{
 "schema_version": 1,
 "id": "1890-20250812",
 "type": "TOB",
 "status": "completed",
 "announced_date": "2025-08-12",
 "target": {
  "edinet_code": "E00082",
  "sec_code": "1890",
  "name": "東洋建設株式会社",
  "name_en": "TOYO CONSTRUCTION CO.,LTD.",
  "industry": "建設業",
  "industry_en": "Construction"
 },
 "acquirer": {
  "edinet_code": "E00052",
  "sec_code": "1801",
  "name": "大成建設株式会社",
  "name_en": "taisei corporation",
  "industry": "建設業",
  "industry_en": "Construction"
 },
 "anchor_doc_id": "S100WIII",
 "needs_review": false,
 "review_reason": null,
 "terms": {
  "tender_price": {
   "history": [
    {
     "value": 1750,
     "unit": "yen",
     "as_of_date": null,
     "source": {
      "doc_id": "S100WIII",
      "doc_url": "https://disclosure2dl.edinet-fsa.go.jp/searchdocument/pdf/S100WIII.pdf",
      "submitted": "2025-08-12",
      "quote": "本公開買付価格である1,750円は、本公開買付けの公表日の前営業日である2025年８月７日の東京証券取引所プライム市場における対象者株式の終値1,700円に対して2.94％"
     }
    }
   ],
   "latest": {
    "value": 1750,
    "unit": "yen",
    "as_of_date": null,
    "source": {
     "doc_id": "S100WIII",
     "doc_url": "https://disclosure2dl.edinet-fsa.go.jp/searchdocument/pdf/S100WIII.pdf",
     "submitted": "2025-08-12",
     "quote": "本公開買付価格である1,750円は、本公開買付けの公表日の前営業日である2025年８月７日の東京証券取引所プライム市場における対象者株式の終値1,700円に対して2.94％"
    }
   }
  },
  "period_business_days": {
   "history": [
    {
     "value": 30,
     "unit": "business_days",
     "as_of_date": null,
     "source": {
      "doc_id": "S100WIII",
      "doc_url": "https://disclosure2dl.edinet-fsa.go.jp/searchdocument/pdf/S100WIII.pdf",
      "submitted": "2025-08-12",
      "quote": "本公開買付けにおける買付け等の期間(以下「公開買付期間」といいます。)は30営業日とされており"
     }
    }
   ],
   "latest": {
    "value": 30,
    "unit": "business_days",
    "as_of_date": null,
    "source": {
     "doc_id": "S100WIII",
     "doc_url": "https://disclosure2dl.edinet-fsa.go.jp/searchdocument/pdf/S100WIII.pdf",
     "submitted": "2025-08-12",
     "quote": "本公開買付けにおける買付け等の期間(以下「公開買付期間」といいます。)は30営業日とされており"
    }
   }
  },
  "min_shares": {
   "history": [
    {
     "value": 33035700,
     "unit": "shares",
     "as_of_date": null,
     "source": {
      "doc_id": "S100WIII",
      "doc_url": "https://disclosure2dl.edinet-fsa.go.jp/searchdocument/pdf/S100WIII.pdf",
      "submitted": "2025-08-12",
      "quote": "買付予定数の下限を33,035,700株(所有割合：35.02％)として設定しており"
     }
    }
   ],
   "latest": {
    "value": 33035700,
    "unit": "shares",
    "as_of_date": null,
    "source": {
     "doc_id": "S100WIII",
     "doc_url": "https://disclosure2dl.edinet-fsa.go.jp/searchdocument/pdf/S100WIII.pdf",
     "submitted": "2025-08-12",
     "quote": "買付予定数の下限を33,035,700株(所有割合：35.02％)として設定しており"
    }
   }
  },
  "tendered_shares": {
   "history": [
    {
     "value": 58305532,
     "unit": "shares",
     "as_of_date": null,
     "source": {
      "doc_id": "S100WPOE",
      "doc_url": "https://disclosure2dl.edinet-fsa.go.jp/searchdocument/pdf/S100WPOE.pdf",
