SEC Filing Document

Company: ERock, Inc.
Ticker: 
CIK: 2110029
Filing Type: DRS
Document Type: DRS
Date Filed: 2026-02-17
Accession Number: 0001193125-26-054926
Exchange: 
SIC Code: 3620
SIC Description: Electrical Industrial Apparatus
URL: https://www.sec.gov/Archives/edgar/data/2110029/000119312526054926/filename1.htm

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As confidentially submitted to the Securities and Exchange Commission on February 17, 2026.

This draft registration statement has not been publicly filed with the Securities and Exchange Commission and all information herein
is strictly confidential.

Registration No. 333-

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

Confidential Draft Submission No. 1

FORM S-1

REGISTRATION STATEMENT

UNDER

THE
SECURITIES ACT OF 1933

Enchanted Rock, Inc.

(Exact name of registrant as specified in its charter)

Delaware 3620 41-4189868

(State or other jurisdiction of
incorporation or organization) (Primary Standard Industrial
Classification Code Number) (I.R.S. Employer
Identification Number)

1113 Vine St., Suite 101

Houston, Texas 77002

(Address, including zip code, and telephone number, including area code, of
registrant’s principal executive offices)

John Carrington

Chief
Executive Officer

1113 Vine St., Suite 101

Houston, Texas 77002

(Name, address, including zip code, and telephone number, including area code, of
agent for service)

With copies to:

John T. Gaffney
Hillary H. Holmes Harrison
Tucker Gibson, Dunn & Crutcher LLP 811 Main Street, Suite 3000 Houston, Texas 77002 (346) 718-6600 Richard D. Truesdell, Jr.
Derek Dostal Davis
Polk & Wardwell LLP 450 Lexington Avenue
New York, NY 10017 (212) 450-4000

Approximate date of commencement of proposed sale to the public: As soon as practicable after this registration statement
becomes effective.

If any of the securities being registered on this Form are to be offered on a delayed or continuous
basis pursuant to Rule 415 under the Securities Act of 1933 check the following box. ☐

If this Form is filed to
register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same
offering. ☐

If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act,
check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

If this Form is a post-effective amendment filed pursuant to Rule 462(d) under the Securities Act, check the following box and
list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting
company” and “emerging growth company” in Rule 12b-2 of the Exchange Act:

Large accelerated filer ☐ Accelerated filer ☐

Non-accelerated filer ☒ Smaller reporting company ☐

Emerging growth company ☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use
the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. ☐

The Registrant hereby amends this registration statement on such date or dates as may be necessary to delay its effective
date until the registrant shall file a further amendment which specifically states that this registration statement shall thereafter become effective in accordance with Section 8(a) of the Securities Act of 1933, as amended, or until the
registration statement shall become effective on such date as the Securities and Exchange Commission, acting pursuant to such Section 8(a), may determine.

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The information in this prospectus is not complete and may be changed. The securities described herein may not be sold
until the registration statement filed with the Securities and Exchange Commission is effective. This prospectus is not an offer to sell such securities, and it is not soliciting an offer to buy these securities, in any state where the offer or sale
is not permitted.

PRELIMINARY PROSPECTUS

(Subject to Completion, Dated     , 2026)

Shares

Class A Common Stock

This is the initial public offering of shares of Class A common stock by Enchanted Rock, Inc., a Delaware corporation. We are
offering    shares of our Class A common stock.

Currently, no public market exists for our
Class A common stock. We expect the initial public offering price to be between $  and $  per share. We intend to apply to list our Class A common stock on the
(“    ”) under the symbol “    .”

Following this offering,
we will have two classes of authorized common stock: Class A common stock; and Class B common stock. Each share of Class A common stock and Class B common stock will entitle the holder to one vote. Holders of our common stock
will vote together as a single class on all matters presented to our stockholders for their vote or approval, except as otherwise provided in our amended and restated certificate of incorporation (the “certificate of incorporation”) or
as required by applicable law. The holders of Class B common stock will not have any economic rights, including any of the economic rights (including the rights to dividends) provided to holders of Class A common stock.

We are an “emerging growth company” as defined under the U.S. federal securities laws and, as such, have elected to comply with
certain reduced public company reporting requirements for this and future filings. See “Risk Factors” and “Prospectus Summary—Implications of Being an Emerging Growth Company.”

Investing in our Class A common stock involves risks that are described in the “Risk Factors”
section beginning on page 32 of this prospectus.

Per Share Total

Initial public offering price $ $

Underwriting discounts and commissions (1) $ $

Proceeds, before expenses, to Enchanted Rock, Inc. $ $

(1)	See “Underwriting” for a description of all underwriting compensation payable in connection
with this offering.

The underwriters may also exercise an option to purchase up to an
additional    shares of our Class A common stock from us, at the initial public offering price, less the underwriting discounts and commissions, for 30 days after the date of this prospectus.

Neither the Securities and Exchange Commission (“SEC”) nor any state securities commission has approved or disapproved of these
securities or passed on the adequacy or accuracy of this prospectus. Any representation to the contrary is a criminal offense.

The
shares of Class A common stock will be ready for delivery on or about    , 2026.

Joint Book-Running Managers

Morgan Stanley J.P. Morgan

Prospectus Dated    , 2026.

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EXPLANATORY NOTE

Pursuant to the applicable provisions of the Fixing America’s Surface Transportation Act, we have omitted our
consolidated financial statements as of, and for the year ended, December 31, 2023, and as of, and for the nine month periods ended, September 30, 2025 and 2024 because they relate to historical periods that we believe will not be required
to be included in the registration statement at the time of the contemplated offering. We intend to amend this registration statement to include all financial information required by Regulation S-X at the date
of such amendment before distributing a preliminary prospectus to investors.

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TABLE OF CONTENTS

Page

GLOSSARY OF INDUSTRY AND ENCHANTED ROCK TERMS iii

PROSPECTUS SUMMARY 1

RISK FACTORS 32

CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS 74

ORGANIZATIONAL STRUCTURE 76

USE OF PROCEEDS 81

DIVIDEND POLICY 82

CAPITALIZATION 83

DILUTION 84

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
OF OPERATIONS 85

BUSINESS 103

MANAGEMENT 131

Page

EXECUTIVE COMPENSATION 136

CERTAIN RELATIONSHIPS AND RELATED PERSON TRANSACTIONS 149

SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND
MANAGEMENT 156

DESCRIPTION OF CAPITAL STOCK 157

SHARES ELIGIBLE FOR FUTURE SALE 163

MATERIAL U.S. FEDERAL INCOME TAX CONSIDERATIONS 165

UNDERWRITING 170

LEGAL MATTERS 179

EXPERTS 179

WHERE YOU CAN FIND ADDITIONAL INFORMATION 179

INDEX TO FINANCIAL STATEMENTS F-1

Neither we
nor the underwriters have authorized anyone to provide you with information other than that contained in this prospectus or in any free writing prospectus prepared by or on behalf of us or to which we have referred you. We and the underwriters take
no responsibility for, and can provide no assurance as to the reliability of, any other information that others may give you. We and the underwriters are not making an offer to sell our Class A common stock in any jurisdiction where an offer or
sale is not permitted. The information contained in this prospectus or any free writing prospectus is accurate only as of its date, regardless of its time of delivery or of any sale of shares of our Class A common stock. Our business, financial
condition, results of operations and prospects may have changed since that date.