{
  "commentary": [
    {
      "heading": null,
      "paragraphs": [
        "FY69時点（旧石川島播磨重工業）では東京芝浦電気（東芝）が8.90%で筆頭、第一銀行・朝日生命・第一生命などが並び、東芝退職給付信託として2010年代まで保有が継続していた。",
        "FY24では日本マスタートラスト信託銀行16.16%・日本カストディ銀行5.41%の信託2口が筆頭化し、東芝退職給付信託口は2019年に上位10位から消失、機関投資家中心の構造へ転換している。"
      ]
    }
  ],
  "shareholders": [
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 1,
      "name": "日本トラスティ・サービス信託銀行株式会社（信託口）",
      "shareholding_ratio": 4.03,
      "shares_held": 62356000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 2,
      "name": "日本トラスティ・サービス信託銀行株式会社（三井住友信託銀行再信託分・株式会社東芝退職給付信託口）",
      "shareholding_ratio": 3.58,
      "shares_held": 55422000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 3,
      "name": "第一生命保険株式会社",
      "shareholding_ratio": 3.49,
      "shares_held": 54060000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 4,
      "name": "日本マスタートラスト信託銀行株式会社（信託口）",
      "shareholding_ratio": 3.1,
      "shares_held": 47974000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 5,
      "name": "みずほ信託銀行株式会社 退職給付信託 みずほ銀行口 再信託受託者 資産管理サービス信託銀行株式会社",
      "shareholding_ratio": 2.97,
      "shares_held": 45979000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 6,
      "name": "STATE STREET BANK AND TRUST COMPANY 505223 （常任代理人 株式会社みずほ銀行決済営業部）",
      "shareholding_ratio": 2.27,
      "shares_held": 35252000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 7,
      "name": "日本トラスティ・サービス信託銀行株式会社（信託口９）",
      "shareholding_ratio": 1.89,
      "shares_held": 29262000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 8,
      "name": "STATE STREET BANK AND TRUST COMPANY 505001 （常任代理人 株式会社みずほ銀行決済営業部）",
      "shareholding_ratio": 1.76,
      "shares_held": 27328000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 9,
      "name": "ＩＨＩ共栄会",
      "shareholding_ratio": 1.63,
      "shares_held": 25285000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 10,
      "name": "日本生命保険相互会社",
      "shareholding_ratio": 1.6,
      "shares_held": 24897000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 1,
      "name": "日本トラスティ・サービス信託銀行株式会社（三井住友信託銀行再信託分・株式会社東芝退職給付信託口）",
      "shareholding_ratio": 3.58,
      "shares_held": 55422000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 2,
      "name": "第一生命保険株式会社",
      "shareholding_ratio": 3.49,
      "shares_held": 54060000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 3,
      "name": "日本マスタートラスト信託銀行株式会社（信託口）",
      "shareholding_ratio": 3.27,
      "shares_held": 50665000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 4,
      "name": "日本トラスティ・サービス信託銀行株式会社（信託口）",
      "shareholding_ratio": 3.14,
      "shares_held": 48573000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 5,
      "name": "みずほ信託銀行株式会社 退職給付信託 みずほ銀行口 再信託受託者 資産管理サービス信託銀行株式会社",
      "shareholding_ratio": 2.97,
      "shares_held": 45979000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 6,
      "name": "STATE STREET BANK AND TRUST COMPANY 505001 （常任代理人 株式会社みずほ銀行決済営業部）",
      "shareholding_ratio": 2.8,
      "shares_held": 43454000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 7,
      "name": "STATE STREET BANK AND TRUST COMPANY 505223 （常任代理人 株式会社みずほ銀行決済営業部）",
      "shareholding_ratio": 2.6,
      "shares_held": 40350000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 8,
      "name": "日本トラスティ・サービス信託銀行株式会社（信託口９）",
      "shareholding_ratio": 1.89,
      "shares_held": 29286000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 9,
      "name": "日本トラスティ・サービス信託銀行株式会社（信託口５）",
      "shareholding_ratio": 1.82,
