.01","item_title":"Entry into a Material Definitive Agreement.","event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.45,"reasoning":"This disclosure describes entry into a First Supplemental Indenture amending the terms of existing debt, including relaxation of the secured leverage ratio covenant (4.00:1.00 to 4.75:1.00), mandatory use of data center sale proceeds for debt repurchase, and restrictions on IRU transfers. While Item 1.01 typically covers M\u0026A activity, this is fundamentally a material debt restructuring and covenant amendment that would affect investor assessment of financial flexibility and leverage constraints. The event is material but does not fit the M\u0026A taxonomy precisely—it is better classified as a material debt covenant modification or restructuring.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-06-15T20:23:06.741991+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":7566,"accession_number":"0001104659-26-074046","item_number":"1.01","item_title":"Entry into a Material Definitive Agreement.","event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.45,"reasoning":"This disclosure describes entry into a First Supplemental Indenture amending the terms of existing debt, including relaxation of the secured leverage ratio covenant (4.00:1.00 to 4.75:1.00), mandatory use of data center sale proceeds for debt repurchase, and restrictions on IRU transfers. While Item 1.01 typically covers M\u0026A activity, this is fundamentally a material debt restructuring and covenant amendment that would affect investor assessment of financial flexibility and leverage constraints. The event is material but does not fit the M\u0026A taxonomy precisely—it is better classified as a material debt covenant modification or restructuring.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-06-15T20:23:06.741991+00:00","company_name":"COGENT COMMUNICATIONS HOLDINGS, INC.","ticker":"CCOI","filing_date":"2026-06-15"}]}