Gerdau S.A. (GGB) insider trading

{
  "status": "OK",
  "results": [
    {
      "tickers": [
        "GGB"
      ],
      "issuer_cik": "0001073404",
      "owner_cik": "0002121148",
      "accession_number": "0002121148-26-000001",
      "form_type": "4",
      "filing_date": "2026-09-25",
      "period_of_report": "2026-09-23",
      "issuer_name": "GERDAU S.A.",
      "issuer_trading_symbol": "GGB",
      "owner_name": "Johannpeter Claudio",
      "is_director": false,
      "is_officer": false,
      "is_ten_percent_owner": false,
      "is_other": true,
      "security_type": "non_derivative",
      "record_type": "transaction",
      "security_title": "Preferred shares",
      "transaction_timeliness": "O",
      "aff_10b5_one": false,
      "transaction_date": "2026-09-23",
      "transaction_code": "S",
      "equity_swap_involved": false,
      "transaction_shares": 85607,
      "transaction_price_per_share": 4.94,
      "transaction_acquired_disposed": "D",
      "shares_owned_following_transaction": 0,
      "transaction_value": 422898.58,
      "not_subject_to_section_16": false,
      "direct_or_indirect": "D",
      "footnotes": [
        {
          "id": "F1",
          "description": "The 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."
        }
      ]
    },
    {
      "tickers": [
        "GGB"
      ],
      "issuer_cik": "0001073404",
      "owner_cik": "0002120169",
      "accession_number": "0002120169-26-000001",
      "form_type": "4",
      "filing_date": "2026-09-21",
      "period_of_report": "2026-09-17",
      "issuer_name": "GERDAU S.A.",
      "issuer_trading_symbol": "GGB",
      "owner_name": "Lopes Rafael Gamboa",
      "is_director": false,
      "is_officer": false,
      "is_ten_percent_owner": false,
      "is_other": true,
      "security_type": "non_derivative",
      "record_type": "transaction",
      "security_title": "Preferred shares",
      "transaction_timeliness": "O",
      "aff_10b5_one": false,
      "transaction_date": "2026-09-17",
      "transaction_code": "S",
      "equity_swap_involved": false,
      "transaction_shares": 51800,
      "transaction_price_per_share": 5.09,
      "transaction_acquired_disposed": "D",
      "shares_owned_following_transaction": 83399,
      "transaction_value": 263662,
      "not_subject_to_section_16": false,
      "direct_or_indirect": "D",
      "footnotes": [
        {
          "id": "F1",
          "description": "The price is denominated in Brazilian reais and has been translated into U.S. dollars at the September 17, 2026 selling rate of R$5.1521 per US$1.00, as reported by the Central Bank of Brazil."
        }
      ]
    }
  ]
}

// trimmed to 2 results

The response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.