SEAWELL A BROOKE 4

What Happened

Seawell A. Brooke, a director of Tenable Holdings, had derivative settlement activity and received an RSU award tied to Tenable common stock on May 13, 2026. The filing reports: a grant/award of 9,718 restricted stock units (RSUs) at $0.00 (code A), and derivative exercise/conversion entries of 6,062 shares acquired and 6,062 shares disposed (both at $0.00, code M). As reported, the net change from these entries is an increase of 9,718 contingent share units; the transactions show $0.00 as the price/consideration because these were RSU/derivative settlements, not open‑market cash trades.

Key Details

• Transaction date: May 13, 2026; Form 4 filed May 15, 2026 (appears timely).
• Reported prices: $0.00 for all entries (award/settlement reporting).
• Transaction codes: A = Grant/Award (9,718 RSUs); M = Exercise/conversion of a derivative (6,062 acquired and 6,062 disposed).
• Net reported change: +9,718 RSU units (reported as acquired).
• Shares owned after transaction: not specified in the provided summary of the filing.
• Footnotes of note:
  • F1: Reporting person acts as trustee of the Alexander Brooke Seawell Revocable Trust.
  • F2: Each RSU equals a contingent right to one share of common stock.
  • F3: 100% of the shares underlying the RSUs vested as of May 13, 2026.
  • F4: (Relates to vesting terms for certain RSUs) 100% vest on the earlier of May 13, 2027 or the next annual meeting, subject to service and acceleration provisions.

Context

• RSUs and derivative settlements reported at $0.00 typically reflect compensation awards or internal settlement mechanics rather than open‑market purchases or sales; they do not necessarily signal a personal cash investment or a market opinion.
• Code M denotes exercise/conversion of a derivative instrument. The simultaneous acquired and disposed M entries at $0.00 likely reflect internal settlement/processing of the derivative position; the filing does not show a cash sale on the open market.
• For retail investors: awards and vesting are common for directors and employees. Purchases (open‑market buys) are generally more indicative of personal bullishness than grants or vesting events.