{
  "commentary": [
    {
      "heading": null,
      "paragraphs": [
        "FY15時点では信託銀行2口で約13%、みずほ信託退職給付信託みずほ銀行口3.35%、取引先・社員持株会が並ぶ伝統的な親密株主構造だった。",
        "FY24では日本マスタートラスト信託銀行が17.80%へ拡大し、退職給付信託は縮小、State Street系外国法人3口が中位を占める機関投資家中心の構造へ移行している。"
      ]
    }
  ],
  "long_term_commentary": [
    "1957年には千代田生命（5.0%）・千代田火災海上（4.17%）を筆頭に、富士銀行・山一証券・大和銀行が並び、大倉財閥の流れをくむ保険・銀行・証券が上位を分け合う構造だった。",
    "高度成長期から1980年代にかけては千代田生命保険が筆頭株主を続け（1980年5.90%）、富士銀行・大和銀行・大倉事業に従業員持株会を交えた、富士銀行系列の安定株主が支える持ち合い構造へ移った。",
    "2000年代以降は日本トラスティ・サービス信託銀行や日本マスタートラスト信託銀行など信託口が上位を占め、大成建設社員持株会・取引先持株会を残しつつ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": "日本トラスティ・サービス信託銀行株式会社（信託口）",
      "shareholding_ratio": 7.05,
      "shares_held": 82537000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "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": 5.73,
      "shares_held": 67151000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 3,
      "name": "みずほ信託退職給付信託 みずほ銀行口",
      "shareholding_ratio": 3.35,
      "shares_held": 39289000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 4,
      "name": "大成建設取引先持株会",
      "shareholding_ratio": 2.19,
      "shares_held": 25703000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 5,
      "name": "大成建設社員持株会",
      "shareholding_ratio": 1.96,
      "shares_held": 23002000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 6,
      "name": "ステート ストリート バンクウェスト クライアントトリーティー ５０５２３４（常任代理人 株式会社みずほ 銀行）",
      "shareholding_ratio": 1.37,
      "shares_held": 15990000
    },
    {
      "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７）",
      "shareholding_ratio": 1.28,
      "shares_held": 15023000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 8,
      "name": "明治安田生命保険相互会社",
      "shareholding_ratio": 1.22,
      "shares_held": 14238000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 9,
      "name": "ザ バンク オブ ニユーヨークメロン エスエー エヌブイ１０（常任代理人 株式会社三菱東京 ＵＦＪ銀行）",
      "shareholding_ratio": 1.13,
      "shares_held": 13260000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 10,
      "name": "三菱地所株式会社",
      "shareholding_ratio": 1.04,
      "shares_held": 12133000
    },
    {
      "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": 6.29,
      "shares_held": 72183000
    },
    {
      "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": 5.9,
      "shares_held": 67624000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 3,
      "name": "みずほ信託退職給付信託 みずほ銀行口",
      "shareholding_ratio": 3.43,
      "shares_held": 39289000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 4,
      "name": "大成建設取引先持株会",
      "shareholding_ratio": 2.29,
      "shares_held": 26251000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 5,
      "name": "大成建設社員持株会",
      "shareholding_ratio": 1.85,
      "shares_held": 21271000
    },
    {
      "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": 1.83,
      "shares_held": 20932000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 7,
      "name": "ステート ストリート バンク ウェスト クライアントトリーティー ５０５２３４（常任代理人 株式会社みずほ 銀行）",
      "shareholding_ratio": 1.57,
      "shares_held": 18051000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 8,
      "name": "GOVERNMENT OF NORWAY （常任代理人 シティバンク、 エヌ・エイ東京支店）",
      "shareholding_ratio": 1.35,
      "shares_held": 15537000
    },
    {
      "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１）",
      "shareholding_ratio": 1.35,
      "shares_held": 15455000
    },
    {
      "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": 1.34,
      "shares_held": 15417000
    },
    {
      "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": 5.87,
      "shares_held": 13164000
    },
    {
      "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": 5.14,
      "shares_held": 11536000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 3,
      "name": "みずほ信託退職給付信託 みずほ銀行口",
      "shareholding_ratio": 3.5,
