Sec Form 3 Filing - Pereboom Bryan Douglas @ Black Rock Coffee Bar, Inc. - 2025-09-12

FORM 3 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Pereboom Bryan Douglas 2. Issuer Name and Ticker or Trading Symbol Black Rock Coffee Bar, Inc. [ BRCB] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O BLACK ROCK COFFEE BAR, INC., 9170 E. BAHIA DRIVE, SUITE 101 3. Date of Earliest Transaction (MM/DD/YY) 09/12/2025 (Street) SCOTTSDALE, AZ85260 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares LLC Units ( 1 ) ( 1 ) ( 1 ) Class A Common Stock 8,499,843 I See footnote ( 4 ) Class C Common Stock ( 2 ) ( 3 ) ( 2 )( 3 ) ( 2 )( 3 ) Class A Common Stock 8,499,843 I See footnote ( 4 ) Restricted Stock Units ( 5 ) ( 5 ) ( 5 ) Class A Common Stock 2,812 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Pereboom Bryan Douglas C/O BLACK ROCK COFFEE BAR, INC. 9170 E. BAHIA DRIVE, SUITE 101 SCOTTSDALE, AZ85260 X X Signatures /s/ Sam Seiberling, Attorney in Fact for Bryan Pereboom 09/12/2025 Signature of Reporting Person Date

Explanation of Responses:

( 1 )LLC units ("LLC Units") represent the membership units of Black Rock Coffee Holdings, LLC ("Black Rock OpCo") and an equal number of shares of Class C common stock ("Class C Common Stock") of Black Rock Coffee Bar, Inc. (the "Issuer"). Holders may elect to have Black Rock OpCo redeem their LLC Units at any time on or following the closing of the Issuer's initial public offering for either shares of Class A common stock ("Class A Common Stock") on a one-for-one basis or, at the Issuer's election (determined solely by the Issuer's independent directors who are disinterested), a corresponding amount of cash, in either case, contributed to Black Rock OpCo by the Issuer, unless the Issuer elects, in its sole discretion (determined solely by the Issuer's independent directors who are disinterested), to effect such transaction as a direct exchange with the relevant holder. Upon any such redemption or exchange of LLC Units, the corresponding shares of Class C Common Stock will be cancelled. ( 2 )The Class C Common Stock is convertible at any time, at the holder's election, into Class A Common Stock on a one-for-one basis; provided that, at the Issuer's election (determined solely by the Issuer's independent directors who are disinterested), the Issuer may effect such exchange for a cash payment equal to a volume weighted average market price of one share of Class A Common Stock for each LLC Unit so redeemed. ( 3 )Each outstanding share of Class C Common Stock will automatically convert into one share of the Issuer's Class B common stock upon the earlier of (i) the ten-year anniversary of the later of the closing of the Issuer's initial public offering or the closing date of any exercise of the underwriters' option to purchase additional shares of Class A Common Stock and (ii) with respect to the Reporting Person, the date on which the aggregate number of shares of Class C Common Stock held by the Reporting Person or certain of his affiliates is less than thirty-three percent (33%) of the shares of Class C Common Stock held by the Reporting Person and certain of his affiliates as of the later of the closing of the Issuer's initial public offering or the closing date of any exercise of the underwriters' option to purchase additional shares of Class A Common Stock in the Issuer's initial public offering. ( 4 )Held by Viking Cake BR, LLC ("Viking Cake") and its wholly-owned subsidiaries, Viking Cake Fuel, LLC and Viking Cake Fuel II, LLC, for which the Reporting Person has voting and investment power. The Reporting Person disclaims beneficial ownership of the shares held by Viking Cake except to the extent of his pecuniary interest therein. ( 5 )Represents an award of restricted stock units ("RSUs"), each of which represents a contingent right to receive one share of Class A Common Stock. The RSUs vest in full on the earlier of the Issuer's 2026 annual meeting or the first anniversary of the closing of the Issuer's initial public offering.

Remarks: Exhibit 24.1 - Power of Attorney

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

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