{
  "spec_version": "3",
  "endpoint": "shareholders",
  "stock_code": "7823",
  "company_name": "アートネイチャー",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/7823/shareholders/",
  "api_url": "/api/7823/shareholders.json",
  "updated": "2026-09-06",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/7823/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": "五十嵐 祥剛",
      "shareholding_ratio": 18.15,
      "shares_held": 6242640
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 2,
      "name": "有限会社アイ・コーポレーション",
      "shareholding_ratio": 9.6,
      "shares_held": 3302000
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 3,
      "name": "塚本 武",
      "shareholding_ratio": 7.41,
      "shares_held": 2550600
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 4,
      "name": "STATE STREET BANK AND TRUST COMPANY （常任代理人 香港上海銀行東京支店 カストディ業務部）",
      "shareholding_ratio": 5.52,
      "shares_held": 1899500
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 5,
      "name": "KAS BANK CLIENT ACC RE AIF （常任代理人 香港上海銀行東京支店 カストディ業務部）",
      "shareholding_ratio": 3.74,
      "shares_held": 1288378
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 6,
      "name": "日本マスタートラスト信託銀行株式会社（信託口）",
      "shareholding_ratio": 2.89,
      "shares_held": 995600
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 7,
      "name": "株式会社アートネイチャー",
      "shareholding_ratio": 2.88,
      "shares_held": 992138
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 8,
      "name": "五十嵐 啓介",
      "shareholding_ratio": 2.87,
      "shares_held": 989200
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 9,
      "name": "石井 英昭",
      "shareholding_ratio": 2.84,
      "shares_held": 979900
    },
    {
      "FY": "FY15",
      "period": "2016/3",
      "rank": 10,
      "name": "NORTHERN TRUST CO.（AVFC) RE FIDELITY FUNDS （常任代理人 香港上海銀行東京支店 カストディ業務部）",
      "shareholding_ratio": 2.52,
      "shares_held": 868500
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 1,
      "name": "五十嵐 祥剛",
      "shareholding_ratio": 18.17,
      "shares_held": 6250440
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 2,
      "name": "有限会社アイ・コーポレーション",
      "shareholding_ratio": 9.6,
      "shares_held": 3302000
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 3,
      "name": "塚本 武",
      "shareholding_ratio": 7.41,
      "shares_held": 2550600
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 4,
      "name": "STATE STREET BANK AND TRUST COMPANY （常任代理人 香港上海銀行東京支店 カストディ業務部）",
      "shareholding_ratio": 5.2,
      "shares_held": 1789600
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 5,
      "name": "五十嵐 啓介",
      "shareholding_ratio": 2.87,
      "shares_held": 989200
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 6,
      "name": "石井 英昭",
      "shareholding_ratio": 2.84,
      "shares_held": 979900
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 7,
      "name": "株式会社アートネイチャー",
      "shareholding_ratio": 2.83,
      "shares_held": 975738
    },
    {
      "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（信託口）",
      "shareholding_ratio": 2.59,
      "shares_held": 894200
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 9,
      "name": "アートネイチャー社員持株会",
      "shareholding_ratio": 2.1,
      "shares_held": 722922
    },
    {
      "FY": "FY16",
      "period": "2017/3",
      "rank": 10,
      "name": "みずほキャピタル株式会社",
      "shareholding_ratio": 1.74,
      "shares_held": 600000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 1,
      "name": "五十嵐 祥剛",
      "shareholding_ratio": 18.88,
      "shares_held": 6258440
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 2,
      "name": "有限会社アイ・コーポレーション",
      "shareholding_ratio": 9.96,
      "shares_held": 3302000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 3,
      "name": "塚本 武",
      "shareholding_ratio": 7.69,
      "shares_held": 2550600
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 4,
      "name": "STATE STREET BANK AND TRUST COMPANY （常任代理人 香港上海銀行東京支店 カストディ業務部）",
      "shareholding_ratio": 5.08,
      "shares_held": 1686800
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "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": 3.02,
      "shares_held": 1002000
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 6,
      "name": "五十嵐 啓介",
      "shareholding_ratio": 2.98,
      "shares_held": 989200
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 7,
      "name": "石井 英昭",
      "shareholding_ratio": 2.95,
      "shares_held": 979900
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 8,
      "name": "アートネイチャー社員持株会",
      "shareholding_ratio": 2.17,
      "shares_held": 720322
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "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）",
