SEC Filing Summary for Ross Fredrick M. Jr. - Custom Truck One Source, Inc.

This filing details transactions made by Ross Fredrick M. Jr. on April 1, 2026. In non-derivative transactions, 131,250 shares of Common Stock were acquired (transaction code "A"), and 39,441 shares were disposed of at a price of $6.62 per share (transaction code "D", subject to tax withholding). Following these transactions, 579,629 shares are directly owned. Additionally, 2,000,000 shares of Common Stock are held indirectly through Frederick M. Ross, Jr. Holding Company, LLC. Derivative transactions include the disposal of 87,500 Restricted Stock Units (RSUs) vesting in installments starting April 1, 2024, and 43,750 RSUs vesting in installments starting April 1, 2026. An acquisition of 175,000 RSUs vesting in installments starting April 1, 2027, is also reported. All RSUs are contingent rights to receive one share of common stock upon vesting.