SLMT 6-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16 OF THE

SECURITIES EXCHANGE ACT OF 1934

For the month of August, 2026.

Commission File Number 001-41606

BRERA HOLDINGS PLC

(Translation of registrant’s name into English)

Connaught House, 5th Floor

One Burlington Road

Dublin 4

D04 C5Y6

Ireland

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:

Form 20-F ☒ Form 40-F ☐

INFORMATION CONTAINED IN THIS FORM 6-K REPORT

On August 19, 2026, Brera Holdings PLC, operating under the name Solmate Infrastructure (the “Company”), issued a press release regarding the engagement of PwC to support its strategic expansion into AI infrastructure.

A copy of the press release is furnished as Exhibit 99.1 to this Report on Form 6-K. The information contained in the press release furnished as Exhibit 99.1 to this Report on Form 6-K shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference into any of the Company’s filings under the Securities Act of 1933, as amended, or the Exchange Act, whether made before or after the date hereof, except as shall be expressly set forth by specific reference to any such filing.

1

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

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Exhibit 99.1

Solmate Infrastructure PLC (NASDAQ: SLMT) Engages PwC to Support Strategic Expansion into AI Infrastructure

DUBLIN, Ireland — August 19, 2026 — Solmate Infrastructure PLC (NASDAQ: SLMT) (“Solmate” or the “Company”), a next-generation digital infrastructure company focused on blockchain and staking, today announced it has engaged PwC to support the strategic refinement and expansion of its operations across the artificial intelligence and digital infrastructure ecosystem.

As the convergence between artificial intelligence and crypto infrastructure accelerates, Solmate is taking decisive steps to evaluate, refine, and capture high-growth market opportunities. Under this engagement, PwC will collaborate with Solmate to conduct market analysis and strategy evaluation across key potential expansion verticals.

The strategic advisory scope is designed to assess potential avenues for growth based on comparative market analysis, valuation modeling, market acceptance, execution feasibility, and long-term strategic synergy.

“The next phase of growth for digital infrastructure depends on solving complex operational challenges in provisioning and specialized financial models,” said Ron Sade, Chief Executive Officer of Solmate. “Working with PwC allows us to stress-test our strategic roadmap across the convergence of AI & Crypto infrastructure against strict market comparables. This disciplined approach will ensure we allocate capital into the highest-yield expansion opportunities.”

“We are excited to work with Solmate and its leadership team as they shape the next frontier where digital assets, AI infrastructure, and financial innovation converge” said Nir Zepkowitz, PwC/Strategy& partner.

The engagement forms part of Solmate’s broader initiative to build institutional-grade digital and high-performance computing infrastructure, positioning the Company at the forefront of AI and crypto convergence. It follows a series of recent strategic milestones, including key partnerships with Kraken to enhance staking economics, and Anagram to expand institutional platform capabilities, as well as the launch of Solmate’s public treasury dashboard.

ENDS

About Solmate Infrastructure PLC

Solmate Infrastructure PLC (NASDAQ: SLMT) is building next-generation digital infrastructure spanning blockchain and staking. The Company is focused on creating long-term shareholder value through the ownership, operation, and optimization of mission-critical digital infrastructure assets.

Forward-Looking Statements

This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements may be identified by the use of words such as “anticipate,” “aim,” “believe,” “continue,” “could,” “estimate,” “expect,” “designed,” “intend,” “may,” “plan,” “potential,” “predict,” “project,” “should,” “target,” “will,” “would” and similar expressions. These statements include, but are not limited to, statements regarding the Company’s business strategy, future growth, prospective partnerships, the future development, expansion, scale, capabilities and economic potential of the Company’s institutional blockchain and staking infrastructure platform, the development of institutional relationships, staking economics, recurring revenue growth, market opportunities and shareholder value creation. These forward-looking statements are based on current expectations, estimates, assumptions and projections and involve known and unknown risks, uncertainties and other factors that may cause actual results to differ materially from those expressed or implied by such statements. Additional information concerning these and other risks is contained in the Company’s filings with the U.S. Securities and Exchange Commission. The Company undertakes no obligation to update any forward-looking statements except as required by applicable law.

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