NATIONAL STEEL CO (SID) executive officer files initial Form 3 insider statement

Rhea-AI Filing Summary

NATIONAL STEEL CO executive officer Barbosa Martinez Luis Fernando filed an initial Form 3 reporting his status as an officer of the company. This filing lists him as an executive officer but does not report any stock transactions or holdings, serving mainly as a baseline ownership disclosure.

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

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1. Name and Address of Reporting Person^*

Barbosa Martinez Luis Fernando

(Last) (First) (Middle)

AVENIDA BRIGADEIRO FARIA LIMA, 3400

20 ANDAR

(Street)

SAO PAULO SAO PAULO 04538-132

(City) (State) (Zip)

BRAZIL

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
12/09/2025

3. Issuer Name and Ticker or Trading Symbol
NATIONAL STEEL CO [ SID ]

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)
	Executive Officer

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/ Mayra Favero Celleguin, Attorney-in-Fact for Luis Fernando Barbosa Martinez	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)

FAQ

What does the Form 3 filing by NATIONAL STEEL CO (SID) executive Barbosa Martinez Luis Fernando mean?

The Form 3 shows Barbosa Martinez Luis Fernando is an executive officer of NATIONAL STEEL CO. It serves as an initial baseline disclosure of insider status and does not report any specific stock transactions or holdings.

Does the NATIONAL STEEL CO (SID) Form 3 show any insider buying or selling?

No, this Form 3 reports no insider transactions. The transaction summary shows zero buys, zero sells, and zero derivative exercises, indicating the filing is purely an initial ownership and status disclosure without reported trades.

What role does Barbosa Martinez Luis Fernando hold at NATIONAL STEEL CO (SID)?

Barbosa Martinez Luis Fernando is identified as an Executive Officer of NATIONAL STEEL CO. The Form 3 confirms his officer status for regulatory purposes, which subjects his future trades in the company’s securities to ongoing reporting requirements.

Why is a Form 3 important for NATIONAL STEEL CO (SID) investors?

Form 3 establishes who is an insider at NATIONAL STEEL CO for SEC reporting. While this filing shows no trades, it sets the baseline so that any future Form 4 or Form 5 filings can be compared against this initial status.

Does the NATIONAL STEEL CO (SID) Form 3 include derivative or options positions?

No, the derivative section of this Form 3 is empty. The derivative summary shows zero derivative transactions and no remaining derivative positions, indicating no options or similar instruments are reported in this initial statement.