      "shares_held": 7857000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 4,
      "name": "大成建設取引先持株会",
      "shareholding_ratio": 2.34,
      "shares_held": 5251000
    },
    {
      "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": 1.9,
      "shares_held": 4262000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 6,
      "name": "ステート ストリート バンク ウェスト クライアント トリーティー ５０５２３４ （常任代理人 株式会社みずほ 銀行）",
      "shareholding_ratio": 1.89,
      "shares_held": 4228000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 7,
      "name": "大成建設社員持株会",
      "shareholding_ratio": 1.68,
      "shares_held": 3765000
    },
    {
      "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７）",
      "shareholding_ratio": 1.59,
      "shares_held": 3564000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 9,
      "name": "GOVERNMENT OF NORWAY（常任代理人 シティバンク、 エヌ・エイ東京支店）",
      "shareholding_ratio": 1.43,
      "shares_held": 3199000
    },
    {
      "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": 1.41,
      "shares_held": 3164000
    },
    {
      "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": 7.26,
      "shares_held": 15843000
    },
    {
      "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": 6.03,
      "shares_held": 13156000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 3,
      "name": "みずほ信託退職給付信託 みずほ銀行口",
      "shareholding_ratio": 3.6,
      "shares_held": 7857000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 4,
      "name": "大成建設取引先持株会",
      "shareholding_ratio": 2.42,
      "shares_held": 5272000
    },
    {
      "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": 2.09,
      "shares_held": 4549000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "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": 2.01,
      "shares_held": 4376000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 7,
      "name": "大成建設社員持株会",
      "shareholding_ratio": 1.64,
      "shares_held": 3578000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 8,
      "name": "ステート ストリート バンクウェスト クライアントトリーティー ５０５２３４（常任代理人 株式会社みずほ 銀行）",
      "shareholding_ratio": 1.56,
      "shares_held": 3412000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 9,
      "name": "ジェーピー モルガン チェース バンク ３８５１５１（常任代理人 株式会社みずほ 銀行）",
      "shareholding_ratio": 1.49,
      "shares_held": 3250000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "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９）",
      "shareholding_ratio": 1.39,
      "shares_held": 3022000
    },
    {
      "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": 8.54,
      "shares_held": 18053000
    },
    {
      "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": 6.98,
      "shares_held": 14753000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 3,
      "name": "みずほ信託退職給付信託 みずほ銀行口",
      "shareholding_ratio": 3.72,
      "shares_held": 7857000
    },
    {
      "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７）",
      "shareholding_ratio": 2.54,
      "shares_held": 5368000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 5,
      "name": "大成建設取引先持株会",
      "shareholding_ratio": 2.52,
      "shares_held": 5319000
    },
    {
      "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": 2.23,
      "shares_held": 4704000
    },
    {
      "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": 2.02,
      "shares_held": 4262000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 8,
      "name": "大成建設社員持株会",
      "shareholding_ratio": 1.69,
      "shares_held": 3563000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 9,
      "name": "ジェーピー モルガン チェース バンク ３８５１５１（常任代理人 株式会社みずほ 銀行）",
      "shareholding_ratio": 1.67,
      "shares_held": 3519000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 10,
      "name": "ステート ストリート バンクウェスト クライアントトリーティー ５０５２３４（常任代理人 株式会社みずほ 銀行）",
      "shareholding_ratio": 1.46,
      "shares_held": 3083000
    },
