Insider securities positions at Braskem (NYSE: BAK) for September 2025

Rhea-AI Filing Summary

Braskem S.A. filed a Form 6-K as a foreign private issuer, providing information on management and related persons’ trading of its securities for September 2025 under Brazilian Instruction 358, Article 11. The report lists positions in common shares, Class “A” preferred shares and American depositary receipts.

The filing also includes a standard forward-looking statements disclaimer, highlighting risks related to a geological event in Alagoas, associated legal proceedings and the impact of COVID-19 on Braskem’s operations, financial condition and results.

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 October, 2025

(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- _____.

In September/25 ( ) ( x ) Group and Related Persons ( x ) Controlling Shareholders ( ) Board of Directors ( ) Management In September/25 ( ) ( x ) Group and Related Persons ( ) Controlling Shareholders ( x ) Board of Directors ( ) Management Securities/Derivatives Securities Characteristics Share Securities/Derivatives Securities Characteristics Share Class “A” Preferred Share Share Common Share Share Class “A” Preferred Share Securities Characteristics Securities/Derivatives Share Common Share ( ) Fiscal Council Common Share Share Class “A” Preferred Share Opening Balance 226.334.623 79.182.498 Quantity Management and Related Persons’ Trading of Securities Issued by the Company Article 11 – CVM Instruction #358/2002 79.182.498 Quantity Common Share Securities/Derivatives Securities Characteristics CONSOLIDATED FORM Share Share ( ) Fiscal Council Class “A” Preferred Share the following transactions involving securities and derivatives were executed, pursuant to Article 11 - CVM Instruction #358/2002 no transactions involving securities and derivatives were executed, pursuant to Article 11 - CVM Instruction #358/2002 ( ) Technical or Advisory Bodies Opening Balance Management and Related Persons’ Trading of Securities Issued by the Company Article 11 – CVM Instruction #358/2002 - 500 the following transactions involving securities and derivatives were executed, pursuant to Article 11 - CVM Instruction #358/2002 no transactions involving securities and derivatives were executed, pursuant to Article 11 - CVM Instruction #358/2002 Quantity - 500 Closing Balance Quantity Company’s Name: Braskem S.A. ( ) Technical or Advisory Bodies Closing Balance Company’s Name: Braskem S.A. 226.334.623 In September/25 ( ) ( x ) Group and Related Persons ( ) Controlling Shareholders ( ) Board of Directors (x ) Management 94.770 In September/25 ( ) ( x ) Group and Related Persons ( ) Controlling Shareholders ( ) Board of Directors ( ) Management Other American depositary receipt Securities/Derivatives Securities Characteristics Share Common Share Share Common Share Share Class “A” Preferred Share Share Class “A” Preferred Share Securities/Derivatives Securities Characteristics Closing Balance Quantity - 200 Other American depositary receipt 94.770 ( ) Technical or Advisory Bodies Company’s Name: Braskem S.A. Opening Balance Management and Related Persons’ Trading of Securities Issued by the Company Article 11 – CVM Instruction #358/2002 167.633 Closing Balance the following transactions involving securities and derivatives were executed, pursuant to Article 11 - CVM Instruction #358/2002 no transactions involving securities and derivatives were executed, pursuant to Article 11 - CVM Instruction #358/2002 Company’s Name: Braskem S.A. the following transactions involving securities and derivatives were executed, pursuant to Article 11 - CVM Instruction #358/2002 no transactions involving securities and derivatives were executed, pursuant to Article 11 - CVM Instruction #358/2002 Quantity - 167.633 Quantity - ( ) Fiscal Council Securities/Derivatives Securities Characteristics Share Common Share Share Common Share Share Class “A” Preferred Share Share Class “A” Preferred Share Securities/Derivatives ( ) Technical or Advisory Bodies Opening Balance Quantity - 200 Management and Related Persons’ Trading of Securities Issued by the Company Article 11 – CVM Instruction #358/2002 Securities Characteristics ( x ) Fiscal Council In September/25 ( ) ( x ) Group and Related Persons ( ) Controlling Shareholders ( ) Board of Directors ( ) Management - the following transactions involving securities and derivatives were executed, pursuant to Article 11 - CVM Instruction #358/2002 no transactions involving securities and derivatives were executed, pursuant to Article 11 - CVM Instruction #358/2002 Company’s Name: Braskem S.A. ( ) Fiscal Council ( x ) Technical or Advisory Bodies Management and Related Persons’ Trading of Securities Issued by the Company Article 11 – CVM Instruction #358/2002 Opening Balance Securities/Derivatives Securities Characteristics Quantity Share Common Share Share Common Share - Share Class “A” Preferred Share 5.300 Share Class “A” Preferred Share 5.300 Closing Balance Securities/Derivatives Securities Characteristics Quantity

 

 

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: October 10, 2025

	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 does Braskem (BAK) report in its October 2025 Form 6-K?

Braskem’s Form 6-K provides information on management and related persons’ trading of company securities for September 2025. It lists holdings in common shares, Class “A” preferred shares and ADRs, as required by Brazilian Instruction 358, Article 11, plus a forward-looking statements disclaimer.

Which Braskem (BAK) securities are covered in this Form 6-K?

The report covers Braskem securities including common shares, Class “A” preferred shares and American depositary receipts. It presents consolidated information tied to management, board, fiscal council, technical or advisory bodies and related groups, in line with Brazilian Instruction 358, Article 11 disclosure requirements.

For which period does Braskem’s Form 6-K disclose insider-related data?

The Form 6-K discloses data for September 2025, referenced as “In September/25” throughout its tables. It focuses on that month’s positions and any reportable trading involving Braskem securities by management, related persons, controlling shareholders, the board, fiscal council and advisory bodies.

Why does Braskem (BAK) mention forward-looking statements in this Form 6-K?

Braskem includes a forward-looking statements disclaimer to caution that non-historical statements involve risks and uncertainties. It cites factors such as the geological event in Alagoas, related legal proceedings and COVID-19 impacts, and refers investors to its Form 20-F and subsequent Exchange Act filings.

How is Braskem’s Form 6-K filed in relation to Form 20-F or 40-F?

Braskem indicates it files annual reports under Form 20-F, marking that option in the document. The Form 6-K clarifies that, by furnishing this information, the company is not using Rule 12g3-2(b) and confirms it is a foreign private issuer under U.S. securities rules.

What regulatory framework governs the trading data in Braskem’s 6-K?

The trading and holdings data are disclosed under Article 11 of Brazilian Instruction 358/2002. This framework requires Braskem to report management and related persons’ positions and trading in its securities, including common shares, preferred shares and ADRs, and consolidate that information in periodic reports.