person · Reporting owner
McAndrew Walter Thomas Jr.
Disclosed activity across 1 company
Sign in to followReported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| ERock, Inc.EROC · Entity 4204 | 10% owner | June 11, 2026 | September 05, 2026 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
ERock, Inc.
Report date June 11, 2026 · Filed September 05, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Class A common stock, par value $0.01SEC Table I · non-derivative | Direct | 50,550 |
Reported balance
After 2026-06-11 transaction · row 1
1 source rowRow 1 · 2026-06-11 · Other · Acquired 50,550 · Balance 50,550 F1: 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 membership interests ("Class A Units") of Enchanted Rock Holdings, LLC ("ER Holdings") merged with and into the Issuer (the "Blocker Mergers"), as described in the Issuer's prospectus filed with the Securities and Exchange Commission on June 10, 2026. In connection with the Blocker Mergers, 50,550 Class A Units held by ERock Holdings GP, LLC were exchanged for 50,550 Class A Shares issued to Walter Thomas McAndrew, Jr. ("Mr. McAndrew"). |
| Class B common stock, par value $0.01SEC Table I · non-derivative | Direct | 5,996,469 |
Reported balance
After 2026-06-11 transaction · row 2
Account or security details depend on footnotes; rows are not merged.
1 source rowRow 2 · 2026-06-11 · Other · Disposed 372,093 · Balance 5,996,469 F2: Shares of the Issuer's Class B common stock, par value $0.01 per share (such shares, "Class B Shares"), have no economic value and entitle the holder to one vote per Class B Share held. One Class B Share was issued for each Class B membership interest (each, a "Class B Unit") of ER Holdings held. F3: 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. |
| Class B common stock, par value $0.01SEC Table I · non-derivative | IndirectBy McAndrew Holdings, Ltd. | 16,540,099 |
Reported balance
After 2026-06-11 transaction · row 3
Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source rowRow 3 · 2026-06-11 · Other · Disposed 93,023 · Balance 16,540,099 F2: Shares of the Issuer's Class B common stock, par value $0.01 per share (such shares, "Class B Shares"), have no economic value and entitle the holder to one vote per Class B Share held. One Class B Share was issued for each Class B membership interest (each, a "Class B Unit") of ER Holdings held. F4: 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. F5: These securities are owned directly by Holdings. Mr. McAndrew may be deemed to share voting and investment power over the securities held by Holdings in his capacity as a manager of McAndrew Holdings, LLC, the general partner of Holdings. Mr. McAndrew disclaims beneficial ownership of the securities held by Holdings except to the extent of his pecuniary interest therein. |
| Class B UnitsSEC Table II · derivative / convertible security | Direct | 5,996,469 |
Reported balance
After 2026-06-11 transaction · row 4
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 4 · 2026-06-11 · Sale · Disposed 372,093 · Balance 5,996,469 F6: The Class B Units of ER Holdings are exchangeable, at the holder's option, on a one-for-one basis into Class A Shares of the Issuer. Upon the exchange of Class B Units into Class A Shares, an equivalent number of Class B Shares will be automatically cancelled. F3: 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. |
| Class B UnitsSEC Table II · derivative / convertible security | IndirectBy McAndrew Holdings, Ltd. | 16,540,099 |
Reported balance
After 2026-06-11 transaction · row 5
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 5 · 2026-06-11 · Sale · Disposed 93,023 · Balance 16,540,099 F6: The Class B Units of ER Holdings are exchangeable, at the holder's option, on a one-for-one basis into Class A Shares of the Issuer. Upon the exchange of Class B Units into Class A Shares, an equivalent number of Class B Shares will be automatically cancelled. F4: 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. F5: These securities are owned directly by Holdings. Mr. McAndrew may be deemed to share voting and investment power over the securities held by Holdings in his capacity as a manager of McAndrew Holdings, LLC, the general partner of Holdings. Mr. McAndrew disclaims beneficial ownership of the securities held by Holdings except to the extent of his pecuniary interest therein. |
Filing footnotes · ownership attribution and instrument terms
F1: 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 membership interests ("Class A Units") of Enchanted Rock Holdings, LLC ("ER Holdings") merged with and into the Issuer (the "Blocker Mergers"), as described in the Issuer's prospectus filed with the Securities and Exchange Commission on June 10, 2026. In connection with the Blocker Mergers, 50,550 Class A Units held by ERock Holdings GP, LLC were exchanged for 50,550 Class A Shares issued to Walter Thomas McAndrew, Jr. ("Mr. McAndrew").