      "submitted": "2025-09-25",
      "quote": "応募株券等の数の合計(58,305,532株)"
     }
    }
   ],
   "latest": {
    "value": 58305532,
    "unit": "shares",
    "as_of_date": null,
    "source": {
     "doc_id": "S100WPOE",
     "doc_url": "https://disclosure2dl.edinet-fsa.go.jp/searchdocument/pdf/S100WPOE.pdf",
     "submitted": "2025-09-25",
     "quote": "応募株券等の数の合計(58,305,532株)"
    }
   }
  },
  "result": {
   "history": [
    {
     "value": "成立",
     "unit": "text",
     "as_of_date": null,
     "source": {
      "doc_id": "S100WPOE",
      "doc_url": "https://disclosure2dl.edinet-fsa.go.jp/searchdocument/pdf/S100WPOE.pdf",
      "submitted": "2025-09-25",
      "quote": "応募株券等の数の合計(58,305,532株)が買付予定数の下限(33,035,700株)以上となりましたので、公開買付開始公告及び公開買付届出書に記載のとおり、応募株券等の全部の買付け等を行います。"
     }
    }
   ],
   "latest": {
    "value": "成立",
    "unit": "text",
    "as_of_date": null,
    "source": {
     "doc_id": "S100WPOE",
     "doc_url": "https://disclosure2dl.edinet-fsa.go.jp/searchdocument/pdf/S100WPOE.pdf",
     "submitted": "2025-09-25",
     "quote": "応募株券等の数の合計(58,305,532株)が買付予定数の下限(33,035,700株)以上となりましたので、公開買付開始公告及び公開買付届出書に記載のとおり、応募株券等の全部の買付け等を行います。"
    }
   }
  }
 },
 "premiums": [
  {
   "value": 2.94,
   "unit": "percent",
   "as_of_date": "2025-08-07",
   "source": {
    "doc_id": "S100WIMH",
    "doc_url": "https://disclosure2dl.edinet-fsa.go.jp/searchdocument/pdf/S100WIMH.pdf",
    "submitted": "2025-08-12",
    "quote": "本公開買付けの公表日の前営業日である2025年８月７日の東京証券取引所プライム市場における当社株式の終値1,700円に対して2.94％"
   },
   "basis": "前営業日終値",
   "basis_en": "Closing price on the business day before announcement"
  },
  {
   "value": 8.49,
   "unit": "percent",
   "as_of_date": "2025-08-07",
   "source": {
    "doc_id": "S100WIMH",
    "doc_url": "https://disclosure2dl.edinet-fsa.go.jp/searchdocument/pdf/S100WIMH.pdf",
    "submitted": "2025-08-12",
    "quote": "同日までの過去１ヶ月間の終値の単純平均値1,613円に対して8.49％"
   },
   "basis": "過去1ヶ月間の終値単純平均値",
   "basis_en": "1-month simple average closing price"
  },
  {
   "value": 17.29,
   "unit": "percent",
   "as_of_date": "2025-08-07",
   "source": {
    "doc_id": "S100WIMH",
    "doc_url": "https://disclosure2dl.edinet-fsa.go.jp/searchdocument/pdf/S100WIMH.pdf",
    "submitted": "2025-08-12",
    "quote": "同過去３ヶ月間の終値の単純平均値1,492円に対して17.29％"
   },
   "basis": "過去3ヶ月間の終値単純平均値",
   "basis_en": "3-month simple average closing price"
  },
  {
   "value": 23.67,
   "unit": "percent",
   "as_of_date": "2025-08-07",
   "source": {
    "doc_id": "S100WIMH",
    "doc_url": "https://disclosure2dl.edinet-fsa.go.jp/searchdocument/pdf/S100WIMH.pdf",
    "submitted": "2025-08-12",
    "quote": "同過去６ヶ月間の終値の単純平均値1,415円に対して23.67％のプレミアム"
   },
   "basis": "過去6ヶ月間の終値単純平均値",
   "basis_en": "6-month simple average closing price"
  }
 ],
 "profile": {
  "extracted": true,
  "listing": {
   "value": "delist",
   "source": {
    "doc_id": "S100WIMH",