      "shares_held": 28232000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 10,
      "name": "ＩＨＩ共栄会",
      "shareholding_ratio": 1.65,
      "shares_held": 25572000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 1,
      "name": "日本マスタートラスト信託銀行株式会社（信託口）",
      "shareholding_ratio": 5.45,
      "shares_held": 8425000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 2,
      "name": "日本トラスティ・サービス信託銀行株式会社（信託口）",
      "shareholding_ratio": 4.49,
      "shares_held": 6938000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 3,
      "name": "日本トラスティ・サービス信託銀行株式会社（三井住友信託銀行再信託分・株式会社東芝退職給付信託口）",
      "shareholding_ratio": 3.58,
      "shares_held": 5542000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 4,
      "name": "第一生命保険株式会社",
      "shareholding_ratio": 3.5,
      "shares_held": 5406000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 5,
      "name": "STATE STREET BANK AND TRUST COMPANY 505001 （常任代理人 株式会社みずほ銀行決済営業部）",
      "shareholding_ratio": 3.07,
      "shares_held": 4756000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 6,
      "name": "みずほ信託銀行株式会社 退職給付信託 みずほ銀行口 再信託受託者 資産管理サービス信託銀行株式会社",
      "shareholding_ratio": 2.97,
      "shares_held": 4597000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 7,
      "name": "STATE STREET BANK AND TRUST COMPANY 505223 （常任代理人 株式会社みずほ銀行決済営業部）",
      "shareholding_ratio": 1.93,
      "shares_held": 2993000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 8,
      "name": "日本トラスティ・サービス信託銀行株式会社（信託口５）",
      "shareholding_ratio": 1.9,
      "shares_held": 2936000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 9,
      "name": "日本トラスティ・サービス信託銀行株式会社（信託口９）",
      "shareholding_ratio": 1.89,
      "shares_held": 2930000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 10,
      "name": "STATE STREET BANK WEST CLIENT - TREATY 505234 （常任代理人 株式会社みずほ銀行決済営業部）",
      "shareholding_ratio": 1.71,
      "shares_held": 2642000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 1,
      "name": "日本マスタートラスト信託銀行株式会社（信託口）",
      "shareholding_ratio": 6.79,
      "shares_held": 10503000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 2,
      "name": "日本トラスティ・サービス信託銀行株式会社（信託口）",
      "shareholding_ratio": 5.09,
      "shares_held": 7879000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 3,
      "name": "日本トラスティ・サービス信託銀行株式会社（三井住友信託銀行再信託分・株式会社東芝退職給付信託口）",
      "shareholding_ratio": 3.58,
      "shares_held": 5542000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 4,
      "name": "第一生命保険株式会社",
      "shareholding_ratio": 3.49,
      "shares_held": 5406000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 5,
      "name": "STATE STREET BANK AND TRUST COMPANY 505001 （常任代理人 株式会社みずほ銀行決済営業部）",
      "shareholding_ratio": 2.99,
      "shares_held": 4634000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 6,
      "name": "みずほ信託銀行株式会社 退職給付信託 みずほ銀行口 再信託受託者 資産管理サービス信託銀行株式会社",
      "shareholding_ratio": 2.97,
      "shares_held": 4597000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 7,
      "name": "日本トラスティ・サービス信託銀行株式会社（信託口９）",
      "shareholding_ratio": 2.46,
      "shares_held": 3813000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 8,
      "name": "日本トラスティ・サービス信託銀行株式会社（信託口５）",
      "shareholding_ratio": 1.95,
      "shares_held": 3015000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 9,
      "name": "STATE STREET BANK AND TRUST COMPANY 505223 （常任代理人 株式会社みずほ銀行決済営業部）",
      "shareholding_ratio": 1.84,
      "shares_held": 2844000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 10,
      "name": "ＩＨＩ共栄会",
