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 January, 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 ☐

INCORPORATION BY REFERENCE

This Report on Form 6-K shall be deemed to be incorporated by reference into the shelf registration statement on Form F-3 (Registration Number 333-276870) of Brera Holdings PLC, operating under the name Solmate Infrastructure (the “Company”) (NASDAQ: SLMT), a Solana-based crypto infrastructure company, filed by the Company with the U.S. Securities and Exchange Commission (the “SEC”) on February 5, 2024 and declared effective by the SEC on February 13, 2024 (the “Shelf Registration Statement”), and into each prospectus or prospectus supplement outstanding under the Shelf Registration Statement, and the registration statement on Form F-3ASR (Registration Number 333-291657) of the Company, filed by the Company with the SEC on November 19, 2025 (the “Resale Registration Statement”), and into each prospectus or prospectus supplement outstanding under the Resale Registration Statement, to the extent not superseded by documents or reports subsequently filed or furnished by the Company under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended.

INFORMATION CONTAINED IN THIS FORM 6-K REPORT

~~Resignation~~Head of aFootball ~~Director~~Operations

OnIn December ~~28,~~ 2025~~, Alberto~~ ~~Libanori~~the ~~gave~~Company ~~written~~retained ~~notice~~Avram ofGrant as ~~his~~a ~~resignation~~consultant ~~from~~to ~~the~~assist ~~board~~in ofthe ~~directors~~streamlining ~~(the~~and ~~“Board”)~~operating efficiency of the Company,’s ~~effective immediately.~~football Mrbusinesses. ~~Libanori~~On ~~will~~January ~~continue~~23, ~~to serve as~~ 2026 the Company’s ~~Head~~announced ofthat ~~Operations.~~ Mr. ~~Libanori’s~~Grant ~~decision~~would tobe ~~resign~~given ~~from~~ the ~~Board~~title ~~was~~of ~~not~~Head ~~the~~of ~~result~~Football ofOperations ~~any~~in ~~disagreement~~connection ~~relating~~with his continued service to the Company’s ~~operations,~~as ~~policies~~a ~~or practices~~consultant.

~~Appointment~~Mr. Grant possesses significant experience in the coaching, management and operation of professional football clubs. Mr. Grant established his career in Israel, winning numerous domestic trophies and managing the national team for four years before moving to the English Premier League. He gained international prominence at Chelsea, where he led the club to the 2008 Champions League and League Cup finals. Since then, he has managed Portsmouth and West Ham, guided the Ghana national team to a ~~Director~~major semi-final, and held various technical roles across Europe and Asia.

OnThe ~~December~~Company ~~31,~~plans ~~2025, the~~to ~~Company~~transfer ~~appointed~~Mr. ~~Erez~~Dan ~~Simha~~McClory’s and toMr. ~~serve~~Alberto asLibanori’s anformer ~~independent~~responsibilities ~~director~~related onto the ~~Board~~management of the Company,’s ~~and~~football asoperations ato ~~member~~Mr. ~~of and the chair of~~Avram ~~the Board’s Audit Committee~~Grant.

~~There~~Resignation ~~are no other arrangements or understandings between Mr. Simha and any other person pursuant to which Mr. Simha was appointed as a director~~ of the Company. There are also no family relationships between Mr. Simha and any director or executive officer of the Company, and Mr. Simha has no direct or indirect material interest in any transaction required to be disclosed pursuant to Item 404(a) of Regulation S-K.Director

~~Mr.~~On ~~Simha~~January ~~will~~19, ~~participate~~2026, Daniel McClory gave written notice inof his resignation from the Company’s ~~standard~~board ~~non-employee~~of ~~director~~directors ~~compensation~~(the ~~arrangements~~“Board”), effective immediately. Mr. McClory’s resignation was not a result of any disagreement relating to the Company’s operations, policies or practices.

~~The~~Concurrently ~~Company~~with ~~will~~his ~~enter~~resignation, the Company and ~~into~~Mr. ~~its~~McClory ~~standard~~entered ~~form~~into ofa ~~indemnification~~consulting agreement ~~with~~dated January 19, 2026, pursuant to which Mr. ~~Simha~~McClory will provide advisory and consulting services to the Company’s executive team related to strategic and capital markets matters, including service as the chairman of the Company’s capital markets advisory board.

~~Mr. Simha~~Resignation ~~brings over 20 years~~ of ~~experience~~Head ~~and a proven track record~~ of scaling high-tech disruptive companies in multiple industries, including food-tech, blockchain, 3D printing, and digital assets. Mr. Simha currently serves as a senior financial advisor to a payment processing workforce solution private company, as a board member and treasurer of The Village LTD, a 501(c) nonprofit corporation, and as a board member of Fold Holdings, Inc., a bitcoin financial services company. From 2022 through 2023, Mr. Simha served as the Chief Financial Officer at Genius Group (NYSE: GNS). From 2020 through 2022, Mr. Simha served as a director and President and Chief Financial Officer at Apifiny Group (NASDAQ: MFH). From 2019 through 2020, Mr. Simha served as Chief Financial Officer and Chief Operating Officer at Kangaroo (Roo Inc.). From 2017 through 2019, Mr. Simha served as Chief Financial Officer and Chief Operating Officer at Food-Tech. From 2011 through 2017, Mr. Simha served as Chief Financial Officer and Chief Operating Officer at STRATASYS LTD (NASDAQ: SSYS). From 2004 through 2011, Mr. Simha served in various capacities, including Vice President of Customer Support, Finance and Operations, Orbotech Pacific Vice President of Finance and Operations, Corporate Vice President of Finance and Chief Financial Officer, at Orbotech LTD. (NASDAQ: ORBK). Mr. Simha holds a Bachelors Degree in Economics and Accounting and a Masters Degree in Business Administration and Finance from Tel Aviv University. He is a Certified Public Accountant.

Exhibit No.		Description
10.1		Independent Director Agreement between Brera Holdings PLC and Erez Simha.

On January 19, 2026, Alberto Libanori gave written notice of his resignation as the Head of Operations of the Company, effective as of January 31, 2026. Mr. Libanori’s resignation was not a result of any disagreement relating to the Company’s operations, policies or practices.

2Validator Services Agreement

On January 22, 2026 the Company and RockawayX Infra Ltd. (”RockawayX”) entered into a Validator Services Agreement (the “Service Agreement”) pursuant to which RockawayX will continue to operate and maintain a Solana validator (the “Validator”) within the United Arab Emirates to support Solmate’s staking of SOL via non-custodial delegation. Under the Service Agreement, RockawayX is responsible for all costs and activities related to the operation, monitoring, and maintenance of the Validator, including hardware, facilities, networking, electricity, software, upgrades, and incident response. The Service Agreement does not require the Company to stake any of its Solana to the Validator, or to stake exclusively to the Validator. The Validator will operate under the branding “Solmate powered by RockawayX” or similar, as mutually agreed.

Pursuant to the Service Agreement, Solmate is entitled to 100% of protocol-native staking rewards generated on its delegated SOL, while RockawayX is entitled to 100% of non-staking economic benefits, such as MEV-related income and other fees.

RockawayX will adhere to industry-standard security and operational practices and is required to notify Solmate without undue delay of any material outage, slashing event, key compromise, or other material incident affecting the Validator.

The Service Agreement continues until terminated. Either party may terminate the Service Agreement with 30 days’ written notice in the event of a material breach not cured within 15 days.

The foregoing summary of the Service Agreement does not purport to be complete and is qualified in its entirety by reference to the full text of such agreement, will be included as an exhibit to Solmate’s Annual Report on Form 20-F for the year ended December 31, 2025, which will be filed with the U.S. Securities and Exchange Commission.

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.

Date: January 2, 2026	BRERA HOLDINGS PLC
Date: January 23, 2026	BRERA HOLDINGS PLC
	By:	/s/ Marco Santori
		Marco Santori
		Chief Executive Officer

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