    "doc_url": "https://disclosure2dl.edinet-fsa.go.jp/searchdocument/pdf/S100WIMH.pdf",
    "submitted": "2025-08-12",
    "quote": "最終的に、公開買付者による当社の完全子会社化を企図しているとのことです。"
   }
  },
  "discount_tob": {
   "value": false,
   "source": null
  },
  "acquirer_type": {
   "value": "strategic",
   "source": {
    "doc_id": "S100WIMH",
    "doc_url": "https://disclosure2dl.edinet-fsa.go.jp/searchdocument/pdf/S100WIMH.pdf",
    "submitted": "2025-08-12",
    "quote": "公開買付者は、本書提出日現在、当社株式を所有していないとのことです。"
   }
  },
  "auction": {
   "value": false,
   "source": null
  },
  "competing_offer": {
   "value": false,
   "source": null
  },
  "special_committee": {
   "value": true,
   "source": {
    "doc_id": "S100WIMH",
    "doc_url": "https://disclosure2dl.edinet-fsa.go.jp/searchdocument/pdf/S100WIMH.pdf",
    "submitted": "2025-08-12",
    "quote": "本特別委員会は、当社のファイナンシャル・アドバイザー及び第三者算定機関であるＰｗＣアドバイザリー並びに当社のリーガル・アドバイザーである長島・大野・常松法律事務所について、その独立性及び専門性に問題がないことを確認の上、その選任を承認いたしました。"
   }
  },
  "sc_own_valuer": null,
  "fairness_opinions": [],
  "proposals": [
   {
    "date": null,
    "price": 1784,
    "proposer": "target_or_committee",
    "source": {
     "doc_id": "S100WIMH",
     "doc_url": "https://disclosure2dl.edinet-fsa.go.jp/searchdocument/pdf/S100WIMH.pdf",
     "submitted": "2025-08-12",
     "quote": "公開買付者は、当社及び本特別委員会より公開買付価格を当初予定日の前営業日の終値である1,784円以上とするよう再検討の要請を受け、また、公開買付価格が1,784円以上であれば、本取引に対して賛同及び応募推奨を出す準備がある旨が示されたとのことです。"
    }
   },
   {
    "date": "2025-08-08",
    "price": 1750,
    "proposer": "acquirer",
    "source": {
     "doc_id": "S100WIMH",
     "doc_url": "https://disclosure2dl.edinet-fsa.go.jp/searchdocument/pdf/S100WIMH.pdf",
     "submitted": "2025-08-12",
     "quote": "公開買付者は、2025年８月８日開催の取締役会において、本公開買付価格を1,750円（本公開買付価格の詳細については、下記「(3）算定に関する事項」の「② 公開買付者における独立した第三者算定機関からの株式価値算定書の取得」をご参照ください。）として本公開買付けを実施することを決議したとのことです。"
    }
   }
  ],
  "initial_offer": 1750,
  "offer_raise_pct": 0,
  "offer_rounds": 1,
  "negotiation_excluded": null,
  "category": "delisting",
  "category_basis": "filing"
 },
 "valuations": [
  {
   "valuator": "みずほ証券株式会社",
   "valuator_as_written": "みずほ証券株式会社",
   "valuator_en": "Mizuho Securities Co., Ltd.",
   "side": "acquirer",
   "method": "comparable",
   "method_label": "類似企業比較法",
   "method_en": "Comparable companies method",
   "metrics": {
    "per_share_value": {
     "low": 1093,
     "high": 1574,
     "unit": "yen_per_share",
     "source": {
      "doc_id": "S100WIMH",
      "doc_url": "https://disclosure2dl.edinet-fsa.go.jp/searchdocument/pdf/S100WIMH.pdf",
      "submitted": "2025-08-12",
      "quote": "類似企業比較法：1,093円から1,574円"
     }
    }
   }
  },
  {
   "valuator": "みずほ証券株式会社",
   "valuator_as_written": "みずほ証券株式会社",
   "valuator_en": "Mizuho Securities Co., Ltd.",
   "side": "acquirer",
   "method": "dcf",
   "method_label": "ＤＣＦ法",
   "method_en": "DCF method",
   "metrics": {
    "per_share_value": {
     "low": 1166,
     "high": 2164,
