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Ltd.","held_sec_code":"9017","match_status":"matched","shares":2773,"book_value_yen":5542000,"prior_shares":2645,"prior_book_value_yen":5491000,"purpose_ja":"保有による関係の強化により、建築事業において中長期的な工事受注により、企業価値の向上に資すると判断しております。地元企業として持株会に加入しております。株式数の増加は持株会への拠出によるものであります。","reciprocal":"無","pct_outstanding":0.07219474095287685,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.017420047576658267,"pct_of_holder_assets":0.009836906853331471,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":31813920000,"holder_total_assets_yen":56338848000,"implausible":false,"reciprocal_held_both_ways":false,"corporate_actions":[],"note_refs":[],"share_ratio":null,"reclassified_to_pure":false},{"holder_table":"reporting","held_name_raw":"第一建設工業㈱","held_name_en":"DAIICHI KENSETSU CORPORATION","held_sec_code":"1799","match_status":"matched","shares":1084,"book_value_yen":4113000,"prior_shares":1084,"prior_book_value_yen":2834000,"purpose_ja":"保有による関係の強化により、建設業のDX化推進に向けて中長期的に情報交換を行うことで、企業価値の向上に資すると判断しております。また、建設工事共同企業体として共同で施工を行った実績があります。","reciprocal":"有","pct_outstanding":0.006123777934864357,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.012928303082424297,"pct_of_holder_assets":0.007300468763578552,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":31813920000,"holder_total_assets_yen":56338848000,"implausible":false,"reciprocal_held_both_ways":true,"corporate_actions":[],"note_refs":[],"share_ratio":null,"reclassified_to_pure":false},{"holder_table":"reporting","held_name_raw":"㈱キタック","held_name_en":"KITAC CORPORATION","held_sec_code":"4707","match_status":"matched","shares":3000,"book_value_yen":936000,"prior_shares":3000,"prior_book_value_yen":990000,"purpose_ja":"保有による関係の強化により、建設業のDX化推進に向けて中長期的に情報交換を行うことで、企業価値の向上に資すると判断しております。","reciprocal":"有","pct_outstanding":0.053566416285333304,"pct_unavailable":null,"pct_basis_period_end":"2025-10-20","pct_share_classes":1,"pct_of_holder_equity":0.0029421083601140633,"pct_of_holder_assets":0.0016613758236590141,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":31813920000,"holder_total_assets_yen":56338848000,"implausible":false,"reciprocal_held_both_ways":true,"corporate_actions":[],"note_refs":[],"share_ratio":null,"reclassified_to_pure":false}],"holders":[{"holder_name":"株式会社第四北越フィナンシャルグループ","holder_name_en":"Daishi Hokuetsu Financial Group, Inc.","holder_sec_code":"7327","doc_id":"S100YAX4","period_end":"2026-03-31","holder_table":"largest","shares":323660,"book_value_yen":908000000,"prior_shares":323660,"prior_book_value_yen":575000000,"purpose_ja":"取引関係の維持・強化のために保有しております。新潟県内に本社を置く企業として、地域の産業振興や雇用創出に貢献しており、資本コスト等を踏まえた中長期的な経済合理性の観点からも保有の妥当性を確認しております。","reciprocal":"有","pct_outstanding":4.922414857705315,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.15945182289608764,"pct_of_holder_assets":0.008376164314514269,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":569451000000,"holder_total_assets_yen":10840284000000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"株式会社大光銀行","holder_name_en":"THE TAIKO BANK,LTD.","holder_sec_code":"8537","doc_id":"S100YC1U","period_end":"2026-03-31","holder_table":"reporting","shares":149452,"book_value_yen":419000000,"prior_shares":149452,"prior_book_value_yen":265000000,"purpose_ja":"（保有目的）取引関係の維持・強化（定量的な保有効果）秘密保持の観点から記載は困難であります。