{
  "commentary": [
    {
      "heading": null,
      "paragraphs": [
        "FY15時点では日本マスタートラスト信託銀行5.17%・日本トラスティ・サービス信託銀行4.38%を筆頭に、朝日生命保険1.93%や古河機械金属1.88%など旧古河系・親密生保が中位を支える信託 + 系列 + 生保の伝統的構造だった。",
        "FY24は日本マスタートラスト信託銀行17.41%・日本カストディ銀行7.09%へ信託 2 口が大幅集中化し、古河機械金属などの旧系列法人はTop10から外れ、JPモルガン証券やモルガン・スタンレーMUFG証券などの外国系証券口が中位に並ぶ機関投資家中心の構造へ移行している。"
      ]
    }
  ],
  "shareholders": [
    {
      "FY": "FY15",
      "period": "2016/3",
      "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": 5.17,
      "shares_held": 36552000
    },
    {
      "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（信託口）",
      "shareholding_ratio": 4.38,
      "shares_held": 30982000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "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 資産管理サービス信託銀行株式会社",
      "shareholding_ratio": 3.42,
      "shares_held": 24135000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "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４）",
      "shareholding_ratio": 3.4,
      "shares_held": 23992000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 5,
      "name": "朝日生命保険相互会社",
      "shareholding_ratio": 1.93,
      "shares_held": 13650500
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 6,
      "name": "古河機械金属株式会社",
      "shareholding_ratio": 1.88,
      "shares_held": 13290455
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 7,
      "name": "BBH BOSTON CUSTODIAN FOR JAPAN VALUE EQUITY CONCENTRATED FUND A SERIES OF 620135",
      "shareholding_ratio": 1.78,
      "shares_held": 12595000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 8,
      "name": "富士電機株式会社",
      "shareholding_ratio": 1.56,
      "shares_held": 11000000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 9,
      "name": "みずほ信託銀行株式会社 退職給付信託 古河機械金属口 再信託受託者 資産管理サービス信託銀行株式会社",
      "shareholding_ratio": 1.55,
      "shares_held": 10919000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 10,
      "name": "CHASE MANHATTAN BANK GTS CLIENTS ACCOUNT ESCROW",
      "shareholding_ratio": 1.52,
      "shares_held": 10754914
    },
    {
      "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（信託口）",
      "shareholding_ratio": 7.88,
      "shares_held": 5566800
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "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": 7.02,
      "shares_held": 4959900
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "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 資産管理サービス信託銀行株式会社",
      "shareholding_ratio": 3.42,
      "shares_held": 2413500
    },
    {
      "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４）",
      "shareholding_ratio": 3.17,
      "shares_held": 2238500
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 5,
      "name": "BBH BOSTON CUSTODIAN FOR JAPAN VALUE EQUITY CONCENTRATED FUND A SERIES OF 620135",
      "shareholding_ratio": 2.07,
      "shares_held": 1465500
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 6,
      "name": "朝日生命保険相互会社",
      "shareholding_ratio": 1.93,
      "shares_held": 1365050
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 7,
      "name": "古河機械金属株式会社",
      "shareholding_ratio": 1.88,
      "shares_held": 1329045
    },
    {
      "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５）",
      "shareholding_ratio": 1.83,
      "shares_held": 1289900
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 9,
      "name": "GOVERNMENT OF NORWAY",
      "shareholding_ratio": 1.74,
      "shares_held": 1228800
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 10,
      "name": "富士電機株式会社",
      "shareholding_ratio": 1.56,
      "shares_held": 1100000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "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": 11.9,
      "shares_held": 8404900
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "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": 8.13,
      "shares_held": 5741100
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "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 資産管理サービス信託銀行株式会社",
      "shareholding_ratio": 3.42,
      "shares_held": 2413500
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "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４）",