      "shareholding_ratio": 1.64,
      "shares_held": 2545000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 1,
      "name": "日本マスタートラスト信託銀行株式会社（信託口）",
      "shareholding_ratio": 8.27,
      "shares_held": 12330000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 2,
      "name": "日本トラスティ・サービス信託銀行株式会社（信託口）",
      "shareholding_ratio": 7.22,
      "shares_held": 10770000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 3,
      "name": "第一生命保険株式会社",
      "shareholding_ratio": 3.62,
      "shares_held": 5406000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 4,
      "name": "みずほ信託銀行株式会社 退職給付信託 みずほ銀行口 再信託受託者 資産管理サービス信託銀行株式会社",
      "shareholding_ratio": 3.08,
      "shares_held": 4597000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 5,
      "name": "日本トラスティ・サービス信託銀行株式会社（信託口５）",
      "shareholding_ratio": 1.97,
      "shares_held": 2937000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 6,
      "name": "STATE STREET BANK AND TRUST COMPANY 505001 （常任代理人 株式会社みずほ銀行決済営業部）",
      "shareholding_ratio": 1.93,
      "shares_held": 2882000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 7,
      "name": "ＩＨＩ共栄会",
      "shareholding_ratio": 1.79,
      "shares_held": 2677000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 8,
      "name": "住友生命保険相互会社",
      "shareholding_ratio": 1.51,
      "shares_held": 2262000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 9,
      "name": "日本トラスティ・サービス信託銀行株式会社（信託口９）",
      "shareholding_ratio": 1.49,
      "shares_held": 2233000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 10,
      "name": "ＩＨＩ従業員持株会",
      "shareholding_ratio": 1.48,
      "shares_held": 2214000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 1,
      "name": "株式会社日本カストディ銀行（信託口）",
      "shareholding_ratio": 8.85,
      "shares_held": 13201000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 2,
      "name": "日本マスタートラスト信託銀行株式会社（信託口）",
      "shareholding_ratio": 8.84,
      "shares_held": 13188000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 3,
      "name": "第一生命保険株式会社",
      "shareholding_ratio": 3.62,
      "shares_held": 5406000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 4,
      "name": "みずほ信託銀行株式会社 退職給付信託 みずほ銀行口 再信託受託者 株式会社日本カストディ銀行",
      "shareholding_ratio": 3.08,
      "shares_held": 4597000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 5,
      "name": "株式会社日本カストディ銀行（信託口９）",
      "shareholding_ratio": 2.1,
      "shares_held": 3141000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 6,
      "name": "ＩＨＩ共栄会",
      "shareholding_ratio": 1.84,
      "shares_held": 2755000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 7,
      "name": "ＩＨＩ従業員持株会",
      "shareholding_ratio": 1.66,
      "shares_held": 2480000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 8,
      "name": "JP MORGAN CHASE BANK 380634 （常任代理人 株式会社みずほ銀行決済営業部）",
      "shareholding_ratio": 1.62,
      "shares_held": 2415000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 9,
      "name": "住友生命保険相互会社",
      "shareholding_ratio": 1.51,
      "shares_held": 2262000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 10,
      "name": "株式会社日本カストディ銀行（信託口５）",
      "shareholding_ratio": 1.38,
      "shares_held": 2061000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 1,
      "name": "日本マスタートラスト信託銀行株式会社（信託口）",
      "shareholding_ratio": 15.74,
      "shares_held": 23902000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 2,
      "name": "株式会社日本カストディ銀行（信託口）",
      "shareholding_ratio": 9.44,
      "shares_held": 14336000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 3,
