ECP ControlCo, LLC - 30 Jan 2025 SCHEDULE 13D/A Report for Custom Truck One Source, Inc. Common Stock (CTOS)

Filing manager
ECP ControlCo, LLC
Reporting owner
ECP ControlCo, LLC
Security
Custom Truck One Source, Inc. Common Stock
Beneficially owned shares
0 shares
Ownership signal CIK-linked ownership evidence from parsed SEC filings. 2 signals
Large-stake signal

Form

SCHEDULE 13D/A

Active or control-oriented beneficial ownership filing.

Ownership

0%

Beneficial ownership of this reported class.

Shares

0 shares

Shares beneficially owned as disclosed.

Event date

30 Jan 2025

Date tied to the ownership event or amendment.

Accepted by SEC

03 Feb 2025

EDGAR acceptance date.

How to read this large-stake filing
  • Schedule 13D/G filings focus on beneficial ownership stakes, not a full portfolio.
  • Compare this filing with the holder history and issuer page before treating the percentage as a current position.
  • Use amendments to understand whether the disclosed stake increased, decreased, or changed reporting status.
Class ownership
0%
Subject security Names, identifiers, and filing context for this profile. 1 source field
Symbol
CTOS
Source evidence Original filing metadata and source links for verification. 5 source fields
SEC form
SCHEDULE 13D/A
Accepted by SEC
03 Feb 2025, 17:00:27 UTC
Event date
30 Jan 2025
Prior SEC filing
23 Dec 2024
Source filing
View source filing

Key filing fact

ECP ControlCo, LLC disclosed 0% ownership in Custom Truck One Source, Inc. Common Stock (CTOS) on 30 Jan 2025.

Key facts

  • ECP ControlCo, LLC filed SCHEDULE 13D/A for Custom Truck One Source, Inc. Common Stock (CTOS).
  • Disclosed ownership: 0%.
  • Date of event: 30 Jan 2025.

Change

  • Previous schedule filing date: 23 Dec 2024.
  • Current filing was accepted on 03 Feb 2025, 17:00.

Research use

  • This page turns one Schedule 13D/G filing into a quick large-stake read before the raw reporting-person rows.
  • Use the linked SEC filing as the source of truth for ownership percentages, shares, and reporting-party details.

Evidence

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

View source filing

Reporting persons

Disclosed reporting parties (15)

Names, ownership percentages, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.

Name Ownership Shares owned Sole voting power Shared voting power Signature Title CIK
ECP ControlCo, LLC 0% 0 0 0 /s/ Jennifer Gray Jennifer Gray, General Counsel 0001707921
Energy Capital Partners III, LLC 0% 0 0 0 By: ECP ControlCo, LLC, its managing member; /s/ Jennifer Gray Jennifer Gray, General Counsel 0001621292
Energy Capital Partners GP III, LP 0% 0 0 0 By: Energy Capital Partners III, LLC, its general partner; By: ECP ControlCo, LLC, its managing member; /s/ Jennifer Gray Jennifer Gray, General Counsel 0001697506
Energy Capital Partners III, LP 0% 0 0 0 By: Energy Capital Partners GP III, LP; By: Energy Capital Partners III, LLC; By: ECP ControlCo, LLC; /s/ Jennifer Gray Jennifer Gray, General Counsel 0001594546
Energy Capital Partners III-A, LP 0% 0 0 0 By: Energy Capital Partners GP III, LP; By: Energy Capital Partners III, LLC; By: ECP ControlCo, LLC; /s/ Jennifer Gray Jennifer Gray, General Counsel 0001594547
Energy Capital Partners III-B, LP 0% 0 0 0 By: Energy Capital Partners GP III, LP; By: Energy Capital Partners III, LLC; By: ECP ControlCo, LLC; /s/ Jennifer Gray Jennifer Gray, General Counsel 0001594548
Energy Capital Partners III-C, LP 0% 0 0 0 By: Energy Capital Partners GP III, LP; By: Energy Capital Partners III, LLC; By: ECP ControlCo, LLC; /s/ Jennifer Gray Jennifer Gray, General Counsel 0001594549
Energy Capital Partners III-D, LP 0% 0 0 0 By: Energy Capital Partners GP III, LP; By: Energy Capital Partners III, LLC; By: ECP ControlCo, LLC; /s/ Jennifer Gray Jennifer Gray, General Counsel 0001594550
Energy Capital Partners GP III Co-Investment (NESCO), LLC 0% 0 0 0 By: Energy Capital Partners III, LLC, its general partner; By: ECP ControlCo, LLC, its managing member; /s/ Jennifer Gray Jennifer Gray, General Counsel 0001780268
Energy Capital Partners III (NESCO Co-Invest), LP 0% 0 0 0 By: Energy Capital Partners GP III Co-Investment (NESCO), LLC; By: Energy Capital Partners III, LLC; By: ECP ControlCo, LLC; /s/ Jennifer Gray Jennifer Gray, General Counsel 0001604735
ECP Starlight Public GP, LLC 0% 0 0 0 /s/ Christopher M. Leininger Christopher M. Leininger, Executive Vice President & General Counsel
ECP Starlight Guarantor (Public), LP 0% 0 0 0 By: ECP Starlight Public GP, LLC, its general partner; /s/ Christopher M. Leininger Christopher M. Leininger, Executive Vice President & General Counsel
NESCO Holdings GP, LLC 0% 0 0 0 /s/ Jennifer Gray Jennifer Gray, Executive Vice President 0001779905
NESCO Holdings, LP 0% 0 0 0 By: NESCO Holdings GP, LLC, its general partner; /s/ Jennifer Gray Jennifer Gray, Executive Vice President 0001779899
ECP Cardinal Holdings, LP 0% 0 0 0 By: NESCO Holdings GP, LLC, its general partner; /s/ Jennifer Gray Jennifer Gray, Executive Vice President 0001897243
We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. Manage preferences to update or revoke optional consent for future visits. For more information, see our Privacy Policy .