Rafael Gamboa Lopes - 17 Mar 2026 Form 3 Insider Report for GERDAU S.A. (GGB)

Reporting relationship
Executive Vice President
Issuer ticker
GGB
Reported as of
17 Mar 2026
Net transaction value
$0
Source evidence Original filing metadata and source links for verification. 3 source fields
SEC form
3
Accepted by SEC
18 Mar 2026, 21:27:51 UTC
Source filing
View source filing
Reporting owner 1 detail
Reporting owner signature
Rafael Gamboa Lopes

Key filing fact

Rafael Gamboa Lopes filed Form 3 for GERDAU S.A. (GGB) on 18 Mar 2026.

Key facts

  • This page summarizes Rafael Gamboa Lopes's Form 3 filing for GERDAU S.A. (GGB).
  • 0 reported transactions and 6 derivative rows are listed below.
  • Accepted by SEC: 18 Mar 2026, 21:27.

Change

  • No earlier filing in this sequence is available for direct comparison.
  • 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

Official SEC source

Ownership activity is grounded in SEC Form 3 disclosures.

View source filing

Reporting Owners (1)

CIK 0002120169 Primary reporting owner

Lopes Rafael Gamboa

Relationship
Executive Vice President
Address
AVENUE DOUTORA RUTH DE CARDOSO, 8501, 8TH FLOOR, PINHEIROS, SAO PAULO, BRAZIL
Signature
Rafael Gamboa Lopes
Signature date
17 Mar 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
135,199
Date
17 Mar 2026
Ownership
Direct

Reported derivative securities

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

GGB holding Derivative

Restricted Stock Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date
17 Mar 2026
Ownership
Direct
Underlying class
Preferred shares
Underlying amount
3,570
Exercise price
$19.50
Footnotes
F1
GGB holding Derivative

Restricted Stock Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date
17 Mar 2026
Ownership
Direct
Underlying class
Preferred shares
Underlying amount
25,646
Exercise price
$19.50
Footnotes
F2
GGB holding Derivative

Restricted Stock Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date
17 Mar 2026
Ownership
Direct
Underlying class
Preferred shares
Underlying amount
5,540
Exercise price
$18.32
Footnotes
F3
GGB holding Derivative

Restricted Stock Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date
17 Mar 2026
Ownership
Direct
Underlying class
Preferred shares
Underlying amount
4,987
Exercise price
$18.32
Footnotes
F4
GGB holding Derivative

Restricted Stock Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date
17 Mar 2026
Ownership
Direct
Underlying class
Preferred shares
Underlying amount
34,356
Exercise price
$18.32
Footnotes
F5
GGB holding Derivative

Restricted Stock Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date
17 Mar 2026
Ownership
Direct
Underlying class
Preferred shares
Underlying amount
6,683
Exercise price
$20.83
Footnotes
F6
* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 6 footnotes

Footnote F1

Restricted stock units vest on February 12, 2027. Exercise price denominated in Brazilian reais (R$).

Footnote F2

Restricted stock units vest on February 22, 2027. Exercise price denominated in Brazilian reais (R$).

Footnote F3

Restricted stock units vest on April 1, 2027. Exercise price denominated in Brazilian reais (R$).

Footnote F4

Restricted stock units vest on February 12, 2028. Exercise price denominated in Brazilian reais (R$).

Footnote F5

Restricted stock units vest on February 21, 2028. Exercise price denominated in Brazilian reais (R$).

Footnote F6

Restricted stock units vest on February 12, 2029. Exercise price denominated in Brazilian reais (R$).

We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. Manage preferences to update or revoke optional consent for future visits. For more information, see our Privacy Policy .