X0202 SCHEDULE 13G/A 0000919574-26-003228 0001784547 XXXXXXXX LIVE 1 Class A Common Stock, par value $0.00001 per share 06/30/2026 0002068577 Black Rock Coffee Bar, Inc. 092244102 9170 E. Bahia Drive, Suite 101 Scottsdale AZ 85260 Rule 13d-1(b) Woodline Partners LP DE 0.00 0.00 0.00 0.00 0.00 N 0 IA PN Black Rock Coffee Bar, Inc. 9170 E. Bahia Drive, Suite 101, Scottsdale, AZ 85260 This statement is filed by Woodline Partners LP ("Woodline Partners" or the "Reporting Person"), a Delaware limited partnership, and the investment adviser to Woodline Master Fund LP and Woodline Spire Master Fund LP (together, the "Woodline Funds"), with respect to the shares of Class A common stock, par value $0.00001 per share ("Class A Common Stock"), of Black Rock Coffee Bar, Inc. that were directly held by the Woodline Funds. The address of the business office of Woodline Partners is 4 Embarcadero Center, Suite 3450, San Francisco, CA 94111. Woodline Partners is a Delaware limited partnership. N IA The information required by Item 4(a) is set forth in Row 9 of the cover page for the Reporting Person and is incorporated herein by reference. 0.0% The information required by Item 4(c)(i) is set forth in Row 5 of the cover page for the Reporting Person and is incorporated herein by reference. The information required by Item 4(c)(ii) is set forth in Row 6 of the cover page for the Reporting Person and is incorporated herein by reference. The information required by Item 4(c)(iii) is set forth in Row 7 of the cover page for the Reporting Person and is incorporated herein by reference. The information required by Item 4(c)(iv) is set forth in Row 8 of the cover page for the Reporting Person and is incorporated herein by reference. N Y Y Y Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11. Woodline Partners LP /s/ Erin Mullen 08/14/2026