National Steel Co (NYSE: SID) director files routine initial Form 3

Rhea-AI Filing Summary

National Steel Co

03/23/2026 - 05:18 PM

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^*

Vieira Maia Antonio Bernardo

(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)
04/30/2025

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)

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

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 Antonio Bernanrdo Vieira Maia	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 for NATIONAL STEEL CO (SID) show?

The Form 3 shows that Vieira Maia Antonio Bernardo is a director of National Steel Co. It is an initial insider ownership statement and reports no purchases, sales, or other transactions in the company’s securities in this filing.

Did Vieira Maia Antonio Bernardo buy or sell SID shares in this Form 3?

No, this Form 3 reports no buy or sell transactions. All transaction counts, including buys, sells, exercises, gifts, and restructurings, are shown as zero, so the filing is purely an initial insider status disclosure.

What insider role is disclosed for SID in this Form 3?

The filing identifies Vieira Maia Antonio Bernardo as a director of National Steel Co. It confirms his status as a reporting person under insider rules but does not describe him as an officer or a ten percent owner in this document.

Does the SID Form 3 include any derivative security activity?

No, the Form 3 shows no derivative transactions and no remaining derivative positions. The derivative transaction count and derivativeSummary fields are empty, indicating no options, warrants, or similar instruments are reported in this filing.

Is this SID Form 3 filing a routine disclosure?

Yes, this appears to be a routine initial insider disclosure. It records the appointment or status of a director at National Steel Co and contains no major transactions, earnings data, or other events that would change the investment thesis.