{"filing":{"accession_number":"0001193125-26-354111","cik":"0000015615","ticker":"MTZ","company_name":"MASTEC INC","form":"8-K","filing_date":"2026-08-17","report_date":"2026-08-17","primary_document":"d299977d8k.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/15615/000119312526354111/d299977d8k.htm"},"events":[{"id":28288,"run_id":25863,"accession_number":"0001193125-26-354111","anchor_item_number":"2.03","event_type":"debt_issuance","event_domain":"financial","is_material":true,"confidence":0.95,"summary":"MasTec completed a public offering of $650.0 million aggregate principal amount of 5.850% senior unsecured notes due 2036 on August 17, 2026. This represents a material creation of a direct financial obligation with a 10-year maturity, disclosed across Items 1.01 and 2.03.","company_name":"MASTEC INC","ticker":"MTZ","filing_date":"2026-08-17","form":"8-K","submitted_at":null,"items":[{"id":30182,"accession_number":"0001193125-26-354111","item_number":"1.01","item_title":null,"event_type":"debt_issuance","event_domain":"financial","is_material":true,"confidence":0.98,"reasoning":"MasTec completed a public offering of $650.0 million aggregate principal amount of 5.850% senior unsecured notes due 2036 on August 17, 2026. This is a material creation of a direct financial obligation under Item 1.01, evidenced by the detailed disclosure of the indenture terms, interest rate, maturity date, and subordination provisions. The magnitude ($650 million) and long-term nature (10-year maturity) make this material to investors assessing the company's capital structure and financial obligations.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-08-17T20:24:41.851045+00:00","company_name":"","ticker":null,"filing_date":""},{"id":30183,"accession_number":"0001193125-26-354111","item_number":"2.03","item_title":null,"event_type":"debt_issuance","event_domain":"financial","is_material":true,"confidence":0.85,"reasoning":"Item 2.03 explicitly addresses creation of a direct financial obligation. The filing incorporates by reference Item 1.01 (Business Combinations), which typically discloses material M\u0026A activity that may involve debt financing or assumption of obligations. Without access to Item 1.01 details, the most probable classification is debt_issuance, as Item 2.03 is the standard vehicle for disclosing new debt obligations, credit facilities, or debt tender offers.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-08-17T20:24:41.851045+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":30182,"accession_number":"0001193125-26-354111","item_number":"1.01","item_title":null,"event_type":"debt_issuance","event_domain":"financial","is_material":true,"confidence":0.98,"reasoning":"MasTec completed a public offering of $650.0 million aggregate principal amount of 5.850% senior unsecured notes due 2036 on August 17, 2026. This is a material creation of a direct financial obligation under Item 1.01, evidenced by the detailed disclosure of the indenture terms, interest rate, maturity date, and subordination provisions. The magnitude ($650 million) and long-term nature (10-year maturity) make this material to investors assessing the company's capital structure and financial obligations.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-08-17T20:24:41.851045+00:00","company_name":"MASTEC INC","ticker":"MTZ","filing_date":"2026-08-17"},{"id":30183,"accession_number":"0001193125-26-354111","item_number":"2.03","item_title":null,"event_type":"debt_issuance","event_domain":"financial","is_material":true,"confidence":0.85,"reasoning":"Item 2.03 explicitly addresses creation of a direct financial obligation. The filing incorporates by reference Item 1.01 (Business Combinations), which typically discloses material M\u0026A activity that may involve debt financing or assumption of obligations. Without access to Item 1.01 details, the most probable classification is debt_issuance, as Item 2.03 is the standard vehicle for disclosing new debt obligations, credit facilities, or debt tender offers.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-08-17T20:24:41.851045+00:00","company_name":"MASTEC INC","ticker":"MTZ","filing_date":"2026-08-17"}]}