FormFactor Inc. (FORM) insider trading

{
  "status": "OK",
  "results": [
    {
      "tickers": [
        "FORM"
      ],
      "issuer_cik": "0001039399",
      "owner_cik": "0001590177",
      "accession_number": "0001628280-26-065922",
      "form_type": "4",
      "filing_date": "2026-10-14",
      "period_of_report": "2026-10-14",
      "issuer_name": "FORMFACTOR INC",
      "issuer_trading_symbol": "FORM",
      "owner_name": "SLESSOR MIKE",
      "is_director": true,
      "is_officer": true,
      "is_ten_percent_owner": false,
      "is_other": false,
      "officer_title": "CEO",
      "security_type": "non_derivative",
      "record_type": "transaction",
      "security_title": "Common Stock",
      "transaction_timeliness": "O",
      "aff_10b5_one": true,
      "transaction_date": "2026-10-14",
      "transaction_code": "S",
      "equity_swap_involved": false,
      "transaction_shares": 1200,
      "transaction_price_per_share": 125.92,
      "transaction_acquired_disposed": "D",
      "shares_owned_following_transaction": 455596,
      "transaction_value": 151104,
      "not_subject_to_section_16": false,
      "direct_or_indirect": "D",
      "footnotes": [
        {
          "id": "F1",
          "description": "The reported sale of shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted on August 19, 2025."
        },
        {
          "id": "F4",
          "description": "Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $125.855 through $125.98. Reporting person undertakes to provide upon request by the SEC staff or a security holder of the Issuer, full information regarding the number of shares sold at each separate price."
        }
      ]
    },
    {
      "tickers": [
        "FORM"
      ],
      "issuer_cik": "0001039399",
      "owner_cik": "0001590177",
      "accession_number": "0001628280-26-065922",
      "form_type": "4",
      "filing_date": "2026-10-14",
      "period_of_report": "2026-10-14",
      "issuer_name": "FORMFACTOR INC",
      "issuer_trading_symbol": "FORM",
      "owner_name": "SLESSOR MIKE",
      "is_director": true,
      "is_officer": true,
      "is_ten_percent_owner": false,
      "is_other": false,
      "officer_title": "CEO",
      "security_type": "non_derivative",
      "record_type": "transaction",
      "security_title": "Common Stock",
      "transaction_timeliness": "O",
      "aff_10b5_one": true,
      "transaction_date": "2026-10-14",
      "transaction_code": "S",
      "equity_swap_involved": false,
      "transaction_shares": 2195,
      "transaction_price_per_share": 124.23,
      "transaction_acquired_disposed": "D",
      "shares_owned_following_transaction": 464499,
      "transaction_value": 272684.85000000003,
      "not_subject_to_section_16": false,
      "direct_or_indirect": "D",
      "footnotes": [
        {
          "id": "F1",
          "description": "The reported sale of shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted on August 19, 2025."
        },
        {
          "id": "F2",
          "description": "Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $123.87 through $124.86. Reporting person undertakes to provide upon request by the SEC\nstaff or a security holder of the Issuer, full information regarding the number of shares sold at each separate price."
        }
      ]
    }
  ]
}

// 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.