Anschutz Barron 4

What Happened

• Anschutz Barron, Tenable's Chief Accounting Officer, had 2,031 restricted stock units (RSUs) convert/vest on April 16, 2026, resulting in the acquisition of 2,031 shares. Of those, 972 shares were withheld to satisfy tax withholding at $19.03 per share (value reported $18,497). The filing also notes acquisition of 820 shares under the company's Employee Stock Purchase Plan (ESPP). The RSUs were 100% vested as of April 16, 2026.
• This was not an open-market sale — the 972-share disposition represents tax withholding/net settlement of RSUs rather than a sale. Net from the RSU vesting, Anschutz received 1,059 shares (2,031 − 972), and together with 820 ESPP shares the net increase in holdings from these events is 1,879 shares.

Key Details

• Transaction date: April 16, 2026.
• Reported entries: Exercise/conversion of derivative (M) — 2,031 shares acquired at $0.00; Tax withholding/payment (F) — 972 shares withheld at $19.03 (value $18,497); an M entry also lists 2,031 shares as derivative-disposed (reflecting the conversion/settlement mechanics).
• Footnotes: F1 — 820 ESPP shares acquired (exempt under Rule 16b-3); F2 — 972 shares withheld for tax withholding (not a sale); F3 — each RSU equals one share; F4 — 100% of RSUs vested on 4/16/2026.
• Shares owned after the transactions: not specified in the provided filing excerpt.
• Timeliness: Filing date 2026-04-17 for transactions on 2026-04-16 — appears timely (Form 4s are generally due within two business days).

Context

• This was an RSU vesting/net-settlement event (exercise/conversion), not a market sale; tax-withheld shares are routine and do not signal an open-market disposition. The ESPP acquisition is a separate, exempt purchase under the company plan. No indication in this filing of a 10% owner or a 10b5-1 plan.