SEC Form 4 · accession 0002121148-26-000001
GERDAU S.A. · GGB
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Claudio Johannpeter
Other
Period of report
Sep 23, 2026
Accepted (ET)
Sep 25, 2026 · 4:32 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001073404
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Preferred sharesF1 | Sep 23, 2026 | S | 85,607 | $4.94 | D | 0 | D | |
| Common sharesF5 | holding | — | — | — | 702,952,615 | I | Remarks | |
| Preferred shares | holding | — | — | — | 283 | I | Preferred shares held by an immediate family member (relationship: son). |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Restricted Stock UnitsF1,F2 | $3.79 | holding | — | — | — | Feb 12, 2027 | Feb 12, 2027 | Preferred shares | 106,519 | 106,519 | D |
| Restricted Stock UnitsF1,F3 | $3.56 | holding | — | — | — | Feb 12, 2028 | Feb 12, 2028 | Preferred shares | 116,745 | 116,745 | D |
| Restricted Stock UnitsF1,F4 | $4.05 | holding | — | — | — | Feb 12, 2029 | Feb 12, 2029 | Preferred shares | 105,670 | 105,670 | D |
Explanation of responses
- F1The price is denominated in Brazilian reais and has been translated into U.S. dollars at the September 23, 2026 selling rate of R$5.1414 per US$1.00, as reported by the Central Bank of Brazil.
- F2Restricted stock units vest on February 12, 2027.
- F3Restricted stock units vest on February 12, 2028.
- F4Restricted stock units vest on February 12, 2029.
- F5The 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.