{
  "spec_version": "3",
  "endpoint": "shareholders",
  "stock_code": "5463",
  "company_name": "丸一鋼管",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/5463/shareholders/",
  "api_url": "/api/5463/shareholders.json",
  "updated": "2026-08-13",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/5463/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": "JFEスチール株式会社",
      "shareholding_ratio": 4.61,
      "shares_held": 4337000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 2,
      "name": "株式会社ヨシムラホールディングス",
      "shareholding_ratio": 4.47,
      "shares_held": 4200000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 3,
      "name": "株式会社三井住友銀行",
      "shareholding_ratio": 4.15,
      "shares_held": 3900000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 4,
      "name": "株式会社三菱東京UFJ銀行",
      "shareholding_ratio": 4.13,
      "shares_held": 3886000
    },
    {
      "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（三井住友信託銀行再信託分・JFEスチール株式会社退職給付信託口）",
      "shareholding_ratio": 3.19,
      "shares_held": 3003000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "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）",
      "shareholding_ratio": 2.99,
      "shares_held": 2814000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 7,
      "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": 2.69,
      "shares_held": 2525000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 8,
      "name": "吉 村 精 仁",
      "shareholding_ratio": 2.66,
      "shares_held": 2496000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 9,
      "name": "CBHK-CHINA STEEL CORPORATION（常任代理人 シティバンク銀行株式会社）",
      "shareholding_ratio": 2.13,
      "shares_held": 2000000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 10,
      "name": "堀 川 金 子",
      "shareholding_ratio": 1.7,
      "shares_held": 1599000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 1,
      "name": "株式会社ヨシムラホールディングス",
      "shareholding_ratio": 4.47,
      "shares_held": 4200000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 2,
      "name": "株式会社三井住友銀行",
      "shareholding_ratio": 4.15,
      "shares_held": 3900000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 3,
      "name": "株式会社三菱東京UFJ銀行",
      "shareholding_ratio": 4.13,
      "shares_held": 3886000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 4,
      "name": "日本トラスティ・サービス信託銀行株式会社（信託口）",
      "shareholding_ratio": 3.62,
      "shares_held": 3399000
    },
    {
      "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（三井住友信託銀行再信託分・JFEスチール株式会社退職給付信託口）",
      "shareholding_ratio": 3.19,
      "shares_held": 3003000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 6,
      "name": "JFEスチール株式会社",
      "shareholding_ratio": 2.77,
      "shares_held": 2602000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 7,
      "name": "吉 村 精 仁",
      "shareholding_ratio": 2.66,
      "shares_held": 2496000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 8,
      "name": "CBHK-CHINA STEEL CORPORATION（常任代理人 シティバンク銀行株式会社）",
      "shareholding_ratio": 2.13,
      "shares_held": 2000000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 9,
      "name": "日本マスタートラスト信託銀行株式会社（信託口）",
      "shareholding_ratio": 2.08,
      "shares_held": 1953000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 10,
      "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": 1.96,
      "shares_held": 1838000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 1,
      "name": "株式会社ヨシムラホールディングス",
      "shareholding_ratio": 5.06,
      "shares_held": 4200000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 2,
      "name": "株式会社三井住友銀行",
      "shareholding_ratio": 4.7,
      "shares_held": 3900000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 3,
      "name": "株式会社三菱東京UFJ銀行",
      "shareholding_ratio": 4.69,
      "shares_held": 3886000
    },
    {
      "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）",
      "shareholding_ratio": 4.15,
      "shares_held": 3443000
    },
    {
      "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（三井住友信託銀行再信託分・JFEスチール株式会社退職給付信託口）",
      "shareholding_ratio": 3.62,
      "shares_held": 3003000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 6,
      "name": "JFEスチール株式会社",
      "shareholding_ratio": 3.14,
      "shares_held": 2602000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 7,
      "name": "吉 村 精 仁",
      "shareholding_ratio": 3.01,
      "shares_held": 2496000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 8,
      "name": "日本マスタートラスト信託銀行株式会社（信託口）",
      "shareholding_ratio": 2.98,
      "shares_held": 2473000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 9,
      "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": 2.98,
      "shares_held": 2470000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 10,
      "name": "CHINA STEEL CORPORATION（常任代理人 シティバンク、エヌ・エイ）",
      "shareholding_ratio": 2.41,
      "shares_held": 2000000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 1,
      "name": "株式会社ヨシムラホールディングス",
      "shareholding_ratio": 5.06,
      "shares_held": 4200000
    },
    {
      "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": 4.75,
      "shares_held": 3939000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 3,
      "name": "株式会社三井住友銀行",
      "shareholding_ratio": 4.7,
      "shares_held": 3900000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 4,
      "name": "株式会社三菱UFJ銀行",
      "shareholding_ratio": 4.69,
      "shares_held": 3886000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 5,
      "name": "日本マスタートラスト信託銀行株式会社（信託口）",
      "shareholding_ratio": 3.87,
      "shares_held": 3208000
    },
    {
      "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（三井住友信託銀行再信託分・JFEスチール株式会社退職給付信託口）",
      "shareholding_ratio": 3.62,
      "shares_held": 3003000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 7,
      "name": "JFEスチール株式会社",
      "shareholding_ratio": 3.14,
      "shares_held": 2602000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 8,
      "name": "吉 村 精 仁",
      "shareholding_ratio": 3.01,
      "shares_held": 2496000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 9,
      "name": "CHINA STEEL CORPORATION（常任代理人 シティバンク、エヌ・エイ）",
      "shareholding_ratio": 2.41,
      "shares_held": 2000000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 10,
      "name": "堀 川 金 子",