    {
      "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": 9.5,
      "shares_held": 19563000
    },
    {
      "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": 5.82,
      "shares_held": 11977000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 3,
      "name": "みずほ信託退職給付信託 みずほ銀行口",
      "shareholding_ratio": 2.84,
      "shares_held": 5857000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 4,
      "name": "大成建設取引先持株会",
      "shareholding_ratio": 2.71,
      "shares_held": 5586000
    },
    {
      "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": 2.36,
      "shares_held": 4870000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 6,
      "name": "大成建設社員持株会",
      "shareholding_ratio": 1.77,
      "shares_held": 3653000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 7,
      "name": "株式会社日本カストディ銀行（信託口４）",
      "shareholding_ratio": 1.6,
      "shares_held": 3303000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 8,
      "name": "ステート ストリート バンクウェスト クライアントトリーティー ５０５２３４（常任代理人 株式会社みずほ 銀行）",
      "shareholding_ratio": 1.52,
      "shares_held": 3139000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 9,
      "name": "株式会社日本カストディ銀行（信託口５）",
      "shareholding_ratio": 1.45,
      "shares_held": 2992000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 10,
      "name": "明治安田生命保険相互会社",
      "shareholding_ratio": 1.38,
      "shares_held": 2847000
    },
    {
      "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": 16.18,
      "shares_held": 32450000
    },
    {
      "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": 5.41,
      "shares_held": 10850000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 3,
      "name": "みずほ信託退職給付信託 みずほ銀行口",
      "shareholding_ratio": 2.92,
      "shares_held": 5857000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 4,
      "name": "大成建設取引先持株会",
      "shareholding_ratio": 2.91,
      "shares_held": 5839000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 5,
      "name": "NORTHERN TRUST CO. (AVFC) RE SILCHESTER INTERNATIONAL INVESTORS INTERNATIONAL VALUE EQUITY TRUST（常任代理人 香港上海銀行）",
      "shareholding_ratio": 2.48,
      "shares_held": 4967000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 6,
      "name": "大成建設社員持株会",
      "shareholding_ratio": 1.86,
      "shares_held": 3730000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 7,
      "name": "ステート ストリート バンク ウェスト クライアント トリーティー ５０５２３４（常任代理人 株式会社みずほ 銀行）",
      "shareholding_ratio": 1.6,
      "shares_held": 3203000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 8,
      "name": "明治安田生命保険相互会社",
      "shareholding_ratio": 1.42,
      "shares_held": 2847000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 9,
      "name": "NORTHERN TRUST CO.(AVFC) RE U.S. TAX EXEMPTED PENSION FUNDS（常任代理人 香港上海銀行）",
      "shareholding_ratio": 1.42,
      "shares_held": 2841000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 10,
      "name": "三菱地所株式会社",
      "shareholding_ratio": 1.21,
      "shares_held": 2426000
    },
    {
      "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": 16.61,
      "shares_held": 31310000
    },
    {
      "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": 6.1,
      "shares_held": 11502000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 3,
      "name": "NORTHERN TRUST CO. (AVFC) RE SILCHESTER INTERNATIONAL INVESTORS INTERNATIONAL VALUE EQUITY TRUST（常任代理人 香港上海銀行）",
      "shareholding_ratio": 3.25,
      "shares_held": 6123000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 4,
      "name": "大成建設取引先持株会",
      "shareholding_ratio": 3.21,
      "shares_held": 6049000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 5,
      "name": "みずほ信託退職給付信託 みずほ銀行口",
      "shareholding_ratio": 3.11,
      "shares_held": 5857000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 6,
      "name": "大成建設社員持株会",
      "shareholding_ratio": 1.99,