      "name": "第一生命保険株式会社",
      "shareholding_ratio": 3.56,
      "shares_held": 5406000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 4,
      "name": "みずほ信託銀行株式会社 退職給付信託 みずほ銀行口 再信託受託者 株式会社日本カストディ銀行",
      "shareholding_ratio": 3.02,
      "shares_held": 4597000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 5,
      "name": "ＪＰモルガン証券株式会社",
      "shareholding_ratio": 1.93,
      "shares_held": 2937000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 6,
      "name": "ＩＨＩ共栄会",
      "shareholding_ratio": 1.81,
      "shares_held": 2759000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 7,
      "name": "ＩＨＩ従業員持株会",
      "shareholding_ratio": 1.69,
      "shares_held": 2571000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 8,
      "name": "住友生命保険相互会社",
      "shareholding_ratio": 1.5,
      "shares_held": 2284000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 9,
      "name": "MLI FOR CLIENT GENERAL OMNI NON COLLATERAL NON TREATY－PB （常任代理人 ＢＯＦＡ証券株式会社）",
      "shareholding_ratio": 1.09,
      "shares_held": 1665000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 10,
      "name": "STATE STREET BANK AND TRUST COMPANY 505103 （常任代理人 株式会社みずほ銀行決済営業部）",
      "shareholding_ratio": 1.09,
      "shares_held": 1658000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 1,
      "name": "日本マスタートラスト信託銀行株式会社（信託口）",
      "shareholding_ratio": 14.45,
      "shares_held": 21952000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 2,
      "name": "株式会社日本カストディ銀行（信託口）",
      "shareholding_ratio": 8.12,
      "shares_held": 12339000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 3,
      "name": "みずほ信託銀行株式会社 退職給付信託 みずほ銀行口 再信託受託者 株式会社日本カストディ銀行",
      "shareholding_ratio": 2.11,
      "shares_held": 3218000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 4,
      "name": "STATE STREET BANK AND TRUST COMPANY 505001 (常任代理人 株式会社みずほ銀行決済営業部)",
      "shareholding_ratio": 2.05,
      "shares_held": 3124000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 5,
      "name": "ＩＨＩ共栄会",
      "shareholding_ratio": 1.82,
      "shares_held": 2774000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 6,
      "name": "第一生命保険株式会社",
      "shareholding_ratio": 1.77,
      "shares_held": 2703000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 7,
      "name": "ＩＨＩ従業員持株会",
      "shareholding_ratio": 1.71,
      "shares_held": 2600000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 8,
      "name": "住友生命保険相互会社",
      "shareholding_ratio": 1.5,
      "shares_held": 2284000
    },
    {
      "FY": "FY22",
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      "shares_held": 230000,
      "total_shares": 26000000,
      "source": "株式会社年鑑 昭和31年版"
    },
    {
      "FY": "FY55",
      "period": "1955/9",
      "company_name_at_period": "石川島重工業",
      "rank": 9,
      "name": "安田火災海上",
      "shareholding_ratio": null,
      "shares_held": 222900,
      "total_shares": 26000000,
      "source": "株式会社年鑑 昭和31年版"
    },
    {
      "FY": "FY55",
      "period": "1955/9",
      "company_name_at_period": "石川島重工業",
      "rank": 10,
      "name": "東京証券業協会",
      "shareholding_ratio": null,
      "shares_held": 210600,
      "total_shares": 26000000,
      "source": "株式会社年鑑 昭和31年版"
    },
    {
      "FY": "FY69",
      "period": "1970/3",
      "company_name_at_period": "石川島播磨重工業",
      "rank": 1,
      "name": "東京芝浦電気",
      "shareholding_ratio": 8.9,
      "shares_held": 68514260,
      "total_shares": null,
      "source": "日本企業要覧 1970年版"
    },
    {
