Gilder Gagnon Howe & Co. LLC Reports 3.5% New Stake in Black Rock Coffee Bar, Inc.

Gilder Gagnon Howe & Co. LLC filed a Schedule 13G on May 15, 2026, reporting a new position in Black Rock Coffee Bar, Inc. (BRCB). As of the event date on March 31, 2026, the firm beneficially owns 602,893 shares of Class A common stock, representing a 3.5% ownership stake in the company. This filing indicates an increase from a previous ownership level of 0.0%. The shares are held in the ordinary course of business, with the filer reporting shared dispositive power over the total amount and no sole voting or dispositive power. Gilder Gagnon Howe & Co. LLC is a registered broker-dealer based in New York. The filing confirms that the securities were not acquired for the purpose of changing or influencing the control of the issuer. This initial disclosure establishes the firm as a significant minority shareholder in the Scottsdale-based coffee company.