{
  "spec_version": "3",
  "endpoint": "shareholders",
  "stock_code": "1979",
  "company_name": "大気社",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/1979/shareholders/",
  "api_url": "/api/1979/shareholders.json",
  "updated": "2026-08-17",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/1979/shareholders/",
  "source": {
    "primary": [
      "有価証券報告書（大株主の状況）"
    ],
    "extraction": "EDINET の XBRL から機械抽出。1990 年代以前は旧有価証券報告書・年鑑類からの転記",
    "row_field": "source",
    "caveat": "持株比率は各期の開示値そのまま。信託口の名寄せは行っていない"
  },
  "shareholders": [
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 1,
      "name": "いちごトラスト・ピーティーイー・リミテッド(常任代理人 香港上海銀行東京支店)",
      "shareholding_ratio": 7.66,
      "shares_held": 2818000
    },
    {
      "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) (注５)",
      "shareholding_ratio": 7.26,
      "shares_held": 2669000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 3,
      "name": "株式会社建材社",
      "shareholding_ratio": 4.7,
      "shares_held": 1730000
    },
    {
      "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９) (注６)",
      "shareholding_ratio": 4.08,
      "shares_held": 1500000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "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) (注７)",
      "shareholding_ratio": 3.46,
      "shares_held": 1272000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 6,
      "name": "大気社協力会社持株会",
      "shareholding_ratio": 2.73,
      "shares_held": 1003000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 7,
      "name": "株式会社第二建材社",
      "shareholding_ratio": 2.72,
      "shares_held": 1000000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 8,
      "name": "ビーエヌワイエムエル ノン トリーティー アカウント(常任代理人 株式会社三菱東京ＵＦＪ銀行)",
      "shareholding_ratio": 2.53,
      "shares_held": 930000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 9,
      "name": "大気社社員持株会",
      "shareholding_ratio": 2.38,
      "shares_held": 873000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 10,
      "name": "日本生命保険相互会社",
      "shareholding_ratio": 2.36,
      "shares_held": 866000
    },
    {
      "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) (注５)",
      "shareholding_ratio": 7.77,
      "shares_held": 2859000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 2,
      "name": "いちごトラスト・ピーティーイー・リミテッド(常任代理人 香港上海銀行東京支店)",
      "shareholding_ratio": 6.15,
      "shares_held": 2262000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 3,
      "name": "株式会社建材社",
      "shareholding_ratio": 4.7,
      "shares_held": 1730000
    },
    {
      "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９) (注６)",
      "shareholding_ratio": 4.27,
      "shares_held": 1569000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "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) (注７)",
      "shareholding_ratio": 3.85,
      "shares_held": 1415000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 6,
      "name": "ザ バンク オブ ニューヨーク メロン (インターナショナル) リミテッド(常任代理人 株式会社みずほ銀行)",
      "shareholding_ratio": 2.93,
      "shares_held": 1077000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 7,
      "name": "大気社協力会社持株会",
      "shareholding_ratio": 2.81,
      "shares_held": 1034000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 8,
      "name": "株式会社第二建材社",
      "shareholding_ratio": 2.72,
      "shares_held": 1000000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 9,
      "name": "大気社社員持株会",
      "shareholding_ratio": 2.37,
      "shares_held": 872000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 10,
      "name": "日本生命保険相互会社",
      "shareholding_ratio": 2.36,
      "shares_held": 866000
    },
    {
      "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) (注３)",
      "shareholding_ratio": 8.02,
      "shares_held": 2730000
    },
    {
      "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９) (注４)",
      "shareholding_ratio": 6.17,
      "shares_held": 2103000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 3,
      "name": "株式会社建材社",
      "shareholding_ratio": 5.08,
      "shares_held": 1730000
    },
    {
      "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) (注５)",
      "shareholding_ratio": 3.81,
      "shares_held": 1298000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 5,
      "name": "大気社協力会社持株会",
      "shareholding_ratio": 3,
      "shares_held": 1023000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 6,
      "name": "株式会社第二建材社",
      "shareholding_ratio": 2.94,
      "shares_held": 1000000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 7,
      "name": "いちごトラスト・ピーティーイー・リミテッド(常任代理人 香港上海銀行東京支店)",
