Key facts
- This page summarizes Claudio Johannpeter's Form 3 filing for GERDAU S.A. (GGB).
- 0 reported transactions and 3 derivative rows are listed below.
- Accepted by SEC: 18 Mar 2026, 21:56.
Claudio Johannpeter - 17 Mar 2026 Form 3 Insider Report for GERDAU S.A. (GGB)
- Reporting relationship
- Vice-Chairman of Board
- Issuer ticker
- GGB
- Reported as of
- 17 Mar 2026
- Net transaction value
- $0
- Reporting owner signature
- Claudio Johannpeter
Source evidence
Original filing metadata and source links for verification.
3 source fields
Reporting owner
1 detail
Key filing fact
Claudio Johannpeter filed Form 3 for GERDAU S.A. (GGB) on 18 Mar 2026.
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
View source filing
Ownership activity is grounded in SEC Form 3 disclosures.
Reporting Owners (1)
CIK 0002121148
Primary reporting owner
Johannpeter Claudio
- Relationship
- Vice-Chairman of Board
- Address
- AVENUE DOUTORA RUTH DE CARDOSO, 8501, 8TH FLOOR, PINHEIROS, SAO PAULO, BRAZIL
- Signature
- Claudio Johannpeter
- 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
- 85,607
- Date
- 17 Mar 2026
- Ownership
- Direct
GGB
holding
Common shares
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 702,952,615
- Date
- 17 Mar 2026
- Ownership
- Remarks
- Footnotes
- F4
GGB
holding
Preferred shares
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 283
- Date
- 17 Mar 2026
- Ownership
- Preferred shares held by an immediate family member (relationship: son).
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
- 106,519
- 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
- 116,745
- Exercise price
- $18.32
- 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
- 105,670
- Exercise price
- $20.83
- Footnotes
- F3
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 4 footnotes
Footnote F1
Restricted stock units vest on February 12, 2027. Exercise price denominated in Brazilian reais (R$).
Footnote F2
Restricted stock units vest on February 12, 2028. Exercise price denominated in Brazilian reais (R$).
Footnote F3
Restricted stock units vest on February 12, 2029. Exercise price denominated in Brazilian reais (R$).
Footnote F4
See remarks below
SEC remarks
The Reporting Person has a 20% interest in Klapar Participacoes S.A.. Klapar Participacoes S.A holds a 25% equity interest in INDAC - Investimentos e Participacoes S.A. INDAC owns 57% of Grupo Gerdau Empreendimentos Ltda. INDAC holds 100% of Acoter Participacoes Ltda. Acoter Participacoes Ltda. owns the remaining 43% of Grupo Gerdau Empreendimentos Ltda. Grupo Gerdau Empreendimentos Ltda., together with INDAC, jointly controls Gerdau Metalurgica S.A. The Reporting Person disclaims beneficial ownership of the reported securities except to the extent of their pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose.