ERock’s passive ownership amendment leaves Walter Thomas McAndrew with 31.9% beneficial ownership, or 22,587,118 shares, unchanged after a correction to share allocations. The update matters to investors because it preserves the reported size and passive status of McAndrew’s stake while clarifying ownership attributed to related holders.

Key Highlights

  • McAndrew Holdings, McAndrew Holdings, LLC and Jay Willis McAndrew each report 25.6% beneficial ownership.
  • A total of 22,536,568 Class B units can be exchanged one-for-one into Class A shares within 60 days.
  • Walter Thomas McAndrew, Jr. continues to report 31.9% beneficial ownership, representing 22,587,118 shares.
  • McAndrew’s position includes 6,047,019 shares with sole voting and dispositive power and 16,540,099 shares with shared voting and dispositive power.

ERock, Inc. (NYSE: EROC) continues to attribute 31.9% beneficial ownership to Walter Thomas McAndrew, Jr. representing 22,587,118 shares. The correction concerns how certain shares were allocated among McAndrew and related holders, not the aggregate beneficial ownership attributed to him.

McAndrew’s 31.9% Stake

McAndrew’s reported position consists of 6,047,019 Class A shares subject to his sole voting and dispositive power and 16,540,099 shares subject to shared voting and dispositive power. The sole-power total includes 50,550 Class A shares held directly and 5,996,469 Class B shares alongside the corresponding Class B units of Enchanted Rock Holdings, LLC. The reported 22,587,118 shares produce beneficial ownership of 31.9% under the stated calculation.

Related Holders Report 25.6%

McAndrew Holdings reports beneficial ownership of 16,540,099 shares, equal to 25.6%. McAndrew Holdings, LLC reports the same 16,540,099 shares and 25.6% interest, as does Jay Willis McAndrew. The reported percentages for these holders include Class A shares that McAndrew Holdings can acquire through an exchange of its Class B units.

Class B Units Can Convert

When an exchange occurs, the equivalent number of Class B shares is automatically cancelled. McAndrew Holdings’ portion is 16,540,099 units, exchangeable into 16,540,099 Class A shares within that period. The ownership calculations use 48,174,023 Class A shares outstanding as of August 7, 2026, together with the applicable Class A shares that can be acquired through the unit exchanges.