F2: Shares of the Issuer's Class B common stock, par value $0.01 per share (such shares, "Class B Shares"), have no economic value and entitle the holder to one vote per Class B Share held. One Class B Share was issued for each Class B membership interest (each, a "Class B Unit") of ER Holdings held.
F3: 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.
F4: 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.
F5: These securities are owned directly by Holdings. Mr. McAndrew may be deemed to share voting and investment power over the securities held by Holdings in his capacity as a manager of McAndrew Holdings, LLC, the general partner of Holdings. Mr. McAndrew disclaims beneficial ownership of the securities held by Holdings except to the extent of his pecuniary interest therein.
F6: The Class B Units of ER Holdings are exchangeable, at the holder's option, on a one-for-one basis into Class A Shares of the Issuer. Upon the exchange of Class B Units into Class A Shares, an equivalent number of Class B Shares will be automatically cancelled.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| June 11, 2026 Filed Sep 5, 2026 00:36 UTC | ERock, Inc. EROC · Entity 4204 | SaleClass B Units · Derivative | 93,023 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001493152-26-041632 · ownership.xml · derivative · entry 5 McAndrew Walter Thomas Jr. · CIK 0002138568 · 10% owner 10b5-1 filing: No plan indicated Ownership: Indirect · By McAndrew Holdings, Ltd. Disclosed balance after: 16,540,099 Underlying: Class A common stock, par value $0.01 · 93,023 shares Expires not disclosed F6 · derivative.exercise_price: The Class B Units of ER Holdings are exchangeable, at the holder's option, on a one-for-one basis into Class A Shares of the Issuer. Upon the exchange of Class B Units into Class A Shares, an equivalent number of Class B Shares will be automatically cancelled. F4 · kind: 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. 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. F6 · derivative.exercise_date: The Class B Units of ER Holdings are exchangeable, at the holder's option, on a one-for-one basis into Class A Shares of the Issuer. Upon the exchange of Class B Units into Class A Shares, an equivalent number of Class B Shares will be automatically cancelled. F6 · derivative.expiration_date: The Class B Units of ER Holdings are exchangeable, at the holder's option, on a one-for-one basis into Class A Shares of the Issuer. Upon the exchange of Class B Units into Class A Shares, an equivalent number of Class B Shares will be automatically cancelled. F5 · ownership.nature: These securities are owned directly by Holdings. Mr. McAndrew may be deemed to share voting and investment power over the securities held by Holdings in his capacity as a manager of McAndrew Holdings, LLC, the general partner of Holdings. Mr. McAndrew disclaims beneficial ownership of the securities held by Holdings except to the extent of his pecuniary interest therein. Read SEC document |
| June 11, 2026 Filed Sep 5, 2026 00:36 UTC | ERock, Inc. EROC · Entity 4204 | SaleClass B Units · Derivative | 372,093 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001493152-26-041632 · ownership.xml · derivative · entry 4 McAndrew Walter Thomas Jr. · CIK 0002138568 · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 5,996,469 Underlying: Class A common stock, par value $0.01 · 372,093 shares Expires not disclosed F6 · derivative.exercise_price: The Class B Units of ER Holdings are exchangeable, at the holder's option, on a one-for-one basis into Class A Shares of the Issuer. Upon the exchange of Class B Units into Class A Shares, an equivalent number of Class B Shares will be automatically cancelled. F3 · kind: 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. 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. F6 · derivative.exercise_date: The Class B Units of ER Holdings are exchangeable, at the holder's option, on a one-for-one basis into Class A Shares of the Issuer. Upon the exchange of Class B Units into Class A Shares, an equivalent number of Class B Shares will be automatically cancelled. F6 · derivative.expiration_date: The Class B Units of ER Holdings are exchangeable, at the holder's option, on a one-for-one basis into Class A Shares of the Issuer. Upon the exchange of Class B Units into Class A Shares, an equivalent number of Class B Shares will be automatically cancelled. Read SEC document |