      "shareholding_ratio": 2.91,
      "shares_held": 992000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 8,
      "name": "ザ バンク オブ ニューヨーク メロン (インターナショナル) リミテッド(常任代理人 株式会社みずほ銀行)",
      "shareholding_ratio": 2.77,
      "shares_held": 942000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 9,
      "name": "住友不動産株式会社",
      "shareholding_ratio": 2.64,
      "shares_held": 899000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 10,
      "name": "大気社社員持株会",
      "shareholding_ratio": 2.56,
      "shares_held": 873000
    },
    {
      "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) (注５)",
      "shareholding_ratio": 10.05,
      "shares_held": 3423000
    },
    {
      "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９) (注６)",
      "shareholding_ratio": 6.71,
      "shares_held": 2285000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 3,
      "name": "株式会社建材社",
      "shareholding_ratio": 5.08,
      "shares_held": 1730000
    },
    {
      "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) (注７)",
      "shareholding_ratio": 3.67,
      "shares_held": 1250000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 5,
      "name": "大気社協力会社持株会",
      "shareholding_ratio": 2.96,
      "shares_held": 1008000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 6,
      "name": "株式会社第二建材社",
      "shareholding_ratio": 2.94,
      "shares_held": 1000000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 7,
      "name": "住友不動産株式会社",
      "shareholding_ratio": 2.88,
      "shares_held": 981000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 8,
      "name": "大気社社員持株会",
      "shareholding_ratio": 2.64,
      "shares_held": 900000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 9,
      "name": "ザ バンク オブ ニューヨーク メロン (インターナショナル) リミテッド(常任代理人株式会社みずほ銀行)",
      "shareholding_ratio": 2.62,
      "shares_held": 894000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 10,
      "name": "日本生命保険相互会社",
      "shareholding_ratio": 2.54,
      "shares_held": 866000
    },
    {
      "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) (注４)",
      "shareholding_ratio": 9.45,
      "shares_held": 3232000
    },
    {
      "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９) (注５)",
      "shareholding_ratio": 6.22,
      "shares_held": 2125000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 3,
      "name": "株式会社建材社",
      "shareholding_ratio": 5.06,
      "shares_held": 1730000
    },
    {
      "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) (注６)",
      "shareholding_ratio": 3.99,
      "shares_held": 1363000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 5,
      "name": "ザ バンク オブ ニューヨーク メロン (インターナショナル) リミテッド(常任代理人株式会社みずほ銀行)",
      "shareholding_ratio": 3.16,
      "shares_held": 1080000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 6,
      "name": "大気社協力会社持株会",
      "shareholding_ratio": 2.93,
      "shares_held": 1000000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 7,
      "name": "株式会社第二建材社",
      "shareholding_ratio": 2.92,
      "shares_held": 1000000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 8,
      "name": "住友不動産株式会社",
      "shareholding_ratio": 2.87,
      "shares_held": 981000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 9,
      "name": "大気社社員持株会",
      "shareholding_ratio": 2.71,
      "shares_held": 927000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 10,
      "name": "日本生命保険相互会社",
      "shareholding_ratio": 2.53,
      "shares_held": 866000
    },
    {
      "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)(注４)",
      "shareholding_ratio": 9.67,
      "shares_held": 3306000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 2,
      "name": "株式会社建材社",
      "shareholding_ratio": 5.06,
      "shares_held": 1730000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 3,
      "name": "株式会社日本カストディ銀行(信託口９)(注５)",
      "shareholding_ratio": 4.94,
      "shares_held": 1690000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 4,
      "name": "株式会社日本カストディ銀行(信託口)(注６)",
      "shareholding_ratio": 3.32,
      "shares_held": 1134000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 5,
      "name": "ザ バンク オブ ニューヨーク メロン (インターナショナル) リミテッド(常任代理人株式会社みずほ銀行)",
      "shareholding_ratio": 3.08,
      "shares_held": 1054000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 6,
      "name": "大気社協力会社持株会",
      "shareholding_ratio": 3.08,
      "shares_held": 1053000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 7,
      "name": "大気社社員持株会",
      "shareholding_ratio": 2.98,
      "shares_held": 1020000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 8,
