SCHEDULE 13G 0001763409 XXXXXXXX LIVE Class A common stock, par value $0.00001 per share 09/30/2025 0002068577 Black Rock Coffee Bar, Inc. 092244102 9170 E. BAHIA DRIVE, SUITE 101 SCOTTSDALE AZ 85260 Rule 13d-1(d) Cynosure Group, LLC UT 0.00 8188604.00 0.00 8188604.00 8188604.00 32.3 IA The number in Rows (6), (8) and (9) consists of (a) 316,012 shares of Class A Common Stock held by Cynosure Partners III Offshore, LP and (b) 7,875,592 shares of Class A Common Stock issuable upon the conversion of an equal number of limited liability company units ("LLC Units") of Black Rock Coffee Holdings, LLC, a Delaware limited liability company and subsidiary of the Issuer, on a one-for-one basis, and forfeiture of a corresponding number of shares of Class B Common Stock, comprised of (i) 3,514,041 shares of Class B Common Stock held by Cynosure Partners 2020, LP, (ii) 260,660 shares of Class B Common Stock held by Cynosure Partners 2020 PV, LP, (iii) 660,106 shares of Class B Common Stock held by Cynosure Partners 2020 Co-Investment, LLC (for and on behalf of Series A members), (iv) 1,247,093 shares of Class B Common Stock held by Cynosure Partners 2020 Co-Investment, LLC (for and on behalf of Series B members), and (v) 2,190,692 shares of Class B Common Stock held by Cynosure Partners III, LP. The Cynosure Group, LLC, is the manager for, and has sole voting and investment power with respect to, the shares of Class A and Class B Common Stock held by the Reporting Persons. The percentage in Row (11) is calculated assuming 17,478,452 shares of Class A common stock outstanding plus 7,875,592 shares of Class A common stock issuable in respect of an equivalent number of LLC Units and shares of Class B Common Stock held by the Reporting Persons. Cynosure Partners 2020, LP DE 0.00 3514041.00 0.00 3514041.00 3514041.00 16.7 PN The percentage in Row (11) is calculated assuming 17,478,452 shares of Class A common stock outstanding plus 3,514,041 shares of Class A common stock issuable in respect of an equivalent number of LLC Units and shares of Class B Common Stock held by Cynosure Partners 2020, LP. Cynosure Partners 2020 PV, LP DE 0.00 260660.00 0.00 260660.00 260660.00 1.5 PN The percentage in Row (11) is calculated assuming 17,478,452 shares of Class A common stock outstanding plus 260,660 shares of Class A common stock issuable in respect of an equivalent number of LLC Units and shares of Class B Common Stock held by Cynosure Partners 2020 PV, LP. Cynosure Partners 2020 Co-investment, LLC (for and on behalf of Series A members) DE 0.00 660106.00 0.00 660106.00 660106.00 3.6 OO The percentage in Row (11) is calculated assuming 17,478,452 shares of Class A common stock outstanding plus 660,106 shares of Class A common stock issuable in respect of an equivalent number of LLC Units and shares of Class B Common Stock held by Cynosure Partners 2020 Co-Investment, LLC for and on behalf of Series A members. Cynosure Partners 2020 Co-Investment, LLC (for and on behalf of Series B members) DE 0.00 1247093.00 0.00 1247093.00 1247093.00 6.7 OO The percentage in Row (11) is calculated assuming 17,478,452 shares of Class A common stock outstanding plus 1,247,093 shares of Class A common stock issuable in respect of an equivalent number of LLC Units and shares of Class B Common Stock held by Cynosure Partners 2020 Co-Investment, LLC for and on behalf of Series B members. Cynosure Partners III, LP DE 0.00 2190692.00 0.00 2190692.00 2190692.00 11.1 PN The percentage in Row (11) is calculated assuming 17,478,452 shares of Class A common stock outstanding plus 2,190,692 shares of Class A common stock issuable in respect of an equivalent number of LLC Units and shares of Class B Common Stock held by Cynosure Partners III, LP. Cynosure Partners III Offshore, LP UT 0.00 316012.00 0.00 316012.00 316012.00 1.8 PN The percentage in Row (11) is calculated assuming 17,478,452 shares of Class A common stock outstanding. Black Rock Coffee Bar, Inc. 9170 E. BAHIA DRIVE, SUITE 101, SCOTTSDALE, ARIZONA, 85260. This Statement is filed on behalf of the following persons (each, a "Reporting Person" and collectively, the "Reporting Persons"): (i) The Cynosure Group, LLC (ii) Cynosure Partners 2020, LP (iii) Cynosure Partners 2020 PV, LP (iv) Cynosure Partners 2020 Co-Investment, LLC (for and on behalf of Series A members) (v) Cynosure Partners 2020 Co-Investment, LLC (for and on behalf of Series B members) (vi) Cynosure Partners III, LP (vii) Cynosure Partners III Offshore, LP The principal business office of each Reporting Person: 111 S. Main Street, Suite 2350, Salt Lake City, UT 84111 See responses to Item 4 on each of the cover pages. Y See responses to Item 9 on each of the cover pages. The Class A and Class B shares reported herein are held by Cynosure Partners III Offshore, LP, Cynosure Partners 2020, LP, Cynosure Partners 2020 PV, LP, Cynosure Partners 2020 Co-Investment, LLC (for and on behalf of Series A members), Cynosure Partners 2020 Co-Investment, LLC (for and on behalf of Series B members),and Cynosure Partners III, LP. The Cynosure Group, LLC, is the manager for, and has sole voting and investment power with respect to, the shares of Class A and Class B common stock held by the Reporting Persons. Each of the Reporting Persons disclaims beneficial ownership of the securities of the Issuer held directly by any of the other Reporting Persons except to the extent of their pecuniary interest therein. See responses to Item 11 on each of the cover pages. See responses to Item 5 on each of the cover pages. See responses to Item 6 on each of the cover pages. See responses to Item 7 on each of the cover pages. See responses to Item 8 on each of the cover pages. Y N Y Y Y Y Y Exhibit A: Joint Filing Agreement Cynosure Group, LLC Andrew Braithwaite 11/07/2025 Cynosure Partners 2020, LP Andrew Braithwaite 11/07/2025 Cynosure Partners 2020 PV, LP Andrew Braithwaite 11/07/2025 Cynosure Partners 2020 Co-investment, LLC (for and on behalf of Series A members) Andrew Braithwaite 11/07/2025 Cynosure Partners 2020 Co-Investment, LLC (for and on behalf of Series B members) Andrew Braithwaite 11/07/2025 Cynosure Partners III, LP Andrew Braithwaite 11/07/2025 Cynosure Partners III Offshore, LP Andrew Braithwaite 11/07/2025