NELSON GEORGIA R 4

What Happened

• Georgia R. Nelson, a director of Custom Truck One Source, converted/exercised 26,859 derivative units into common shares on March 31, 2026 (transaction code M). Those same 26,859 derivative units are also reported as disposed on March 31, 2026 (recorded at $0). On April 1, 2026 she was granted/awarded 19,225 restricted stock units (transaction code A). All transactions show a reported price of $0 and total reported cash value of $0.

Key Details

• Transaction dates and codes: 2026-03-31 (M) — 26,859 shares acquired via exercise/conversion; 2026-03-31 (M) — 26,859 shares disposed (derivative) at $0; 2026-04-01 (A) — 19,225 RSUs awarded at $0.
• Reported dollar amounts: all transactions show $0 per share and $0 total.
• Shares owned after transaction: not specified in the details provided.
• Filing date / accession #: Form 4 filed with accession 0001213900-26-039384 on 2026-04-02.
• Notable footnotes:
  • F1: Each restricted stock unit (RSU) represents a contingent right to receive one share of common stock.
  • F2: The restricted stock units (26,859) vested in full on March 31, 2026.
  • F3: The 19,225 RSUs granted will vest on March 31, 2027 and have no expiration date.

Context

• The filing shows conversion/exercise of derivative securities and a contemporaneous disposal entry for the same 26,859 units; the form itself does not state the reason for the disposal. Such same-day dispositions on exercise/conversion filings can reflect settlement mechanics (for example, withholding to satisfy taxes) but this filing does not specify a tax withholding code.
• The April 1 entry is an RSU award (future vesting on 3/31/2027), which is an award rather than an open-market purchase or sale and does not by itself indicate a buy or sell signal.