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    SEC Form DEFA14A filed by Tenable Holdings Inc.

    4/2/26 4:15:37 PM ET
    $TENB
    Computer Software: Prepackaged Software
    Technology
    Get the next $TENB alert in real time by email
    DEFA14A 1 tenable-2026defa.htm DEFA14A Document

    UNITED STATES
    SECURITIES AND EXCHANGE COMMISSION
    Washington, D.C. 20549
    SCHEDULE 14A
    Proxy Statement Pursuant to Section 14(a) of the
    Securities Exchange Act of 1934

    Filed by the Registrant    ý
    Filed by a Party other than the Registrant    ¨
    Check the appropriate box:
    ¨    Preliminary Proxy Statement
    ¨    Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
    ¨    Definitive Proxy Statement
    ý    Definitive Additional Materials
    ¨    Soliciting Material Pursuant to § 240.14a-12
    Tenable Holdings, Inc.
    (Name of Registrant as Specified In Its Charter)
    (Name of Person(s) Filing Proxy Statement, if other than the Registrant)
    Payment of Filing Fee (Check the appropriate box)
    ý    No fee required.
    ¨    Fee paid previously with preliminary materials.
    ¨    Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11.







    tenb-naaproof_pagex1.jpg



    tenb-naaproof_pagex2.jpg


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