      "FY": "FY69",
      "period": "1970/3",
      "company_name_at_period": "石川島播磨重工業",
      "rank": 2,
      "name": "第一銀行",
      "shareholding_ratio": 2.97,
      "shares_held": 22893306,
      "total_shares": null,
      "source": "日本企業要覧 1970年版"
    },
    {
      "FY": "FY69",
      "period": "1970/3",
      "company_name_at_period": "石川島播磨重工業",
      "rank": 3,
      "name": "朝日生命保険",
      "shareholding_ratio": 2.6,
      "shares_held": 20000000,
      "total_shares": null,
      "source": "日本企業要覧 1970年版"
    },
    {
      "FY": "FY69",
      "period": "1970/3",
      "company_name_at_period": "石川島播磨重工業",
      "rank": 3,
      "name": "第一生命保険",
      "shareholding_ratio": 2.6,
      "shares_held": 20000000,
      "total_shares": null,
      "source": "日本企業要覧 1970年版"
    },
    {
      "FY": "FY69",
      "period": "1970/3",
      "company_name_at_period": "石川島播磨重工業",
      "rank": 5,
      "name": "ユナイテッド・エンジニアリング・アンド・ファウンドリー・カンパニー",
      "shareholding_ratio": 2.35,
      "shares_held": 18111600,
      "total_shares": null,
      "source": "日本企業要覧 1970年版"
    },
    {
      "FY": "FY69",
      "period": "1970/3",
      "company_name_at_period": "石川島播磨重工業",
      "rank": 6,
      "name": "日本生命保険",
      "shareholding_ratio": 2.08,
      "shares_held": 16000133,
      "total_shares": null,
      "source": "日本企業要覧 1970年版"
    },
    {
      "FY": "FY69",
      "period": "1970/3",
      "company_name_at_period": "石川島播磨重工業",
      "rank": 7,
      "name": "千代田生命保険",
      "shareholding_ratio": 2.08,
      "shares_held": 16000000,
      "total_shares": null,
      "source": "日本企業要覧 1970年版"
    },
    {
      "FY": "FY69",
      "period": "1970/3",
      "company_name_at_period": "石川島播磨重工業",
      "rank": 8,
      "name": "住友生命保険",
      "shareholding_ratio": 2.06,
      "shares_held": 15833333,
      "total_shares": null,
      "source": "日本企業要覧 1970年版"
    },
    {
      "FY": "FY69",
      "period": "1970/3",
      "company_name_at_period": "石川島播磨重工業",
      "rank": 9,
      "name": "日本興業銀行",
      "shareholding_ratio": 1.8,
      "shares_held": 13866666,
      "total_shares": null,
      "source": "日本企業要覧 1970年版"
    },
    {
      "FY": "FY69",
      "period": "1970/3",
      "company_name_at_period": "石川島播磨重工業",
      "rank": 10,
      "name": "第百生命保険",
      "shareholding_ratio": 1.56,
      "shares_held": 12000000,
      "total_shares": null,
      "source": "日本企業要覧 1970年版"
    },
    {
      "FY": "FY74",
      "period": "1975/3",
      "company_name_at_period": "石川島播磨重工業",
      "rank": 1,
      "name": "東京芝浦電気",
      "shareholding_ratio": 5.8,
      "shares_held": 48514860,
      "total_shares": null,
      "source": "日本企業要覧 1975年版"
    },
    {
      "FY": "FY74",
      "period": "1975/3",
      "company_name_at_period": "石川島播磨重工業",
      "rank": 2,
      "name": "第一勧業銀行",
      "shareholding_ratio": 3.4,
      "shares_held": 28825306,
      "total_shares": null,
      "source": "日本企業要覧 1975年版"
    },
    {
      "FY": "FY74",
      "period": "1975/3",
      "company_name_at_period": "石川島播磨重工業",
      "rank": 3,
      "name": "日本生命保険",
      "shareholding_ratio": 3,
      "shares_held": 25700100,
      "total_shares": null,
      "source": "日本企業要覧 1975年版"
    },
    {
      "FY": "FY74",
      "period": "1975/3",
      "company_name_at_period": "石川島播磨重工業",
      "rank": 4,
      "name": "三光汽船",
      "shareholding_ratio": 3,
      "shares_held": 25474000,
      "total_shares": null,
      "source": "日本企業要覧 1975年版"
    },
    {
      "FY": "FY74",
      "period": "1975/3",
      "company_name_at_period": "石川島播磨重工業",
