{
  "commentary": [
    {
      "heading": null,
      "paragraphs": [
        "FY15時点では日本マスタートラスト信託銀行5.4%・日本トラスティ・サービス信託銀行5.0%が首位を占め、明治安田生命や三菱商事退職給付信託など親密株主が続く構造だった。",
        "FY24では日本マスタートラスト信託銀行17.11%・日本カストディ銀行7.79%が突出し、上位の信託2口集中と外国法人比率の上昇が並行して進んでいる。"
      ]
    }
  ],
  "long_term_commentary": [
    "1961年3月時点では三菱銀行3.8%・明治生命3.7%を筆頭に、酒六や山崎証券、三菱信託銀行が上位に並び、三菱系の銀行・信託・生保が中核を担う旧財閥色の濃い株主構造だった。",
    "1975年3月では三菱銀行5.82%が筆頭を保ち、ナッツ・クムコ5.53%・明治生命保険4.80%に三菱信託銀行・三井信託銀行が続く、メインバンクと生損保・信託の持ち合いを軸とした安定株主構造へ移っていた。",
    "2011年3月以降は日本トラスティ・サービス信託銀行と日本マスタートラスト信託銀行の信託2口がそれぞれ5%台で並び、明治安田生命保険や三菱東京UFJ銀行、ステート・ストリート系など外国法人を交えた機関投資家中心の構造へ再編された。"
  ],
  "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": 5.4,
      "shares_held": 41070000
    },
    {
      "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": 5,
      "shares_held": 37873000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 3,
      "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": 3.5,
      "shares_held": 26776000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 4,
      "name": "明治安田生命保険相互会社 （常任代理人 資産管理サービス信託銀行株式会社）",
      "shareholding_ratio": 2.1,
      "shares_held": 15779000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 5,
      "name": "THE BANK OF NEW YORK MELLON SA/NV 10 （常任代理人 株式会社三菱東京ＵＦＪ銀行）",
      "shareholding_ratio": 1.7,
      "shares_held": 12921000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 6,
      "name": "JP MORGAN CHASE BANK 385632 （常任代理人 株式会社みずほ銀行決済営業部）",
      "shareholding_ratio": 1.7,
      "shares_held": 12731000
    },
    {
      "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": 1.6,
      "shares_held": 11823000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 8,
      "name": "STATE STREET BANK AND TRUST COMPANY 505225 （常任代理人 株式会社みずほ銀行決済営業部）",
      "shareholding_ratio": 1.5,
      "shares_held": 11101000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 9,
      "name": "日本マスタートラスト信託銀行株式会社（退職給付信託口・三菱商事株式会社口）",
      "shareholding_ratio": 1.4,
      "shares_held": 10832000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "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": 1.4,
      "shares_held": 10301000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "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": 6.1,
      "shares_held": 45731000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "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": 5.4,
      "shares_held": 40754000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 3,
      "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": 3.3,
      "shares_held": 24802000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 4,
      "name": "明治安田生命保険相互会社 （常任代理人 資産管理サービス信託銀行株式会社）",
      "shareholding_ratio": 2.1,
      "shares_held": 15779000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 5,
      "name": "JP MORGAN CHASE BANK 385632 （常任代理人 株式会社みずほ銀行決済営業部）",
      "shareholding_ratio": 2,
      "shares_held": 14825000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 6,
      "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": 2,
      "shares_held": 14690000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "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１",
      "shareholding_ratio": 1.4,
      "shares_held": 10905000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 8,
      "name": "日本マスタートラスト信託銀行株式会社（退職給付信託口・三菱商事株式会社口）",
      "shareholding_ratio": 1.4,
      "shares_held": 10832000
    },
    {
      "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２",
      "shareholding_ratio": 1.4,
      "shares_held": 10770000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 10,
      "name": "日本トラスティ・サービス信託銀行株式会社信託口７",
      "shareholding_ratio": 1.4,
      "shares_held": 10457000
    },
    {
      "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": 6.8,
      "shares_held": 49080000
    },
    {
      "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": 6,
      "shares_held": 43349000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 3,
      "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,
