Tenable Holdings Inc (TENB)

New joint research by SentinelOne and Tenable reveals that cyber attackers, including nation-state and criminal groups, are increasingly targeting specific vendor ecosystems and attack surfaces of edge devices rather than individual vulnerabilities (CVEs). This approach allows attackers to move faster than standard patch cycles, with exploitation timelines often outpacing the five-month median remediation time for organizations. The research highlights the critical need for defenders to prioritize based on "Persistently Targeted Vendors" and integrate exposure data with runtime detection to strengthen their security posture against these evolving threats.

Tenable Holdings CFO Matthew Brown converted 14,544 restricted stock units (RSUs) into common stock on August 21, 2026. Concurrently, the company withheld 7,400 shares at $34.38 each to cover tax obligations related to the RSU settlement. Following these transactions, Brown directly owns 47,010 shares and retains 174,536 RSUs, which are set to vest quarterly over four years starting November 21, 2025.

Tenable Holdings, Inc. (TENB) Co-Chief Executive Officer Mark C. Thurmond reported insider equity activity where multiple tranches of Performance Restricted Stock Units (PRSUs) and Restricted Stock Units (RSUs) converted into common stock. The filing on August 24, 2026, shows the exercise or conversion of 25,369 shares, with 12,268 shares withheld for tax obligations at a price of $33.94 per share.

Tenable Holdings, Inc. (TENB) Chief Financial Officer Matthew Charles Brown exercised 14,544 Restricted Stock Units (RSUs) on August 21, 2026, converting them into common stock. Concurrently, 7,400 shares were withheld by Tenable at $34.38 per share to cover income tax obligations, a process the company clarifies does not constitute a sale. After these transactions, Brown directly holds 174,536 RSUs, which are set to vest in quarterly installments over four years starting November 21, 2025.

Tenable Holdings (TENB) Co-Chief Executive Officer Stephen A. Vintz settled various Performance Restricted Stock Units (PRSUs) and Restricted Stock Units (RSUs) on August 24, 2026, converting 27,413 shares into common stock. The company withheld 13,121 shares at $33.94 each to cover tax obligations, which does not constitute a sale. After these transactions, Vintz holds 624,816 shares of common stock directly, along with remaining PRSUs and RSUs.