Ambipar director files initial Class B holdings

Ambipar Emergency Response director Borlenghi Tercio Junior filed an initial ownership report showing indirect holdings of Class B ordinary shares.

Accepted by SEC EDGAR 03/17/2026 - 07:11 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Ambipar Emergency Response director Borlenghi Tercio Junior filed an initial ownership report showing indirect holdings of Class B ordinary shares. These Class B shares are convertible into an equal number of Class A ordinary shares at any time, and also automatically convert to Class A upon most transfers, with no expiration on these conversion rights. The filing attributes the position to Ambipar Participations & Enterprises S.A., which is controlled by the reporting person, who formally disclaims beneficial ownership beyond any pecuniary interest.

Insider Trade Summary

Holdings reported, no transactions

Holdings

Insider Borlenghi Tercio Junior

Role Director

Type	Security	Shares	Price	Value
Holding	Class B Ordinary Shares	--	--	--

Holdings: Class B Ordinary Shares — 39,234,746 contracts (Indirect, See Footnote)

Footnotes (2)

1. F1. Each Issuer Class B ordinary share (?Class B Share?) is convertible into one Issuer Class A ordinary share (?Class A Shares?) at any time at the election of the holder. Additionally, each Class B Share will automatically convert into one Class A Share upon the registration of any transfer of such Class B, with certain exceptions. These conversion rights do not expire.
2. F2. Reflects securities held by Ambipar Participations & Enterprises S.A., which is controlled by the Reporting Person. The Reporting Person disclaims beneficial ownership of the securities reported herein, except to the extent of such Reporting Person's pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 or any other purpose.

FAQ

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

What does Ambipar Emergency Response (AMBI) Form 3 for Borlenghi Tercio Junior report?

The Form 3 reports indirect holdings of Ambipar Emergency Response Class B ordinary shares linked to Class A shares. It establishes the director’s initial beneficial ownership position and clarifies that the shares are held through Ambipar Participations & Enterprises S.A., with a pecuniary-interest-only disclaimer.

How are Ambipar Emergency Response (AMBI) Class B shares related to Class A shares?

Each Ambipar Emergency Response Class B ordinary share is convertible into one Class A ordinary share at any time at the holder’s election. Class B shares also automatically convert into Class A shares when they are transferred, subject to specific exceptions, and these conversion rights do not expire.

Who actually holds the Ambipar Emergency Response (AMBI) shares reported on this Form 3?

The shares are held by Ambipar Participations & Enterprises S.A., which is controlled by Borlenghi Tercio Junior. The reporting person disclaims beneficial ownership of the securities beyond any pecuniary interest, meaning formal ownership is attributed to the controlled entity rather than personally.

Does this Ambipar Emergency Response (AMBI) Form 3 show any insider buying or selling?

The Form 3 does not show insider buying or selling activity. It is an initial statement of beneficial ownership that records an existing indirect position in Class B shares, which are convertible into Class A shares, without reporting any new purchase, sale, or option exercise.

Are the conversion rights on Ambipar Emergency Response (AMBI) Class B shares time-limited?

The conversion rights on Ambipar Emergency Response Class B shares do not expire. Holders may convert each Class B share into one Class A share at any time, and automatic conversion into Class A occurs upon registration of most transfers, subject to defined exceptions.

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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^*

Borlenghi Tercio Junior

(Last) (First) (Middle)

2330 ANGELICA AV,5TH FLOOR,HIGIENOPOLIS

(Street)

SAO 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)

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
Class B Ordinary Shares	(1)	(1)	Class A Ordinary Shares	39,234,746	(1)	I	See Footnote(2)

Explanation of Responses:

1. Each Issuer Class B ordinary share (?Class B Share?) is convertible into one Issuer Class A ordinary share (?Class A Shares?) at any time at the election of the holder. Additionally, each Class B Share will automatically convert into one Class A Share upon the registration of any transfer of such Class B, with certain exceptions. These conversion rights do not expire.

2. Reflects securities held by Ambipar Participations & Enterprises S.A., which is controlled by the Reporting Person. The Reporting Person disclaims beneficial ownership of the securities reported herein, except to the extent of such Reporting Person's pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 or any other purpose.

	/s/Tercio Borlenghi Junior	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.