Brown Matthew Charles 4

What Happened

• Matthew Charles Brown, Chief Financial Officer of Tenable Holdings (TENB), had 14,544 restricted stock units (RSUs) convert into common shares on May 21, 2026 (transaction code M). To satisfy tax withholding obligations (code F), 5,219 of those shares were withheld at $25.17/share (withheld value $131,362). Net shares delivered to Brown equal 14,544 − 5,219 = 9,325 shares (approx. $234,710 at $25.17/share). This was a vesting/settlement of RSUs rather than an open-market purchase or sale.

Key Details

• Transaction date: May 21, 2026; Form filed May 26, 2026 (check filing for timeliness if relevant).
• Converted/issued: 14,544 RSUs → 14,544 shares (exercise/conversion, code M).
• Tax withholding: 5,219 shares withheld (code F) at $25.17/share = $131,362 (not an open-market sale).
• Net shares received: 9,325 shares (approx. $235k at $25.17).
• Shares owned after transaction: not specified in the supplied excerpt of the filing.
• Footnotes: F1 clarifies withheld shares satisfy tax obligations and are not a sale; F2 notes each RSU equals a contingent right to one share; F3 shows these RSUs vest in 16 equal quarterly installments over 4 years starting Nov 21, 2025, subject to continued service and certain acceleration events.

Context

• This activity reflects RSU settlement (vesting) and a net-share issuance after tax withholding — a common executive compensation event and not a directional open-market buy or sell. Transaction codes: M = conversion/exercise of a derivative security (RSU → share); F = shares withheld to cover taxes. For retail investors, vested RSUs increase insider ownership but withholding does not indicate a sale-based liquidity event.