      "shares_held": 21422000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 4,
      "name": "明治安田生命保険相互会社 （常任代理人 資産管理サービス信託銀行株式会社）",
      "shareholding_ratio": 2.2,
      "shares_held": 15779000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "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": 2,
      "shares_held": 14200000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 6,
      "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": 1.7,
      "shares_held": 12359000
    },
    {
      "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７",
      "shareholding_ratio": 1.7,
      "shares_held": 12324000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 8,
      "name": "JP MORGAN CHASE BANK 385632 （常任代理人 株式会社みずほ銀行決済営業部）",
      "shareholding_ratio": 1.5,
      "shares_held": 10911000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 9,
      "name": "日本マスタートラスト信託銀行株式会社（退職給付信託口・三菱商事株式会社口）",
      "shareholding_ratio": 1.5,
      "shares_held": 10832000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 10,
      "name": "日本トラスティ・サービス信託銀行株式会社信託口１",
      "shareholding_ratio": 1.5,
      "shares_held": 10543000
    },
    {
      "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": 7.9,
      "shares_held": 55882000
    },
    {
      "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": 6.4,
      "shares_held": 45405000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 3,
      "name": "明治安田生命保険相互会社 （常任代理人 資産管理サービス信託銀行株式会社）",
      "shareholding_ratio": 2.2,
      "shares_held": 15779000
    },
    {
      "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５",
      "shareholding_ratio": 2,
      "shares_held": 14038000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "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７",
      "shareholding_ratio": 1.9,
      "shares_held": 13175000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 6,
      "name": "SSBTC CLIENT OMNIBUS ACCOUNT （常任代理人 香港上海銀行東京支店）",
      "shareholding_ratio": 1.8,
      "shares_held": 13025000
    },
    {
      "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": 1.8,
      "shares_held": 12595000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 8,
      "name": "日本マスタートラスト信託銀行株式会社退職給付信託口・三菱商事株式会社口",
      "shareholding_ratio": 1.5,
      "shares_held": 10832000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 9,
      "name": "JP MORGAN CHASE BANK 385151（常任代理人 株式会社みずほ銀行決済営業部）",
      "shareholding_ratio": 1.5,
      "shares_held": 10342000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 10,
      "name": "THE BANK OF NEW YORK MELLON 140044 （常任代理人 株式会社みずほ銀行決済営業部）",
      "shareholding_ratio": 1.4,
      "shares_held": 10203000
    },
    {
      "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": 8.95,
      "shares_held": 62433000
    },
    {
      "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": 6.61,
      "shares_held": 46105000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 3,
      "name": "明治安田生命保険相互会社 （常任代理人 資産管理サービス信託銀行株式会社）",
      "shareholding_ratio": 2.26,
      "shares_held": 15779000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "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５",
      "shareholding_ratio": 2.06,
      "shares_held": 14368000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 5,
      "name": "SSBTC CLIENT OMNIBUS ACCOUNT （常任代理人 香港上海銀行東京支店）",
      "shareholding_ratio": 2,
      "shares_held": 13973000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 6,
      "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": 1.93,
      "shares_held": 13499000
    },
    {
      "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７",
      "shareholding_ratio": 1.89,
      "shares_held": 13158000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 8,
      "name": "JP MORGAN CHASE BANK 385151（常任代理人 株式会社みずほ銀行決済営業部）",
      "shareholding_ratio": 1.65,
      "shares_held": 11513000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 9,
      "name": "日本マスタートラスト信託銀行株式会社退職給付信託口・三菱商事株式会社口",
      "shareholding_ratio": 1.55,
      "shares_held": 10832000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "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": 1.41,
