ERock, Inc. (EROC)

Data as of Sep 5, 2026, from SEC Form 4 filings.

Net insider selling (90d)Watch EROC

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Latest EROC insider trades

Walter Thomas McAndrew Jr. - 10% Owner
Open-market sale372,093 sh
Jun 11, 2026
Walter Thomas McAndrew Jr. - 10% Owner
Open-market sale93,023 sh
Jun 11, 2026
Hans Kobler
Open-market sale

About ERock, Inc. (EROC)

ERock, Inc. is an SEC registrant, filing under CIK 0002110029, classified as electrical industrial apparatus. It is grouped with Information Technology companies on this site. Its offering priced on 10 June 2026 and it trades on NASDAQ.

Sector: Information Technology

SEC filings for EROC on EDGAR

EROC Form 4 activity by transaction type, last 90 days

Form 4 transaction type	Transactions	Shares	Total value
Open-market sale	2	465,116	-
Other acquisition / disposition	3	515,666

Dollar totals cover purchases and sales only (codes P and S). Grants, option exercises, gifts and tax withholding are counted in shares, because none of them is a trade at a market price.

EROC insider transactions (Form 4)

9 Form 4 filings on record, the earliest from Jun 12, 2026, newest first.

Date	Insider	Transaction	Security	Shares	Price	Value
Jun 11, 2026	Walter Thomas McAndrew Jr. - 10% Owner	Other	Class A common stock, par value $0.01	50,550	-^{footnote F1}	-
Jun 11, 2026	Walter Thomas McAndrew Jr. - 10% Owner	Other	Class B common stock, par value $0.01	372,093	-^{footnote F3}	-
Jun 11, 2026	Walter Thomas McAndrew Jr. - 10% Owner	Other	Class B common stock, par value $0.01	93,023	-^{footnote F4}	-
Jun 11, 2026	Walter Thomas McAndrew Jr. - 10% Owner	Open-market sale	Class B Units	372,093	-^{footnote F3}	-
Jun 11, 2026	Walter Thomas McAndrew Jr. - 10% Owner	Open-market sale	Class B Units	93,023	-^{footnote F4}	-
Footnote F1 (price): In connection with the initial public offering (the "IPO") of shares of Class A common stock, par value $0.01 per share (such shares, "Class A Shares"), of ERock, Inc. (the "Issuer"), the Issuer consummated certain mergers pursuant to which certain entities holding Class A… Full note on SEC EDGAR Footnote F3 (price): The Issuer used approximately $7.4 million of the IPO proceeds to purchase 372,093 Class B Units of ER Holdings from Mr. McAndrew. Upon such purchase, 372,093 of the Issuer's Class B Shares held by Mr. McAndrew were cancelled. Footnote F4 (price): The Issuer used approximately $1.8 million of the IPO proceeds to purchase 93,023 Class B Units of ER Holdings from McAndrew Holdings, Ltd. ("Holdings"). Upon such purchase, 93,023 of the Issuer's Class B Shares held by Holdings were cancelled.
Jun 11, 2026	Hans Kobler	Other	Class B Common Stock	6,041,206^{footnote F7}	-^{footnote F6}	-
Jun 11, 2026	Hans Kobler	Open-market sale	Class B Units	6,041,206	-^{footnote F6}	-
Jun 11, 2026	Hans Kobler	Other	Class A Common Stock	19,350,897	-^{footnote F2}	-
Footnote F2 (price): In connection with the Issuer's initial public offering of Class A common stock (the "Offering"), EIF ER Blocker LLC ("EIF ER Blocker") merged with and into the Issuer pursuant to the Blocker Mergers (as defined in the Issuer's prospectus filed with Securities and Exchange… Full note on SEC EDGAR Footnote F6 (price): The Issuer used approximately $119.9 million of the net proceeds from the closing of the Offering to purchase 6,041,206 Class B Units from Flagship. An equal number of shares of the Issuer's Class B common stock were cancelled in connection with the repurchase of the Class B… Full note on SEC EDGAR Footnote F7 (shares): 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… Full note on SEC EDGAR
Jun 11, 2026	Energy Impact Partners LLC	Open-market sale	Class B Units	6,041,206	-^{footnote F6}	-
Jun 11, 2026	Energy Impact Partners LLC	Other	Class A Common Stock	19,350,897	-^{footnote F2}	-
Jun 11, 2026	Energy Impact Partners LLC	Other	Class B Common Stock	6,041,206^{footnote F7}	-^{footnote F6}	-
Footnote F2 (price): In connection with the Issuer's initial public offering of Class A common stock (the "Offering"), EIF ER Blocker LLC ("EIF ER Blocker") merged with and into the Issuer pursuant to the Blocker Mergers (as defined in the Issuer's prospectus filed with Securities and Exchange… Full note on SEC EDGAR Footnote F6 (price): The Issuer used approximately $119.9 million of the net proceeds from the closing of the Offering to purchase 6,041,206 Class B Units from Flagship. An equal number of shares of the Issuer's Class B common stock were cancelled in connection with the repurchase of the Class B… Full note on SEC EDGAR Footnote F7 (shares): 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… Full note on SEC EDGAR
Jun 11, 2026	Robert Ian Blakely - Officer	Derivative	Class B Common Stock	449,233	-^{footnote F1}	-
Jun 11, 2026	Robert Ian Blakely - Officer	Derivative	Class B Units	449,233	$19.85^{footnote F1}	$8.92M
Footnote F1 (price): Represents 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… Full note on SEC EDGAR
Jun 11, 2026	Corey Amthor - Officer	Derivative	Class B Common Stock	617,442	-^{footnote F1}	-
Jun 11, 2026	Corey Amthor - Officer	Derivative	Class B Units	617,442	$19.85^{footnote F1}	$12.26M
Footnote F1 (price): Represents 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… Full note on SEC EDGAR
Jun 11, 2026	Livingston Satterthwaite	Grant or award	Class A Common Stock	13,024^{footnote F1}	$0.00	-
Footnote F1 (shares): 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… Full note on SEC EDGAR
Jun 11, 2026	Mark R. Patterson	Grant or award	Class A Common Stock	13,024^{footnote F1}	$0.00	-
Footnote F1 (shares): 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… Full note on SEC EDGAR
Jun 11, 2026	Dan Brouillette	Grant or award	Class A Common Stock	13,024^{footnote F1}	$0.00	-
Footnote F1 (shares): 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… Full note on SEC EDGAR
Jun 11, 2026	Charles D. Boynton	Grant or award	Class A Common Stock	13,024^{footnote F1}	$0.00	-
Footnote F1 (shares): 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… Full note on SEC EDGAR

