{"filing":{"accession_number":"0001660280-26-000039","cik":"0001660280","ticker":"TENB","company_name":"Tenable Holdings, Inc.","form":"8-K","filing_date":"2026-09-15","report_date":"2026-09-10","primary_document":"tenb-20260910.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1660280/000166028026000039/tenb-20260910.htm"},"events":[{"id":33637,"run_id":30939,"accession_number":"0001660280-26-000039","anchor_item_number":"2.03","event_type":"debt_issuance","event_domain":"financial","is_material":true,"confidence":0.95,"summary":"Tenable completed a private offering of $725 million aggregate principal amount of 0.25% Convertible Senior Notes due 2031 on September 15, 2026, pursuant to an indenture with U.S. Bank Trust Company. The notes are convertible into 17.8–25.0 million shares of common stock and were offered to qualified institutional buyers under Rule 144A and Section 4(a)(2). Net proceeds of approximately $705.6 million will be used to repay existing term loans, fund share repurchases, capped call transactions, and general corporate purposes.","company_name":"Tenable Holdings, Inc.","ticker":"TENB","filing_date":"2026-09-15","form":"8-K","submitted_at":null,"items":[{"id":37140,"accession_number":"0001660280-26-000039","item_number":"1.01","item_title":"Entry into a Material Definitive Agreement.","event_type":"debt_issuance","event_domain":"financial","is_material":true,"confidence":0.95,"reasoning":"Tenable completed a private offering of $800 million aggregate principal amount of 0.25% Convertible Senior Notes due 2031 on September 15, 2026, pursuant to an indenture with U.S. Bank Trust Company. This is a material creation of a direct financial obligation—a debt issuance—disclosed under Item 1.01 (Entry into a Material Definitive Agreement). The filing details the terms, conversion features, redemption provisions, and covenants governing the Notes, which are general senior unsecured obligations of the Company.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-09-15T20:27:50.618256+00:00","company_name":"","ticker":null,"filing_date":""},{"id":37141,"accession_number":"0001660280-26-000039","item_number":"1.02","item_title":"Termination of a Material Definitive Agreement.","event_type":"debt_issuance","event_domain":"financial","is_material":true,"confidence":0.85,"reasoning":"Item 1.02 references Item 1.01 (Termination of a Material Definitive Agreement), but the substantive disclosure in the exhibits concerns Tenable's $725 million offering of convertible senior notes due 2031, with pricing details, conversion terms, and use of proceeds. While the Item 1.02 caption suggests a termination, the actual material event disclosed is the issuance of new debt securities. The exhibits document the announcement and pricing of the convertible notes offering, making debt_issuance the primary event, though the termination of the prior credit facility (referenced in use of proceeds) is secondary to the new debt issuance itself.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-09-15T20:27:50.618256+00:00","company_name":"","ticker":null,"filing_date":""},{"id":37142,"accession_number":"0001660280-26-000039","item_number":"2.03","item_title":"Creation of Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement or a Registrant.","event_type":"debt_issuance","event_domain":"financial","is_material":true,"confidence":0.95,"reasoning":"Tenable announced the pricing and issuance of $725.0 million aggregate principal amount of 0.25% Convertible Senior Notes due 2031 in a private placement to qualified institutional buyers. This represents the creation of a direct financial obligation through debt issuance. The filing explicitly references Item 2.03 (Creation of Direct Financial Obligation), and the exhibits detail the terms, pricing, conversion features, and use of proceeds from this material debt offering.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-09-15T20:27:50.618256+00:00","company_name":"","ticker":null,"filing_date":""},{"id":37143,"accession_number":"0001660280-26-000039","item_number":"3.02","item_title":"Unregistered Sales of Equity Securities.","event_type":"dilutive_issuance","event_domain":"financial","is_material":true,"confidence":0.95,"reasoning":"Tenable conducted a private placement of $725 million in convertible senior notes to qualified institutional buyers under Rule 144A and Section 4(a)(2), with the notes convertible into 17.8–25.0 million shares of common stock. This is a classic dilutive issuance of unregistered equity securities (via convertible debt) that will increase share count upon conversion, disclosed under Item 3.02 with explicit reference to Section 4(a)(2) and Rule 144A exemptions.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-09-15T20:27:50.618256+00:00","company_name":"","ticker":null,"filing_date":""},{"id":37144,"accession_number":"0001660280-26-000039","item_number":"8.01","item_title":"Other Events.","event_type":"debt_issuance","event_domain":"financial","is_material":true,"confidence":0.95,"reasoning":"Tenable announced the pricing of $725.0 million of 0.25% Convertible Senior Notes due 2031 in a private placement to qualified institutional buyers. This represents the creation of a new direct financial obligation—a material debt issuance. The filing discloses specific terms (interest rate, maturity date, conversion price, net proceeds of approximately $705.6 million), intended use of proceeds (repaying existing term loans, share repurchases, capped call transactions, and general corporate purposes), and conversion mechanics. This is a core debt_issuance event distinct from equity dilution or M\u0026A activity.