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Co.,Ltd.","holder_sec_code":"5918","doc_id":"S100YJYC","period_end":"2026-03-31","holder_table":"reporting","shares":30600,"book_value_yen":218000000,"prior_shares":30600,"prior_book_value_yen":147000000,"purpose_ja":"当社の主要設備（工場など）の施工実績が多数あり、丸定産業㈱鉄筋建材事業部の営業取引先でもある。更に地元（名古屋市）企業である同社とは、今後も取引関係の維持及び安定株主を目的として保有。（注）１","reciprocal":"有","pct_outstanding":1.4458616934064454,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.43361511685728493,"pct_of_holder_assets":0.2988593989910068,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":50275000000,"holder_total_assets_yen":72944000000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"株式会社あいちフィナンシャルグループ","holder_name_en":"Aichi Financial Group, Inc.","holder_sec_code":"7389","doc_id":"S100YE5H","period_end":"2026-03-31","holder_table":"largest","shares":25500,"book_value_yen":182000000,"prior_shares":null,"prior_book_value_yen":null,"purpose_ja":"地域経済との関連性が深く、地域の成長・活性化に重要な役割を担う同社との関係維持・向上を通じた、当行グループの企業価値向上のため。","reciprocal":"有","pct_outstanding":1.2048847445053712,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.04222728021512711,"pct_of_holder_assets":0.002538943132835412,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":431001000000,"holder_total_assets_yen":7168337000000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"日東工業株式会社","holder_name_en":"NITTO KOGYO CORPORATION","holder_sec_code":"6651","doc_id":"S100YIVN","period_end":"2026-03-31","holder_table":"reporting","shares":24500,"book_value_yen":175000000,"prior_shares":24500,"prior_book_value_yen":118000000,"purpose_ja":"電気・情報・インフラ関連 製造・工事・サービス事業におけるエネルギーマネジメント事業に共同出資しており、同事業における連携強化を目的として保有。","reciprocal":"有","pct_outstanding":1.1576343623679057,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.13973394656573884,"pct_of_holder_assets":0.09444195597385846,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":125238000000,"holder_total_assets_yen":185299000000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"株式会社三十三フィナンシャルグループ","holder_name_en":"San ju San Financial Group,Inc.","holder_sec_code":"7322","doc_id":"S100YD2K","period_end":"2026-03-31","holder_table":"largest","shares":19000,"book_value_yen":136000000,"prior_shares":19000,"prior_book_value_yen":91000000,"purpose_ja":"地域経済の発展に重要な役割を担う地元企業との関係維持・強化を通じて当社グループの中長期的な企業価値の向上に資するため","reciprocal":"有","pct_outstanding":0.8977572606118452,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.058830145258549835,"pct_of_holder_assets":0.002966786821532939,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":231174000000,"holder_total_assets_yen":4584084000000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"中部鋼鈑株式会社","holder_name_en":"Chubu Steel Plate Co.,Ltd.","holder_sec_code":"5461","doc_id":"S100Y9WS","period_end":"2026-03-31","holder_table":"reporting","shares":19000,"book_value_yen":135000000,"prior_shares":19000,"prior_book_value_yen":91000000,"purpose_ja":"鉄鋼製品の販売拡大に向けた各種情報収集や取引関係の維持・強化を図るため保有しております。 ","reciprocal":"有","pct_outstanding":0.8977572606118452,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.178250765818105,"pct_of_holder_assets":0.15961408860355408,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":75736000000,"holder_total_assets_yen":84579000000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"知多鋼業株式会社","holder_name_en":"CHITA KOGYO CO.,LTD.","holder_sec_code":"5993","doc_id":"S100THI8","period_end":"2024-02-29","holder_table":"reporting","shares":32200,"book_value_yen":134757000,"prior_shares":32200,"prior_book_value_yen":106582000,"purpose_ja":"（保有目的等）地域貢献及び事業戦略や有益な情報収集など中長期観点から当社グループの企業価値の向上を図る（定量的な保有効果）（注）１","reciprocal":"有","pct_outstanding":1.535171884423488,"pct_unavailable":null,"pct_basis_period_end":"2024-03-31","pct_share_classes":1,"pct_of_holder_equity":0.5688632385350356,"pct_of_holder_assets":0.4565417063148448,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":23688822000,"holder_total_assets_yen":29516909000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"丸藤シートパイル株式会社","holder_name_en":"MARUFUJI SHEET PILING CO.,LTD.","holder_sec_code":"8046","doc_id":"S100YF98","period_end":"2026-03-31","holder_table":"reporting","shares":18200,"book_value_yen":131000000,"prior_shares":18200,"prior_book_value_yen":87000000,"purpose_ja":"（保有目的）建築・土木事業等における取引関係にあり、同社との良好な関係の維持・強化を図るため。