{"entity":{"edinet_code":"E01058","sec_code":"4994","name_ja":"大成ラミックグループ株式会社","name_en":"Taisei Lamick Group Head Quarter & Innovation Co., Ltd.","industry":"化学","industry_en":"Chemicals"},"names_note":"English company names are as filed: each company's own annual report states its English name on the cover page. For a company that files no annual report, EDINET's filer registry is used instead. The as-filed Japanese name is always returned alongside.","filing":{"doc_id":"S100YG2P","filer_name":"大成ラミックグループ株式会社","filer_name_en":"Taisei Lamick Group Head Quarter & Innovation Co., Ltd.","period_end":"2026-03-31","filed_date":"2026-06-22","sha256":"433c25fe63423da1af50a1c28df335dd55d5358c1d2872b4950a4e4eb82a8b30","status":"clean"},"basis":{"measurement":"carrying_amount","entity_scope":"parent_only","share_scope":"both","trust_included":"unknown","as_of":"2026-03-31","period_type":"annual","labels":{"measurement":"Balance-sheet carrying amount. Under Japanese GAAP listed equities are carried at market with the valuation difference in other comprehensive income, so carrying amount and acquisition cost diverge enormously on positions bought decades ago.","entity_scope":"The reporting company itself (提出会社) — the holding company, excluding the group holders it names separately.","share_scope":"Listed and unlisted shares together.","trust_included":"The filing does not state whether retirement-benefit-trust shares are included. Never guessed — shares contributed to such a trust leave the holder's balance sheet while the settlor normally keeps the right to instruct the vote.","period_type":"From an annual securities report (有価証券報告書). The policy shareholding table appears only in the annual report."},"not_comparable":"Figures are balance-sheet CARRYING AMOUNT at fiscal year end, from the annual securities report. They are NOT comparable with the acquisition-cost or book-value-reduction figures quoted in press coverage and IR presentations, and NOT comparable with interim (half-year) figures, which this product does not hold. Always state the basis with the number, and use check_claim before setting one of our figures against a published one."},"basis_note":"The basis every yen figure on this response is on. entity_scope is read from the filing's own disclosing entities, not assumed: scale_entities and flows each carry their own entity_scope and share_scope, and a figure quoted for one entity is not the group figure.","holdings":[{"holder_table":"reporting","held_name_raw":"理研ビタミン㈱","held_name_en":"ＲＩＫＥＮ　ＶＩＴＡＭＩＮ　ＣＯ．，ＬＴＤ．","held_sec_code":"4526","match_status":"matched","shares":98272,"book_value_yen":282237000,"prior_shares":94745,"prior_book_value_yen":229189000,"purpose_ja":"(保有目的)営業関係取引の維持・強化による将来的な企業価値向上のため(定量的な保有効果)(注)２ (株式数が増加した理由)取引先持株会を通じた株式の取得","reciprocal":"無","pct_outstanding":0.3345338680138073,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":1.086850163150559,"pct_of_holder_assets":0.8026111757969209,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":25968345000,"holder_total_assets_yen":35164848000,"implausible":false,"reciprocal_held_both_ways":false,"corporate_actions":[],"note_refs":[],"share_ratio":null,"reclassified_to_pure":false},{"holder_table":"reporting","held_name_raw":"ブルドックソース㈱","held_name_en":"BULL-DOG SAUCE CO.,LTD.","held_sec_code":"2804","match_status":"matched","shares":53293,"book_value_yen":99126000,"prior_shares":52648,"prior_book_value_yen":89239000,"purpose_ja":"(保有目的)営業関係取引の維持・強化による将来的な企業価値向上のため(定量的な保有効果)(注)２ (株式数が増加した理由)取引先持株会を通じた株式の取得 ","reciprocal":"無","pct_outstanding":0.41742512775043317,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.381718588535388,"pct_of_holder_assets":0.2818894596103472,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":25968345000,"holder_total_assets_yen":35164848000,"implausible":false,"reciprocal_held_both_ways":false,"corporate_actions":[],"note_refs":[],"share_ratio":null,"reclassified_to_pure":false},{"holder_table":"reporting","held_name_raw":"㈱武蔵野銀行","held_name_en":"The Musashino Bank, Ltd.","held_sec_code":"8336","match_status":"matched","shares":15664,"book_value_yen":97884000,"prior_shares":15664,"prior_book_value_yen":51064000,"purpose_ja":"(保有目的)資金調達や金融取引の安定的な協力関係の維持・強化を図るため(定量的な保有効果)(注)２","reciprocal":"有","pct_outstanding":0.04738086996165368,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.37693584246512435,"pct_of_holder_assets":0.278357523399504,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":25968345000,"holder_total_assets_yen":35164848000,"implausible":false,"reciprocal_held_both_ways":true,"corporate_actions":[],"note_refs":[],"share_ratio":null,"reclassified_to_pure":false},{"holder_table":"reporting","held_name_raw":"アリアケジャパン㈱","held_name_en":"ARIAKE JAPAN Co.,Ltd.","held_sec_code":"2815","match_status":"matched","shares":10000,"book_value_yen":56000000,"prior_shares":10000,"prior_book_value_yen":61800000,"purpose_ja":"(保有目的)営業関係取引の維持・強化による将来的な企業価値向上のため (定量的な保有効果)(注)２","reciprocal":"無","pct_outstanding":0.03139758533102301,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.21564716580898782,"pct_of_holder_assets":0.15924994187377123,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":25968345000,"holder_total_assets_yen":35164848000,"implausible":false,"reciprocal_held_both_ways":false,"corporate_actions":[],"note_refs":[],"share_ratio":null,"reclassified_to_pure":false},{"holder_table":"reporting","held_name_raw":"ヱスビー食品㈱","held_name_en":"Ｓ＆Ｂ　ＦＯＯＤＳ　ＩＮＣ．","held_sec_code":"2805","match_status":"matched","shares":8800,"book_value_yen":41316000,"prior_shares":4400,"prior_book_value_yen":23469000,"purpose_ja":"(保有目的)営業関係取引の維持・強化による将来的な企業価値向上のため(定量的な保有効果)(注)２(株式数が増加した理由)株式分割によるもの(注)３","reciprocal":"無","pct_outstanding":0.03639993401684688,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.15910139826007394,"pct_of_holder_assets":0.11749233211529878,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":25968345000,"holder_total_assets_yen":35164848000,"implausible":false,"reciprocal_held_both_ways":false,"corporate_actions":["share split"],"note_refs":["3"],"share_ratio":2.0,"reclassified_to_pure":false},{"holder_table":"reporting","held_name_raw":"㈱コーセーホールディングス","held_name_en":"KOSÉ Holdings Corporation","held_sec_code":"4922","match_status":"matched","shares":4891,"book_value_yen":28731000,"prior_shares":4693,"prior_book_value_yen":29196000,"purpose_ja":"(保有目的)営業関係取引の維持・強化による将来的な企業価値向上のため(定量的な保有効果)(注)２(株式数が増加した理由)取引先持株会を通じた株式の取得","reciprocal":"無","pct_outstanding":0.008569525139151409,"pct_unavailable":null,"pct_basis_period_end":"2025-12-31","pct_share_classes":1,"pct_of_holder_equity":0.11063854858675053,"pct_of_holder_assets":0.08170375142813073,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":25968345000,"holder_total_assets_yen":35164848000,"implausible":false,"reciprocal_held_both_ways":false,"corporate_actions":[],"note_refs":["1"],"share_ratio":null,"reclassified_to_pure":false},{"holder_table":"reporting","held_name_raw":"東洋紡㈱","held_name_en":"TOYOBO CO., LTD.","held_sec_code":"3101","match_status":"matched","shares":17503,"book_value_yen":23051000,"prior_shares":16368,"prior_book_value_yen":15419000,"purpose_ja":"(保有目的)原材料の安定的調達の維持・強化を図るため(定量的な保有効果)(注)２ (株式数が増加した理由)取引先持株会を通じた株式の取得","reciprocal":"有","pct_outstanding":0.019834598284281753,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.08876576462612461,"pct_of_holder_assets":0.06555125732379108,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":25968345000,"holder_total_assets_yen":35164848000,"implausible":false,"reciprocal_held_both_ways":true,"corporate_actions":[],"note_refs":[],"share_ratio":null,"reclassified_to_pure":false},{"holder_table":"reporting","held_name_raw":"大日精化工業㈱","held_name_en":"DAINICHISEIKA COLOR & CHEMICALS MFG. CO., LTD.","held_sec_code":"4116","match_status":"matched","shares":200,"book_value_yen":862000,"prior_shares":200,"prior_book_value_yen":601000,"purpose_ja":"(保有目的)原材料の安定的調達の維持・強化を図るため(定量的な保有効果)(注)２ ","reciprocal":"有","pct_outstanding":0.0011722291872173097,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.003319426016559777,"pct_of_holder_assets":0.002451311605271264,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":25968345000,"holder_total_assets_yen":35164848000,"implausible":false,"reciprocal_held_both_ways":true,"corporate_actions":[],"note_refs":[],"share_ratio":null,"reclassified_to_pure":false}],"holders":[{"holder_name":"大日精化工業株式会社","holder_name_en":"DAINICHISEIKA COLOR & CHEMICALS MFG. CO., LTD.","holder_sec_code":"4116","doc_id":"S100YGML","period_end":"2026-03-31","holder_table":"reporting","shares":234886,"book_value_yen":585000000,"prior_shares":231550,"prior_book_value_yen":576000000,"purpose_ja":"食品や調味料等の液体小袋用のグラビアインキを中心とした販売取引があり、取引関係の維持・発展のため、保有を継続しております。また、保有先企業と共同研究を行っております。（株式数の増加）取引先持株会の定期買付です。","reciprocal":"有","pct_outstanding":3.7982858990944375,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.41427660930529,"pct_of_holder_assets":0.28474912871634117,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":141210000000,"holder_total_assets_yen":205444000000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"東洋紡株式会社","holder_name_en":"TOYOBO CO., LTD.","holder_sec_code":"3101","doc_id":"S100YGRC","period_end":"2026-03-31","holder_table":"reporting","shares":112054,"book_value_yen":279000000,"prior_shares":110663,"prior_book_value_yen":275000000,"purpose_ja":"発行会社は当社の包装用フィルムの重要な販売先であり、安定的な取引関係を維持していくため保有するもので、増加は持株会によるものです。","reciprocal":"無","pct_outstanding":1.8119987063389391,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.11071648246989027,"pct_of_holder_assets":0.04445032158772088,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":251995000000,"holder_total_assets_yen":627667000000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"株式会社武蔵野銀行","holder_name_en":"The Musashino Bank, Ltd.","holder_sec_code":"8336","doc_id":"S100YDFO","period_end":"2026-03-31","holder_table":"reporting","shares":100000,"book_value_yen":249000000,"prior_shares":100000,"prior_book_value_yen":248000000,"purpose_ja":"当行の主要な営業地域である埼玉県に本社を置く包装用フィルム等の製造・販売を行う企業で、同社との総合的な銀行取引関係の維持・強化を図るため保有しております。","reciprocal":"有","pct_outstanding":1.6170763260025873,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.08877100289842672,"pct_of_holder_assets":0.00440811028560837,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":280497000000,"holder_total_assets_yen":5648679000000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"ａｒｔｉｅｎｃｅ株式会社","holder_name_en":"artience Co., Ltd.","holder_sec_code":"4634","doc_id":"S100XRLA","period_end":"2025-12-31","holder_table":"reporting","shares":19341,"book_value_yen":51000000,"prior_shares":17935,"prior_book_value_yen":44000000,"purpose_ja":"ポリマー・塗加工関連事業の取引を行っており、取引関係の維持と強化を目的として保有しております。