ECP ControlCo, LLC - Insider Trading & Ownership

Location: 40 Beechwood Road, Summit, NJ
Summary: The estimated value of insider holdings of ECP ControlCo, LLC is at least $309M dollars as of September 12, 2025. ECP ControlCo, LLC is the 10%+ Owner of Sunnova Energy International Inc. and owns shares of Sunnova Energy International Inc. (NOVA) stock worth about $195M. ECP ControlCo, LLC is the 10%+ Owner of Custom Truck One Source, Inc. and owns shares of Custom Truck One Source, Inc. (CTOS) stock worth about $80.1M. ECP ControlCo, LLC is the 10%+ Owner of SHENANDOAH TELECOMMUNICATIONS CO/VA/ and owns shares of SHENANDOAH TELECOMMUNICATIONS CO/VA/ (SHEN) stock worth about $33.7M.
Signature: ECP ControlCo, LLC, By: /s/ Jennifer Gray, General Counsel
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Ownership of ECP ControlCo, LLC

Symbol	Company	Relationship	Holdings Value	Past Year Net Change	Change %	Report Period
NOVA	Sunnova Energy International Inc.	10%+ Owner	$195M			Nov 1, 2021
CTOS	Custom Truck One Source, Inc.	10%+ Owner	$80.1M			Sep 5, 2024
SHEN	SHENANDOAH TELECOMMUNICATIONS CO/VA/	10%+ Owner	$33.7M	+$13.6M	+67.5%	Sep 10, 2025
FSRD	Fast Radius, Inc.	Director, 10%+ Owner				Feb 4, 2022

Sym	Company	Class	Transaction	%	Value $	* Price $	Shares	Shares After	Date	Ownership

* An asterisk sign (*) next to the price indicates that the price is likely invalid.