（定量的な保有効果）保有の合理性を検証した方法などについては欄外に注記しております。","reciprocal":"有","pct_outstanding":0.8599569549018727,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.40020774142302873,"pct_of_holder_assets":0.2850614731802851,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":32733000000,"holder_total_assets_yen":45955000000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"ＡＭＧホールディングス株式会社","holder_name_en":"AMG HOLDINGS CO., LTD.","holder_sec_code":"8891","doc_id":"S100YF0Z","period_end":"2026-03-31","holder_table":"largest","shares":17000,"book_value_yen":121550000,"prior_shares":17000,"prior_book_value_yen":82025000,"purpose_ja":"（保有目的）分譲マンション事業における取引先であり、取引関係の維持強化を目的として保有しております。（定量的な保有効果）定量的な保有効果を示すことは困難でありますが、規模の大きい分譲マンション建築の発注先の１社であることを踏まえ、保有効果があると判断しております。","reciprocal":"無","pct_outstanding":0.8032564963369141,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":1.0141453037021018,"pct_of_holder_assets":0.3802194186675003,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":11985462000,"holder_total_assets_yen":31968383000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"美濃窯業株式会社","holder_name_en":"MINO CERAMIC CO.,LTD.","holder_sec_code":"5356","doc_id":"S100YG4G","period_end":"2026-03-31","holder_table":"reporting","shares":16900,"book_value_yen":120835000,"prior_shares":16900,"prior_book_value_yen":81542000,"purpose_ja":"同社は当社の事務所等の建設・維持管理等の取引先であり、事業活動上の関係を深め、安定的な事業運営を行う目的として保有しております。","reciprocal":"有","pct_outstanding":0.7985314581231676,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.7661634426636657,"pct_of_holder_assets":0.5422800255336321,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":15771439000,"holder_total_assets_yen":22282768000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"アジアパイルホールディングス株式会社","holder_name_en":"ASIA PILE HOLDINGS CORPORATION","holder_sec_code":"5288","doc_id":"S100YJPY","period_end":"2026-03-31","holder_table":"largest","shares":11266,"book_value_yen":80000000,"prior_shares":11006,"prior_book_value_yen":53000000,"purpose_ja":"中部地区における基礎建設受注等、協業ビジネスにおいて関係強化配当再投資による増加","reciprocal":"無","pct_outstanding":0.5323228051606868,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.14337688406186713,"pct_of_holder_assets":0.07567874373285403,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":55797000000,"holder_total_assets_yen":105710000000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"東海染工株式会社","holder_name_en":"Tokai Senko K.K.","holder_sec_code":"3577","doc_id":"S100YJEV","period_end":"2026-03-31","holder_table":"reporting","shares":10000,"book_value_yen":71500000,"prior_shares":10000,"prior_book_value_yen":48250000,"purpose_ja":"地域経済における協力関係維持のため保有しております。","reciprocal":"有","pct_outstanding":0.47250382137465535,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.7685231822062054,"pct_of_holder_assets":0.4793445409226826,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":9303558000,"holder_total_assets_yen":14916202000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"三谷セキサン株式会社","holder_name_en":"MITANI SEKISAN Co., Ltd.","holder_sec_code":"5273","doc_id":"S100YJGQ","period_end":"2026-03-31","holder_table":"reporting","shares":7195,"book_value_yen":51000000,"prior_shares":6977,"prior_book_value_yen":33000000,"purpose_ja":"当社グループは同社と取引があり、主に建築工事に係る取引関係の維持・強化を目的として保有しています。当社は同社の取引先持株会に加入しており、毎期定額拠出を行っていることから株数が増加しております。","reciprocal":"無","pct_outstanding":0.33996649947906454,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.04917937937551831,"pct_of_holder_assets":0.036094695495240456,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":103702000000,"holder_total_assets_yen":141295000000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"菊水化学工業株式会社","holder_name_en":"KIKUSUI CHEMICAL INDUSTRIES CO.,LTD.","holder_sec_code":"7953","doc_id":"S100YKW4","period_end":"2026-03-31","holder_table":"reporting","shares":1800,"book_value_yen":12870000,"prior_shares":1800,"prior_book_value_yen":8685000,"purpose_ja":"同社は当社の重要顧客であり、取引関係の維持・強化を目的として保有しております。（注）１ ","reciprocal":"有","pct_outstanding":0.08505068784743797,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.12366837886994583,"pct_of_holder_assets":0.07557282084273736,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":10406864000,"holder_total_assets_yen":17029932000,"implausible":false,"reciprocal_held_both_ways":true}],"reclassified":[],"reclassified_note":"As filed, from the annual report's 保有目的を変更した投資株式 table. direction=to_pure means the filer moved the holding from a policy shareholding to 純投資目的 (pure investment); the shares are not necessarily sold, and the position leaves the named policy table in the year of the change. direction=to_policy is the reverse. fy_of_change_ja is the fiscal year the filer