Nexa Resources names new insider on Form 3

Nexa Resources S.A. filed an initial ownership report for Mauro Davi Boletta, who serves as Senior VP Smelting Operations.

Accepted by SEC EDGAR 03/19/2026 - 06:12 AM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Nexa Resources S.A. filed an initial ownership report for Mauro Davi Boletta, who serves as Senior VP Smelting Operations. This Form 3 filing establishes him as an insider subject to ongoing reporting of future share holdings and transactions in Nexa Resources S.A. securities.

FAQ

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

What does the Nexa Resources (NEXA) Form 3 filing for Mauro Davi Boletta mean?

The Form 3 filing identifies Mauro Davi Boletta as an insider of Nexa Resources S.A. It formally subjects him to ongoing disclosure rules, requiring public reporting of future changes in his ownership of Nexa securities as Senior VP Smelting Operations.

Did Mauro Davi Boletta buy or sell Nexa Resources (NEXA) shares in this Form 3?

This Form 3 for Nexa Resources S.A. does not report any buy or sell transactions. It functions purely as an initial statement of beneficial ownership, formally registering Boletta as an insider for future transaction reporting obligations.

What is Mauro Davi Boletta’s role at Nexa Resources (NEXA) in this filing?

The filing lists Mauro Davi Boletta as an officer of Nexa Resources S.A. with the title Senior VP Smelting Operations. This executive position makes him a reporting person subject to insider ownership and transaction disclosure under SEC rules.

Does the Nexa Resources (NEXA) Form 3 indicate Mauro Davi Boletta is a 10% owner?

The Form 3 data show that Mauro Davi Boletta is not classified as a ten percent owner of Nexa Resources S.A. Instead, his reporting status is based on being an officer, specifically Senior VP Smelting Operations, triggering insider reporting requirements.

Why is a Form 3 important for Nexa Resources (NEXA) insiders?

Form 3 is the initial ownership statement required when someone becomes an insider of Nexa Resources S.A. It creates a baseline for future Form 4 or Form 5 reports, improving transparency around insider holdings and subsequent share transactions in the company.

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^*

Boletta Mauro Davi

(Last) (First) (Middle)

37A AVENUE J.F. KENNEDY

(Street)

LUXEMBOURG GRAND DUCHY OF LUXEMBOURG L-1855

(City) (State) (Zip)

LUXEMBOURG

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
03/18/2026

3. Issuer Name and Ticker or Trading Symbol
Nexa Resources S.A. [ NEXA ]

3a. Foreign Trading Symbol

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

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Senior VP Smelting Operations

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/ Felipe da Silva Azevedo, attorney-in-fact for Mauro Davi Boletta	03/18/2026
	** 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)