     "unit": "yen_per_share",
     "source": {
      "doc_id": "S100WIMH",
      "doc_url": "https://disclosure2dl.edinet-fsa.go.jp/searchdocument/pdf/S100WIMH.pdf",
      "submitted": "2025-08-12",
      "quote": "ＤＣＦ法 ：1,166円から2,164円"
     }
    }
   }
  },
  {
   "valuator": "みずほ証券株式会社",
   "valuator_as_written": "みずほ証券株式会社",
   "valuator_en": "Mizuho Securities Co., Ltd.",
   "side": "acquirer",
   "method": "market_price",
   "method_label": "市場株価基準法",
   "method_en": "Market price method",
   "metrics": {
    "per_share_value": {
     "low": 1415,
     "high": 1700,
     "unit": "yen_per_share",
     "source": {
      "doc_id": "S100WIMH",
      "doc_url": "https://disclosure2dl.edinet-fsa.go.jp/searchdocument/pdf/S100WIMH.pdf",
      "submitted": "2025-08-12",
      "quote": "市場株価基準法：1,415円から1,700円"
     }
    }
   }
  },
  {
   "valuator": "PwCアドバイザリー合同会社",
   "valuator_as_written": "PwCアドバイザリー合同会社",
   "valuator_en": "PwC Advisory LLC",
   "side": "target",
   "method": "dcf",
   "method_label": "ＤＣＦ方式",
   "method_en": "DCF method",
   "metrics": {
    "per_share_value": {
     "low": 1336,
     "high": 1854,
     "unit": "yen_per_share",
     "source": {
      "doc_id": "S100WIMH",
      "doc_url": "https://disclosure2dl.edinet-fsa.go.jp/searchdocument/pdf/S100WIMH.pdf",
      "submitted": "2025-08-12",
      "quote": "ＤＣＦ方式 ：1,336円～1,854円"
     }
    }
   }
  },
  {
   "valuator": "PwCアドバイザリー合同会社",
   "valuator_as_written": "PwCアドバイザリー合同会社",
   "valuator_en": "PwC Advisory LLC",
   "side": "target",
   "method": "market_price",
   "method_label": "市場株価基準方式",
   "method_en": "Market price method",
   "metrics": {
    "per_share_value": {
     "low": 1415,
     "high": 1750,
     "unit": "yen_per_share",
     "source": {
      "doc_id": "S100WIMH",
      "doc_url": "https://disclosure2dl.edinet-fsa.go.jp/searchdocument/pdf/S100WIMH.pdf",
      "submitted": "2025-08-12",
      "quote": "市場株価基準方式：1,415円～1,750円"
     }
    }
   }
  }
 ],
 "timeline": [
  {
   "date": "2025-08-12",
   "doc_id": "S100WIII",
   "doc_type_code": "240",
   "doc_type": "公開買付届出書",
   "filer": "大成建設株式会社",
   "filer_en": "taisei corporation",
   "description": "公開買付届出書",
   "doc_url": "https://disclosure2dl.edinet-fsa.go.jp/searchdocument/pdf/S100WIII.pdf"
  },
  {
   "date": "2025-08-12",
   "doc_id": "S100WIMH",
   "doc_type_code": "290",
   "doc_type": "意見表明報告書",
   "filer": "東洋建設株式会社",
   "filer_en": "TOYO CONSTRUCTION CO.,LTD.",
   "description": "意見表明報告書",
   "doc_url": "https://disclosure2dl.edinet-fsa.go.jp/searchdocument/pdf/S100WIMH.pdf"
  },
  {
   "date": "2025-09-25",
   "doc_id": "S100WPOE",
   "doc_type_code": "270",
   "doc_type": "公開買付報告書",
   "filer": "大成建設株式会社",
   "filer_en": "taisei corporation",
   "description": "公開買付報告書",
   "doc_url": "https://disclosure2dl.edinet-fsa.go.jp/searchdocument/pdf/S100WPOE.pdf"
  }
 ],
 "related": [],
 "flags": [],
 "unverified_count": 0
}