      "shareholding_ratio": 3.26,
      "shares_held": 2304800
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 5,
      "name": "朝日生命保険相互会社",
      "shareholding_ratio": 1.93,
      "shares_held": 1365050
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 6,
      "name": "古河機械金属株式会社",
      "shareholding_ratio": 1.88,
      "shares_held": 1329045
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "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５)",
      "shareholding_ratio": 1.78,
      "shares_held": 1257600
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 8,
      "name": "THE BANK OF NEW YORK，NON-TREATY JASDEC ACCOUNT",
      "shareholding_ratio": 1.6,
      "shares_held": 1127210
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 9,
      "name": "富士電機株式会社",
      "shareholding_ratio": 1.56,
      "shares_held": 1100000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 10,
      "name": "みずほ信託銀行株式会社 退職給付信託 古河機械金属口 再信託受託者 資産管理サービス信託銀行株式会社",
      "shareholding_ratio": 1.55,
      "shares_held": 1091900
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "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": 9.76,
      "shares_held": 6893200
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "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": 7.33,
      "shares_held": 5178300
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "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 資産管理サービス信託銀行株式会社",
      "shareholding_ratio": 3.42,
      "shares_held": 2413500
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "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４）",
      "shareholding_ratio": 3.21,
      "shares_held": 2269500
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 5,
      "name": "朝日生命保険相互会社",
      "shareholding_ratio": 1.93,
      "shares_held": 1365050
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 6,
      "name": "古河機械金属株式会社",
      "shareholding_ratio": 1.88,
      "shares_held": 1329045
    },
    {
      "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５)",
      "shareholding_ratio": 1.59,
      "shares_held": 1120800
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 8,
      "name": "富士電機株式会社",
      "shareholding_ratio": 1.56,
      "shares_held": 1100000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 9,
      "name": "みずほ信託銀行株式会社 退職給付信託 古河機械金属口 再信託受託者 資産管理サービス信託銀行株式会社",
      "shareholding_ratio": 1.55,
      "shares_held": 1091900
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 10,
      "name": "みずほ信託銀行株式会社 退職給付信託 朝日生命保険口 再信託受託者 資産管理サービス信託銀行株式会社",
      "shareholding_ratio": 1.49,
      "shares_held": 1050000
    },
    {
      "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": 7.82,
      "shares_held": 5524300
    },
    {
      "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": 4.9,
      "shares_held": 3458200
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 3,
      "name": "日本トラスティ・サービス信託銀行株式会社（信託口４）",
      "shareholding_ratio": 3.53,
      "shares_held": 2496300
    },
    {
      "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": 3.42,
      "shares_held": 2413500
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 5,
      "name": "朝日生命保険相互会社",
      "shareholding_ratio": 1.93,
      "shares_held": 1365050
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 6,
      "name": "古河機械金属株式会社",
      "shareholding_ratio": 1.88,
      "shares_held": 1329045
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "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５)",
      "shareholding_ratio": 1.77,
      "shares_held": 1250000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 8,
      "name": "富士電機株式会社",
      "shareholding_ratio": 1.56,
      "shares_held": 1100000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 9,
      "name": "みずほ信託銀行株式会社 退職給付信託 古河機械金属口 再信託受託者 資産管理サービス信託銀行株式会社",
      "shareholding_ratio": 1.55,
      "shares_held": 1091900
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 10,
      "name": "みずほ信託銀行株式会社 退職給付信託 朝日生命保険口 再信託受託者 資産管理サービス信託銀行株式会社",
      "shareholding_ratio": 1.49,