| June 11, 2026 Filed Sep 5, 2026 00:36 UTC | ERock, Inc. EROC · Entity 4204 | OtherClass B common stock, par value $0.01 | 93,023 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001493152-26-041632 · ownership.xml · nonDerivative · entry 3 McAndrew Walter Thomas Jr. · CIK 0002138568 · 10% owner 10b5-1 filing: No plan indicated Ownership: Indirect · By McAndrew Holdings, Ltd. Disclosed balance after: 16,540,099 F2 · security: Shares of the Issuer's Class B common stock, par value $0.01 per share (such shares, "Class B Shares"), have no economic value and entitle the holder to one vote per Class B Share held. One Class B Share was issued for each Class B membership interest (each, a "Class B Unit") of ER Holdings held. F4 · kind: 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. 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. F5 · ownership.nature: These securities are owned directly by Holdings. Mr. McAndrew may be deemed to share voting and investment power over the securities held by Holdings in his capacity as a manager of McAndrew Holdings, LLC, the general partner of Holdings. Mr. McAndrew disclaims beneficial ownership of the securities held by Holdings except to the extent of his pecuniary interest therein. Read SEC document |
| June 11, 2026 Filed Sep 5, 2026 00:36 UTC | ERock, Inc. EROC · Entity 4204 | OtherClass B common stock, par value $0.01 | 372,093 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001493152-26-041632 · ownership.xml · nonDerivative · entry 2 McAndrew Walter Thomas Jr. · CIK 0002138568 · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 5,996,469 F2 · security: Shares of the Issuer's Class B common stock, par value $0.01 per share (such shares, "Class B Shares"), have no economic value and entitle the holder to one vote per Class B Share held. One Class B Share was issued for each Class B membership interest (each, a "Class B Unit") of ER Holdings held. F3 · kind: 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. 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. Read SEC document |
| June 11, 2026 Filed Sep 5, 2026 00:36 UTC | ERock, Inc. EROC · Entity 4204 | OtherClass A common stock, par value $0.01 | 50,550 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001493152-26-041632 · ownership.xml · nonDerivative · entry 1 McAndrew Walter Thomas Jr. · CIK 0002138568 · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 50,550 F1 · kind: 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 membership interests ("Class A Units") of Enchanted Rock Holdings, LLC ("ER Holdings") merged with and into the Issuer (the "Blocker Mergers"), as described in the Issuer's prospectus filed with the Securities and Exchange Commission on June 10, 2026. In connection with the Blocker Mergers, 50,550 Class A Units held by ERock Holdings GP, LLC were exchanged for 50,550 Class A Shares issued to Walter Thomas McAndrew, Jr. ("Mr. McAndrew"). 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 membership interests ("Class A Units") of Enchanted Rock Holdings, LLC ("ER Holdings") merged with and into the Issuer (the "Blocker Mergers"), as described in the Issuer's prospectus filed with the Securities and Exchange Commission on June 10, 2026. In connection with the Blocker Mergers, 50,550 Class A Units held by ERock Holdings GP, LLC were exchanged for 50,550 Class A Shares issued to Walter Thomas McAndrew, Jr. ("Mr. McAndrew"). Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.