      "shares_held": 3757000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 7,
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      "shares_held": 460000,
      "total_shares": 24000000,
      "source": "株式会社年鑑 昭和33年版"
    },
    {
      "FY": "FY57",
      "period": "1957/9",
      "company_name_at_period": "大成建設",
      "rank": 7,
      "name": "都築紡績",
      "shareholding_ratio": 1.67,
      "shares_held": 400000,
      "total_shares": 24000000,
      "source": "株式会社年鑑 昭和33年版"
    },
    {
      "FY": "FY57",
      "period": "1957/9",
      "company_name_at_period": "大成建設",
      "rank": 8,
      "name": "東亜火災海上",
      "shareholding_ratio": 1.67,
      "shares_held": 400000,
      "total_shares": 24000000,
      "source": "株式会社年鑑 昭和33年版"
    },
    {
      "FY": "FY57",
      "period": "1957/9",
      "company_name_at_period": "大成建設",
      "rank": 9,
      "name": "東邦生命",
      "shareholding_ratio": 1.42,
      "shares_held": 340000,
      "total_shares": 24000000,
      "source": "株式会社年鑑 昭和33年版"
    },
    {
      "FY": "FY57",
      "period": "1957/9",
      "company_name_at_period": "大成建設",
      "rank": 10,
      "name": "大倉事業",
      "shareholding_ratio": 1.24,
      "shares_held": 297000,
      "total_shares": 24000000,
      "source": "株式会社年鑑 昭和33年版"
    },
    {
      "FY": "FY60",
      "period": "1961/3",
      "company_name_at_period": "大成建設",
      "rank": 1,
      "name": "千代田生命",
      "shareholding_ratio": 4.8,
      "shares_held": 3840000,
      "total_shares": 80000000,
      "source": "株式会社年鑑 昭和37年版"
    },
    {
      "FY": "FY60",
      "period": "1961/3",
      "company_name_at_period": "大成建設",
      "rank": 2,
      "name": "住友信託銀行",
      "shareholding_ratio": 4.3,
      "shares_held": 3432000,
      "total_shares": 80000000,
      "source": "株式会社年鑑 昭和37年版"
    },
    {
      "FY": "FY60",
      "period": "1961/3",
      "company_name_at_period": "大成建設",
      "rank": 3,
      "name": "千代田火災海上",
      "shareholding_ratio": 3.8,
      "shares_held": 3000000,
      "total_shares": 80000000,
      "source": "株式会社年鑑 昭和37年版"
    },
    {
      "FY": "FY60",
      "period": "1961/3",
      "company_name_at_period": "大成建設",
      "rank": 4,
      "name": "三菱信託銀行",
      "shareholding_ratio": 3.6,
      "shares_held": 2851000,
      "total_shares": 80000000,
      "source": "株式会社年鑑 昭和37年版"
    },
    {
      "FY": "FY60",
      "period": "1961/3",
      "company_name_at_period": "大成建設",
      "rank": 5,
      "name": "富士銀行",
      "shareholding_ratio": 3.2,
      "shares_held": 2560000,
      "total_shares": 80000000,
      "source": "株式会社年鑑 昭和37年版"
    },
    {
      "FY": "FY60",
      "period": "1961/3",
      "company_name_at_period": "大成建設",
      "rank": 6,
      "name": "大和銀行",
      "shareholding_ratio": 2.4,
      "shares_held": 1920000,
      "total_shares": 80000000,
      "source": "株式会社年鑑 昭和37年版"
    },
    {
      "FY": "FY60",
      "period": "1961/3",
      "company_name_at_period": "大成建設",
      "rank": 7,
      "name": "佐野友二",
      "shareholding_ratio": 1.3,
      "shares_held": 1063000,
      "total_shares": 80000000,
      "source": "株式会社年鑑 昭和37年版"
    },
    {
      "FY": "FY60",
      "period": "1961/3",
      "company_name_at_period": "大成建設",
      "rank": 8,
      "name": "都築紡績",
      "shareholding_ratio": 1.3,
      "shares_held": 1000000,
      "total_shares": 80000000,
      "source": "株式会社年鑑 昭和37年版"
    },
    {
      "FY": "FY60",
      "period": "1961/3",
      "company_name_at_period": "大成建設",
      "rank": 9,
      "name": "安田信託銀行",
      "shareholding_ratio": 1.2,
      "shares_held": 991000,
      "total_shares": 80000000,
      "source": "株式会社年鑑 昭和37年版"
    },
    {
      "FY": "FY60",
      "period": "1961/3",
      "company_name_at_period": "大成建設",
      "rank": 10,
      "name": "東亜火災海上",
      "shareholding_ratio": 1.2,
      "shares_held": 960000,
      "total_shares": 80000000,