      "rank": 5,
      "name": "第一生命保険",
      "shareholding_ratio": 3,
      "shares_held": 25000000,
      "total_shares": null,
      "source": "日本企業要覧 1975年版"
    },
    {
      "FY": "FY74",
      "period": "1975/3",
      "company_name_at_period": "石川島播磨重工業",
      "rank": 6,
      "name": "朝日生命保険",
      "shareholding_ratio": 2.7,
      "shares_held": 23000000,
      "total_shares": null,
      "source": "日本企業要覧 1975年版"
    },
    {
      "FY": "FY74",
      "period": "1975/3",
      "company_name_at_period": "石川島播磨重工業",
      "rank": 7,
      "name": "住友生命保険",
      "shareholding_ratio": 1.9,
      "shares_held": 16426000,
      "total_shares": null,
      "source": "日本企業要覧 1975年版"
    },
    {
      "FY": "FY74",
      "period": "1975/3",
      "company_name_at_period": "石川島播磨重工業",
      "rank": 8,
      "name": "千代田生命保険",
      "shareholding_ratio": 1.9,
      "shares_held": 16000000,
      "total_shares": null,
      "source": "日本企業要覧 1975年版"
    },
    {
      "FY": "FY74",
      "period": "1975/3",
      "company_name_at_period": "石川島播磨重工業",
      "rank": 9,
      "name": "日本興業銀行",
      "shareholding_ratio": 1.6,
      "shares_held": 13866666,
      "total_shares": null,
      "source": "日本企業要覧 1975年版"
    },
    {
      "FY": "FY74",
      "period": "1975/3",
      "company_name_at_period": "石川島播磨重工業",
      "rank": 10,
      "name": "三井信託銀行",
      "shareholding_ratio": 1.5,
      "shares_held": 12763403,
      "total_shares": null,
      "source": "日本企業要覧 1975年版"
    },
    {
      "FY": "FY79",
      "period": "1980/3",
      "company_name_at_period": "石川島播磨重工業",
      "rank": 1,
      "name": "東京芝浦電気",
      "shareholding_ratio": 4.37,
      "shares_held": 55422000,
      "total_shares": 1268191000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY79",
      "period": "1980/3",
      "company_name_at_period": "石川島播磨重工業",
      "rank": 2,
      "name": "日本生命保険",
      "shareholding_ratio": 3.58,
      "shares_held": 45400000,
      "total_shares": 1268191000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY79",
      "period": "1980/3",
      "company_name_at_period": "石川島播磨重工業",
      "rank": 3,
      "name": "第一勧業銀行",
      "shareholding_ratio": 3.41,
      "shares_held": 43237000,
      "total_shares": 1268191000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY79",
      "period": "1980/3",
      "company_name_at_period": "石川島播磨重工業",
      "rank": 4,
      "name": "第一生命保険",
      "shareholding_ratio": 3.27,
      "shares_held": 41500000,
      "total_shares": 1268191000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY79",
      "period": "1980/3",
      "company_name_at_period": "石川島播磨重工業",
      "rank": 5,
      "name": "朝日生命保険",
      "shareholding_ratio": 2.82,
      "shares_held": 35807000,
      "total_shares": 1268191000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY79",
      "period": "1980/3",
      "company_name_at_period": "石川島播磨重工業",
      "rank": 6,
      "name": "三光汽船",
      "shareholding_ratio": 2.75,
      "shares_held": 34830000,
      "total_shares": 1268191000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY79",
      "period": "1980/3",
      "company_name_at_period": "石川島播磨重工業",
      "rank": 7,
      "name": "住友生命保険",
      "shareholding_ratio": 2.28,
      "shares_held": 28970000,
      "total_shares": 1268191000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY79",
      "period": "1980/3",
      "company_name_at_period": "石川島播磨重工業",
      "rank": 8,
      "name": "千代田生命保険",
      "shareholding_ratio": 1.85,
      "shares_held": 23507000,
