SEC Form 4 · accession 0001193125-26-269855

ERock, Inc. · EROC

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

Reporting owner

Officer — Chief Financial Officer

Period of report

Jun 11, 2026

Accepted (ET)

Jun 12, 2026 · 6:21 pm EDT

Rule 10b5-1 plan

box not checked

Issuer CIK

0002110029

Table I — non-derivative securities

Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Class B Common Stock^F1	Jun 11, 2026	D	449,233	—	D	4,487,528	D

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	Owned after	D/I
Class B Units^F1,F2	—	Jun 11, 2026	D	449,233	D	—	—	Class A Common Stock	449,233	4,487,528	D

F1Represents Class B Units of Enchanted Rock Holdings, LLC sold by the Reporting Person to the Issuer in connection with the closing of the Issuer's initial public offering ("IPO") at a price per Class B Unit of $19.85 (the per-share price paid by the underwriters for shares of the Class A Common Stock in the IPO, less the Reporting Person's share of offering expenses). In connection with such sale, the Issuer automatically cancelled an equivalent number of shares of Class B Common Stock held by the Reporting Person.
F2The Class B Units are exchangeable, at the holder's option, on a one-for-one basis into shares of Class A Common Stock of the Issuer or cash (at the Issuer's election). Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock will be automatically cancelled.