{"year":2003,"count":46,"generatedAt":"2026-07-16T20:20:13.770Z","updatedAt":"2026-07-16T20:20:13.770Z","detailCount":46,"coverage":{"status":"source_limited","statusLabel":"確認ソース限定","coverageLabel":"確認可能な公開ソースで照合できたTOB関連明細を掲載。国内企業TOB件数52件との報道引用と金融庁の公開買付届出書提出件数は、参考統計としてカバレッジ欄に分離する。","expectedCount":52,"expectedNonSelfTenderCount":34,"expectedJapaneseNonSelfTenderCount":null,"expectedCountsAreReferenceOnly":true,"countBasis":"総件数は日経金融新聞の報道引用、自己株式TOBを除く件数は金融庁資料の公開買付届出書提出件数を参照用の外部統計とする。サイト明細は確認済みの案件単位で表示。","sourceSystemCount":46,"verifiedDetailCount":46,"verifiedNonSelfTenderDetailCount":32,"verifiedJapaneseNonSelfTenderDetailCount":31,"verifiedForeignNonSelfTenderDetailCount":1,"referenceDetailDelta":6,"referenceNonSelfTenderDelta":2,"referenceJapaneseNonSelfTenderDelta":null,"sourceLimitations":["金融庁資料の件数目安は自己株式TOBを除く公開買付届出書提出件数として扱い、外国対象TOBは非自己株TOBの総数に含めた上で国内対象とは内訳を分けて表示する。","M&A Online TOBプレミアムはページ上で2006年以降の全TOB情報を対象とするため、2000-2005年の明細は別ソースで補完する。","楽天証券の公開買付銘柄アーカイブは2003年8月以降の現行ページスナップショットと2004年・2005年の年次ページを確認できるが、2000年-2003年前半の同形式一覧は確認できない。","日本政策投資銀行設備投資研究所の「日本のM&A」は2000年代前半の株式公開買付表を含むが、イベントスタディ対象の上場企業案件に限定されるため、金融庁の公開買付届出書提出件数とは母集団が一致しない。","野村資本市場研究所の自社株公開買付資料は2001年9月末までの自己株式TOBの件数・特徴を確認できるが、個別銘柄名簿は本文中に掲載されていないため、自己株式TOBの明細は会社開示で確認できたものから追加する。","関西大学リポジトリ収録の自己株買い研究は2002年・2003年の自己株式公開買付サンプル件数を確認できるが、個別銘柄名簿は本文中に掲載されていないため、自己株式TOBの明細は会社開示で確認できたものから追加する。","2000年代前半はオンラインで一括取得できる一次開示の永続URLが限られるため、会社リリース、研究機関資料、報道アーカイブで確認済みの案件から段階的に追加する。"],"notes":["2003年は国内企業に対するTOBが52件、買付金額1兆738億円と報じられたとする二次資料を件数目安にする。","会社リリース、公式アーカイブ、報道アーカイブで価格・期間まで確認できる案件を先に補完。","自己株式TOBは会社リリース・有価証券報告書の取得注記で期間、価格、取得株数を確認できるものから追加。","M&Aカレンダー系で出るAIG/GEエジソン生命、住友金属鉱山/キンコーズ、りそな系リース売却などは上場株券等の公開買付けとして確認できないため実績一覧から除外。","あおぞら銀行、シートゥーネットワーク、キトー、万有製薬、三菱ウェルファーマなど沿革・年表で確認できる2003年公開買付けは現行明細に収録済み。","野村資本市場研究所の市場記録で確認できるみずほインベスターズ証券とキトーは現行明細に収録済み。ワンビシ関連のMBO記載は事業譲渡であり公開買付実績から除外。","MSD、マックスバリュ北海道・中部、ドリーム・トレイン・インターネット、日研化学、東芝タンガロイなどの沿革候補は現行明細に収録済み。後年TOB・事業譲渡・私募取得の沿革言及は除外済み。","内閣府の対日直接投資調査でTOB表記がある2003年外資系候補（あおぞら銀行、シートゥーネットワーク、日本コンラックス、丸宏大華証券、旭テック、キトー）は現行明細に収録済み。日本テレコムのリップルウッド案件、住友スリーエム、マツヤデンキなどTOB表記のない買収・営業譲渡・未上場案件はTOB実績から除外。","KDDIの2003年9月の自己株式取得は同社IRニュースで「自己株式の市場買付の結果」として確認できるため、自己株式TOBには追加しない。","アールビバンの2003年3月の村上ファンド関連自己株式取得はJASDAQ売買システム稼働時間外取引として確認できるため、自己株式TOBには追加しない。","楽天証券2004年11月時点アーカイブに残る2003年8月以降の公開買付銘柄表を再変換・照合し、同表に掲載される自己株式TOB（サンドラッグ、NTTドコモ、ユニ・チャーム、ビスケーホールディングス、杏林製薬、双葉電子工業、コマニー、中電工）は現行明細に収録済み。","マネックスメール本文で確認できる2003年TOB言及（万有製薬、日本コンラックス、フジテレビジョン、NTTドコモ、三菱ウェルファーマ、松下電工など）は現行明細に収録済み。","関西大学リポジトリ収録の自己株買い研究では、eol適時開示検索に基づく2003年の自己株式公開買付サンプルは18件とされる。本文に個別銘柄名簿がないため、現行明細は会社開示・報道で公開買付条件を確認できた13件を収録。","レコフデータと公開買付届出書等を手作業で補完した学術データベースでは2003年のTOB全サンプルは27件で、金融庁の届出書提出件数34件および報道引用の国内企業TOB52件とは母集団が一致しない。","DBJの株式公開買付表、EDINET DB沿革抽出、会社沿革・報道で個別案件を照合。"],"sources":[{"title":"TOB | いま聞きたいQ&A","url":"https://manabow.com/qa/tob.html","source":"man@bow / 日経・野村ホールディングス","kind":"reference","confidence":"medium"},{"title":"金融経済の情報","url":"https://dl.ndl.go.jp/view/prepareDownload?itemId=info%3Andljp%2Fpid%2F8794053","source":"国立国会図書館デジタルコレクション","kind":"reference","confidence":"high"},{"title":"平成17年度 対日直接投資促進策等に関する調査研究","url":"https://www.cao.go.jp/invest-japan/documents/archive/files/h17.pdf","source":"内閣府","kind":"reference","confidence":"high"},{"title":"自己株式の公開買付けに関するお知らせ","url":"https://www.komatsuwall.co.jp/ir/library/press/pdf/h15062601.pdf","source":"小松ウオール工業","kind":"official","confidence":"high"},{"title":"有価証券報告書","url":"https://www.unicharm.co.jp/content/dam/sites/www_unicharm_co_jp/pdf/ir/library/securities/yuho_200403_all.pdf","source":"ユニ・チャーム","kind":"official","confidence":"high"},{"title":"平成16年3月期 中間決算短信（連結）","url":"https://www.segasammy.co.jp/cms/wp-content/uploads/2023/01/sammy_kessanrenketu_chukan_2004.pdf","source":"サミー","kind":"official","confidence":"high"},{"title":"自己株式の公開買付け結果に関するお知らせ","url":"https://www.kyorin-pharm.co.jp/news/docs/031205.pdf","source":"杏林製薬","kind":"official","confidence":"high"},{"title":"Merck announces tender offer for full ownership of Banyu Pharmaceutical","url":"https://www.sec.gov/Archives/edgar/data/64978/000095012303000210/y82447exv99.htm","source":"Merck / SEC","kind":"official","confidence":"high"},{"title":"事業再構築におけるMBOの役割と意義 - 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