      "shares_held": 1050000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "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": 9.72,
      "shares_held": 6864600
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 2,
      "name": "株式会社日本カストディ銀行（信託口）",
      "shareholding_ratio": 6.61,
      "shares_held": 4664400
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 3,
      "name": "株式会社日本カストディ銀行（信託口４）",
      "shareholding_ratio": 3.52,
      "shares_held": 2484100
    },
    {
      "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": 3.42,
      "shares_held": 2413500
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 5,
      "name": "朝日生命保険相互会社",
      "shareholding_ratio": 1.93,
      "shares_held": 1365050
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 6,
      "name": "古河機械金属株式会社",
      "shareholding_ratio": 1.88,
      "shares_held": 1329045
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 7,
      "name": "株式会社日本カストディ銀行（信託口９)",
      "shareholding_ratio": 1.74,
      "shares_held": 1225600
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 8,
      "name": "富士電機株式会社",
      "shareholding_ratio": 1.56,
      "shares_held": 1100000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 9,
      "name": "みずほ信託銀行株式会社 退職給付信託 古河機械金属口 再信託受託者 株式会社日本カストディ銀行",
      "shareholding_ratio": 1.55,
      "shares_held": 1091900
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 10,
      "name": "クレディ・スイス証券株式会社",
      "shareholding_ratio": 1.49,
      "shares_held": 1054500
    },
    {
      "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": 15.72,
      "shares_held": 11103100
    },
    {
      "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": 5.66,
      "shares_held": 3999200
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "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": 3.42,
      "shares_held": 2413500
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 4,
      "name": "株式会社日本カストディ銀行（信託口４）",
      "shareholding_ratio": 3.23,
      "shares_held": 2278000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 5,
      "name": "BNYMSANV AS AGENT/ CLIENTS LUX UCITS NON TREATY 1",
      "shareholding_ratio": 2.41,
      "shares_held": 1699900
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 6,
      "name": "朝日生命保険相互会社",
      "shareholding_ratio": 1.93,
      "shares_held": 1365050
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 7,
      "name": "古河機械金属株式会社",
      "shareholding_ratio": 1.88,
      "shares_held": 1329045
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 8,
      "name": "DFA INTL SMALL CAP VALUE PORTFOLIO",
      "shareholding_ratio": 1.8,
      "shares_held": 1269310
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 9,
      "name": "みずほ信託銀行株式会社 退職給付信託 古河機械金属口 再信託受託者 株式会社日本カストディ銀行",
      "shareholding_ratio": 1.55,
      "shares_held": 1091900
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 10,
      "name": "みずほ信託銀行株式会社 退職給付信託 朝日生命保険口 再信託受託者 株式会社日本カストディ銀行",
      "shareholding_ratio": 1.49,
      "shares_held": 1050000
    },
    {
      "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": 16.75,
      "shares_held": 11829200
    },
    {
      "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": 6.75,
      "shares_held": 4763900
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 3,
      "name": "BNYMSANV AS AGENT/ CLIENTS LUX UCITS NON TREATY 1",
      "shareholding_ratio": 4.47,
      "shares_held": 3154100
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 4,
      "name": "株式会社日本カストディ銀行（信託口４）",
      "shareholding_ratio": 3.85,
      "shares_held": 2718200
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "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 株式会社日本カストディ銀行",
      "shareholding_ratio": 3.42,
      "shares_held": 2413500
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 6,
      "name": "朝日生命保険相互会社",
      "shareholding_ratio": 1.93,
      "shares_held": 1365050
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 7,
      "name": "古河機械金属株式会社",
      "shareholding_ratio": 1.88,
      "shares_held": 1329045
    },
    {
      "FY": "FY22",
      "period": "2023/3",
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      "period": "1955/9",
