Samuel W. Weatherford and Gordon Scharf Report Significant Stakes in Black Rock Coffee Bar, Inc.

Samuel W. Weatherford and Gordon Scharf have filed a joint Schedule 13G regarding their holdings in Black Rock Coffee Bar, Inc. Samuel W. Weatherford reports beneficial ownership of 3,415,380 shares of Class A Common Stock, representing a 16.3% stake. This ownership is derived from LLC Units in Black Rock Coffee Holdings, LLC held by the Bryan D. Pereboom 2021 Trust, the Nicole R. Pereboom 2021 Trust, and Aureata Fuel, LLC. Mr. Weatherford serves as the investment advisor for the Pereboom Trusts and shares control over Aureata Fuel, LLC. Gordon Scharf reports beneficial ownership of 2,904,695 shares, or 14.3%, through his role as manager of Aureata Fuel, LLC. The LLC Units are redeemable for Class A Common Stock on a one-for-one basis. The filers certify that the securities were acquired for investment purposes and not to influence or change the control of the issuer. The filing includes a Joint Filing Agreement between the two parties, dated April 1, 2026.