Materion Corporation (MTRN) insider trading

{
  "status": "OK",
  "results": [
    {
      "tickers": [
        "MTRN"
      ],
      "issuer_cik": "0001104657",
      "owner_cik": "0001231898",
      "accession_number": "0001231898-26-000011",
      "form_type": "4",
      "filing_date": "2026-09-03",
      "period_of_report": "2026-09-01",
      "issuer_name": "MATERION Corp",
      "issuer_trading_symbol": "MTRN",
      "owner_name": "LIGGETT EMILY M",
      "is_director": true,
      "is_officer": false,
      "is_ten_percent_owner": false,
      "is_other": false,
      "security_type": "non_derivative",
      "record_type": "transaction",
      "security_title": "Common Stock",
      "transaction_timeliness": "O",
      "aff_10b5_one": false,
      "transaction_date": "2026-09-01",
      "transaction_code": "S",
      "equity_swap_involved": false,
      "transaction_shares": 1012,
      "transaction_price_per_share": 232.421,
      "transaction_acquired_disposed": "D",
      "shares_owned_following_transaction": 3161,
      "transaction_value": 235210.052,
      "not_subject_to_section_16": false,
      "direct_or_indirect": "D",
      "footnotes": [
        {
          "id": "F1",
          "description": "The price reported in Column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $232.310 to $232.590, inclusive.  The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."
        }
      ]
    },
    {
      "tickers": [
        "MTRN"
      ],
      "issuer_cik": "0001104657",
      "owner_cik": "0001204034",
      "accession_number": "0001204034-26-000023",
      "form_type": "4",
      "filing_date": "2026-09-01",
      "period_of_report": "2026-08-31",
      "issuer_name": "MATERION Corp",
      "issuer_trading_symbol": "MTRN",
      "owner_name": "KHILNANI VINOD M",
      "is_director": true,
      "is_officer": false,
      "is_ten_percent_owner": false,
      "is_other": false,
      "security_type": "non_derivative",
      "record_type": "transaction",
      "security_title": "Common Stock",
      "transaction_timeliness": "O",
      "aff_10b5_one": false,
      "transaction_date": "2026-08-31",
      "transaction_code": "S",
      "equity_swap_involved": false,
      "transaction_shares": 2000,
      "transaction_price_per_share": 235.161,
      "transaction_acquired_disposed": "D",
      "shares_owned_following_transaction": 11171,
      "transaction_value": 470322,
      "not_subject_to_section_16": false,
      "direct_or_indirect": "D",
      "footnotes": [
        {
          "id": "F1",
          "description": "The price reported in Column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $234.980 to $235.830, inclusive.  The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."
        }
      ]
    }
  ]
}

// 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.