ERock, Inc.·4

Jun 12, 6:18 PM ET

Amthor Corey 4

4 · ERock, Inc. · Filed Jun 12, 2026

Research Summary

AI-generated summary of this filing

Updated

ERock (EROC) President Corey Amthor Sells 617,442 Units for $12.3M

What Happened
Corey Amthor, President of ERock, disposed of 617,442 Class B units to the issuer on June 11, 2026 in connection with the closing of ERock's initial public offering. The units were sold at $19.85 per unit, generating proceeds of approximately $12,256,224. The filing shows a related automatic cancellation of an equivalent number of Class B common shares held by Amthor.

Key Details

  • Transaction date: 2026-06-11; Form 4 filed 2026-06-12 (timely filing).
  • Disposition: 617,442 Class B units sold to the issuer at $19.85/unit; total ~$12,256,224.
  • Additional filing line shows a related cancellation/disposition (N/A price) reflecting the automatic cancellation of equivalent Class B common stock.
  • Post-transaction holdings: Not specified in the Form 4 filing.
  • Footnote summary:
    • F1: Sale was of Class B units to the issuer at $19.85 per unit (the IPO per-share price less Amthor’s share of offering expenses); equivalent Class B common stock was cancelled.
    • F2: The Class B units are exchangeable, at holder’s option, one-for-one into Class A common stock or cash (issuer’s election); an exchanged unit results in cancellation of the corresponding Class B common share.

Context
This was not an open-market sale but a disposition tied to the IPO closing and internal unit/share cancellations. For retail investors, note this is a company-led transaction related to the IPO structure rather than a routine insider sell in the public market; it reflects conversion/sale mechanics rather than an ordinary-market trade.

Insider Transaction Report

Form 4
Period: 2026-06-11
Amthor Corey
President
Transactions
  • Disposition to Issuer

    Class B Common Stock

    [F1]
    2026-06-11617,4424,088,432 total
  • Disposition to Issuer

    Class B Units

    [F2][F1]
    2026-06-11$19.85/sh617,442$12,256,2244,088,432 total
    Class A Common Stock (617,442 underlying)
Holdings
  • Class B Common Stock

    (indirect: By Amthor Family Holdings, Ltd.)
    1,534,876
Footnotes (2)
  • [F1]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 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.
  • [F2]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 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.
Signature
/s/ Davis Zapffe, Attorney-in-Fact for Corey Amthor|2026-06-12

Documents

1 file
  • 4
    ownership.xmlPrimary

    4