      "company_name_at_period": "古河電気工業",
      "rank": 8,
      "name": "三菱金属鉱業",
      "shareholding_ratio": null,
      "shares_held": 1300000,
      "total_shares": 60000000,
      "source": "株式会社年鑑 昭和31年版"
    },
    {
      "FY": "FY55",
      "period": "1955/9",
      "company_name_at_period": "古河電気工業",
      "rank": 9,
      "name": "第一銀行",
      "shareholding_ratio": null,
      "shares_held": 1100000,
      "total_shares": 60000000,
      "source": "株式会社年鑑 昭和31年版"
    },
    {
      "FY": "FY55",
      "period": "1955/9",
      "company_name_at_period": "古河電気工業",
      "rank": 10,
      "name": "住友生命",
      "shareholding_ratio": null,
      "shares_held": 1000000,
      "total_shares": 60000000,
      "source": "株式会社年鑑 昭和31年版"
    },
    {
      "FY": "FY74",
      "period": "1975/3",
      "company_name_at_period": "古河電気工業",
      "rank": 1,
      "name": "朝日生命保険",
      "shareholding_ratio": 8.18,
      "shares_held": 27150000,
      "total_shares": null,
      "source": "日本企業要覧 1975年版"
    },
    {
      "FY": "FY74",
      "period": "1975/3",
      "company_name_at_period": "古河電気工業",
      "rank": 2,
      "name": "古河鉱業",
      "shareholding_ratio": 6.94,
      "shares_held": 23020000,
      "total_shares": null,
      "source": "日本企業要覧 1975年版"
    },
    {
      "FY": "FY74",
      "period": "1975/3",
      "company_name_at_period": "古河電気工業",
      "rank": 3,
      "name": "第一勧業銀行",
      "shareholding_ratio": 4.3,
      "shares_held": 14265822,
      "total_shares": null,
      "source": "日本企業要覧 1975年版"
    },
    {
      "FY": "FY74",
      "period": "1975/3",
      "company_name_at_period": "古河電気工業",
      "rank": 4,
      "name": "日本長期信用銀行",
      "shareholding_ratio": 4.02,
      "shares_held": 13352307,
      "total_shares": null,
      "source": "日本企業要覧 1975年版"
    },
    {
      "FY": "FY74",
      "period": "1975/3",
      "company_name_at_period": "古河電気工業",
      "rank": 5,
      "name": "富士電機製造",
      "shareholding_ratio": 3.31,
      "shares_held": 11000000,
      "total_shares": null,
      "source": "日本企業要覧 1975年版"
    },
    {
      "FY": "FY74",
      "period": "1975/3",
      "company_name_at_period": "古河電気工業",
      "rank": 6,
      "name": "伊藤忠商事",
      "shareholding_ratio": 3.4,
      "shares_held": 10950000,
      "total_shares": null,
      "source": "日本企業要覧 1975年版"
    },
    {
      "FY": "FY74",
      "period": "1975/3",
      "company_name_at_period": "古河電気工業",
      "rank": 7,
      "name": "日本生命保険",
      "shareholding_ratio": 3.06,
      "shares_held": 10150000,
      "total_shares": null,
      "source": "日本企業要覧 1975年版"
    },
    {
      "FY": "FY74",
      "period": "1975/3",
      "company_name_at_period": "古河電気工業",
      "rank": 8,
      "name": "協和銀行",
      "shareholding_ratio": 3.03,
      "shares_held": 10050000,
      "total_shares": null,
      "source": "日本企業要覧 1975年版"
    },
    {
      "FY": "FY74",
      "period": "1975/3",
      "company_name_at_period": "古河電気工業",
      "rank": 9,
      "name": "住友生命保険",
      "shareholding_ratio": 2.2,
      "shares_held": 7069999,
      "total_shares": null,
      "source": "日本企業要覧 1975年版"
    },
    {
      "FY": "FY74",
      "period": "1975/3",
      "company_name_at_period": "古河電気工業",
      "rank": 10,
      "name": "三菱銀行",
      "shareholding_ratio": 1.51,
      "shares_held": 5000000,
      "total_shares": null,
      "source": "日本企業要覧 1975年版"
    },
    {
      "FY": "FY79",
      "period": "1980/3",
      "company_name_at_period": "古河電気工業",
      "rank": 1,
      "name": "朝日生命保険",
      "shareholding_ratio": 8.84,
      "shares_held": 37150000,
      "total_shares": 420339000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY79",
      "period": "1980/3",
      "company_name_at_period": "古河電気工業",
      "rank": 2,
      "name": "古河鉱業",
      "shareholding_ratio": 5.56,
      "shares_held": 23373000,
      "total_shares": 420339000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY79",
      "period": "1980/3",
      "company_name_at_period": "古河電気工業",
      "rank": 3,
      "name": "第一勧業銀行",
      "shareholding_ratio": 4.43,
      "shares_held": 18635000,
      "total_shares": 420339000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY79",