Recent EROC Form 8-K filings

Read EROC company news

Aug 11, 2026Item 2.02, 9.01

Read the filing on SEC EDGAR

Jun 12, 2026Item 1.01, 3.02, 3.03, 5.02, 5.03, 8.01, 9.01

Read the filing on SEC EDGAR

EROC insider trading FAQ

What is the latest insider trade for EROC?

ERock, Inc. (EROC) had 1 insider filing in the last 90 days, with the most recent on 2026-09-05. The full record for EROC runs to 9 Form 4 filings, the earliest from 2026-06-12. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.

How many insiders are buying EROC stock?

No insider purchases of EROC were filed in the last 90 days.

How many insiders are selling EROC stock?

2 insider sales of EROC were filed in the last 90 days.

Where can I see EROC SEC filings (Form 4, 10-K, 10-Q, 8-K)?

This page collects EROC Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.

More Information Technology companies with insider activity

Recent insider filings

The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.

Sep 5, 2026 - Walter Thomas McAndrew Jr. view on EDGAR
Jun 15, 2026 - Hans Kobler view on EDGAR
Jun 15, 2026 - Energy Impact Partners LLC view on EDGAR
Jun 12, 2026 - Robert Ian Blakely view on EDGAR
Jun 12, 2026 - Corey Amthor view on EDGAR
Jun 12, 2026 - Livingston Satterthwaite view on EDGAR
Jun 12, 2026 - Mark R. Patterson view on EDGAR
Jun 12, 2026 - Dan Brouillette view on EDGAR
Jun 12, 2026 - Charles D. Boynton view on EDGAR

Related companies with recent insider activity

Learn more

Insider selling: signal or noise?: Why most insider sales are routine, and the few patterns worth a second look.
Insider activity in Information Technology: Where EROC's peers are being bought and sold.
Every recent Form 4: The market-wide feed, updated as filings arrive from SEC EDGAR.