      "source": "株式会社年鑑 昭和37年版"
    },
    {
      "FY": "FY74",
      "period": "1975/3",
      "company_name_at_period": "大成建設",
      "rank": 1,
      "name": "千代田生命保険",
      "shareholding_ratio": 5.83,
      "shares_held": 36851000,
      "total_shares": 632000000,
      "source": "日本企業要覧 1975年版"
    },
    {
      "FY": "FY74",
      "period": "1975/3",
      "company_name_at_period": "大成建設",
      "rank": 2,
      "name": "富士銀行",
      "shareholding_ratio": 5.34,
      "shares_held": 33700497,
      "total_shares": 632000000,
      "source": "日本企業要覧 1975年版"
    },
    {
      "FY": "FY74",
      "period": "1975/3",
      "company_name_at_period": "大成建設",
      "rank": 3,
      "name": "大和銀行",
      "shareholding_ratio": 3.5,
      "shares_held": 22121074,
      "total_shares": 632000000,
      "source": "日本企業要覧 1975年版"
    },
    {
      "FY": "FY74",
      "period": "1975/3",
      "company_name_at_period": "大成建設",
      "rank": 4,
      "name": "安田信託銀行",
      "shareholding_ratio": 2.3,
      "shares_held": 14528485,
      "total_shares": 632000000,
      "source": "日本企業要覧 1975年版"
    },
    {
      "FY": "FY74",
      "period": "1975/3",
      "company_name_at_period": "大成建設",
      "rank": 5,
      "name": "大倉事業",
      "shareholding_ratio": 2.02,
      "shares_held": 12781401,
      "total_shares": 632000000,
      "source": "日本企業要覧 1975年版"
    },
    {
      "FY": "FY74",
      "period": "1975/3",
      "company_name_at_period": "大成建設",
      "rank": 6,
      "name": "千代田火災海上保険",
      "shareholding_ratio": 1.87,
      "shares_held": 11791500,
      "total_shares": 632000000,
      "source": "日本企業要覧 1975年版"
    },
    {
      "FY": "FY74",
      "period": "1975/3",
      "company_name_at_period": "大成建設",
      "rank": 7,
      "name": "三菱信託銀行",
      "shareholding_ratio": 1.49,
      "shares_held": 9442487,
      "total_shares": 632000000,
      "source": "日本企業要覧 1975年版"
    },
    {
      "FY": "FY74",
      "period": "1975/3",
      "company_name_at_period": "大成建設",
      "rank": 8,
      "name": "日本不動産銀行",
      "shareholding_ratio": 1.44,
      "shares_held": 9072262,
      "total_shares": 632000000,
      "source": "日本企業要覧 1975年版"
    },
    {
      "FY": "FY74",
      "period": "1975/3",
      "company_name_at_period": "大成建設",
      "rank": 9,
      "name": "三井信託銀行",
      "shareholding_ratio": 1.4,
      "shares_held": 8827000,
      "total_shares": 632000000,
      "source": "日本企業要覧 1975年版"
    },
    {
      "FY": "FY74",
      "period": "1975/3",
      "company_name_at_period": "大成建設",
      "rank": 10,
      "name": "日本生命保険",
      "shareholding_ratio": 1.26,
      "shares_held": 7953937,
      "total_shares": 632000000,
      "source": "日本企業要覧 1975年版"
    },
    {
      "FY": "FY79",
      "period": "1980/3",
      "company_name_at_period": "大成建設",
      "rank": 1,
      "name": "千代田生命保険",
      "shareholding_ratio": 6.12,
      "shares_held": 47234000,
      "total_shares": 772384000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY79",
      "period": "1980/3",
      "company_name_at_period": "大成建設",
      "rank": 2,
      "name": "富士銀行",
      "shareholding_ratio": 5.15,
      "shares_held": 39777000,
      "total_shares": 772384000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY79",
      "period": "1980/3",
      "company_name_at_period": "大成建設",
      "rank": 3,
      "name": "大和銀行",
      "shareholding_ratio": 3.57,
      "shares_held": 27549000,
      "total_shares": 772384000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY79",
      "period": "1980/3",
      "company_name_at_period": "大成建設",
      "rank": 4,
      "name": "従業員持株会",
      "shareholding_ratio": 3.49,
      "shares_held": 26990000,
      "total_shares": 772384000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY79",
      "period": "1980/3",
      "company_name_at_period": "大成建設",
      "rank": 5,
      "name": "日本生命保険",
      "shareholding_ratio": 2.22,