      "shares_held": 9867000
    },
    {
      "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": 10.41,
      "shares_held": 72177000
    },
    {
      "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": 6.9,
      "shares_held": 47842000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 3,
      "name": "明治安田生命保険相互会社 （常任代理人 株式会社日本カストディ銀行）",
      "shareholding_ratio": 2.16,
      "shares_held": 14990000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 4,
      "name": "バークレイズ証券株式会社",
      "shareholding_ratio": 1.82,
      "shares_held": 12591000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 5,
      "name": "株式会社日本カストディ銀行信託口７",
      "shareholding_ratio": 1.74,
      "shares_held": 12081000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 6,
      "name": "SSBTC CLIENT OMNIBUS ACCOUNT （常任代理人 香港上海銀行東京支店）",
      "shareholding_ratio": 1.64,
      "shares_held": 11355000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 7,
      "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": 1.45,
      "shares_held": 10085000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 8,
      "name": "株式会社日本カストディ銀行信託口５",
      "shareholding_ratio": 1.45,
      "shares_held": 10024000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 9,
      "name": "東海日動従業員持株会",
      "shareholding_ratio": 1.44,
      "shares_held": 9962000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 10,
      "name": "日本マスタートラスト信託銀行株式会社退職給付信託口・三菱商事株式会社口",
      "shareholding_ratio": 1.39,
      "shares_held": 9632000
    },
    {
      "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": 18.56,
      "shares_held": 125947000
    },
    {
      "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": 7.36,
      "shares_held": 49971000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 3,
      "name": "明治安田生命保険相互会社 （常任代理人 株式会社日本カストディ銀行）",
      "shareholding_ratio": 2.09,
      "shares_held": 14201000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 4,
      "name": "バークレイズ証券株式会社",
      "shareholding_ratio": 1.85,
      "shares_held": 12581000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 5,
      "name": "SSBTC CLIENT OMNIBUS ACCOUNT （常任代理人 香港上海銀行東京支店）",
      "shareholding_ratio": 1.61,
      "shares_held": 10915000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 6,
      "name": "MOXLEY AND CO LLC （常任代理人 株式会社三菱UFJ銀行）",
      "shareholding_ratio": 1.6,
      "shares_held": 10829000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 7,
      "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": 1.58,
      "shares_held": 10753000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 8,
      "name": "東海日動従業員持株会",
      "shareholding_ratio": 1.51,
      "shares_held": 10256000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 9,
      "name": "JP MORGAN CHASE BANK 385781 （常任代理人 株式会社みずほ銀行決済営業部）",
      "shareholding_ratio": 1.31,
      "shares_held": 8858000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 10,
      "name": "THE BANK OF NEW YORK MELLON 140044 （常任代理人 株式会社みずほ銀行決済営業部）",
      "shareholding_ratio": 1.27,
      "shares_held": 8638000
    },
    {
      "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": 18.39,
      "shares_held": 366477000
    },
    {
      "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": 7.69,
      "shares_held": 153222000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 3,
      "name": "明治安田生命保険相互会社 （常任代理人 株式会社日本 カストディ銀行）",
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      "source": "株式会社年鑑 昭和37年版"
    },
    {
      "FY": "FY60",
      "period": "1961/3",
      "company_name_at_period": "東京海上火災保険",
      "rank": 4,
      "name": "山崎証券",
      "shareholding_ratio": 2.1,
      "shares_held": 3398000,
      "total_shares": 160000000,
      "source": "株式会社年鑑 昭和37年版"
    },
    {
      "FY": "FY60",
      "period": "1961/3",
      "company_name_at_period": "東京海上火災保険",
      "rank": 5,
      "name": "三菱信託銀行",
      "shareholding_ratio": 1.7,
      "shares_held": 2662000,
      "total_shares": 160000000,
      "source": "株式会社年鑑 昭和37年版"