      "period": "1980/3",
      "company_name_at_period": "古河電気工業",
      "rank": 4,
      "name": "三井信託銀行",
      "shareholding_ratio": 4.09,
      "shares_held": 17193000,
      "total_shares": 420339000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY79",
      "period": "1980/3",
      "company_name_at_period": "古河電気工業",
      "rank": 5,
      "name": "日本生命保険",
      "shareholding_ratio": 3.59,
      "shares_held": 15072000,
      "total_shares": 420339000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY79",
      "period": "1980/3",
      "company_name_at_period": "古河電気工業",
      "rank": 6,
      "name": "日本長期信用銀行",
      "shareholding_ratio": 3.18,
      "shares_held": 13352000,
      "total_shares": 420339000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY79",
      "period": "1980/3",
      "company_name_at_period": "古河電気工業",
      "rank": 7,
      "name": "安田信託銀行",
      "shareholding_ratio": 3.02,
      "shares_held": 12705000,
      "total_shares": 420339000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY79",
      "period": "1980/3",
      "company_name_at_period": "古河電気工業",
      "rank": 8,
      "name": "富士電機製造",
      "shareholding_ratio": 2.62,
      "shares_held": 11000000,
      "total_shares": 420339000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY79",
      "period": "1980/3",
      "company_name_at_period": "古河電気工業",
      "rank": 9,
      "name": "協和銀行",
      "shareholding_ratio": 2.39,
      "shares_held": 10049000,
      "total_shares": 420339000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY79",
      "period": "1980/3",
      "company_name_at_period": "古河電気工業",
      "rank": 10,
      "name": "第一生命保険",
      "shareholding_ratio": 2.38,
      "shares_held": 10000000,
      "total_shares": 420339000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY05",
      "period": "2006/3",
      "company_name_at_period": "古河電気工業",
      "rank": 1,
      "name": "日本マスタートラスト信託銀行",
      "shareholding_ratio": 11.89,
      "shares_held": 83940000,
      "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": "古河電気工業",
      "rank": 2,
      "name": "日本トラスティ・サービス信託銀行",
      "shareholding_ratio": 4.25,
      "shares_held": 30034000,
      "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": "古河電気工業",
      "rank": 3,
      "name": "日本トラスティ・サービス信託銀行（信託口４）",
      "shareholding_ratio": 3.51,
      "shares_held": 24796000,
      "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": "古河電気工業",
      "rank": 4,
      "name": "みずほ信託退職給付信託 みずほ銀行口",
      "shareholding_ratio": 3.25,
      "shares_held": 22928250,
      "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": "古河電気工業",
      "rank": 5,
      "name": "朝日生命保険",
      "shareholding_ratio": 2.27,
      "shares_held": 16050000,
      "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": "古河電気工業",
      "rank": 6,
      "name": "古河機械金属",
      "shareholding_ratio": 1.88,
      "shares_held": 13290455,
      "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": "古河電気工業",
      "rank": 7,
      "name": "日本生命保険",
      "shareholding_ratio": 1.68,
      "shares_held": 11895000,
      "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": "古河電気工業",
      "rank": 8,
      "name": "富士電機ホールディングス",
      "shareholding_ratio": 1.56,
      "shares_held": 11000000,
      "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": "古河電気工業",
      "rank": 9,
      "name": "みずほ信託退職給付信託 古河機械金属口",
      "shareholding_ratio": 1.55,
      "shares_held": 10919000,
      "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": "古河電気工業",
      "rank": 10,
      "name": "野村信託銀行（投信口）",
      "shareholding_ratio": 1.49,
      "shares_held": 10509000,
      "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": "古河電気工業",
      "rank": 1,
      "name": "日本マスタートラスト信託銀行（信託口）",
      "shareholding_ratio": 6.06,
      "shares_held": 42859000,
      "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": "古河電気工業",
      "rank": 2,
      "name": "日本トラスティ・サービス信託銀行（信託口）",
      "shareholding_ratio": 5.04,
      "shares_held": 35606000,
      "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": "古河電気工業",
      "rank": 3,