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Form 4 transaction type

Transactions

Total value

Open-market sale

465,116

Other acquisition / disposition

515,666

Date

Insider

Transaction

Security

Price

Value

Jun 11, 2026

Walter Thomas McAndrew Jr. - 10% Owner

Other

Class A common stock, par value $0.01

50,550

-^{footnote F1}

Jun 11, 2026

Walter Thomas McAndrew Jr. - 10% Owner

Other

Class B common stock, par value $0.01

372,093

-^{footnote F3}

Jun 11, 2026

Walter Thomas McAndrew Jr. - 10% Owner

Other

Class B common stock, par value $0.01

93,023

-^{footnote F4}

Jun 11, 2026

Walter Thomas McAndrew Jr. - 10% Owner

Open-market sale

Class B Units

372,093

-^{footnote F3}

Jun 11, 2026

Walter Thomas McAndrew Jr. - 10% Owner

Open-market sale

Class B Units

93,023

-^{footnote F4}

Footnote F1 (price): In connection with the initial public offering (the "IPO") of shares of Class A common stock, par value $0.01 per share (such shares, "Class A Shares"), of ERock, Inc. (the "Issuer"), the Issuer consummated certain mergers pursuant to which certain entities holding Class A… Full note on SEC EDGAR
Footnote F3 (price): The Issuer used approximately $7.4 million of the IPO proceeds to purchase 372,093 Class B Units of ER Holdings from Mr. McAndrew. Upon such purchase, 372,093 of the Issuer's Class B Shares held by Mr. McAndrew were cancelled.
Footnote F4 (price): The Issuer used approximately $1.8 million of the IPO proceeds to purchase 93,023 Class B Units of ER Holdings from McAndrew Holdings, Ltd. ("Holdings"). Upon such purchase, 93,023 of the Issuer's Class B Shares held by Holdings were cancelled.

Jun 11, 2026

Hans Kobler

Other

Class B Common Stock

6,041,206^{footnote F7}

-^{footnote F6}

Jun 11, 2026

Hans Kobler

Open-market sale

Class B Units

6,041,206

-^{footnote F6}

Jun 11, 2026

Hans Kobler

Other

Class A Common Stock

19,350,897

-^{footnote F2}

Footnote F2 (price): In connection with the Issuer's initial public offering of Class A common stock (the "Offering"), EIF ER Blocker LLC ("EIF ER Blocker") merged with and into the Issuer pursuant to the Blocker Mergers (as defined in the Issuer's prospectus filed with Securities and Exchange… Full note on SEC EDGAR
Footnote F6 (price): The Issuer used approximately $119.9 million of the net proceeds from the closing of the Offering to purchase 6,041,206 Class B Units from Flagship. An equal number of shares of the Issuer's Class B common stock were cancelled in connection with the repurchase of the Class B… Full note on SEC EDGAR
Footnote F7 (shares): 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… Full note on SEC EDGAR

Jun 11, 2026

Energy Impact Partners LLC

Open-market sale

Class B Units

6,041,206

-^{footnote F6}

Jun 11, 2026

Energy Impact Partners LLC

Other

Class A Common Stock

19,350,897

-^{footnote F2}

Jun 11, 2026

Energy Impact Partners LLC

Other

Class B Common Stock

6,041,206^{footnote F7}

-^{footnote F6}

Footnote F2 (price): In connection with the Issuer's initial public offering of Class A common stock (the "Offering"), EIF ER Blocker LLC ("EIF ER Blocker") merged with and into the Issuer pursuant to the Blocker Mergers (as defined in the Issuer's prospectus filed with Securities and Exchange… Full note on SEC EDGAR
Footnote F6 (price): The Issuer used approximately $119.9 million of the net proceeds from the closing of the Offering to purchase 6,041,206 Class B Units from Flagship. An equal number of shares of the Issuer's Class B common stock were cancelled in connection with the repurchase of the Class B… Full note on SEC EDGAR
Footnote F7 (shares): 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… Full note on SEC EDGAR

Jun 11, 2026

Robert Ian Blakely - Officer

Derivative

Class B Common Stock

449,233

-^{footnote F1}

Jun 11, 2026

Robert Ian Blakely - Officer

Derivative

Class B Units

449,233

$19.85^{footnote F1}

$8.92M

Footnote F1 (price): Represents 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… Full note on SEC EDGAR

Jun 11, 2026

Corey Amthor - Officer

Derivative

Class B Common Stock

617,442

-^{footnote F1}

Jun 11, 2026

Corey Amthor - Officer

Derivative

Class B Units

617,442

$19.85^{footnote F1}

$12.26M

Footnote F1 (price): Represents 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… Full note on SEC EDGAR

Jun 11, 2026

Livingston Satterthwaite

Grant or award

Class A Common Stock

13,024^{footnote F1}

$0.00

Footnote F1 (shares): 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… Full note on SEC EDGAR

Jun 11, 2026

Mark R. Patterson

Grant or award

Class A Common Stock

13,024^{footnote F1}

$0.00

Footnote F1 (shares): 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… Full note on SEC EDGAR

Jun 11, 2026

Dan Brouillette

Grant or award

Class A Common Stock

13,024^{footnote F1}

$0.00

Footnote F1 (shares): 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… Full note on SEC EDGAR

Jun 11, 2026

Charles D. Boynton

Grant or award

Class A Common Stock

13,024^{footnote F1}

$0.00

Footnote F1 (shares): 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… Full note on SEC EDGAR