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ERock (NASDAQ: EROC) CFO details Class A, B and M equity stakes in Form 3

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
3

Rhea-AI Filing Summary

ERock, Inc. Chief Financial Officer Robert Ian Blakely filed an initial Form 3 reporting his equity holdings. He directly holds 4,936,761 shares of Class B Common Stock, which carry voting rights but no economic value and are paired one-for-one with Class B Units of Enchanted Rock Holdings.

He also holds several tranches of Class M and Class B Units in Enchanted Rock Holdings that are exchangeable into Class A Common Stock, with underlying amounts including 630,574 and 2,901,038 Class A-equivalent shares at stated threshold amounts. Portions of these Class M Units have already vested, with the remainder vesting in monthly installments from mid‑2026 through late 2028, subject to his continued service.

Positive

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Insider Blakely Robert Ian
Role Chief Financial Officer
Type Security Shares Price Value
holding Class B Units -- -- --
holding Class M Units -- -- --
holding Class M Units -- -- --
holding Class M Units -- -- --
holding Class B Common Stock -- -- --
Holdings After Transaction: Class B Units — 4,936,761 shares (Direct, null); Class M Units — 143,903 shares (Direct, null); Class B Common Stock — 4,936,761 shares (Direct, null)
Footnotes (1)
  1. Shares of the Issuer's Class B common stock ("Class B Common Stock") have no economic value and have one vote per share. One share of Class B Common Stock is issued for each Class B Unit ("Class B Units") of Enchanted Rock Holdings, LLC ("ER Holdings") held. Upon an exchange of Class B Units for shares of the Issuer's Class A common stock ("Class A Common Stock"), an equivalent number of shares of Class B Common Stock held by such holder will be automatically cancelled. The 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. Reflect Class M Units ("Class M Units") of ER Holdings, which are "profits interests" for U.S. federal income tax purposes. Vested Class M Units are convertible, at the holder's option, into a number of Class B Units generally equal to the product of (a) the number of vested Class M Units to be converted, and (b) a fraction, the numerator of which is the amount that would be distributed in respect of the vested Class M Unit (taking into account the applicable threshold amount), and the denominator of which is the amount that would be distributed in respect of a Class B Unit, in each case if, immediately before the exchange, ER Holdings were to sell all of its assets for their fair market values, pay any liabilities, and distribute the proceeds available for distribution, subject to certain adjustments. Class M Units have no expiration date. 128,913 of these Class M Units have vested, and the remaining Class M Units vest in 10 equal monthly installments on the first day of each calendar month commencing July 2026 and ending April 2027, subject to the Reporting Person's continuous service to the Issuer. 805,840 of these Class M Units have vested, and the remaining Class M Units vest in 26 equal monthly installments commencing June 28, 2026 and ending July 28, 2028, subject to the Reporting Person's continuous service to the Issuer. 105,089 of these Class M Units have vested, and the remaining Class M Units vest in 30 equal monthly installments commencing June 26, 2026 and ending November 26, 2028, subject to the Reporting Person's continuous service to the Issuer.
Class B Common Stock held 4,936,761 shares Direct holdings of Class B Common Stock
Class B Units underlying Class A 4,936,761 shares Underlying Class A Common Stock via Class B Units
Class M Units tranche 1 630,574 underlying shares at 1.6100 Class M Units convertible into Class A Common Stock
Class M Units tranche 2 2,901,038 underlying shares at 0.1500 Class M Units convertible into Class A Common Stock
Class M Units tranche 3 143,903 underlying shares at 0.1500 Class M Units convertible into Class A Common Stock
Vested Class M Units (grant 1) 128,913 units Portion of a Class M Unit grant already vested
Vested Class M Units (grant 2) 805,840 units Portion of a second Class M Unit grant vested
Vested Class M Units (grant 3) 105,089 units Portion of a third Class M Unit grant vested
Class B Common Stock financial
"Shares of the Issuer's Class B common stock ("Class B Common Stock") have no economic value"
A class B common stock is one of multiple types of a company’s ordinary shares that carries specific rights—often different voting power or dividend priority—compared with other classes. For investors it matters because those differences affect how much influence you have over company decisions, the income you might receive, and how freely the shares trade; think of it like owning a car with different keys: some keys let you start the engine and open the trunk, others only unlock the door.
Class M Units financial
"Reflect Class M Units ("Class M Units") of ER Holdings, which are "profits interests""
profits interests financial
"Class M Units ("Class M Units") of ER Holdings, which are "profits interests" for U.S. federal income tax purposes"
Class A Common Stock financial
"exchangeable, at the holder's option, on a one-for-one basis into shares of Class A Common Stock"
Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.
vesting financial
"remaining Class M Units vest in 10 equal monthly installments on the first day of each calendar month"
Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.
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SEC Form 3
FORM 3UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0104
Estimated average burden
hours per response:0.5
1. Name and Address of Reporting Person*
Blakely Robert Ian

(Last)(First)(Middle)
C/O EROCK, INC.
1113 VINE STREET, SUITE 101

(Street)
HOUSTON TEXAS 77002

(City)(State)(Zip)