      "total_shares": 1268191000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY79",
      "period": "1980/3",
      "company_name_at_period": "石川島播磨重工業",
      "rank": 9,
      "name": "従業員持株会",
      "shareholding_ratio": 1.65,
      "shares_held": 20862000,
      "total_shares": 1268191000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY79",
      "period": "1980/3",
      "company_name_at_period": "石川島播磨重工業",
      "rank": 10,
      "name": "日本興業銀行",
      "shareholding_ratio": 1.64,
      "shares_held": 20799000,
      "total_shares": 1268191000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY05",
      "period": "2006/3",
      "company_name_at_period": "石川島播磨重工業",
      "rank": 1,
      "name": "日本トラスティ・サービス信託銀行（三井アセット信託銀行再信託分・株式会社東芝退職給付信託口）",
      "shareholding_ratio": 4.26,
      "shares_held": 55422000,
      "total_shares": null,
      "source": "有価証券報告書（2006年3月期）"
    },
    {
      "FY": "FY05",
      "period": "2006/3",
      "company_name_at_period": "石川島播磨重工業",
      "rank": 2,
      "name": "第一生命保険",
      "shareholding_ratio": 4.15,
      "shares_held": 54001000,
      "total_shares": null,
      "source": "有価証券報告書（2006年3月期）"
    },
    {
      "FY": "FY05",
      "period": "2006/3",
      "company_name_at_period": "石川島播磨重工業",
      "rank": 3,
      "name": "日本トラスティ・サービス信託銀行",
      "shareholding_ratio": 3.56,
      "shares_held": 46239000,
      "total_shares": null,
      "source": "有価証券報告書（2006年3月期）"
    },
    {
      "FY": "FY05",
      "period": "2006/3",
      "company_name_at_period": "石川島播磨重工業",
      "rank": 4,
      "name": "みずほ信託退職給付信託みずほ銀行口再信託受託者資産管理サービス信託",
      "shareholding_ratio": 3.36,
      "shares_held": 43680000,
      "total_shares": null,
      "source": "有価証券報告書（2006年3月期）"
    },
    {
      "FY": "FY05",
      "period": "2006/3",
      "company_name_at_period": "石川島播磨重工業",
      "rank": 5,
      "name": "日本生命保険",
      "shareholding_ratio": 2.62,
      "shares_held": 34040000,
      "total_shares": null,
      "source": "有価証券報告書（2006年3月期）"
    },
    {
      "FY": "FY05",
      "period": "2006/3",
      "company_name_at_period": "石川島播磨重工業",
      "rank": 6,
      "name": "日本マスタートラスト信託銀行",
      "shareholding_ratio": 2.17,
      "shares_held": 28289000,
      "total_shares": null,
      "source": "有価証券報告書（2006年3月期）"
    },
    {
      "FY": "FY05",
      "period": "2006/3",
      "company_name_at_period": "石川島播磨重工業",
      "rank": 7,
      "name": "住友生命保険",
      "shareholding_ratio": 2.04,
      "shares_held": 26596000,
      "total_shares": null,
      "source": "有価証券報告書（2006年3月期）"
    },
    {
      "FY": "FY05",
      "period": "2006/3",
      "company_name_at_period": "石川島播磨重工業",
      "rank": 8,
      "name": "三井住友海上火災保険",
      "shareholding_ratio": 1.71,
      "shares_held": 22268000,
      "total_shares": null,
      "source": "有価証券報告書（2006年3月期）"
    },
    {
      "FY": "FY05",
      "period": "2006/3",
      "company_name_at_period": "石川島播磨重工業",
      "rank": 9,
      "name": "石川島播磨重工業共栄会",
      "shareholding_ratio": 1.64,
      "shares_held": 21335000,
      "total_shares": null,
      "source": "有価証券報告書（2006年3月期）"
    },
    {
      "FY": "FY05",
      "period": "2006/3",
      "company_name_at_period": "石川島播磨重工業",
      "rank": 10,
      "name": "チェース・マンハッタン・バンク・ジーティーエス・クライアンツ・アカウント・エスクロウ",
      "shareholding_ratio": 1.61,
      "shares_held": 20994000,
      "total_shares": null,
      "source": "有価証券報告書（2006年3月期）"
    },
    {
      "FY": "FY09",
      "period": "2010/3",
      "company_name_at_period": "ＩＨＩ",
      "rank": 1,