    },
    {
      "FY": "FY60",
      "period": "1961/3",
      "company_name_at_period": "東京海上火災保険",
      "rank": 6,
      "name": "日本証券金融",
      "shareholding_ratio": 1.7,
      "shares_held": 2645000,
      "total_shares": 160000000,
      "source": "株式会社年鑑 昭和37年版"
    },
    {
      "FY": "FY60",
      "period": "1961/3",
      "company_name_at_period": "東京海上火災保険",
      "rank": 7,
      "name": "大阪証券金融",
      "shareholding_ratio": 1.3,
      "shares_held": 2115000,
      "total_shares": 160000000,
      "source": "株式会社年鑑 昭和37年版"
    },
    {
      "FY": "FY60",
      "period": "1961/3",
      "company_name_at_period": "東京海上火災保険",
      "rank": 8,
      "name": "第一生命",
      "shareholding_ratio": 1.3,
      "shares_held": 2000000,
      "total_shares": 160000000,
      "source": "株式会社年鑑 昭和37年版"
    },
    {
      "FY": "FY60",
      "period": "1961/3",
      "company_name_at_period": "東京海上火災保険",
      "rank": 9,
      "name": "第一銀行",
      "shareholding_ratio": 1.2,
      "shares_held": 1867000,
      "total_shares": 160000000,
      "source": "株式会社年鑑 昭和37年版"
    },
    {
      "FY": "FY60",
      "period": "1961/3",
      "company_name_at_period": "東京海上火災保険",
      "rank": 10,
      "name": "日興証券",
      "shareholding_ratio": 1.1,
      "shares_held": 1713000,
      "total_shares": 160000000,
      "source": "株式会社年鑑 昭和37年版"
    },
    {
      "FY": "FY74",
      "period": "1975/3",
      "company_name_at_period": "東京海上火災保険",
      "rank": 1,
      "name": "三菱銀行",
      "shareholding_ratio": 5.82,
      "shares_held": 34921000,
      "total_shares": 600000000,
      "source": "日本企業要覧 1975年版"
    },
    {
      "FY": "FY74",
      "period": "1975/3",
      "company_name_at_period": "東京海上火災保険",
      "rank": 2,
      "name": "ナッツ・クムコ",
      "shareholding_ratio": 5.53,
      "shares_held": 33230000,
      "total_shares": 600000000,
      "source": "日本企業要覧 1975年版"
    },
    {
      "FY": "FY74",
      "period": "1975/3",
      "company_name_at_period": "東京海上火災保険",
      "rank": 3,
      "name": "明治生命保険",
      "shareholding_ratio": 4.8,
      "shares_held": 28802000,
      "total_shares": 600000000,
      "source": "日本企業要覧 1975年版"
    },
    {
      "FY": "FY74",
      "period": "1975/3",
      "company_name_at_period": "東京海上火災保険",
      "rank": 4,
      "name": "三菱信託銀行",
      "shareholding_ratio": 3.12,
      "shares_held": 18730000,
      "total_shares": 600000000,
      "source": "日本企業要覧 1975年版"
    },
    {
      "FY": "FY74",
      "period": "1975/3",
      "company_name_at_period": "東京海上火災保険",
      "rank": 5,
      "name": "三井信託銀行",
      "shareholding_ratio": 2.8,
      "shares_held": 16829000,
      "total_shares": 600000000,
      "source": "日本企業要覧 1975年版"
    },
    {
      "FY": "FY74",
      "period": "1975/3",
      "company_name_at_period": "東京海上火災保険",
      "rank": 6,
      "name": "東洋信託銀行",
      "shareholding_ratio": 2.63,
      "shares_held": 15833000,
      "total_shares": 600000000,
      "source": "日本企業要覧 1975年版"
    },
    {
      "FY": "FY74",
      "period": "1975/3",
      "company_name_at_period": "東京海上火災保険",
      "rank": 7,
      "name": "三菱商事",
      "shareholding_ratio": 2.31,
      "shares_held": 13898000,
      "total_shares": 600000000,
      "source": "日本企業要覧 1975年版"
    },
    {
      "FY": "FY74",
      "period": "1975/3",
      "company_name_at_period": "東京海上火災保険",
      "rank": 8,
      "name": "住友信託銀行",
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      "shares_held": 13260000,
      "total_shares": 600000000,
      "source": "日本企業要覧 1975年版"
    },
    {
      "FY": "FY74",
      "period": "1975/3",
      "company_name_at_period": "東京海上火災保険",
      "rank": 9,
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      "shares_held": 12440000,
      "total_shares": 600000000,
      "source": "日本企業要覧 1975年版"
    },
    {
      "FY": "FY74",
      "period": "1975/3",
      "company_name_at_period": "東京海上火災保険",
      "rank": 10,
      "name": "第一勧業銀行",
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      "shares_held": 11202000,
      "total_shares": 600000000,
      "source": "日本企業要覧 1975年版"