なお、2025年10月開催の取締役会において、取引状況や連携状況等を踏まえ、保有に妥当性ありと判断しております。","reciprocal":"有","pct_outstanding":2.272955401698618,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.5149697654982548,"pct_of_holder_assets":0.024634799388069232,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":81364000000,"holder_total_assets_yen":1700846000000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"太平電業株式会社","holder_name_en":"TAIHEI DENGYO KAISHA,LTD.","holder_sec_code":"1968","doc_id":"S100YPZ0","period_end":"2026-03-31","holder_table":"reporting","shares":66600,"book_value_yen":186000000,"prior_shares":66600,"prior_book_value_yen":118000000,"purpose_ja":"当社の社員寮をはじめ社有施設の建設およびメンテナンスを手がけております。最近では環境に配慮した施設の建設を実現させたことから、今後の事業促進およびＥＳＧへの取り組みにおける協業関係の構築を目的に保有しております。","reciprocal":"有","pct_outstanding":1.0128926327725822,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.14538178350620218,"pct_of_holder_assets":0.10606449405525618,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":127939000000,"holder_total_assets_yen":175365000000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"前澤工業株式会社","holder_name_en":"Maezawa Industries, Inc.","holder_sec_code":"6489","doc_id":"S100XIGE","period_end":"2025-05-31","holder_table":"reporting","shares":21400,"book_value_yen":41000000,"prior_shares":21400,"prior_book_value_yen":35000000,"purpose_ja":"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":0.3261634279959178,"pct_unavailable":null,"pct_basis_period_end":"2025-03-31","pct_share_classes":1,"pct_of_holder_equity":0.13703666566395936,"pct_of_holder_assets":0.09610651414641007,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":29919000000,"holder_total_assets_yen":42661000000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"株式会社キタック","holder_name_en":"KITAC CORPORATION","holder_sec_code":"4707","doc_id":"S100XFRF","period_end":"2025-10-20","holder_table":"reporting","shares":6000,"book_value_yen":14700000,"prior_shares":6000,"prior_book_value_yen":9144000,"purpose_ja":"長期的・安定的な取引関係の維持のため（注）１","reciprocal":"有","pct_outstanding":0.09125158853807047,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.4161330538730947,"pct_of_holder_assets":0.23133762404299796,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":3532524000,"holder_total_assets_yen":6354349000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"株式会社ブルボン","holder_name_en":"BOURBON CORPORATION","holder_sec_code":"2208","doc_id":"S100YEFS","period_end":"2026-03-31","holder_table":"reporting","shares":2800,"book_value_yen":7000000,"prior_shares":2800,"prior_book_value_yen":4000000,"purpose_ja":"事業活動の円滑化、安定的・長期的な取引関係","reciprocal":"有","pct_outstanding":0.04258407465109955,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.010415581710238517,"pct_of_holder_assets":0.006902672320283996,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":67207000000,"holder_total_assets_yen":101410000000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"株式会社ユアテック","holder_name_en":"YURTEC CORPORATION","holder_sec_code":"1934","doc_id":"S100YHQP","period_end":"2026-03-31","holder_table":"reporting","shares":924,"book_value_yen":2000000,"prior_shares":924,"prior_book_value_yen":1000000,"purpose_ja":"幅広い顧客基盤を持つ取引先として設備工事を請け負っており、関係強化により中長期的な工事受注獲得による収益向上をはかるため継続して保有している。","reciprocal":"無","pct_outstanding":0.014052744634862852,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.0012873657921161719,"pct_of_holder_assets":0.0008735608085678844,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":155356000000,"holder_total_assets_yen":228948000000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"株式会社東京エネシス","holder_name_en":"TOKYO ENERGY & SYSTEMS