What direct preferred share holdings are reported for Wang Chia Yuan in Gerdau (GGB)?

The Form 3 shows direct ownership of two preferred share positions: 882 shares and 227,895 shares. These figures represent already-issued preferred shares held directly, separate from the unvested restricted stock unit awards disclosed in the filing.

Senior manager of Gerdau (NYSE: GGB) reports RSU and share holdings

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

GERDAU S.A. senior manager Wang Chia Yuan filed an initial Form 3 showing existing equity interests in the company. The filing lists several restricted stock unit awards over preferred shares, with exercise prices of $3.58, $3.57, $2.83 and $4.04, each tied to specific vesting dates between March 1, 2027 and March 1, 2029.

The restricted stock units relate to underlying preferred shares in amounts of 76,817, 184,494, 102,580 and 75,639 shares, all held directly. In addition, the Form 3 reports direct holdings of 882 and 227,895 preferred shares. The disclosure reflects current ownership and unexercised equity awards rather than new market transactions.

Insider Trade Summary

6 transactions reported

Mixed 6 txns

Insider Wang Chia Yuan

Role Insider

Type	Security	Shares	Price	Value
holding	Restricted Stock Units	--	--	--
holding	Restricted Stock Units	--	--	--
holding	Restricted Stock Units	--	--	--
holding	Restricted Stock Units	--	--	--
holding	Preferred shares	--	--	--
holding	Preferred shares	--	--	--

Holdings After Transaction: Restricted Stock Units — 76,817 shares (Direct); Preferred shares — 882 shares (Direct)

Footnotes (1)

Restricted stock units vest on March 1, 2027 (American Depositary Receipts). Restricted stock units vest on July 31, 2027 (American Depositary Receipts). Restricted stock units vest on March 1, 2028 (American Depositary Receipts). Restricted stock units vest on March 1, 2029 (American Depositary Receipts). American Depositary Receipts.

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03/18/2026 - 09:32 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

OMB APPROVAL

OMB Number:			3235-0104
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hours per response:			0.5

1. Name and Address of Reporting Person^*

Wang Chia Yuan

(Last)

(First)

(Middle)

AVENUE DOUTORA RUTH DE CARDOSO, 8501

8TH FLOOR, PINHEIROS

(Street)

SAO PAULO

05425-070

(City)

(State)

(Zip)

BRAZIL

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
03/17/2026

3. Issuer Name and Ticker or Trading Symbol
GERDAU S.A. [ GGB ]

3a. Foreign Trading Symbol
[GGBR]

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

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

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

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)
Preferred shares	882	D
Preferred shares⁽⁵⁾	227,895	D

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)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	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)
Restricted Stock Units	⁽¹⁾	03/01/2027	Preferred shares	76,817	$3.58	D
Restricted Stock Units	⁽²⁾	07/31/2027	Preferred shares	184,494	$3.57	D
Restricted Stock Units	⁽³⁾	03/01/2028	Preferred shares	102,580	$2.83	D
Restricted Stock Units	⁽⁴⁾	03/01/2029	Preferred shares	75,639	$4.04	D

Explanation of Responses:

1. Restricted stock units vest on March 1, 2027 (American Depositary Receipts).

2. Restricted stock units vest on July 31, 2027 (American Depositary Receipts).

3. Restricted stock units vest on March 1, 2028 (American Depositary Receipts).

4. Restricted stock units vest on March 1, 2029 (American Depositary Receipts).

5. American Depositary Receipts.

	Chia Yuan Wang	03/17/2026
	** 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)

Source: View Original Filing on SEC EDGAR

FAQ

What does the Gerdau (GGB) Form 3 filed by Wang Chia Yuan show?

The Form 3 reports Wang Chia Yuan’s existing equity interests in Gerdau. It lists multiple restricted stock unit awards over preferred shares plus direct preferred share holdings, establishing his initial beneficial ownership position as a member of senior management.

What restricted stock units does Wang Chia Yuan hold in Gerdau (GGB)?

He holds several restricted stock unit awards over preferred shares, with underlying amounts of 76,817, 184,494, 102,580 and 75,639 shares. Each award has its own exercise price and future vesting schedule, reflecting unexercised equity-based compensation.

When do Wang Chia Yuan’s Gerdau (GGB) restricted stock units vest?

The footnotes state that the restricted stock units vest on March 1, 2027, July 31, 2027, March 1, 2028 and March 1, 2029. These vesting dates apply to awards represented as American Depositary Receipts tied to Gerdau’s preferred shares.

Are there buy or sell transactions in this Gerdau (GGB) Form 3 filing?

No buy or sell transactions are indicated. The entries are classified as holdings, with transaction codes not identifying purchases or sales. The disclosure focuses on existing restricted stock units and preferred share positions rather than new market trades.