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-09-15T20:27:50.618256+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":37140,"accession_number":"0001660280-26-000039","item_number":"1.01","item_title":"Entry into a Material Definitive Agreement.","event_type":"debt_issuance","event_domain":"financial","is_material":true,"confidence":0.95,"reasoning":"Tenable completed a private offering of $800 million aggregate principal amount of 0.25% Convertible Senior Notes due 2031 on September 15, 2026, pursuant to an indenture with U.S. Bank Trust Company. This is a material creation of a direct financial obligation—a debt issuance—disclosed under Item 1.01 (Entry into a Material Definitive Agreement). The filing details the terms, conversion features, redemption provisions, and covenants governing the Notes, which are general senior unsecured obligations of the Company.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-09-15T20:27:50.618256+00:00","company_name":"Tenable Holdings, Inc.","ticker":"TENB","filing_date":"2026-09-15"},{"id":37141,"accession_number":"0001660280-26-000039","item_number":"1.02","item_title":"Termination of a Material Definitive Agreement.","event_type":"debt_issuance","event_domain":"financial","is_material":true,"confidence":0.85,"reasoning":"Item 1.02 references Item 1.01 (Termination of a Material Definitive Agreement), but the substantive disclosure in the exhibits concerns Tenable's $725 million offering of convertible senior notes due 2031, with pricing details, conversion terms, and use of proceeds. While the Item 1.02 caption suggests a termination, the actual material event disclosed is the issuance of new debt securities. The exhibits document the announcement and pricing of the convertible notes offering, making debt_issuance the primary event, though the termination of the prior credit facility (referenced in use of proceeds) is secondary to the new debt issuance itself.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-09-15T20:27:50.618256+00:00","company_name":"Tenable Holdings, Inc.","ticker":"TENB","filing_date":"2026-09-15"},{"id":37142,"accession_number":"0001660280-26-000039","item_number":"2.03","item_title":"Creation of Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement or a Registrant.","event_type":"debt_issuance","event_domain":"financial","is_material":true,"confidence":0.95,"reasoning":"Tenable announced the pricing and issuance of $725.0 million aggregate principal amount of 0.25% Convertible Senior Notes due 2031 in a private placement to qualified institutional buyers. This represents the creation of a direct financial obligation through debt issuance. The filing explicitly references Item 2.03 (Creation of Direct Financial Obligation), and the exhibits detail the terms, pricing, conversion features, and use of proceeds from this material debt offering.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-09-15T20:27:50.618256+00:00","company_name":"Tenable Holdings, Inc.","ticker":"TENB","filing_date":"2026-09-15"},{"id":37143,"accession_number":"0001660280-26-000039","item_number":"3.02","item_title":"Unregistered Sales of Equity Securities.","event_type":"dilutive_issuance","event_domain":"financial","is_material":true,"confidence":0.95,"reasoning":"Tenable conducted a private placement of $725 million in convertible senior notes to qualified institutional buyers under Rule 144A and Section 4(a)(2), with the notes convertible into 17.8–25.0 million shares of common stock. This is a classic dilutive issuance of unregistered equity securities (via convertible debt) that will increase share count upon conversion, disclosed under Item 3.02 with explicit reference to Section 4(a)(2) and Rule 144A exemptions.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-09-15T20:27:50.618256+00:00","company_name":"Tenable Holdings, Inc.","ticker":"TENB","filing_date":"2026-09-15"},{"id":37144,"accession_number":"0001660280-26-000039","item_number":"8.01","item_title":"Other Events.","event_type":"debt_issuance","event_domain":"financial","is_material":true,"confidence":0.95,"reasoning":"Tenable announced the pricing of $725.0 million of 0.25% Convertible Senior Notes due 2031 in a private placement to qualified institutional buyers. This represents the creation of a new direct financial obligation—a material debt issuance. The filing discloses specific terms (interest rate, maturity date, conversion price, net proceeds of approximately $705.6 million), intended use of proceeds (repaying existing term loans, share repurchases, capped call transactions, and general corporate purposes), and conversion mechanics. This is a core debt_issuance event distinct from equity dilution or M\u0026A activity.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-09-15T20:27:50.618256+00:00","company_name":"Tenable Holdings, Inc.","ticker":"TENB","filing_date":"2026-09-15"}]}