INC.","holder_sec_code":"1945","doc_id":"S100YJBK","period_end":"2026-03-31","holder_table":"reporting","shares":null,"book_value_yen":null,"prior_shares":8140,"prior_book_value_yen":14000000,"purpose_ja":"－","reciprocal":"有","pct_outstanding":null,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":null,"pct_of_holder_assets":null,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":72452000000,"holder_total_assets_yen":119329000000,"implausible":false,"reciprocal_held_both_ways":true}],"reclassified":[{"holder_table":"reporting","direction":"to_pure","held_name_raw":"㈱日立製作所","held_name_en":"Hitachi, Ltd.","held_sec_code":"6501","match_status":"matched","shares":10000,"book_value_yen":44640000,"fy_of_change_ja":"2023年３月期","reason_ja":"営業面での直接的および間接的な取引関係が無かったため保有目的を変更しております。なお、売却については、株価の値上がり益と当社の業績を勘案し、売却時期を見計らっております。","implausible":false}],"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１）保有先企業は当社の株式を保有していませんが、同社子会社が当社の株式を保有しています。"},{"holder_table":"reporting","note_no":"2","text_ja":"（注２）㈱第四北越フィナンシャルグループは、2025年10月１日付で普通株式１株につき３株の割合で株式分割を行っております。"},{"holder_table":"reporting","note_no":"3","text_ja":"（注３）㈱横浜フィナンシャルグループは、2025年10月１日付で㈱コンコルディア・フィナンシャルグループから商号変更を行っております。"},{"holder_table":"reporting","note_no":"4","text_ja":"（注４）太平電業㈱は、2025年10月１日付で普通株式１株につき３株の割合で株式分割を行っております。"}],"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":1,"acquisition_cost_yen":271000,"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":0,"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":3603685000,"listed_yen":3471718000,"unlisted_yen":131967000,"listed_issues":23,"unlisted_issues":28,"equity_yen":31813920000,"equity_basis":"jgaap_consolidated","total_assets_yen":56338848000,"assets_basis":"jgaap_consolidated","pct_of_equity":11.327384365082958,"pct_of_assets":6.396447793891704,"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":3471718000,"issue_count":23,"holder_table_label":"The filer itself","entity_scope":"parent_only","share_scope":"listed"},{"holder_table":"reporting","share_class":"unlisted","book_value_yen":131967000,"issue_count":28,"holder_table_label":"The filer itself","entity_scope":"parent_only","share_scope":"unlisted"}],"scale_history":[{"year":"2022","period_end":"2022-03-31","policy_total_yen":1111856000,"equity_yen":24176627000,"equity_basis":"jgaap_consolidated","pct_of_equity":4.5988880086539785,"pct_of_assets":2.5482233511845136},{"year":"2023","period_end":"2023-03-31","policy_total_yen":1370292000,"equity_yen":25102237000,"equity_basis":"jgaap_consolidated","pct_of_equity":5.458844165960189,"pct_of_assets":2.9169867306450477},{"year":"2024","period_end":"2024-03-31","policy_total_yen":2024391000,"equity_yen":27295855000,"equity_basis":"jgaap_consolidated","pct_of_equity":7.41647770329964,"pct_of_assets":4.024612031460582},{"year":"2025","period_end":"2025-03-31","policy_total_yen":2357438000,"equity_yen":29062224000,"equity_basis":"jgaap_consolidated","pct_of_equity":8.111691658559923,"pct_of_assets":4.6317147656289706},{"year":"2026","period_end":"2026-03-31","policy_total_yen":3603685000,"equity_yen":31813920000,"equity_basis":"jgaap_consolidated","pct_of_equity":11.327384365082958,"pct_of_assets":6.396447793891704}],"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":"2022","period_end":"2022-03-31","named_holdings":24,"book_value_yen":952562000},{"year":"2023","period_end":"2023-03-31","named_holdings":23,"book_value_yen":1240569000},{"year":"2024","period_end":"2024-03-31","named_holdings":23,"book_value_yen":1894667000},{"year":"2025","period_end":"2025-03-31","named_holdings":23,"book_value_yen":2225464000},{"year":"2026","period_end":"2026-03-31","named_holdings":23,"book_value_yen":3471713000}],"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."}}