First Business Financial Services, Inc. (FBIZ) insider trading

{
  "status": "OK",
  "results": [
    {
      "tickers": [
        "FBIZ"
      ],
      "issuer_cik": "0001521951",
      "owner_cik": "0001521337",
      "accession_number": "0000892712-26-000359",
      "form_type": "4",
      "filing_date": "2026-08-28",
      "period_of_report": "2026-08-27",
      "issuer_name": "FIRST BUSINESS FINANCIAL SERVICES, INC.",
      "issuer_trading_symbol": "FBIZ",
      "owner_name": "Chandler Jodi A",
      "is_director": false,
      "is_officer": true,
      "is_ten_percent_owner": false,
      "is_other": false,
      "officer_title": "Chief Human Resources Officer",
      "security_type": "non_derivative",
      "record_type": "transaction",
      "security_title": "Common Stock",
      "transaction_timeliness": "O",
      "aff_10b5_one": false,
      "transaction_date": "2026-08-27",
      "transaction_code": "S",
      "equity_swap_involved": false,
      "transaction_shares": 675,
      "transaction_price_per_share": 70.1945,
      "transaction_acquired_disposed": "D",
      "shares_owned_following_transaction": 22550,
      "transaction_value": 47381.287500000006,
      "direct_or_indirect": "D",
      "footnotes": [
        {
          "id": "F1",
          "description": "The price reported in column 4 is the weighted average sale price. These shares were sold in multiple transactions at prices ranging from $70.10 to $70.30, inclusive. The reporting person undertakes to provide to 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": [
        "FBIZ"
      ],
      "issuer_cik": "0001521951",
      "owner_cik": "0001971375",
      "accession_number": "0000892712-25-000145",
      "form_type": "4",
      "filing_date": "2025-11-10",
      "period_of_report": "2025-11-07",
      "issuer_name": "FIRST BUSINESS FINANCIAL SERVICES, INC.",
      "issuer_trading_symbol": "FBIZ",
      "owner_name": "Crampton Kevin D",
      "is_director": false,
      "is_officer": true,
      "is_ten_percent_owner": false,
      "is_other": false,
      "officer_title": "Chief Accounting Officer",
      "security_type": "non_derivative",
      "record_type": "transaction",
      "security_title": "Common Stock",
      "transaction_timeliness": "O",
      "aff_10b5_one": false,
      "transaction_date": "2025-11-07",
      "transaction_code": "P",
      "equity_swap_involved": false,
      "transaction_shares": 71,
      "transaction_price_per_share": 51.4,
      "transaction_acquired_disposed": "A",
      "shares_owned_following_transaction": 1892,
      "transaction_value": 3649.4,
      "direct_or_indirect": "D"
    }
  ]
}

// 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.