Marcos Eduardo Faraco Wahrhaftig - 15 Jul 2026 Form 4 Insider Report for GERDAU S.A. (GGB)

Reporting relationship: Executive Vice President
Issuer ticker: GGB
Reported as of: 15 Jul 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 27 Aug 2026, 17:00:52 UTC
Prior SEC filing: 13 Apr 2026
Source filing: View source filing
Reporting owner signature: /s/ Marcos Eduardo Faraco Wahrhaftig

Key filing fact

Marcos Eduardo Faraco Wahrhaftig filed Form 4 for GERDAU S.A. (GGB) on 27 Aug 2026.

Key facts

This page summarizes Marcos Eduardo Faraco Wahrhaftig's Form 4 filing for GERDAU S.A. (GGB).
1 reported transaction and 6 derivative rows are listed below.
Accepted by SEC: 27 Aug 2026, 17:00.

Change

Previous filing in this sequence was filed on 13 Apr 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002120458 Primary reporting owner

Wahrhaftig Marcos Eduardo Faraco

Relationship: Executive Vice President
Address: AVENUE DOUTORA RUTH DE CARDOSO, 8501, 8TH FLOOR, PINHEIROS, SAO PAULO
Signature: /s/ Marcos Eduardo Faraco Wahrhaftig
Signature date: 27 Aug 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

GGB holding

Preferred shares

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 0
Date: 15 Jul 2026
Ownership: Direct

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

GGB transaction Derivative

Restricted Stock Units

Award

Transaction value
Shares: +107,749
Change %
Price: $3.75^*
Shares after: 107,749
Date: 15 Jul 2026
Ownership: Direct
Underlying class: Preferred shares
Underlying amount: 107,749
Exercise price: $3.75
Footnotes: F1, F2

GGB holding Derivative

Restricted Stock Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 6,395
Date: 15 Jul 2026
Ownership: Direct
Underlying class: Preferred shares
Underlying amount: 6,395
Exercise price: $3.84
Footnotes: F1

GGB holding Derivative

Restricted Stock Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 71,832
Date: 15 Jul 2026
Ownership: Direct
Underlying class: Preferred shares
Underlying amount: 71,832
Exercise price: $3.75
Footnotes: F1

GGB holding Derivative

Restricted Stock Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 229,331
Date: 15 Jul 2026
Ownership: Direct
Underlying class: Preferred shares
Underlying amount: 229,331
Exercise price: $3.73
Footnotes: F1

GGB holding Derivative

Restricted Stock Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 7,789
Date: 15 Jul 2026
Ownership: Direct
Underlying class: Preferred shares
Underlying amount: 7,789
Exercise price: $3.60
Footnotes: F1

GGB holding Derivative

Restricted Stock Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 6,850
Date: 15 Jul 2026
Ownership: Direct
Underlying class: Preferred shares
Underlying amount: 6,850
Exercise price: $4.10
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

The price is denominated in Brazilian reais and has been translated into U.S. dollars at the April 9, 2026 selling rate of R$5.0821 per US$1.00, as reported by the Central Bank of Brazil.

Footnote F2

Reflects 107,749 additional restricted stock units granted pursuant to an amendment to the reporting person long term incentive plan agreement executed on July 15, 2026, representing the difference between the 179,581 shares attributable to the plan following the amendment and the 71,832 shares previously reported.