      "name": "株式会社第二建材社",
      "shareholding_ratio": 2.92,
      "shares_held": 1000000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 9,
      "name": "住友不動産株式会社",
      "shareholding_ratio": 2.87,
      "shares_held": 981000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 10,
      "name": "日本生命保険相互会社",
      "shareholding_ratio": 2.53,
      "shares_held": 866000
    },
    {
      "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)(注４)",
      "shareholding_ratio": 20.58,
      "shares_held": 7040000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 2,
      "name": "株式会社建材社",
      "shareholding_ratio": 5.06,
      "shares_held": 1730000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 3,
      "name": "株式会社日本カストディ銀行(信託口)(注５)",
      "shareholding_ratio": 3.98,
      "shares_held": 1362000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 4,
      "name": "大気社社員持株会",
      "shareholding_ratio": 3.2,
      "shares_held": 1096000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 5,
      "name": "大気社協力会社持株会",
      "shareholding_ratio": 3.15,
      "shares_held": 1077000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 6,
      "name": "ザ バンク オブ ニューヨーク メロン (インターナショナル) リミテッド(常任代理人株式会社みずほ銀行)",
      "shareholding_ratio": 3.06,
      "shares_held": 1047000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 7,
      "name": "株式会社第二建材社",
      "shareholding_ratio": 2.92,
      "shares_held": 1000000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 8,
      "name": "住友不動産株式会社",
      "shareholding_ratio": 2.87,
      "shares_held": 981000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 9,
      "name": "日本生命保険相互会社",
      "shareholding_ratio": 2.53,
      "shares_held": 866000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 10,
      "name": "株式会社みずほ銀行",
      "shareholding_ratio": 1.93,
      "shares_held": 659000
    },
    {
      "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)(注５)",
      "shareholding_ratio": 19.47,
      "shares_held": 6488000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 2,
      "name": "株式会社建材社",
      "shareholding_ratio": 5.19,
      "shares_held": 1730000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 3,
      "name": "大気社社員持株会",
      "shareholding_ratio": 3.53,
      "shares_held": 1175000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 4,
      "name": "株式会社日本カストディ銀行(信託口)(注６)",
      "shareholding_ratio": 3.52,
      "shares_held": 1174000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 5,
      "name": "住友不動産株式会社",
      "shareholding_ratio": 3.41,
      "shares_held": 1134000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 6,
      "name": "大気社協力会社持株会",
      "shareholding_ratio": 3.2,
      "shares_held": 1066000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 7,
      "name": "ザ バンク オブ ニューヨーク メロン (インターナショナル) リミテッド １３１８００(常任代理人株式会社みずほ銀行)",
      "shareholding_ratio": 3.12,
      "shares_held": 1041000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 8,
      "name": "株式会社第二建材社",
      "shareholding_ratio": 3,
      "shares_held": 1000000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 9,
      "name": "日本生命保険相互会社",
      "shareholding_ratio": 2.6,
      "shares_held": 866000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 10,
      "name": "株式会社みずほ銀行",
      "shareholding_ratio": 1.98,
      "shares_held": 659000
    },
    {
      "FY": "FY23",
      "period": "2024/3",
      "rank": 1,
      "name": "日本マスタートラスト信託銀行株式会社(信託口)(注１,４)",
      "shareholding_ratio": 14.68,
      "shares_held": 4839000
    },
    {
      "FY": "FY23",
      "period": "2024/3",
      "rank": 2,
      "name": "株式会社建材社",
      "shareholding_ratio": 5.25,
      "shares_held": 1730000
    },
    {
      "FY": "FY23",
      "period": "2024/3",
      "rank": 3,
      "name": "株式会社日本カストディ銀行(信託口)(注５)",
      "shareholding_ratio": 3.79,
      "shares_held": 1250000
    },
    {
      "FY": "FY23",
      "period": "2024/3",
      "rank": 4,
      "name": "大気社社員持株会",
      "shareholding_ratio": 3.59,
      "shares_held": 1184000
    },
    {
      "FY": "FY23",
      "period": "2024/3",
      "rank": 5,
      "name": "住友不動産株式会社",
      "shareholding_ratio": 3.44,
      "shares_held": 1134000
    },
    {
      "FY": "FY23",
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      "shareholders": 3353,
      "shares_units": 65744,
      "ratio": 19.6
    },
    {
      "FY": "FY24",
      "period": "2025/3",
      "category_key": "total",
      "category": "合計",
      "shareholders": 3773,
      "shares_units": 335457,
      "ratio": null
    }
  ]
}