      "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": 3.24,
      "shares_held": 22928250,
      "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": "古河電気工業",
      "rank": 4,
      "name": "日本トラスティ・サービス信託銀行（信託口4）",
      "shareholding_ratio": 2.96,
      "shares_held": 20906000,
      "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": "古河電気工業",
      "rank": 5,
      "name": "日本トラスティ・サービス信託銀行（信託口9）",
      "shareholding_ratio": 2.75,
      "shares_held": 19406000,
      "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": "古河電気工業",
      "rank": 6,
      "name": "朝日生命保険",
      "shareholding_ratio": 2.27,
      "shares_held": 16060500,
      "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": "古河電気工業",
      "rank": 7,
      "name": "古河機械金属",
      "shareholding_ratio": 1.88,
      "shares_held": 13290455,
      "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": "古河電気工業",
      "rank": 8,
      "name": "日本生命保険",
      "shareholding_ratio": 1.68,
      "shares_held": 11895000,
      "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": "古河電気工業",
      "rank": 9,
      "name": "富士電機ホールディングス",
      "shareholding_ratio": 1.56,
      "shares_held": 11000000,
      "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": "古河電気工業",
      "rank": 10,
      "name": "みずほ信託銀行 退職給付信託 古河機械金属口 再信託受託者 資産管理サービス信託銀行",
      "shareholding_ratio": 1.55,
      "shares_held": 10919000,
      "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": "古河電気工業",
      "rank": 1,
      "name": "日本トラスティ・サービス信託銀行（信託口4）",
      "shareholding_ratio": 4.74,
      "shares_held": 33511000,
      "total_shares": null,
      "source": "有価証券報告書（2015年3月期）"
    },
    {
      "FY": "FY14",
      "period": "2015/3",
      "company_name_at_period": "古河電気工業",
      "rank": 2,
      "name": "日本マスタートラスト信託銀行（信託口）",
      "shareholding_ratio": 4.41,
      "shares_held": 31148000,
      "total_shares": null,
      "source": "有価証券報告書（2015年3月期）"
    },
    {
      "FY": "FY14",
      "period": "2015/3",
      "company_name_at_period": "古河電気工業",
      "rank": 3,
      "name": "日本トラスティ・サービス信託銀行（信託口）",
      "shareholding_ratio": 3.54,
      "shares_held": 25028000,
      "total_shares": null,
      "source": "有価証券報告書（2015年3月期）"
    },
    {
      "FY": "FY14",
      "period": "2015/3",
      "company_name_at_period": "古河電気工業",
      "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": 3.42,
      "shares_held": 24135000,
      "total_shares": null,
      "source": "有価証券報告書（2015年3月期）"
    },
    {
      "FY": "FY14",
      "period": "2015/3",
      "company_name_at_period": "古河電気工業",
      "rank": 5,
      "name": "朝日生命保険",
      "shareholding_ratio": 1.93,
      "shares_held": 13650500,
      "total_shares": null,
      "source": "有価証券報告書（2015年3月期）"
    },
    {
      "FY": "FY14",
      "period": "2015/3",
      "company_name_at_period": "古河電気工業",
      "rank": 6,
      "name": "古河機械金属",
      "shareholding_ratio": 1.88,
      "shares_held": 13290455,
      "total_shares": null,
      "source": "有価証券報告書（2015年3月期）"
    },
    {
      "FY": "FY14",
      "period": "2015/3",
      "company_name_at_period": "古河電気工業",
      "rank": 7,
      "name": "日本トラスティ・サービス信託銀行（信託口9）",
      "shareholding_ratio": 1.7,
      "shares_held": 11997000,
      "total_shares": null,
      "source": "有価証券報告書（2015年3月期）"
    },
    {
      "FY": "FY14",
      "period": "2015/3",
      "company_name_at_period": "古河電気工業",
      "rank": 8,
      "name": "富士電機",
      "shareholding_ratio": 1.56,
      "shares_held": 11000000,
      "total_shares": null,
      "source": "有価証券報告書（2015年3月期）"
    },
    {
      "FY": "FY14",
      "period": "2015/3",
      "company_name_at_period": "古河電気工業",
      "rank": 9,
      "name": "みずほ信託銀行 退職給付信託 古河機械金属口 再信託受託者 資産管理サービス信託銀行",
      "shareholding_ratio": 1.55,
      "shares_held": 10919000,
      "total_shares": null,
      "source": "有価証券報告書（2015年3月期）"
    },
    {
      "FY": "FY14",
      "period": "2015/3",
      "company_name_at_period": "古河電気工業",
      "rank": 10,
      "name": "みずほ信託銀行 退職給付信託 朝日生命保険口 再信託受託者 資産管理サービス信託銀行",
      "shareholding_ratio": 1.49,
      "shares_held": 10500000,
      "total_shares": null,
      "source": "有価証券報告書（2015年3月期）"
    }
  ]
}