      "shareholding_ratio": 1.93,
      "shares_held": 1599000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 1,
      "name": "株式会社ヨシムラホールディングス",
      "shareholding_ratio": 5.67,
      "shares_held": 4700000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "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": 5.28,
      "shares_held": 4375000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 3,
      "name": "株式会社三井住友銀行",
      "shareholding_ratio": 4.7,
      "shares_held": 3900000
    },
    {
      "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）",
      "shareholding_ratio": 4.69,
      "shares_held": 3890000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 5,
      "name": "株式会社三菱UFJ銀行",
      "shareholding_ratio": 4.69,
      "shares_held": 3886000
    },
    {
      "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（三井住友信託銀行再信託分・JFEスチール株式会社退職給付信託口）",
      "shareholding_ratio": 3.62,
      "shares_held": 3003000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 7,
      "name": "JFEスチール株式会社",
      "shareholding_ratio": 3.14,
      "shares_held": 2602000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 8,
      "name": "CHINA STEEL CORPORATION（常任代理人 シティバンク、エヌ・エイ）",
      "shareholding_ratio": 2.41,
      "shares_held": 2000000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 9,
      "name": "NORTHERN TRUST CO.(AVFC)RE THE KILTEARN GLOBAL EQUITY FUND（常任代理人 香港上海銀行）",
      "shareholding_ratio": 2.32,
      "shares_held": 1924000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 10,
      "name": "堀 川 金 子",
      "shareholding_ratio": 1.93,
      "shares_held": 1599000
    },
    {
      "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": 5.99,
      "shares_held": 4918000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 2,
      "name": "株式会社ヨシムラホールディングス",
      "shareholding_ratio": 5.73,
      "shares_held": 4700000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 3,
      "name": "株式会社三井住友銀行",
      "shareholding_ratio": 4.75,
      "shares_held": 3900000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 4,
      "name": "株式会社三菱UFJ銀行",
      "shareholding_ratio": 4.73,
      "shares_held": 3886000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 5,
      "name": "株式会社日本カストディ銀行（信託口）",
      "shareholding_ratio": 4.58,
      "shares_held": 3755000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 6,
      "name": "株式会社日本カストディ銀行（三井住友信託銀行再信託分・JFEスチール株式会社退職給付信託口）",
      "shareholding_ratio": 3.66,
      "shares_held": 3003000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 7,
      "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": 2.92,
      "shares_held": 2399000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 8,
      "name": "CHINA STEEL CORPORATION（常任代理人 シティバンク、エヌ・エイ）",
      "shareholding_ratio": 2.43,
      "shares_held": 2000000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 9,
      "name": "丸一鋼管共栄持株会",
      "shareholding_ratio": 1.87,
      "shares_held": 1538000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 10,
      "name": "SSBTC CLIENT OMNIBUS ACCOUNT（常任代理人 香港上海銀行）",
      "shareholding_ratio": 1.74,
      "shares_held": 1433000
    },
    {
      "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": 11.8,
      "shares_held": 9449000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 2,
      "name": "株式会社ヨシムラホールディングス",
      "shareholding_ratio": 5.87,
      "shares_held": 4700000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 3,
      "name": "株式会社三井住友銀行",
      "shareholding_ratio": 4.87,
      "shares_held": 3900000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 4,
      "name": "株式会社三菱UFJ銀行",
      "shareholding_ratio": 4.85,
      "shares_held": 3886000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 5,
      "name": "株式会社日本カストディ銀行（信託口）",
      "shareholding_ratio": 4.77,
      "shares_held": 3821000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 6,
      "name": "株式会社日本カストディ銀行（三井住友信託銀行再信託分・JFEスチール株式会社退職給付信託口）",
      "shareholding_ratio": 3.75,
      "shares_held": 3003000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 7,
      "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": 2.9,
      "shares_held": 2321000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 8,
      "name": "CHINA STEEL CORPORATION（常任代理人 シティバンク、エヌ・エイ）",
      "shareholding_ratio": 2.49,
      "shares_held": 2000000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 9,
      "name": "SSBTC CLIENT OMNIBUS ACCOUNT（常任代理人 香港上海銀行）",
      "shareholding_ratio": 2.1,
      "shares_held": 1687000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 10,
      "name": "丸一鋼管共栄持株会",
      "shareholding_ratio": 1.91,
      "shares_held": 1529000
    },
    {
      "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": 11.5,
      "shares_held": 9182000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 2,
      "name": "株式会社ヨシムラホールディングス",
      "shareholding_ratio": 5.88,
      "shares_held": 4700000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 3,
      "name": "株式会社三井住友銀行",
      "shareholding_ratio": 4.88,
      "shares_held": 3900000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 4,
      "name": "株式会社三菱UFJ銀行",
      "shareholding_ratio": 4.86,
      "shares_held": 3886000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 5,
      "name": "株式会社日本カストディ銀行（信託口）",
      "shareholding_ratio": 3.91,
      "shares_held": 3124000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 6,
      "name": "株式会社日本カストディ銀行（三井住友信託銀行再信託分・JFEスチール株式会社退職給付信託口）",
      "shareholding_ratio": 3.76,
      "shares_held": 3003000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 7,
      "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": 3.43,
      "shares_held": 2743000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 8,
      "name": "CHINA STEEL CORPORATION（常任代理人 シティバンク、エヌ・エイ）",
      "shareholding_ratio": 2.5,
      "shares_held": 2000000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 9,
      "name": "SSBTC CLIENT OMNIBUS ACCOUNT（常任代理人 香港上海銀行）",
      "shareholding_ratio": 2.11,
      "shares_held": 1690000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 10,
      "name": "丸一鋼管共栄持株会",
      "shareholding_ratio": 1.97,
      "shares_held": 1578000
    },
    {
      "FY": "FY23",
      "period": "2024/3",
      "rank": 1,
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