Key facts
- This page summarizes Gustavo Werneck da Cunha's Form 4 filing for GERDAU S.A. (GGB).
- 1 reported transaction and 4 derivative rows are listed below.
- Accepted by SEC: 15 Jun 2026, 16:39.
Gustavo Werneck da Cunha - 12 Jun 2026 Form 4 Insider Report for GERDAU S.A. (GGB)
- Reporting relationship
- CEO and Board Member
- Issuer ticker
- GGB
- Reported as of
- 12 Jun 2026
- Net transaction value
- +$781,510
- SEC form
- 4
- Accepted by SEC
- 15 Jun 2026, 16:39:29 UTC
- Prior SEC filing
- 12 May 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/ Gustavo Werneck Da Cunha
Source evidence
Original filing metadata and source links for verification.
4 source fields
Reporting owner
1 detail
Key filing fact
Gustavo Werneck da Cunha filed Form 4 for GERDAU S.A. (GGB) on 15 Jun 2026.
Change
- Previous filing in this sequence was filed on 12 May 2026.
- Current net transaction value: +$781,510.
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
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0002120774
Primary reporting owner
Da Cunha Gustavo Werneck
- Relationship
- CEO and Board Member
- Address
- AVENUE DOUTORA RUTH DE CARDOSO, 8501, 8TH FLOOR, PINHEIROS, SAO PAULO
- Signature
- /s/ Gustavo Werneck Da Cunha
- Signature date
- 15 Jun 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
GGB
transaction
Preferred shares
Purchase
- Transaction value
- $781,510
- Shares
- +165,224
- Change %
- Price
- $4.73
- Shares after
- 165,224
- Date
- 12 Jun 2026
- Ownership
- Direct
- Footnotes
- F1
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
- 86,455
- Date
- 12 Jun 2026
- Ownership
- Direct
- Underlying class
- Preferred shares
- Underlying amount
- 86,455
- Exercise price
- $3.84
- Footnotes
- F2
GGB
holding
Derivative
Restricted Stock Units
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 152,887
- Date
- 12 Jun 2026
- Ownership
- Direct
- Underlying class
- Preferred shares
- Underlying amount
- 152,887
- Exercise price
- $3.73
- Footnotes
- F2
GGB
holding
Derivative
Restricted Stock Units
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 92,024
- Date
- 12 Jun 2026
- Ownership
- Direct
- Underlying class
- Preferred shares
- Underlying amount
- 92,024
- Exercise price
- $3.60
- Footnotes
- F2
GGB
holding
Derivative
Restricted Stock Units
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 86,598
- Date
- 12 Jun 2026
- Ownership
- Direct
- Underlying class
- Preferred shares
- Underlying amount
- 86,598
- Exercise price
- $4.10
- Footnotes
- F2
* 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 June 12, 2026 selling rate of R$5.0827 per US$1.00, as reported by the Central Bank of Brazil.
Footnote F2
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.