STOCK TITAN

[Form 3/A] GERDAU S.A. Amended Initial Statement of Beneficial Ownership

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
3/A

Rhea-AI Filing Summary

GERDAU S.A. senior management member Wang Chia Yuan reports current holdings of the company’s securities. The filing shows direct ownership of 226,635 preferred shares plus an additional 882 preferred shares.

He also holds several restricted stock unit awards tied to preferred shares: 75,639 underlying shares at an exercise price of $4.04 expiring on March 1, 2029; 102,580 underlying shares at $2.83 expiring on March 1, 2028; 184,494 underlying shares at $3.57 expiring on July 31, 2027; and 76,817 underlying shares at $3.58 expiring on March 1, 2027. Footnotes indicate these restricted stock units vest on March 1, 2027, July 31, 2027, March 1, 2028 and March 1, 2029, respectively, in the form of American Depositary Receipts.

Positive

  • None.

Negative

  • None.
Insider Wang Chia Yuan
Role null
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, null); Preferred shares — 882 shares (Direct, null)
Footnotes (1)
  1. American Depositary Receipts. 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).
Preferred shares holding 226,635 preferred shares Direct ownership reported
Additional preferred shares 882 preferred shares Separate direct holding
RSU tranche 1 75,639 underlying shares at $4.04 Restricted Stock Units, expire March 1, 2029
RSU tranche 2 102,580 underlying shares at $2.83 Restricted Stock Units, expire March 1, 2028
RSU tranche 3 184,494 underlying shares at $3.57 Restricted Stock Units, expire July 31, 2027
RSU tranche 4 76,817 underlying shares at $3.58 Restricted Stock Units, expire March 1, 2027
Restricted Stock Units financial
"security_title: "Restricted Stock Units" with underlying preferred shares."
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.
American Depositary Receipts financial
"Footnotes state restricted stock units vest into American Depositary Receipts."
A certificate traded on U.S. markets that represents ownership of shares in a foreign company, letting U.S. investors buy and sell that company as if it were listed domestically. Think of it as a local voucher for a foreign product: it makes price quotes in dollars, trades on familiar exchanges, and brings differences in liquidity, fees and legal protections that can affect returns and risk compared with buying the underlying foreign shares directly.
Preferred shares financial
"Security title listed as "Preferred shares" for direct holdings."
Preferred shares are a type of investment that gives investors priority over common shareholders when it comes to receiving dividends and getting their money back if a company is sold or liquidated. Think of them as a safer, more predictable way to earn income from a company's profits, similar to a fixed-return investment, but without voting rights. This makes preferred shares appealing to those seeking stable income with a higher claim on assets than regular stockholders.
Senior management financial
"Reporting person is described as "Senior management" of GERDAU S.A."
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SEC Form 3
FORM 3UNITED 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
Estimated average burden
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 PAULOSAO PAULO05425-070

(City)(State)(Zip)

BRAZIL

(Country)
2. Date of Event Requiring Statement (Month/Day/Year)
06/02/2026
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)
03/17/2026
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
Officer (give title below)XOther (specify below)
Senior management
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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 shares882D
Preferred shares(1)226,635D
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 ExercisableExpiration DateTitleAmount or Number of Shares
Restricted Stock Units03/01/2027(2)03/01/2027Preferred shares76,817$3.58D
Restricted Stock Units07/31/2027(3)07/31/2027Preferred shares184,494$3.57D
Restricted Stock Units03/01/2028(4)03/01/2028Preferred shares102,580$2.83D
Restricted Stock Units03/01/2029(5)03/01/2029Preferred shares75,639$4.04D
Explanation of Responses:
1. American Depositary Receipts.
2. Restricted stock units vest on March 1, 2027 (American Depositary Receipts).
3. Restricted stock units vest on July 31, 2027 (American Depositary Receipts).
4. Restricted stock units vest on March 1, 2028 (American Depositary Receipts).
5. Restricted stock units vest on March 1, 2029 (American Depositary Receipts).
/s/ Chia Yuan Wang06/03/2026
** Signature of Reporting PersonDate
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 insider holdings does GERDAU S.A. (GGB) report for Wang Chia Yuan?

The filing shows Wang Chia Yuan directly holds 226,635 preferred shares plus 882 additional preferred shares. It also lists several restricted stock unit awards that can convert into preferred shares upon vesting and exercise under specified prices and dates.

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

He holds four restricted stock unit awards over preferred shares: 75,639, 102,580, 184,494 and 76,817 underlying shares. Each award has its own exercise price, expiration date and vesting schedule, giving potential future equity exposure in GERDAU S.A.

What are the exercise prices of Wang Chia Yuan’s GGB restricted stock units?

The restricted stock units have exercise prices of $4.04, $2.83, $3.57 and $3.58 per underlying preferred share. These prices define the cost to convert each unit into preferred shares when the awards become exercisable under their terms.

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

Footnotes state that the restricted stock units vest on March 1, 2027, July 31, 2027, March 1, 2028 and March 1, 2029. Upon vesting, they are deliverable in American Depositary Receipts representing GERDAU S.A. preferred shares, subject to each award’s conditions.

How are American Depositary Receipts referenced in this GGB insider filing?

American Depositary Receipts are explicitly mentioned in the footnotes. They clarify that the restricted stock units vest into American Depositary Receipts on specific dates, providing a U.S.-traded representation of GERDAU S.A. preferred shares rather than local-market securities directly.