ECP ControlCo, LLC - Mar 31, 2023 Form 4 Insider Report for Custom Truck One Source, Inc. (CTOS)

Role
Director, 10%+ Owner
Signature
ECP ControlCo, LLC By: /s/ Rahman D'Argenio, Managing Member
Stock symbol
CTOS
Transactions as of
Mar 31, 2023
Transactions value $
$0
Form type
4
Date filed
4/4/2023, 08:14 PM
Previous filing
May 3, 2022
Next filing
Sep 11, 2023

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction CTOS Common Stock Options Exercise $0 +14.3K +11.85% $0.00 135K Mar 31, 2023 See footnote F1, F2
holding CTOS Common Stock 25.7M Mar 31, 2023 See footnotes F3, F4

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction CTOS Restricted Stock Unit Options Exercise $0 -14.3K -100% $0.00* 0 Mar 31, 2023 Common Stock 14.3K See footnote F1, F2
transaction CTOS Restricted Stock Unit Award $0 +18.6K $0.00 18.6K Apr 1, 2023 Common Stock 18.6K See footnote F1, F2, F5
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.
F2 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.
F3 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.
F4 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.
F5 The restricted stock units will vest on March 31, 2024 and have no expiration date.