UNITED STATES

(Country)
2. Date of Event Requiring Statement (Month/Day/Year)
06/09/2026
3. Issuer Name and Ticker or Trading Symbol
ERock, Inc. [ EROC ]
3a. Foreign Trading Symbol
5. If Amendment, Date of Original Filed (Month/Day/Year)
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
Chief Financial Officer
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5)
Class B Common Stock4,936,761(1)D
Table II - Derivative Securities Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4) 2. Date Exercisable and Expiration Date (Month/Day/Year)3. Title and Amount of Securities Underlying Derivative Security (Instr. 4) 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 6. Nature of Indirect Beneficial Ownership (Instr. 5)
Date ExercisableExpiration DateTitleAmount or Number of Shares
Class B Units (2) (2)Class A Common Stock4,936,761(2)D
Class M Units (2)(3)(4) (2)(3)(4)Class A Common Stock143,903$0.15(2)(3)(4)D
Class M Units (2)(3)(5) (2)(3)(5)Class A Common Stock2,901,038$0.15(2)(3)(5)D
Class M Units (2)(3)(6) (2)(3)(6)Class A Common Stock630,574$1.61(2)(3)(6)D
Explanation of Responses:
1. Shares of the Issuer's Class B common stock ("Class B Common Stock") have no economic value and have one vote per share. One share of Class B Common Stock is issued for each Class B Unit ("Class B Units") of Enchanted Rock Holdings, LLC ("ER Holdings") held. Upon an exchange of Class B Units for shares of the Issuer's Class A common stock ("Class A Common Stock"), an equivalent number of shares of Class B Common Stock held by such holder will be automatically cancelled.
2. The 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.
3. Reflect Class M Units ("Class M Units") of ER Holdings, which are "profits interests" for U.S. federal income tax purposes. Vested Class M Units are convertible, at the holder's option, into a number of Class B Units generally equal to the product of (a) the number of vested Class M Units to be converted, and (b) a fraction, the numerator of which is the amount that would be distributed in respect of the vested Class M Unit (taking into account the applicable threshold amount), and the denominator of which is the amount that would be distributed in respect of a Class B Unit, in each case if, immediately before the exchange, ER Holdings were to sell all of its assets for their fair market values, pay any liabilities, and distribute the proceeds available for distribution, subject to certain adjustments. Class M Units have no expiration date.
4. 128,913 of these Class M Units have vested, and the remaining Class M Units vest in 10 equal monthly installments on the first day of each calendar month commencing July 2026 and ending April 2027, subject to the Reporting Person's continuous service to the Issuer.
5. 805,840 of these Class M Units have vested, and the remaining Class M Units vest in 26 equal monthly installments commencing June 28, 2026 and ending July 28, 2028, subject to the Reporting Person's continuous service to the Issuer.
6. 105,089 of these Class M Units have vested, and the remaining Class M Units vest in 30 equal monthly installments commencing June 26, 2026 and ending November 26, 2028, subject to the Reporting Person's continuous service to the Issuer.
Remarks:
Exhibit 24 - Power of Attorney
/s/ Davis Zapffe, Attorney-in-fact for Robert Ian Blakely06/09/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 3: SEC 1473 (03-26)

FAQ

What does ERock (EROC) CFO Robert Ian Blakely report on this Form 3?

ERock CFO Robert Ian Blakely reports his equity holdings in the company and its affiliate. He lists 4,936,761 shares of Class B Common Stock and multiple Class M and Class B Units in Enchanted Rock Holdings that are exchangeable into Class A Common Stock.

How many ERock (EROC) Class B Common shares does the CFO hold?

The CFO holds 4,936,761 shares of Class B Common Stock. These shares have one vote each but no economic value and are issued alongside an equal number of Class B Units in Enchanted Rock Holdings, which can be exchanged into Class A Common Stock.

What are ERock (EROC) Class M Units and how can they convert?

Class M Units are profits interests in Enchanted Rock Holdings. Vested Class M Units are generally convertible, at the holder’s option, into Class B Units based on distribution formulas, which then can be exchanged one-for-one into Class A Common Stock of ERock, subject to detailed conditions.

What derivative positions tied to ERock (EROC) Class A stock does the CFO hold?

The filing lists Class M and Class B Units exchangeable into Class A Common Stock. These include underlying Class A-equivalent amounts of 630,574 at a stated threshold of 1.6100 and 2,901,038 and 143,903 at 0.1500, plus 4,936,761 underlying shares from Class B Units.

How do the vesting schedules work for ERock (EROC) Class M Units held by the CFO?

Several Class M Unit grants vest over time if the CFO continues service. One grant has 128,913 units vested, with the remainder vesting in ten monthly installments from July 2026 to April 2027. Other grants vest in monthly installments through July 2028 and November 2028.

Do ERock (EROC) Class B Common shares have economic rights?

The Class B Common shares have no economic value and one vote per share. They accompany Class B Units of Enchanted Rock Holdings, which are exchangeable into Class A Common Stock, and the paired Class B Common shares are automatically cancelled upon such an exchange.