SCHEDULE: BlackRock Discloses 10.3% Stake in Tenable Holdings

BlackRock, Inc. has filed a Schedule 13G, reporting beneficial ownership of 10.3% of Tenable Holdings Inc.'s common stock as of May 31, 2026.

Summary

• BlackRock, Inc. has officially disclosed its beneficial ownership of Tenable Holdings Inc. common stock.
• As of May 31, 2026, BlackRock beneficially owns 11,304,271 shares, representing 10.3% of the class.
• This filing is an amendment (Amendment No. 2) to a previous Schedule 13G.
• BlackRock, Inc. is a Delaware-incorporated entity.
• The filing indicates that BlackRock has sole voting power over 11,114,148 shares and sole dispositive power over 11,304,271 shares.
• No single person's interest in Tenable Holdings Inc. exceeds five percent of the total outstanding common shares, according to BlackRock.
• The filing also includes a Power of Attorney document, dated January 21, 2025, appointing several individuals to execute necessary filings on behalf of BlackRock, Inc.
• Exhibit 99 lists various subsidiaries and affiliates of BlackRock that may be involved in beneficial ownership, with BlackRock Fund Advisors noted as beneficially owning 5% or greater of the outstanding shares of the security class being reported.

Sentiment

Score: 6

Explanation: StockSavvy.ai views this as a neutral to slightly positive filing, as it confirms a significant institutional investor's substantial stake, indicating confidence, but does not provide new operational or financial performance data for Tenable Holdings Inc. itself.

Positives

• BlackRock, a significant institutional investor, has a substantial stake in Tenable Holdings Inc., indicating confidence in the company's prospects.
• The clear disclosure of ownership percentage (10.3%) provides transparency to the market.
• The filing confirms that BlackRock's ownership is managed through various business units, with specific entities like BlackRock Fund Advisors holding a significant portion.

Negatives

• The filing does not contain any negative financial results or operational challenges for Tenable Holdings Inc. itself; it solely reports BlackRock's ownership stake.

Risks

• Potential for future changes in BlackRock's ownership stake, which could impact Tenable Holdings Inc.'s stock price and market dynamics.
• The concentration of ownership among a few entities within BlackRock could lead to coordinated actions that might affect the company.

Future Outlook

This filing is a disclosure of current ownership and does not contain forward-looking statements or guidance from Tenable Holdings Inc. itself. BlackRock's future outlook for its investment is not detailed.

Management Comments

• "In accordance with SEC Release No. 34-39538 (January 12, 1998), this Schedule 13G reflects the securities beneficially owned, or deemed to be beneficially owned, by certain business units (collectively, the 'Reporting Business Units') of BlackRock, Inc. and its subsidiaries and affiliates. It does not include securities, if any, beneficially owned by other business units whose beneficial ownership of securities are disaggregated from that of the Reporting Business Units in accordance with such release."
• "Various persons have the right to receive or the power to direct the dividends from, or the proceeds from the sale of, the common stock of TENABLE HOLDINGS INC. No one person's interest in the common stock of TENABLE HOLDINGS INC is more than five percent of the total outstanding common shares."
• "By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under 240.14a-11."

Industry Context

StockSavvy.ai notes that this Schedule 13G filing by BlackRock, a major global asset manager, signifies a significant institutional holding in Tenable Holdings Inc., a prominent player in the cybersecurity market. Such filings often indicate sustained investor interest and can influence market perception of the company's stability and growth potential within the competitive cybersecurity landscape.

Stakeholder Impact

• Shareholders: Increased transparency regarding institutional ownership, potentially influencing investor sentiment and stock liquidity.
• Management of Tenable Holdings Inc.: May face increased engagement from BlackRock regarding corporate strategy and governance.
• Competitors: Awareness of a major asset manager's significant investment in a key player in the cybersecurity market.

Next Steps

• Monitor future filings by BlackRock for any changes in its ownership stake in Tenable Holdings Inc.
• Observe market reaction to this disclosure, particularly any impact on Tenable Holdings Inc.'s stock price.

Key Dates

Keywords

Tenable Holdings, BlackRock, Schedule 13G, SEC Filing, Institutional Investor, Common Stock, Beneficial Ownership, Cybersecurity