      "shares_held": 17138000,
      "total_shares": 772384000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY79",
      "period": "1980/3",
      "company_name_at_period": "大成建設",
      "rank": 6,
      "name": "大倉事業",
      "shareholding_ratio": 2.12,
      "shares_held": 16387000,
      "total_shares": 772384000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY79",
      "period": "1980/3",
      "company_name_at_period": "大成建設",
      "rank": 7,
      "name": "千代田火災海上保険",
      "shareholding_ratio": 1.7,
      "shares_held": 13167000,
      "total_shares": 772384000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY79",
      "period": "1980/3",
      "company_name_at_period": "大成建設",
      "rank": 8,
      "name": "安田信託銀行",
      "shareholding_ratio": 1.6,
      "shares_held": 12353000,
      "total_shares": 772384000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY79",
      "period": "1980/3",
      "company_name_at_period": "大成建設",
      "rank": 9,
      "name": "日本債券信用銀行",
      "shareholding_ratio": 1.5,
      "shares_held": 11612000,
      "total_shares": 772384000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY79",
      "period": "1980/3",
      "company_name_at_period": "大成建設",
      "rank": 10,
      "name": "三菱地所",
      "shareholding_ratio": 1.18,
      "shares_held": 9136000,
      "total_shares": 772384000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY80",
      "period": "1981/3",
      "company_name_at_period": "大成建設",
      "rank": 1,
      "name": "千代田生命保険",
      "shareholding_ratio": 5.9,
      "shares_held": 45600000,
      "total_shares": 772394000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY80",
      "period": "1981/3",
      "company_name_at_period": "大成建設",
      "rank": 2,
      "name": "富士銀行",
      "shareholding_ratio": 5.15,
      "shares_held": 39777000,
      "total_shares": 772394000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY80",
      "period": "1981/3",
      "company_name_at_period": "大成建設",
      "rank": 3,
      "name": "従業員持株会",
      "shareholding_ratio": 4.07,
      "shares_held": 31470000,
      "total_shares": 772394000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY80",
      "period": "1981/3",
      "company_name_at_period": "大成建設",
      "rank": 4,
      "name": "大和銀行",
      "shareholding_ratio": 3.57,
      "shares_held": 27549000,
      "total_shares": 772394000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY80",
      "period": "1981/3",
      "company_name_at_period": "大成建設",
      "rank": 5,
      "name": "大倉事業",
      "shareholding_ratio": 2.44,
      "shares_held": 18836000,
      "total_shares": 772394000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY80",
      "period": "1981/3",
      "company_name_at_period": "大成建設",
      "rank": 6,
      "name": "日本生命保険",
      "shareholding_ratio": 2.29,
      "shares_held": 17688000,
      "total_shares": 772394000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY80",
      "period": "1981/3",
      "company_name_at_period": "大成建設",
      "rank": 7,
      "name": "千代田火災海上保険",
      "shareholding_ratio": 1.7,
      "shares_held": 13167000,
      "total_shares": 772394000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY80",
      "period": "1981/3",
      "company_name_at_period": "大成建設",
      "rank": 8,
      "name": "安田信託銀行",
      "shareholding_ratio": 1.66,
      "shares_held": 12824000,
      "total_shares": 772394000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY80",
      "period": "1981/3",
      "company_name_at_period": "大成建設",
      "rank": 9,
      "name": "三菱地所",
      "shareholding_ratio": 1.52,
      "shares_held": 11740000,
      "total_shares": 772394000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY80",
      "period": "1981/3",
      "company_name_at_period": "大成建設",
      "rank": 10,
      "name": "日本債券信用銀行",
      "shareholding_ratio": 1.5,
