Barclays PLC Boosts Stake in Tenable Holdings, Inc.

Institutional investor increases holdings in cybersecurity firm by nearly 99%

Published on Mar. 10, 2026

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Barclays PLC has significantly increased its stake in Tenable Holdings, Inc. (NASDAQ:TENB), a leading cybersecurity company, by purchasing an additional 833,125 shares in the third quarter. This represents a 98.9% increase in Barclays' holdings, bringing its total ownership to 1,675,871 shares or approximately 1.40% of Tenable's outstanding stock.

Why it matters

Tenable is a prominent player in the growing cybersecurity industry, providing vulnerability management and threat exposure assessment solutions to organizations. Barclays' increased investment signals the institutional investor's confidence in Tenable's business model and growth potential, as the company continues to address the evolving cyber risks faced by its clients.

The details

According to a recent 13F filing with the Securities and Exchange Commission, Barclays PLC boosted its stake in Tenable Holdings, Inc. during the third quarter of the year. The institutional investor now owns 1,675,871 shares of the company's stock, up from 842,746 shares held previously. This substantial increase of 833,125 shares, or 98.9%, is a vote of confidence in Tenable's market position and future prospects.

  • Barclays PLC increased its stake in Tenable Holdings, Inc. during the third quarter of 2026.

The players

Barclays PLC

A multinational investment bank and financial services company headquartered in London, United Kingdom.

Tenable Holdings, Inc.

A cybersecurity company that provides vulnerability management and continuous threat exposure assessment solutions to organizations.

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The takeaway

Barclays' substantial investment in Tenable Holdings, Inc. reflects the institutional investor's confidence in the cybersecurity firm's growth potential and ability to navigate the evolving threat landscape. This development underscores the increasing importance of robust cybersecurity solutions as organizations seek to protect their digital assets and mitigate the risks of cyber attacks.