Ambipar Emergency Response (AMBI) CEO-CFO reports initial insider holdings

Rhea-AI Filing Summary

Ambipar Emergency Response executive Chagas Ricardo, who serves as CEO and CFO, filed an initial Form 3 reporting his beneficial ownership in the company. This filing is a baseline disclosure of his holdings as an officer and does not report any buy or sell transactions.

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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^*

Chagas Ricardo

(Last) (First) (Middle)

2346 ANGELICA AV, 5TH FLOOR,HIGIENOPOLIS

SAO PAULO-SP, BRAZIL

(Street)

S?O PAULO D5 01228200

(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)

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

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/ Ricardo Cassio Rodrigues Chagas	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.

FAQ

What does the Ambipar Emergency Response (AMBI) Form 3 filing show?

The Form 3 shows that CEO and CFO Chagas Ricardo has reported his beneficial ownership in Ambipar Emergency Response. It establishes a baseline of his holdings as a company insider for future comparison.

Did Chagas Ricardo buy or sell Ambipar (AMBI) shares in this Form 3?

No, this Form 3 does not report any share purchases or sales. It is an initial ownership statement, and the transaction summary shows zero buy, sell, or other transactional activity.

Why is Ambipar Emergency Response insider Chagas Ricardo filing Form 3?

Form 3 is required when someone becomes an officer, director, or large shareholder. As CEO and CFO of Ambipar Emergency Response, Chagas Ricardo must disclose his beneficial holdings for regulatory transparency.

Does the Ambipar (AMBI) Form 3 indicate ongoing trading by the CEO and CFO?

No, the Form 3 reflects initial beneficial ownership only. The transaction summary lists no buys, sells, exercises, gifts, or other trades, so it does not show ongoing trading activity.

How does this Ambipar Form 3 affect investors in AMBI stock?

The filing mainly improves disclosure and transparency by documenting the CEO and CFO’s ownership position. It is administrative in nature and does not itself signal any change in company performance or strategy.