tenb-20260521

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

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FORM 8-K

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CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of report (Date of earliest event reported): May 21, 2026

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TENABLE HOLDINGS, INC.

(Exact name of registrant as specified in its charter)

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Delaware	001-38600	47-5580846
(State or other jurisdiction of incorporation or organization)	(Commission File Number)	(I.R.S. Employer Identification Number)

6100 Merriweather Drive, Columbia, Maryland, 21044

(Address of principal executive offices, including zip code)

(410) 872-0555

(Registrant’s telephone number, including area code)

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Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:


☐			Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐			Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐			Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐			Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:


Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, par value $0.01 per share	TENB	The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

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 by the undersigned hereunto duly authorized.



		TENABLE HOLDINGS, INC.

Date:	May 21, 2026	By:	/s/ Michelle VonderHaar
			Michelle VonderHaar
			Chief Legal Officer and Corporate Secretary

Tenable Holdings Inc. filed SEC Form 8-K: Regulation FD Disclosure, Financial Statements and Exhibits