TENB: Company disclosure

Item 7.01 Regulation FD Disclosure. On May 21, 2026, Tenable Holdings, Inc. (the "Company") hosted an Investor Day event, where members of the Company’s senior management presented to attendees regarding the Company’s business and long-term strategy, which was webcast live on the Company’s website. A copy of the materials used during the presentation is furnished as Exhibit 99.1 to this Current Report. The materials and a webcast replay of the presentation were made available at the “Investor Events” section of the Company's investor relations website at https://investors.tenable.com at the start of the live presentation. The information set forth in this Item 7.01, including the presentation slides attached hereto as Exhibit 99.1, is being furnished pursuant to Item 7.01 and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section, and it shall not be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or under the Exchange Act, whether made before or after the date hereof, except as expressly provided by specific reference in such a filing. Item 9.01 Financial Statements and Exhibits. (d) Exhibits Exhibit Number Description 99.1 Tenable's Investor Day Presentation, dated May 21, 2026 101.SCH Inline XBRL Taxonomy Extension Schema Document. 101.LAB Inline XBRL Taxonomy Extension Label Linkbase Document. 101.PRE Inline XBRL Taxonomy Extension Presentation Linkbase Document. 104 The cover page from Tenable's 8-K filed on May 21, 2026, formatted in Inline XBRL. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf