Investor acquires 5.013% class B preferred stake in Braskem (NYSE: BAK)

Rhea-AI Filing Summary

Braskem S.A. reports that individual investor and lawyer Victor Adler has acquired 24,000 class “B” preferred shares, equal to 5.013% of the company’s total class “B” preferred shares, based on trades completed up to January 16, 2026. According to Adler, the stake is held with a strictly investment objective, meaning he is not signaling any other stated strategic intent in this notice.

The company also includes a standard caution about forward-looking statements, noting that its expectations can be affected by economic conditions, industry factors and specific issues such as the geological event in Alagoas and COVID-19 impacts, as discussed in detail in its Form 20-F and subsequent SEC filings.

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 No. 1-14862 )

BRASKEM S.A.

(Exact Name as Specified in its Charter)

N/A

(Translation of registrant's name into English)

Rua Eteno, 1561, Polo Petroquimico de Camacari
Camacari, Bahia - CEP 42810-000 Brazil

(Address of principal executive offices)

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

Form 20-F ___X___       Form 40-F ______

Indicate by check mark if the registrant is submitting the Form 6-K
in paper as permitted by Regulation S-T Rule 101(b)(1). _____

Indicate by check mark if the registrant is submitting the Form 6-K
in paper as permitted by Regulation S-T Rule 101(b)(7). _____

Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

Yes ______       No ___X___

If "Yes" is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82- _____.

 

NOTICE TO THE MARKET

ACQUISITON OF RELEVANT EQUITY INTEREST

São Paulo, January 21, 2026 - BRASKEM S.A. (B3: BRKM3, BRKM5 and BRKM6; NYSE: BAK; LATIBEX: XBRK) ("Company"), in compliance with Article 12 of CVM Resolution 44/21, hereby inform its shareholders and the market that it received correspondence from Mr. Victor Adler, an individual investor, lawyer, registered with the OAB/RJ under number 21.439, inscribed in the roll of individual taxpayer registry (CPF) under number 203.840.097-00, informs that, as a result of operations carried out on the share exchange up to January 16, 2026, he acquired 24,000 class “B” preferred shares representing 5.013% of the total class “B” preferred shares issued by the Company. Mr. Victor Adler also informed that the objective of the acquisition and participation is strictly of investment.

The full notification received is attached to this Notice to the Market.

Additional information can be obtained from the Investor Relations Department by phone at +55 (11) 3576-9531 or by e-mail braskem-ri@braskem.com.br.

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 21, 2026

	BRASKEM S.A.
	By:	/s/     Felipe Montoro Jens
		Name:	Felipe Montoro Jens
		Title:	Chief Financial Officer

DISCLAIMER ON FORWARD-LOOKING STATEMENTS

This report on Form 6-K may contain forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These statements are statements that are not historical facts, and are based on our management’s current view and estimates of future economic and other circumstances, industry conditions, company performance and financial results, including any potential or projected impact of the geological event in Alagoas and related legal proceedings and of COVID-19 on our business, financial condition and operating results. The words “anticipates,” “believes,” “estimates,” “expects,” “plans” and similar expressions, as they relate to the company, are intended to identify forward-looking statements. Statements regarding the potential outcome of legal and administrative proceedings, the implementation of principal operating and financing strategies and capital expenditure plans, the direction of future operations and the factors or trends affecting our financial condition, liquidity or results of operations are examples of forward-looking statements. Such statements reflect the current views of our management and are subject to a number of risks and uncertainties, many of which are outside of the our control. There is no guarantee that the expected events, trends or results will actually occur. The statements are based on many assumptions and factors, including general economic and market conditions, industry conditions, and operating factors. Any changes in such assumptions or factors, including the projected impact of the geological event in Alagoas and related legal proceedings and the unprecedented impact of COVID-19 pandemic on our business, employees, service providers, stockholders, investors and other stakeholders, could cause actual results to differ materially from current expectations. Please refer to our annual report on Form 20-F for the year ended December 31, 2019 filed with the SEC, as well as any subsequent filings made by us pursuant to the Exchange Act, each of which is available on the SEC’s website (www.sec.gov), for a full discussion of the risks and other factors that may impact any forward-looking statements in this presentation.

FAQ

What stake did Victor Adler disclose in Braskem (BAK)?

Victor Adler disclosed that he acquired 24,000 class “B” preferred shares of Braskem, representing 5.013% of the total class “B” preferred shares issued by the company.

What is the purpose of Victor Adlers investment in Braskem (BAK)?

Victor Adler informed Braskem that the objective of his acquisition and participation is strictly investment, with no additional purpose stated in this notice.

Which class of Braskem (BAK) shares did the investor acquire?

The disclosed purchase involves class B preferred shares of Braskem, not common shares or other classes.

Why did Braskem (BAK) issue this Form 6-K notice?

Braskem furnished this Form 6-K to inform shareholders and the market, in line with Article 12 of CVM Resolution 44/21, that an investor surpassed the relevant equity interest threshold in its class B preferred shares.

Does this Form 6-K change Braskems guidance or outlook?

This Form 6-K primarily discloses an ownership stake by an individual investor. It also reiterates Braskems forward-looking statement disclaimer, stating that results may differ due to economic conditions, legal proceedings related to the geological event in Alagoas, and COVID-19 impacts.

Where can investors get more information about Braskem (BAK)?

Investors can contact Braskems Investor Relations Department by phone at +55 (11) 3576-9531 or by e-mail at braskem-ri@braskem.com.br, and can also review its Form 20-F and subsequent SEC filings.