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

Rhea-AI Filing Summary

NATIONAL STEEL CO executive officer Augusto Cesar Ferreira Lara filed an initial insider ownership report on Form 3. The filing lists him as an executive officer but does not report any stock purchases, sales, option exercises, gifts, or other transactions, indicating this is a baseline disclosure of his status as an insider.

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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

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1. Name and Address of Reporting Person^*

Ferreira Lara Augusto Cesar

(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 Augusto Cesar Ferreira Lara	03/23/2026
	** 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) report?

The Form 3 reports that Augusto Cesar Ferreira Lara is an executive officer of NATIONAL STEEL CO. It serves as his initial insider ownership statement and, in this instance, does not list any stock transactions or derivative holdings.

Who is the reporting person in NATIONAL STEEL CO (SID)'s Form 3?

The reporting person is Augusto Cesar Ferreira Lara, identified as an executive officer of NATIONAL STEEL CO. He is not listed as a director or ten percent owner, and the filing focuses on his status as an insider rather than specific trades.

Does the NATIONAL STEEL CO (SID) Form 3 show any insider stock trades?

No insider stock trades are shown in this Form 3. The transaction summary indicates zero purchases, zero sales, zero exercises, and no gifts or restructurings, highlighting that this filing is purely an initial ownership and status disclosure.

Are there any derivative securities reported for the NATIONAL STEEL CO (SID) executive?

No derivative securities are reported for the executive officer in this Form 3. The derivative summary is empty and the transaction counts for derivative activity are all zero, so no options, warrants, or similar instruments are disclosed here.

What does a neutral net buy/sell direction mean in SID's Form 3?

A neutral net buy/sell direction means there were no net purchases or sales reported. For this NATIONAL STEEL CO Form 3, all buy, sell, and exercise share counts are zero, confirming that no trading activity is disclosed in the filing.