National Steel Co (SID) director Ethel Sobrinho Miguel files Form 3

Rhea-AI Filing Summary

National Steel Co director Ethel Sobrinho Miguel has filed an initial ownership report on Form 3. The filing lists her as a director of the company but does not report any stock transactions or holdings in this excerpt, and the net trading activity is neutral.

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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^*

Ethel Sobrinho Miguel

(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 Miguel Ethel Sobrinho	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 filed for NATIONAL STEEL CO (SID) show?

The Form 3 shows that Ethel Sobrinho Miguel is a director of National Steel Co. The summary data indicates no reported purchases, sales, or other stock transactions in this filing excerpt.

Did Ethel Sobrinho Miguel buy or sell SID stock in this Form 3?

No trades are reported in this Form 3 for SID. The transaction summary shows zero buys, zero sells, and a neutral net buy/sell direction, indicating no recorded trading activity in this filing excerpt.

Does the Form 3 for SID include any derivative securities activity?

The Form 3 excerpt shows no derivative activity for SID. The derivativeSummary is empty and derivativeTransactionCount is zero, indicating no reported options, warrants, or similar instruments in this filing snippet.

What role does Ethel Sobrinho Miguel hold at NATIONAL STEEL CO (SID)?

The Form 3 identifies Ethel Sobrinho Miguel as a director of National Steel Co. She is not listed as an officer or ten percent owner in the provided data, based on the reportingPersons section.

Does the SID Form 3 footnote change how ownership is attributed?

The footnotes section for this SID Form 3 contains only a null entry in the excerpt. There is no additional information here about indirect ownership, voting power, or trading plans affecting attribution.