Tenable Holdings, Inc. — Form 8-K Summary
Reporting date: October 5, 2026 (filed October 6, 2026). The filing reports a board appointment and related compensation; it does not report quarterly or annual financial results.
Business context and material change
Tenable increased its Board from 10 to 11 directors and appointed Charles Bell effective October 5, 2026. Bell is a Class III director serving until the 2027 Annual Meeting and joins the Cybersecurity Risk Management Committee. The Board cited his experience in enterprise software, cybersecurity, cloud infrastructure, and public-company governance.
Financial and compensation information
- The filing provides no revenue, profit, cash flow, margin, debt, liquidity, or other operating performance metrics.
- Bell received 10,386 restricted stock units, vesting in three equal annual installments, subject to continued service and specified acceleration provisions.
- For 2026, prorated for his service, his approved retainers are $35,000 for Board service and $5,000 for Cybersecurity Committee service. Payment is subject to continued service through applicable payment dates.
Guidance, risks, contingencies, and other disclosures
No financial guidance, outlook, or business risk update is provided. Tenable stated that it is unaware of any transaction involving Bell requiring disclosure under Item 404(a) of Regulation S-K; the filing also reports no arrangement or understanding pursuant to which he was selected and no family relationship with Tenable directors or executive officers. Bell entered into Tenable’s standard indemnification agreement.
Investor verification points
- Confirm the terms and vesting conditions of the 10,386 RSU grant and any applicable accelerated vesting provisions.
- Verify the prorated 2026 Board and committee retainers and the service conditions attached to payment.
- Review Exhibit 99.1, the October 6, 2026 press release, for any additional appointment details.