{
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  "company_name": "西日本フィナンシャルホールディングス",
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  "updated": "2026-09-05",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/7189/",
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    "extraction": "有価証券報告書の沿革を基礎に、社史・報道で補完",
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      "date": "1924/8",
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      "event": "福岡無尽を設立",
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      "date": "1944/12",
      "importance": 2,
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      "date": "1951/10",
      "importance": 1,
      "event": "西日本相互銀行に商号変更",
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      "date": "1951/10",
      "importance": 1,
      "event": "福岡無尽が福岡相互銀行に商号変更",
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      "date": "1955/8",
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      "event": "福岡証券取引所に上場",
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      "date": "1973/4",
      "importance": 1,
      "event": "東京・大阪の各証券取引所第二部に上場",
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    {
      "date": "1974/2",
      "importance": 1,
      "event": "東京・大阪の各証券取引所第一部に指定替え",
      "source": null
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      "date": "1984/4",
      "importance": 2,
      "event": "高千穂相互銀行を吸収合併",
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    {
      "date": "1984/4",
      "importance": 3,
      "event": "普通銀行に転換",
      "source": null
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    {
      "date": "1984/4",
      "importance": 1,
      "event": "西日本銀行に商号変更",
      "source": null
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    {
      "date": "1989/2",
      "importance": 2,
      "event": "福岡相互銀行が普通銀行に転換",
      "source": null
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    {
      "date": "1989/2",
      "importance": 1,
      "event": "福岡相互銀行が福岡シティ銀行に商号変更",
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      "date": "2004/10",
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      "event": "福岡シティ銀行と合併し西日本シティ銀行に商号変更",
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      "event": "長崎銀行を完全子会社化",
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      "event": "株式移転により西日本フィナンシャルHDを設立",
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      "date": "2016/10",
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      "event": "プライム市場に移行",
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      "event": "シティアスコムを子会社化",
      "source": "有価証券報告書"
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      "date": "2022/10",
      "importance": 2,
      "event": "九州リースサービスを持分法適用関連会社化",
      "source": "有価証券報告書"
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