      "shareholding_ratio": 1.89,
      "shares_held": 629100
    },
    {
      "FY": "FY17",
      "period": "2018/3",
      "rank": 10,
      "name": "みずほキャピタル株式会社",
      "shareholding_ratio": 1.81,
      "shares_held": 600000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 1,
      "name": "五十嵐 祥剛",
      "shareholding_ratio": 18.71,
      "shares_held": 6166940
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 2,
      "name": "有限会社アイ・コーポレーション",
      "shareholding_ratio": 10.01,
      "shares_held": 3302000
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 3,
      "name": "塚本 武",
      "shareholding_ratio": 7.73,
      "shares_held": 2550600
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 4,
      "name": "SSBTC CLIENT OMNIBUS ACCOUNT",
      "shareholding_ratio": 4.79,
      "shares_held": 1581127
    },
    {
      "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": 3.29,
      "shares_held": 1086800
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 6,
      "name": "五十嵐 啓介",
      "shareholding_ratio": 3,
      "shares_held": 989200
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 7,
      "name": "石井 英昭",
      "shareholding_ratio": 2.97,
      "shares_held": 979900
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 8,
      "name": "アートネイチャー社員持株会",
      "shareholding_ratio": 2.18,
      "shares_held": 720535
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "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）",
      "shareholding_ratio": 1.85,
      "shares_held": 612300
    },
    {
      "FY": "FY18",
      "period": "2019/3",
      "rank": 10,
      "name": "NORTHERN TRUST CO.（AVFC） RE FIDELITY FUNDS",
      "shareholding_ratio": 1.55,
      "shares_held": 511600
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 1,
      "name": "五十嵐 祥剛",
      "shareholding_ratio": 18.85,
      "shares_held": 6175640
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 2,
      "name": "有限会社アイ・コーポレーション",
      "shareholding_ratio": 10.07,
      "shares_held": 3302000
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 3,
      "name": "塚本 武",
      "shareholding_ratio": 7.78,
      "shares_held": 2550600
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 4,
      "name": "NORTHERN TRUST CO.(AVFC) RE FIDELITY FONDS",
      "shareholding_ratio": 5.08,
      "shares_held": 1667500
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "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": 4.13,
      "shares_held": 1355300
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 6,
      "name": "五十嵐 啓介",
      "shareholding_ratio": 3.01,
      "shares_held": 989200
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 7,
      "name": "石井 英昭",
      "shareholding_ratio": 2.95,
      "shares_held": 969300
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 8,
      "name": "アートネイチャー社員持株会",
      "shareholding_ratio": 2.21,
      "shares_held": 726435
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "rank": 9,
      "name": "光通信株式会社",
      "shareholding_ratio": 1.99,
      "shares_held": 652800
    },
    {
      "FY": "FY19",
      "period": "2020/3",
      "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）",
      "shareholding_ratio": 1.8,
      "shares_held": 590100
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 1,
      "name": "五十嵐 祥剛",
      "shareholding_ratio": 18.93,
      "shares_held": 6177940
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 2,
      "name": "有限会社アイ・コーポレーション",
      "shareholding_ratio": 10.12,
      "shares_held": 3302000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 3,
      "name": "塚本 武",
      "shareholding_ratio": 7.81,
      "shares_held": 2550600
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 4,
      "name": "光通信株式会社",
      "shareholding_ratio": 6.36,
      "shares_held": 2077300
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 5,
      "name": "NORTHERN TRUST CO.(AVFC) RE FIDELITY FONDS（常任代理人 香港上海銀行東京支店 カストディ業務部）",
      "shareholding_ratio": 4.91,
      "shares_held": 1603000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 6,
      "name": "日本マスタートラスト信託銀行株式会社（信託口）",
      "shareholding_ratio": 4.15,
      "shares_held": 1357000
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 7,
      "name": "五十嵐 啓介",
      "shareholding_ratio": 3.03,
      "shares_held": 989200
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 8,
      "name": "石井 英昭",
      "shareholding_ratio": 2.97,
      "shares_held": 969300
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 9,
      "name": "アートネイチャー社員持株会",
      "shareholding_ratio": 2.41,
      "shares_held": 786235
    },
    {
      "FY": "FY20",
      "period": "2021/3",
      "rank": 10,
      "name": "株式会社日本カストディ銀行（信託口）",