states the change took effect, verbatim — some filers list more than one. A filing repeats these rows for several years after the change, so this is a standing disclosure, not a one-year event.","implausible_note":"A row is flagged implausible when its two filed numbers are mutually impossible — book value ÷ shares of ¥1,000,000 or more, which no listed Japanese share reaches. It is a filer tagging error (a value entered at the wrong scale, or a share count in thousands), not an extraction error: the values match the filing's XBRL exactly. Flagged rows are still returned, exactly as filed, but are excluded from the yen aggregates here and counted in excluded_positions / excluded_yen so the exclusion is visible.","notes":[{"holder_table":"reporting","note_no":"1","text_ja":"（注）当社は特定投資株式における定量的な保有効果の記載が困難なため記載しておりません。保有の合理性を検証した方法としては、当社は、毎期、個別の政策保有株式の保有の適否について検証しており、2026年３月31日を基準とした検証の結果、現状保有する政策保有株式はいずれも保有方針に沿った目的で保有していることを確認しております。"}],"notes_note":"The filing's own numbered footnotes to the named policy table, verbatim. The XBRL numbers them (注)1, (注)2 … and gives no link back to a row, so a note is tied to a position only where it names that issuer.","flows":[{"holder_table":"reporting","share_class":"listed","issues_increased":null,"acquisition_cost_yen":null,"issues_decreased":null,"sale_proceeds_yen":null,"entity_scope":"parent_only","share_scope":"listed"},{"holder_table":"reporting","share_class":"unlisted","issues_increased":null,"acquisition_cost_yen":null,"issues_decreased":1,"sale_proceeds_yen":38000000,"entity_scope":"parent_only","share_scope":"unlisted"}],"flows_note":"The filer's own tally, as filed, of how many issues increased or decreased during the year and the yen involved — acquisition cost for increases, sale proceeds for decreases. Read against the reclassification table this separates what was actually sold from what merely changed category. Counts are as filed and are not corrected for filer tagging errors.","no_reduction_measure":"This product holds sale proceeds (売却価額), as filed, for one fiscal year. It does NOT hold a book-value-reduction measure. The two are different measures and must never be presented as equivalent.","scale":{"policy_total_yen":2928000000,"listed_yen":2651000000,"unlisted_yen":277000000,"listed_issues":19,"unlisted_issues":21,"equity_yen":22924000000,"equity_basis":"jgaap_consolidated","total_assets_yen":53271000000,"assets_basis":"jgaap_consolidated","pct_of_equity":12.772640027918339,"pct_of_assets":5.496423945486287,"equity_basis_label":"Consolidated net assets (Japanese GAAP)","assets_basis_label":"Consolidated net assets (Japanese GAAP)","equity_calc":"total policy shareholdings ÷ shareholders' equity × 100, both as filed in this annual securities report","assets_calc":"total policy shareholdings ÷ total assets × 100, both as filed in this annual securities report"},"scale_entities":[{"holder_table":"reporting","share_class":"listed","book_value_yen":2651000000,"issue_count":19,"holder_table_label":"The filer itself","entity_scope":"parent_only","share_scope":"listed"},{"holder_table":"reporting","share_class":"unlisted","book_value_yen":277000000,"issue_count":21,"holder_table_label":"The filer itself","entity_scope":"parent_only","share_scope":"unlisted"}],"scale_history":[{"year":"2020","period_end":"2020-03-31","policy_total_yen":1163000000,"equity_yen":13621000000,"equity_basis":"jgaap_consolidated","pct_of_equity":8.538286469422216,"pct_of_assets":2.6703710506980163},{"year":"2022","period_end":"2022-03-31","policy_total_yen":1351000000,"equity_yen":17059000000,"equity_basis":"jgaap_consolidated","pct_of_equity":7.919573245794009,"pct_of_assets":3.0358186148937127},{"year":"2023","period_end":"2023-03-31","policy_total_yen":1901000000,"equity_yen":17642000000,"equity_basis":"jgaap_consolidated","pct_of_equity":10.775422287722481,"pct_of_assets":4.23225059554289},{"year":"2024","period_end":"2024-03-31","policy_total_yen":2345000000,"equity_yen":19110000000,"equity_basis":"jgaap_consolidated","pct_of_equity":12.271062271062272,"pct_of_assets":4.706283741746443},{"year":"2025","period_end":"2025-03-31","policy_total_yen":2331000000,"equity_yen":19860000000,"equity_basis":"jgaap_consolidated","pct_of_equity":11.737160120845921,"pct_of_assets":4.39786427183367},{"year":"2026","period_end":"2026-03-31","policy_total_yen":2928000000,"equity_yen":22924000000,"equity_basis":"jgaap_consolidated","pct_of_equity":12.772640027918339,"pct_of_assets":5.496423945486287}],"scale_note":"The policy total is Official (as filed) — the filing's own total carrying amount for the whole policy bucket, listed and unlisted, summed across the entities the filing discloses. It is a floor: holdings at group companies the filing does not name are disclosed nowhere and are not included. The percentages are calculated, not filed, and carry their formula. equity_basis names which figure the denominator is, because filers report under Japanese, IFRS or US accounting standards and an adopter of the latter two stops tagging the Japanese consolidated figure — a parent-only denominator is a different measure and is labelled as one, never silently mixed with a group figure. Percentages are null where equity or total assets is missing or not positive; missing is never shown as zero.","scale_reference":"ISS's Japan proxy voting guidelines recommend a vote against the top executive at a company that allocates 20 percent or more of its net assets to cross-shareholdings, a policy effective from February 2022. ISS counts unilateral holdings, not only mutual ones.","ownership_calc":"shares held ÷ (issuer's issued shares − treasury shares) × 100, both as filed, the denominator taken from the issuer's own annual securities report nearest the holding's fiscal year end","ownership_note":"Derived, not filed. The denominator is the issuer's own reported issued shares less treasury shares, from its annual report nearest this holding's fiscal year end on either side — pct_basis_period_end gives that date, and it can fall after the holding's date where that report is the closer one. For a single-class listed stock this equals the stake's share of market capitalisation. It is null where the issuer files no annual report we hold; where the issuer's share count moves by half or more across the window, because a split or issue makes the share base indeterminate; and where the result would exceed 100%, which is a data fault rather than a stake. It is less exact where the issuer has more than one share class (pct_share_classes > 1), because treasury shares are reported across all classes.","holder_share_calc":"this position's book value ÷ the holder's shareholders' equity (or total assets) × 100, both as filed in the holder's own annual securities report","holder_share_note":"The mirror of pct_outstanding. That sizes a stake against the ISSUER — how much of the issuer this holder owns. pct_of_holder_equity and pct_of_holder_assets size the same position against the HOLDER: how much of its own capital is committed to this one name. Calculated, not filed. Null where the holder's filing gives no usable denominator, never zero. holder_equity_basis says which accounting figure the denominator is, and a parent_only basis is not comparable with a consolidated one. A position CAN legitimately exceed 100% of equity — a holder whose book equity is smaller than one long-held stake is a real and commercially interesting case, not an error — so no ceiling is imposed. Extreme values are worth checking against the filing: where the position's own two filed numbers are mutually impossible the row is marked `implausible`, but that test catches only scale errors visible per share, so it does not catch every bad figure. The book value and share count are returned alongside so the reader can check.","action_calc":"keyword match over the filing's own stated purpose and table footnotes: 株式分割、株式併合、株式交換、株式移転、会社分割、合併、持株会社、商号変更、公開買付、上場廃止","ratio_calc":"current shares ÷ prior shares where that ratio is an exact whole number (or its exact reciprocal) — the signature of a split or a consolidation rather than a trade","history":[{"year":"2020","period_end":"2020-03-31","named_holdings":22,"book_value_yen":875000000},{"year":"2022","period_end":"2022-03-31","named_holdings":21,"book_value_yen":1055000000},{"year":"2023","period_end":"2023-03-31","named_holdings":23,"book_value_yen":1601000000},{"year":"2024","period_end":"2024-03-31","named_holdings":22,"book_value_yen":1967000000},{"year":"2025","period_end":"2025-03-31","named_holdings":20,"book_value_yen":1955000000},{"year":"2026","period_end":"2026-03-31","named_holdings":19,"book_value_yen":2645000000}],"history_note":"One point per annual report filed. Each year's book value is as filed; book values are fair-valued at period end, so a change reflects both trading and market moves.","provenance":{"trust":"official","note":"Figures exactly as filed in each company's 有価証券報告書 (annual securities report), EDINET. Raw filings archived with SHA-256; doc_id links to the source filing."}}