{
  "spec_version": "3",
  "endpoint": "ceo",
  "stock_code": "8243",
  "company_name": "そごう",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/8243/ceo/",
  "api_url": "/api/8243/ceo.json",
  "updated": "2026-09-08",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/8243/ceo/",
  "source": {
    "ceo": {
      "primary": [
        "有価証券報告書（役員の状況）"
      ],
      "extraction": "EDINET の XBRL から機械抽出した役員表を土台に、雑誌記事・社史・報道で経歴と出自を補完",
      "caveat": "在任区間は career の is_ceo_appointed が正本。退任年月は次の代の就任年月から決まる"
    }
  },
  "count": 4,
  "ceo": [
    {
      "slug": "板谷宮吉",
      "name": "板谷宮吉",
      "kana": null,
      "origin": "1954年3月に会長から社長へ移った。1955年2月期の売上高は31億3000万円",
      "prev_role": "取締役会長",
      "career": [
        {
          "company": "そごう",
          "from": "1954-03",
          "to": null,
          "roles": [
            {
              "date": "1954-03",
              "role": "取締役会長から社長へ",
              "is_ceo_appointed": true
            }
          ]
        }
      ],
      "term_start": "1954-03",
      "term_end": "1962"
    },
    {
      "slug": "mizushima-hiroo",
      "name": "水島廣雄",
      "kana": "みずしま　ひろお",
      "origin": "外部出身。日本興業銀行の出身で板谷家の縁戚。1958年に副社長、1962年に株主間の対立を収める調停役として社長へ就き、四半世紀を超えて君臨した。1995年2月に代表権を返上して社長を退き、会長として残留した",
      "origin_type": "外部出身",
      "education": "中央大学（法学博士）",
      "prev_role": "副社長",
      "career": [
        {
          "company": "そごう",
          "from": "1958",
          "to": "1995-02",
          "roles": [
            {
              "date": "1958",
              "role": "副社長"
            },
            {
              "date": "1962",
              "role": "代表取締役社長",
              "is_ceo_appointed": true
            },
            {
              "date": "1995-02",
              "role": "代表権を返上し社長を引責退任（会長として残留）",
              "is_ceo_retired": true,
              "retirement_basis": "press"
            }
          ]
        }
      ],
      "sections": {
        "tenure_summary": null,
        "management_policy": null,
        "initiatives": null
      },
      "html_url": "https://the-shashi.com/tse/8243/executives/ceo/mizushima-hiroo/",
      "term_start": "1962",
      "term_end": "1999"
    },
    {
      "slug": "yamada-kyoichi",
      "name": "山田恭一",
      "kana": "やまだ　きょういち",
      "origin": "1999年に社長へ就き、2年間で従業員2450人を削減する再建計画を策定した",
      "career": [
        {
          "company": "そごう",
          "from": "1999",
          "to": null,
          "roles": [
            {
              "date": "1999",
              "role": "代表取締役社長",
              "is_ceo_appointed": true
            }
          ]
        }
      ],
      "sections": {
        "tenure_summary": null,
        "management_policy": null,
        "initiatives": null
      },
      "html_url": "https://the-shashi.com/tse/8243/executives/ceo/yamada-kyoichi/",
      "term_start": "1999",
      "term_end": "2001-02"
    },
    {
      "slug": "wada-shigeaki",
      "name": "和田繁明",
      "kana": "わだ　しげあき",
      "origin": "外部出身。西武百貨店の再建を担った経営者で、米谷浩・前西武百貨店会長ら8名を伴って2001年2月にそごう社長へ就いた。地域ごとの品ぞろえを競う個店主義を否定し標準化を進めた",
      "origin_type": "外部出身",
      "prev_role": "西武百貨店",
      "career": [
        {
          "company": "そごう",
          "from": "2001-02",
          "to": null,
          "roles": [
            {
              "date": "2001-02",
              "role": "代表取締役社長",
              "is_ceo_appointed": true
            }
          ]
        }
      ],
      "sections": {
        "tenure_summary": null,
        "management_policy": null,
        "initiatives": null
      },
      "html_url": "https://the-shashi.com/tse/8243/executives/ceo/wada-shigeaki/",
      "term_start": "2001-02",
      "term_end": null
    }
  ]
}