      "name": "日本トラスティ・サービス信託銀行（中央三井アセット信託銀行再信託分・株式会社東芝退職給付信託口）",
      "shareholding_ratio": 3.77,
      "shares_held": 55422000,
      "total_shares": null,
      "source": "有価証券報告書（2010年3月期）"
    },
    {
      "FY": "FY09",
      "period": "2010/3",
      "company_name_at_period": "ＩＨＩ",
      "rank": 2,
      "name": "第一生命保険",
      "shareholding_ratio": 3.68,
      "shares_held": 54060000,
      "total_shares": null,
      "source": "有価証券報告書（2010年3月期）"
    },
    {
      "FY": "FY09",
      "period": "2010/3",
      "company_name_at_period": "ＩＨＩ",
      "rank": 3,
      "name": "日本トラスティ・サービス信託銀行（信託口）",
      "shareholding_ratio": 3.28,
      "shares_held": 48127000,
      "total_shares": null,
      "source": "有価証券報告書（2010年3月期）"
    },
    {
      "FY": "FY09",
      "period": "2010/3",
      "company_name_at_period": "ＩＨＩ",
      "rank": 4,
      "name": "みずほ信託銀行退職給付信託みずほ銀行口再信託受託者資産管理サービス信託銀行",
      "shareholding_ratio": 2.97,
      "shares_held": 43680000,
      "total_shares": null,
      "source": "有価証券報告書（2010年3月期）"
    },
    {
      "FY": "FY09",
      "period": "2010/3",
      "company_name_at_period": "ＩＨＩ",
      "rank": 5,
      "name": "日本マスタートラスト信託銀行（信託口）",
      "shareholding_ratio": 2.78,
      "shares_held": 40881000,
      "total_shares": null,
      "source": "有価証券報告書（2010年3月期）"
    },
    {
      "FY": "FY09",
      "period": "2010/3",
      "company_name_at_period": "ＩＨＩ",
      "rank": 6,
      "name": "日本生命保険",
      "shareholding_ratio": 2.32,
      "shares_held": 34095000,
      "total_shares": null,
      "source": "有価証券報告書（2010年3月期）"
    },
    {
      "FY": "FY09",
      "period": "2010/3",
      "company_name_at_period": "ＩＨＩ",
      "rank": 7,
      "name": "ＩＨＩ共栄会",
      "shareholding_ratio": 1.66,
      "shares_held": 24355000,
      "total_shares": null,
      "source": "有価証券報告書（2010年3月期）"
    },
    {
      "FY": "FY09",
      "period": "2010/3",
      "company_name_at_period": "ＩＨＩ",
      "rank": 8,
      "name": "三井住友海上火災保険",
      "shareholding_ratio": 1.51,
      "shares_held": 22268000,
      "total_shares": null,
      "source": "有価証券報告書（2010年3月期）"
    },
    {
      "FY": "FY09",
      "period": "2010/3",
      "company_name_at_period": "ＩＨＩ",
      "rank": 9,
      "name": "住友生命保険",
      "shareholding_ratio": 1.47,
      "shares_held": 21624000,
      "total_shares": null,
      "source": "有価証券報告書（2010年3月期）"
    },
    {
      "FY": "FY09",
      "period": "2010/3",
      "company_name_at_period": "ＩＨＩ",
      "rank": 10,
      "name": "みずほコーポレート銀行",
      "shareholding_ratio": 1.41,
      "shares_held": 20801000,
      "total_shares": null,
      "source": "有価証券報告書（2010年3月期）"
    },
    {
      "FY": "FY14",
      "period": "2015/3",
      "company_name_at_period": "ＩＨＩ",
      "rank": 1,
      "name": "STATE STREET BANK AND TRUST COMPANY",
      "shareholding_ratio": 4.65,
      "shares_held": 72022000,
      "total_shares": 1546799542,
      "source": "有価証券報告書（2015年3月期）"
    },
    {
      "FY": "FY14",
      "period": "2015/3",
      "company_name_at_period": "ＩＨＩ",
      "rank": 2,
      "name": "日本トラスティ・サービス信託銀行（三井住友信託銀行再信託分・株式会社東芝退職給付信託口）",
      "shareholding_ratio": 3.58,
      "shares_held": 55422000,
      "total_shares": 1546799542,
      "source": "有価証券報告書（2015年3月期）"
    },
    {
      "FY": "FY14",
      "period": "2015/3",
      "company_name_at_period": "ＩＨＩ",
      "rank": 3,
      "name": "第一生命保険",
      "shareholding_ratio": 3.49,
      "shares_held": 54060000,
      "total_shares": 1546799542,
      "source": "有価証券報告書（2015年3月期）"
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