Changes in Beneficial Ownership · 4

ERock, Inc.

EROCNYSEEQUITYCurrent

Changes in Beneficial Ownership

Filed Jun 12, 2026Accepted Jun 12, 2026, 6:15 PM EDTFiling CIK 2110029Accession 0001193125-26-269840

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Structured filing — 4

ownership.xml

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Filing details

Report period: 2026-06-11
Issuer: ERock, Inc.
Issuer CIK: 0002110029
Trading symbol: EROC

Reporting owner 1

Name: SATTERTHWAITE LIVINGSTON
Reporting owner CIK: 0001517394
Relationship: Director
Address: C/O EROCK, INC., 1113 VINE STREET, SUITE 101, HOUSTON, TX, 77002

Non-derivative transactions

Non-derivative transactions · 1 reported row
Security	Transaction date	Code	Amount	A / D	Price (USD)	Owned after	Ownership
Class A Common Stock	2026-06-11	A · Form 4	13,024^[F1]	A	0.00	13,024	D

Table key

A · Form 4: Acquisition by grant, award or otherwise under Rule 16b-3(d)
A: Acquired
D: Direct

Footnotes

F1: Consists of 13,024 restricted stock units granted to the Reporting Person, which will vest on the earlier of the first anniversary of the grant date or the Issuer's next annual meeting of stockholders, subject to the Reporting Person's continued service to the Issuer. Each restricted stock unit represents the right to receive one share of Class A common stock of the Issuer following vesting.↩ 1

Signature 1

Signed: /s/ Davis Zapffe, Attorney-in-Fact for Livingston Satterthwaite
Date: 2026-06-12

Company context

We are a vertically integrated company that designs, deploys, operates and maintains multi-purpose distributed power systems, consisting of our proprietary, low emission, quick-response natural gas generator and embedded software technology, for our customers. Our resilient, cost-effective, modular power systems can be rapidly deployed at a scale of more than 1 GW to meet our customers’ full range of power needs, including bridge, backup and dispatchable power applications, and are supported by our operations and maintenance (“O&M”) and asset management services. We deploy our systems in three applications: bridge (prime-to-backup), backup (resiliency) and dispatchable (flexible capacity) power.

Current securities

EROCNYSE · EQUITY · Current

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