0001213900-24-029525.txt : 20240402 0001213900-24-029525.hdr.sgml : 20240402 20240402200029 ACCESSION NUMBER: 0001213900-24-029525 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20240331 FILED AS OF DATE: 20240402 DATE AS OF CHANGE: 20240402 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: ECP ControlCo, LLC CENTRAL INDEX KEY: 0001707921 ORGANIZATION NAME: STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-38186 FILM NUMBER: 24816478 BUSINESS ADDRESS: STREET 1: 40 BEECHWOOD ROAD CITY: SUMMIT STATE: NJ ZIP: 07901 BUSINESS PHONE: (973) 671-6100 MAIL ADDRESS: STREET 1: 40 BEECHWOOD ROAD CITY: SUMMIT STATE: NJ ZIP: 07901 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Energy Capital Partners Management, LP CENTRAL INDEX KEY: 0001815150 ORGANIZATION NAME: STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-38186 FILM NUMBER: 24816476 BUSINESS ADDRESS: STREET 1: 51 JOHN F. KENNEDY PARKWAY STREET 2: SUITE 200 CITY: SHORT HILLS STATE: NJ ZIP: 07078 BUSINESS PHONE: (973) 671-6100 MAIL ADDRESS: STREET 1: 51 JOHN F. KENNEDY PARKWAY STREET 2: SUITE 200 CITY: SHORT HILLS STATE: NJ ZIP: 07078 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: ECP Management GP, LLC CENTRAL INDEX KEY: 0001815147 ORGANIZATION NAME: STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-38186 FILM NUMBER: 24816477 BUSINESS ADDRESS: STREET 1: 51 JOHN F. KENNEDY PARKWAY STREET 2: SUITE 200 CITY: SHORT HILLS STATE: NJ ZIP: 07078 BUSINESS PHONE: (973) 671-6100 MAIL ADDRESS: STREET 1: 51 JOHN F. KENNEDY PARKWAY STREET 2: SUITE 200 CITY: SHORT HILLS STATE: NJ ZIP: 07078 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Custom Truck One Source, Inc. CENTRAL INDEX KEY: 0001709682 STANDARD INDUSTRIAL CLASSIFICATION: SERVICES-EQUIPMENT RENTAL & LEASING, NEC [7359] ORGANIZATION NAME: 07 Trade & Services IRS NUMBER: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 7701 INDEPENDENCE AVENUE CITY: KANSAS CITY STATE: MO ZIP: 64125 BUSINESS PHONE: (816) 241-4888 MAIL ADDRESS: STREET 1: 7701 INDEPENDENCE AVENUE CITY: KANSAS CITY STATE: MO ZIP: 64125 FORMER COMPANY: FORMER CONFORMED NAME: NESCO HOLDINGS, INC. DATE OF NAME CHANGE: 20190730 FORMER COMPANY: FORMER CONFORMED NAME: Capitol Investment Corp. IV DATE OF NAME CHANGE: 20170619 4 1 ownership.xml X0508 4 2024-03-31 0 0001709682 Custom Truck One Source, Inc. CTOS 0001707921 ECP ControlCo, LLC 40 BEECHWOOD ROAD, SUMMIT, NJ 07901 1 0 1 0 0001815147 ECP Management GP, LLC 40 BEECHWOOD ROAD, SUMMIT, NJ 07901 1 0 1 0 0001815150 Energy Capital Partners Management, LP 40 BEECHWOOD ROAD, SUMMIT, NJ 07901 1 0 1 0 0 Common Stock 2024-03-31 4 M 0 18640 0 A 18640 I See footnote Common Stock 25738988 I See footnotes Restricted Stock Unit 2024-03-31 4 M 0 18640 0 D Common Stock 18640 0 I See footnote Restricted Stock Unit 2024-04-01 4 A 0 22218 0 A Common Stock 22218 22218 I See footnote Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock. Represents securities held directly by Energy Capital Partners Management, LP ("ECP Management"). ECP Management GP, LLC is the general partner of ECP Management and may be deemed to share beneficial ownership of the securities held by ECP Management. ECP ControlCo, LLC ("ECP ControlCo") is the sole member of ECP Management GP, LLC. As a result, ECP ControlCo may be deemed to share beneficial ownership of the securities beneficially owned by ECP Management GP, LLC. The managing members of ECP ControlCo are Douglas Kimmelman, Andrew Singer, Peter Labbat, Tyler Reeder and Rahman D'Argenio all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo. Each such individual disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein. Includes 21,238,988 shares held by NESCO Holdings, LP and 4,500,000 shares held by ECP Cardinal Holdings, LP ("ECP Cardinal"). The general partner of each of ECP Cardinal and NESCO Holdings, LP is NESCO Holdings GP, LLC. ECP Starlight Guarantor (Public), LP ("ECP Starlight") and Energy Capital Partners III (NESCO Co-Invest), LP are the sole members of NESCO Holdings GP, LLC. ECP ControlCo is the sole member of Energy Capital Partners III, LLC, which is the general partner of (i) Energy Capital Partners GP III, LP, which is the general partner of each of Energy Capital Partners III, LP, Energy Capital Partners III-A, LP, Energy Capital Partners III-B, LP, Energy Capital Partners III-C, LP, and Energy Capital Partners III-D, LP (together, the "ECP III Funds"), which are the sole members of ECP Starlight Public GP, LLC, which is the general partner of ECP Starlight, and (ii) Energy Capital Partners GP III Co-Investment (NESCO), LLC, which is the general partner of Energy Capital Partners III (NESCO Co-Invest), LP. As a result, each of the foregoing entities may be deemed to share beneficial ownership of the shares of Common Stock held by ECP Cardinal and NESCO Holdings, LP. The restricted stock units vested in full on March 31, 2024. The restricted stock units will vest on March 31, 2025 and have no expiration date. ECP ControlCo, LLC By: /s/ Rahman D'Argenio, Managing Member 2024-04-02 ECP Management GP, LLC By: ECP ControlCo, LLC, its sole member By: /s/ Rahman D'Argenio, Managing Member 2024-04-02 ECP ControlCo, LLC By: ECP Management GP, LLC, its general partner By: ECP ControlCo, LLC, its sole member By: /s/ Rahman D'Argenio, Managing Member 2024-04-02