Braskem director files initial Form 3

BRASKEM SA filed an initial insider ownership report for director Chambriard Magda Maria de Regina.

Rhea-AI Filing Summary

BRASKEM SA filed an initial insider ownership report for director Chambriard Magda Maria de Regina. This Form 3 identifies her as a director of the company but does not list any share purchases, sales, or other insider transactions.

The filing shows no reported derivative positions or other equity-related holdings in this snapshot, serving mainly as a baseline disclosure of her status as a reporting person.

Key Figures

Buy transactions: 0 Sell transactions: 0 Derivative transactions: 0 +1 more

4 metrics

Buy transactions 0 Insider buyCount in Form 3 transaction summary

Sell transactions 0 Insider sellCount in Form 3 transaction summary

Derivative transactions 0 derivativeTransactionCount in Form 3 transaction summary

Net shares bought or sold 0 netBuySellShares in Form 3 transaction summary

Key Terms

Form 3, reporting person, transaction summary

3 terms

Form 3 regulatory

"INSIDER FILING DATA (Form 3):"

Form 3 is the initial public filing that officers, directors and large shareholders must submit to report their ownership of a company’s securities when they become insiders. It acts like an opening inventory sheet that gives investors a starting point to see who holds significant stakes and to spot later trades or potential conflicts of interest, helping assess insider confidence and transparency.

reporting person regulatory

""reportingPersons": [ { "name": "Chambriard Magda Maria de Regina""

transaction summary financial

""transactionSummary": { "buyCount": 0, "sellCount": 0"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the Braskem (BAK) Form 3 filing show?

The Form 3 for Braskem (BAK) identifies Chambriard Magda Maria de Regina as a company director. It reports no insider share purchases, sales, or derivative holdings, serving mainly as a baseline ownership disclosure at the time of filing.

Did the Braskem (BAK) director buy or sell shares in this Form 3?

No. The Form 3 for Braskem (BAK) shows zero buy and sell transactions. The transaction summary lists no purchases, sales, exercises, gifts, or other insider trades associated with the director in this filing.

Are any derivative securities reported in the Braskem (BAK) Form 3?

No derivative positions are reported. The filing’s derivative summary is empty and derivative transaction count is zero, indicating no options, warrants, or other derivative securities are disclosed for the director in this Form 3 snapshot.

Who is the reporting person in Braskem (BAK)’s Form 3?

The reporting person is Chambriard Magda Maria de Regina, identified as a director of Braskem SA. The filing establishes her as an insider subject to reporting rules, even though no specific holdings or transactions are listed.

Does the Braskem (BAK) Form 3 indicate any net insider trading activity?

No. The transaction summary shows netBuySellShares of 0 and a neutral netBuySellDirection. This means the Form 3 records no net insider buying or selling activity for the reporting director at this time.

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

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Accepted by SEC EDGAR 05/12/2026 - 07:42 PM Learn about SEC filing dates

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Chambriard Magda Maria de Regina

(Last) (First) (Middle)

RUA HENRIQUE VALADARES 28

19 TH FLOOR, A TOWER

(Street)

RIO DE JANEIRO RIO DE JANEIRO 20231-030

(City) (State) (Zip)

BRAZIL

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
04/29/2026

3. Issuer Name and Ticker or Trading Symbol
BRASKEM SA [ BAK ]

3a. Foreign Trading Symbol
[BRKM5]

5. If Amendment, Date of Original Filed (Month/Day/Year)

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

No securities are beneficially owned.

	Magda Maria de Regina Chambriard	05/12/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 3: SEC 1473 (03-26)