      "shareholding_ratio": 1.76,
      "shares_held": 575800
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 1,
      "name": "五十嵐 祥剛",
      "shareholding_ratio": 18.92,
      "shares_held": 6177940
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 2,
      "name": "有限会社アイ・コーポレーション",
      "shareholding_ratio": 10.11,
      "shares_held": 3302000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 3,
      "name": "塚本 武",
      "shareholding_ratio": 7.81,
      "shares_held": 2550600
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 4,
      "name": "光通信株式会社",
      "shareholding_ratio": 7.48,
      "shares_held": 2443100
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "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": 6.95,
      "shares_held": 2270800
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 6,
      "name": "NORTHERN TRUST CO.(AVFC) RE FIDELITY FUNDS（常任代理人 香港上海銀行東京支店 カストディ業務部）",
      "shareholding_ratio": 4.91,
      "shares_held": 1603000
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 7,
      "name": "五十嵐 啓介",
      "shareholding_ratio": 3.03,
      "shares_held": 989200
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 8,
      "name": "アートネイチャー社員持株会",
      "shareholding_ratio": 2.51,
      "shares_held": 819835
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 9,
      "name": "株式会社日本カストディ銀行（信託口）",
      "shareholding_ratio": 1.83,
      "shares_held": 599100
    },
    {
      "FY": "FY21",
      "period": "2022/3",
      "rank": 10,
      "name": "石井 英昭",
      "shareholding_ratio": 1.69,
      "shares_held": 553000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 1,
      "name": "五十嵐 祥剛",
      "shareholding_ratio": 18.84,
      "shares_held": 6177940
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 2,
      "name": "有限会社アイ・コーポレーション",
      "shareholding_ratio": 10.06,
      "shares_held": 3302000
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 3,
      "name": "塚本 武",
      "shareholding_ratio": 7.77,
      "shares_held": 2550600
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 4,
      "name": "日本マスタートラスト信託銀行株式会社（信託口）",
      "shareholding_ratio": 7.6,
      "shares_held": 2492900
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 5,
      "name": "光通信株式会社",
      "shareholding_ratio": 7.45,
      "shares_held": 2443100
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 6,
      "name": "NORTHERN TRUST CO.(AVFC) RE FIDELITY FUNDS（常任代理人 香港上海銀行東京支店 カストディ業務部）",
      "shareholding_ratio": 5.18,
      "shares_held": 1698600
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 7,
      "name": "五十嵐 啓介",
      "shareholding_ratio": 3.01,
      "shares_held": 989200
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 8,
      "name": "アートネイチャー社員持株会",
      "shareholding_ratio": 2.51,
      "shares_held": 824135
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 9,
      "name": "株式会社日本カストディ銀行（信託口）",
      "shareholding_ratio": 2.06,
      "shares_held": 675700
    },
    {
      "FY": "FY22",
      "period": "2023/3",
      "rank": 10,
      "name": "石井 英昭",
      "shareholding_ratio": 1.68,
      "shares_held": 553000
    },
    {
      "FY": "FY23",
      "period": "2024/3",
      "rank": 1,
      "name": "五十嵐 祥剛",
      "shareholding_ratio": 18.61,
      "shares_held": 6177940
    },
    {
      "FY": "FY23",
      "period": "2024/3",
      "rank": 2,
      "name": "有限会社アイ・コーポレーション",
      "shareholding_ratio": 9.94,
      "shares_held": 3302000
    },
    {
      "FY": "FY23",
      "period": "2024/3",
      "rank": 3,
      "name": "塚本 武",
      "shareholding_ratio": 7.68,
      "shares_held": 2550600
    },
    {
      "FY": "FY23",
      "period": "2024/3",
      "rank": 4,
      "name": "光通信株式会社",
      "shareholding_ratio": 7.36,
      "shares_held": 2443100
    },
    {
      "FY": "FY23",
      "period": "2024/3",
      "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": 6.44,
      "shares_held": 2140300
    },
    {
      "FY": "FY23",
      "period": "2024/3",
      "rank": 6,
      "name": "NORTHERN TRUST CO.(AVFC) RE FIDELITY FUNDS（常任代理人 香港上海銀行東京支店 カストディ業務部）",
      "shareholding_ratio": 5.25,
      "shares_held": 1745900
    },
    {
      "FY": "FY23",
      "period": "2024/3",
      "rank": 7,
      "name": "株式会社UH Partners 2",
      "shareholding_ratio": 3.25,
      "shares_held": 1081300
    },
    {
      "FY": "FY23",
      "period": "2024/3",
      "rank": 8,
      "name": "五十嵐 啓介",
      "shareholding_ratio": 2.98,
      "shares_held": 989200
    },
    {
      "FY": "FY23",
      "period": "2024/3",
      "rank": 9,
      "name": "アートネイチャー社員持株会",
      "shareholding_ratio": 2.51,
      "shares_held": 835235
    },
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