Ambipar director files initial Form 3

Ambipar Emergency Response filed an initial Form 3 for director Zanini Marco Antonio, reporting his status as an insider of the company.

Accepted by SEC EDGAR 03/17/2026 - 07:15 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Ambipar Emergency Response filed an initial Form 3 for director Zanini Marco Antonio, reporting his status as an insider of the company. The structured data show no purchases, sales, gifts, option exercises, or other equity transactions or derivative positions reported in connection with this filing.

FAQ

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

What does the Ambipar Emergency Response (AMBI) Form 3 for Zanini Marco Antonio show?

The Form 3 identifies Zanini Marco Antonio as a director of Ambipar Emergency Response and an insider for reporting purposes. The structured data indicate no reported purchases, sales, gifts, or option exercises associated with this filing and no derivative positions listed in the provided summary.

Does the Ambipar Emergency Response (AMBI) Form 3 report any insider share purchases or sales?

No insider share purchases or sales are reported in this Form 3 for Zanini Marco Antonio. The transaction section is empty, and the transaction summary shows zero buy, sell, gift, tax withholding, or restructuring events, indicating no trading activity is being disclosed here.

What insider role does Zanini Marco Antonio have at Ambipar Emergency Response (AMBI)?

Zanini Marco Antonio is reported as a director of Ambipar Emergency Response in this Form 3. He is not flagged as an officer or a ten percent owner, so his insider status in this filing is specifically tied to his position on the company’s board of directors.

Are any derivative securities reported for Zanini Marco Antonio in the Ambipar Emergency Response Form 3?

No derivative securities are reported for Zanini Marco Antonio in this filing. The derivativeSummary section is empty and the derivativeTransactionCount in the transaction summary is zero, indicating there are no options, warrants, or other derivative positions disclosed in the provided data.

Does the Ambipar Emergency Response (AMBI) Form 3 indicate any gifts or tax-withholding transactions?

The Form 3 does not indicate any gifts or tax-withholding transactions for Zanini Marco Antonio. GiftCount and taxWithholdingCount are both zero in the transaction summary, and the transactions list is empty, showing no such activities are being reported in this instance.

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

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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^*

Zanini Marco Antonio

(Last) (First) (Middle)

271/281 RUA DAS ACACIAS

JARDIM SAO PAULO, AMERICANA-SP, BRAZIL

(Street)

AMERICANA D5 13468150

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
03/17/2026

3. Issuer Name and Ticker or Trading Symbol
Ambipar Emergency Response [ AMBIQ ]

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

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

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

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.

	/s/ Marco Antonio Zanini	03/17/2026
	** 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.