Brandon Olson reports 1,415,690 shares at Black Rock Coffee Bar (BRCB)

Rhea-AI Filing Summary

Black Rock Coffee Bar, Inc. Schedule 13G/A: Brandon J. Olson reports beneficial ownership of 1,415,690 shares of Class A Common Stock, representing 6.6% of the class.

The holding is comprised of 658,314 shares held by the Jacob V. Spellmeyer 2021 Trust and 757,376 shares held by the Juliet A. Spellmeyer 2021 Trust. Mr. Olson serves as investment advisor to those trusts and disclaims beneficial ownership except to the extent of his pecuniary interest. The percentage is based on 21,572,893 shares outstanding as of May 11, 2026.

Insights

Governance Analyst

Disclosure shows a material passive stake via advisory relationships.

Brandon J. Olson is reported as investment advisor for two irrevocable trusts holding 1,415,690 shares, or 6.6% of Class A common stock as of May 11, 2026. The filing attributes voting and dispositive power to Olson in his advisory role.

Key dependencies include the trusts' governance documents and any voting agreements; subsequent filings could change the public ownership picture if the trusts transact.

Securities Compliance Attorney

Filing reflects standard Schedule 13G/A disclosure and a disclaimer of beneficial ownership.

The cover page states Mr. Olson "may be deemed to hold voting and investment power" for shares held by the Spellmeyer Irrevocable Trusts and that he "disclaims beneficial ownership" except for pecuniary interest. This combination is common where advisory authority exists but direct ownership is held by trusts.

Relevant items to watch in future filings include any change to percentage ownership, a conversion to Schedule 13D, or amendments that remove the disclaimer language.

Key Figures

Amount beneficially owned: 1,415,690 shares Percent of class: 6.6% Shares outstanding: 21,572,893 shares +2 more

5 metrics

Amount beneficially owned 1,415,690 shares Class A Common Stock reported on Schedule 13G/A

Percent of class 6.6% Based on 21,572,893 shares outstanding as of May 11, 2026

Shares outstanding 21,572,893 shares Outstanding as of May 11, 2026 (denominator for percent)

Jacob V. Spellmeyer Trust holding 658,314 shares Held by Jacob V. Spellmeyer 2021 Trust (part of the Spellmeyer Irrevocable Trusts)

Juliet A. Spellmeyer Trust holding 757,376 shares Held by Juliet A. Spellmeyer 2021 Trust (part of the Spellmeyer Irrevocable Trusts)

Key Terms

Schedule 13G/A, beneficial ownership, sole dispositive power

3 terms

Schedule 13G/A regulatory

"Amendment No. 1 ) Black Rock Coffee Bar, Inc. Class A Common Stock"

A Schedule 13G/A is an amended public filing with the U.S. securities regulator that updates a previous Schedule 13G, disclosing when an individual or group holds a substantial (typically over 5%) stake in a company and is claiming a passive, non‑controlling intent. Investors monitor these updates because rising or falling holdings can signal changing confidence, potential future moves, or shifts in voting power — like watching a public ledger where large shareholders quietly adjust their positions.

beneficial ownership regulatory

"Amount beneficially owned: See Item 9 of the cover page."

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

sole dispositive power regulatory

"7 | Sole Dispositive Power 1,415,690.00"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/19/2026 - 08:05 AM Learn about SEC filing dates

FAQ

What stake does Brandon J. Olson report in BRCB?

He reports beneficial ownership of 1,415,690 shares, representing 6.6% of Class A Common Stock. The figure is based on 21,572,893 shares outstanding as of May 11, 2026 and is disclosed on the Schedule 13G/A.

How is Mr. Olson's reported holding structured?

The holding is comprised of 658,314 shares in the Jacob V. Spellmeyer 2021 Trust and 757,376 shares in the Juliet A. Spellmeyer 2021 Trust. Mr. Olson serves as investment advisor to those trusts.

Does Mr. Olson claim direct ownership of the shares?

No. He disclaims beneficial ownership of the shares held by the Spellmeyer Irrevocable Trusts, except to the extent of his pecuniary interest, while noting advisory voting and investment power.

What basis is used to calculate the 6.6% figure?

The percentage is calculated using 21,572,893 shares of Class A Common Stock outstanding as of May 11, 2026, which the filing cites as the denominator for the 6.6% ownership percentage.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

Black Rock Coffee Bar, Inc.

(Name of Issuer)

Class A Common Stock

(Title of Class of Securities)

092244102

(CUSIP Number)

04/17/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 092244102

1

Names of Reporting Persons

Brandon J. Olson

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 1,415,690.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 1,415,690.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,415,690.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

6.6 %

12

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person: Amount in rows 5 and 7 consists of (a) 658,314 shares of Class A Common Stock held by the Jacob V. Spellmeyer 2021 Trust and (b) 757,376 shares of Class A Common Stock held by the Juliet A. Spellmeyer 2021 Trust (together with the Jacob V. Spellmeyer 2021 Trust, the "Spellmeyer Irrevocable Trusts"). Mr. Olson serves as the investment advisor for the Spellmeyer Irrevocable Trusts. As investment advisor of the Spellmeyer Irrevocable Trusts, Mr. Olson may be deemed to hold voting and investment power with respect to the shares held by the Spellmeyer Irrevocable Trusts. Mr. Olson disclaims beneficial ownership of the shares held by the Spellmeyer Irrevocable Trusts except to the extent of his pecuniary interest therein. Percentage in row 11 is based on 21,572,893 shares of Class A Common Stock outstanding as of May 11, 2026.

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Black Rock Coffee Bar, Inc.
(b)	Address of issuer's principal executive offices: 9170 E. Bahia Drive, Suite 101, Scottsdale AZ 85260
Item 2.
(a)	Name of person filing: Brandon J. Olson
(b)	Address or principal business office or, if none, residence: c/o Black Rock Coffee Bar, Inc. 9170 E. Bahia Drive, Suite 101, Scottsdale, AZ 85260
(c)	Citizenship: See Item 4 of the cover page.
(d)	Title of class of securities: Class A Common Stock
(e)	CUSIP No.: 092244102
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: See Item 9 of the cover page.
(b)	Percent of class: See Item 11 of the cover page.
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: See Item 5 of the cover page.
	(ii) Shared power to vote or to direct the vote: See Item 6 of the cover page.
	(iii) Sole power to dispose or to direct the disposition of: See Item 7 of the cover page.
	(iv) Shared power to dispose or to direct the disposition of: See Item 8 of the cover page.
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above 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.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Brandon J. Olson

Signature:	/s/ Brandon J. Olson
Name/Title:	Brandon J. Olson
Date:	05/19/2026