Rich Thomas R. 4

What Happened

• Rich Thomas, President — Rentals at Custom Truck One Source (CTOS), reported multiple restricted‑equity transactions on April 1, 2026. The filing shows he:
  • Acquired 75,000 shares through exercise/conversion of derivative awards (reported at $0.00 per share).
  • Was granted 100,000 restricted stock units (RSUs) (grant reported at $0.00 per share).
  • Had 22,538 shares withheld to satisfy tax obligations at $6.62 per share, a withholding value of $149,202.
  • The filing also reports conversion/disposition entries of 50,000 and 25,000 derivative units (each reported at $0.00).
• These transactions reflect RSU conversions/awards rather than open‑market purchases or sales; the only cash‑value movement reported was the tax withholding.

Key Details

• Transaction date(s): April 1, 2026. Filing date: April 3, 2026 (appears timely).
• Prices/values reported:
  • Withheld shares: 22,538 @ $6.62 = $149,202 (tax withholding, code F).
  • Other entries reported at $0.00 per share (derivative conversions/grant).
• Shares owned after the transaction: not specified in the supplied filing data.
• Footnotes of note:
  • F1: Each RSU represents a right to receive one share when settled.
  • F2: The 22,538 shares were withheld to satisfy tax obligations from RSU vesting.
  • F3–F5: The RSUs have multi‑year vesting schedules (some vesting beginning April 1, 2024; others beginning April 1, 2026 or 2027, with one tranche subject to milestone‑based partial acceleration).
• Transaction codes explained: M = exercise/conversion of derivative; A = grant/award; F = shares withheld to cover tax liability.

Context

• These are vesting/conversion and grant transactions involving RSUs. Withheld shares to cover taxes are a routine, administrative step (not an open‑market sale indicating a change in sentiment).
• The filing reports derivative conversions and a new RSU award; no cash purchase of shares or open‑market sale by the insider is shown.