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      "shares_held": 44741000,
      "total_shares": null,
      "source": "有価証券報告書（2011年3月期）"
    },
    {
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      "company_name_at_period": "東京海上ホールディングス",
      "rank": 2,
      "name": "日本マスタートラスト信託銀行",
      "shareholding_ratio": 5.6,
      "shares_held": 44145000,
      "total_shares": null,
      "source": "有価証券報告書（2011年3月期）"
    },
    {
      "FY": "FY10",
      "period": "2011/3",
      "company_name_at_period": "東京海上ホールディングス",
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      "name": "明治安田生命保険",
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      "shares_held": 19179000,
      "total_shares": null,
      "source": "有価証券報告書（2011年3月期）"
    },
    {
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      "period": "2011/3",
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      "total_shares": null,
      "source": "有価証券報告書（2011年3月期）"
    },
    {
      "FY": "FY10",
      "period": "2011/3",
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      "name": "三菱東京UFJ銀行",
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      "total_shares": null,
      "source": "有価証券報告書（2011年3月期）"
    },
    {
      "FY": "FY10",
      "period": "2011/3",
      "company_name_at_period": "東京海上ホールディングス",
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      "total_shares": null,
      "source": "有価証券報告書（2011年3月期）"
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    {
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      "source": "有価証券報告書（2011年3月期）"
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    {
      "FY": "FY10",
      "period": "2011/3",
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      "total_shares": null,
      "source": "有価証券報告書（2011年3月期）"
    },
    {
      "FY": "FY10",
      "period": "2011/3",
      "company_name_at_period": "東京海上ホールディングス",
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      "name": "日本マスタートラスト信託銀行",
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      "total_shares": null,
      "source": "有価証券報告書（2011年3月期）"
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    {
      "FY": "FY10",
      "period": "2011/3",
      "company_name_at_period": "東京海上ホールディングス",
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      "name": "日本トラスティ・サービス信託銀行",
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      "source": "有価証券報告書（2011年3月期）"
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      "company_name_at_period": "東京海上ホールディングス",
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      "total_shares": null,
      "source": "有価証券報告書（2016年3月期）"
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    {
      "FY": "FY15",
      "period": "2016/3",
      "company_name_at_period": "東京海上ホールディングス",
      "rank": 2,
      "name": "日本マスタートラスト信託銀行",
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      "source": "有価証券報告書（2016年3月期）"
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    {
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      "source": "有価証券報告書（2016年3月期）"
    },
    {
      "FY": "FY15",
      "period": "2016/3",
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      "source": "有価証券報告書（2016年3月期）"
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      "source": "有価証券報告書（2016年3月期）"
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    {
      "FY": "FY15",
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      "source": "有価証券報告書（2016年3月期）"
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "company_name_at_period": "東京海上ホールディングス",
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      "source": "有価証券報告書（2016年3月期）"
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      "source": "有価証券報告書（2016年3月期）"
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    {
      "FY": "FY15",
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      "source": "有価証券報告書（2016年3月期）"
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    {
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      "source": "有価証券報告書（2016年3月期）"
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}