      "shares_held": 11612000,
      "total_shares": 772394000,
      "source": "企業系列総覧 1981年版"
    },
    {
      "FY": "FY08",
      "period": "2009/3",
      "company_name_at_period": "大成建設",
      "rank": 1,
      "name": "日本トラスティ・サービス信託銀行",
      "shareholding_ratio": 6.7,
      "shares_held": 71364000,
      "total_shares": null,
      "source": "有価証券報告書（2009年3月期）"
    },
    {
      "FY": "FY08",
      "period": "2009/3",
      "company_name_at_period": "大成建設",
      "rank": 2,
      "name": "日本トラスティ・サービス信託銀行",
      "shareholding_ratio": 6.04,
      "shares_held": 64324000,
      "total_shares": null,
      "source": "有価証券報告書（2009年3月期）"
    },
    {
      "FY": "FY08",
      "period": "2009/3",
      "company_name_at_period": "大成建設",
      "rank": 3,
      "name": "日本マスタートラスト信託銀行",
      "shareholding_ratio": 4.93,
      "shares_held": 52444000,
      "total_shares": null,
      "source": "有価証券報告書（2009年3月期）"
    },
    {
      "FY": "FY08",
      "period": "2009/3",
      "company_name_at_period": "大成建設",
      "rank": 4,
      "name": "大成建設社員持株会",
      "shareholding_ratio": 2.83,
      "shares_held": 30091000,
      "total_shares": null,
      "source": "有価証券報告書（2009年3月期）"
    },
    {
      "FY": "FY08",
      "period": "2009/3",
      "company_name_at_period": "大成建設",
      "rank": 5,
      "name": "日本トラスティ・サービス信託銀行",
      "shareholding_ratio": 2.51,
      "shares_held": 26753000,
      "total_shares": null,
      "source": "有価証券報告書（2009年3月期）"
    },
    {
      "FY": "FY08",
      "period": "2009/3",
      "company_name_at_period": "大成建設",
      "rank": 6,
      "name": "みずほ信託銀行退職給付信託みずほコーポレート銀行口",
      "shareholding_ratio": 2.18,
      "shares_held": 23180000,
      "total_shares": null,
      "source": "有価証券報告書（2009年3月期）"
    },
    {
      "FY": "FY08",
      "period": "2009/3",
      "company_name_at_period": "大成建設",
      "rank": 7,
      "name": "大成建設取引先持株会",
      "shareholding_ratio": 2.17,
      "shares_held": 23097000,
      "total_shares": null,
      "source": "有価証券報告書（2009年3月期）"
    },
    {
      "FY": "FY08",
      "period": "2009/3",
      "company_name_at_period": "大成建設",
      "rank": 8,
      "name": "三菱地所",
      "shareholding_ratio": 1.65,
      "shares_held": 17604000,
      "total_shares": null,
      "source": "有価証券報告書（2009年3月期）"
    },
    {
      "FY": "FY08",
      "period": "2009/3",
      "company_name_at_period": "大成建設",
      "rank": 9,
      "name": "みずほ信託銀行",
      "shareholding_ratio": 1.51,
      "shares_held": 16108000,
      "total_shares": null,
      "source": "有価証券報告書（2009年3月期）"
    },
    {
      "FY": "FY08",
      "period": "2009/3",
      "company_name_at_period": "大成建設",
      "rank": 10,
      "name": "明治安田生命保険",
      "shareholding_ratio": 1.48,
      "shares_held": 15741000,
      "total_shares": null,
      "source": "有価証券報告書（2009年3月期）"
    },
    {
      "FY": "FY10",
      "period": "2011/3",
      "company_name_at_period": "大成建設",
      "rank": 1,
      "name": "日本トラスティ・サービス信託銀行",
      "shareholding_ratio": 5.57,
      "shares_held": 63488000,
      "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": "大成建設",
      "rank": 2,
      "name": "日本マスタートラスト信託銀行",
      "shareholding_ratio": 3.93,
      "shares_held": 44830000,
      "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": "大成建設",
      "rank": 3,
      "name": "大成建設社員持株会",
      "shareholding_ratio": 2.91,
      "shares_held": 33236000,
      "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": "大成建設",
      "rank": 4,
      "name": "大成建設取引先持株会",
      "shareholding_ratio": 2.36,
      "shares_held": 26877000,
      "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": "大成建設",
      "rank": 5,
      "name": "みずほ信託銀行",
      "shareholding_ratio": 2.03,
      "shares_held": 23180000,
      "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": "大成建設",
      "rank": 6,
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