取引先企業の持株会の継続加入により、株式数が増加しております。","reciprocal":"無","pct_outstanding":0.31275873221216044,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.018396941057643747,"pct_of_holder_assets":0.011024643320363165,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":277220000000,"holder_total_assets_yen":462600000000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"ユニチカ株式会社","holder_name_en":"UNITIKA LTD.","holder_sec_code":"3103","doc_id":"S100YJHA","period_end":"2026-03-31","holder_table":"reporting","shares":19000,"book_value_yen":49000000,"prior_shares":18000,"prior_book_value_yen":45000000,"purpose_ja":"経済的効果や事業上のメリット、将来的な取引拡大の可能性、継続的安定的な取引の維持を目的として保有している。株式数の増加理由は、発行会社の取引先持株会を通じて継続的に購入しているためである。","reciprocal":"無","pct_outstanding":0.3072445019404916,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.09066686403671083,"pct_of_holder_assets":0.03251406731075486,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":54044000000,"holder_total_assets_yen":150704000000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"東ソー株式会社","holder_name_en":"TOSOH CORPORATION","holder_sec_code":"4042","doc_id":"S100YE5Q","period_end":"2026-03-31","holder_table":"reporting","shares":20000,"book_value_yen":49000000,"prior_shares":20000,"prior_book_value_yen":49000000,"purpose_ja":"同社の子会社は、石油化学事業におけるポリエチレン樹脂の販売先であり、取引関係の維持・発展のため保有しております。","reciprocal":"無","pct_outstanding":0.32341526520051744,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.0053310645483119565,"pct_of_holder_assets":0.003477767131551865,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":919141000000,"holder_total_assets_yen":1408950000000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"グンゼ株式会社","holder_name_en":"GUNZE LIMITED","holder_sec_code":"3002","doc_id":"S100YGEM","period_end":"2026-03-31","holder_table":"reporting","shares":18962,"book_value_yen":47000000,"prior_shares":17593,"prior_book_value_yen":43000000,"purpose_ja":"(保有目的)当社プラスチックカンパニーのナイロンフィルム製品の提供先であり、同社との良好な取引関係の維持・強化を図るため。前述の取締役会での検証の結果、当事業年度末においては保有継続の合理性があると判断している。(増加理由)良好な取引関係の維持・強化を目的に加入している取引先持株会による定期買付。なお、取引先持株会の継続加入については検討中である。","reciprocal":"無","pct_outstanding":0.30663001293661063,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.041320134334394173,"pct_of_holder_assets":0.03059656797646017,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":113746000000,"holder_total_assets_yen":153612000000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"株式会社ＧＳＩクレオス","holder_name_en":"GSI Creos Corporation","holder_sec_code":"8101","doc_id":"S100YGXI","period_end":"2026-03-31","holder_table":"reporting","shares":3884,"book_value_yen":9000000,"prior_shares":3677,"prior_book_value_yen":9000000,"purpose_ja":"当社工業製品事業における重要な販売先であり、同社との良好な関係を維持・強化するために保有取引先持株会により定期的に購入","reciprocal":"無","pct_outstanding":0.06280724450194049,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.027941633033219497,"pct_of_holder_assets":0.010077823190190918,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":32210000000,"holder_total_assets_yen":89305000000,"implausible":false,"reciprocal_held_both_ways":false}],"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)１．㈱コーセーホールディングス以下の銘柄は、貸借対照表計上額が資本金額の100分の１以下でありますが、保有特定投資株式が60銘柄以下であるため、全銘柄を記載しております。"},{"holder_table":"reporting","note_no":"2","text_ja":"２．定量的な保有効果については、秘密保持の観点から記載が困難なため省略しておりますが、個別の投資先ごとに関連する収益や受取配当金のリターン等を参考に保有意義の見直しを行っております。"},{"holder_table":"reporting","note_no":"3","text_ja":"３．ヱスビー食品㈱は、2025年４月１日付で普通株式１株を２株とする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":4,"acquisition_cost_yen":13681000,"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":null,"sale_proceeds_yen":null,"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":1072981000,"listed_yen":629210000,"unlisted_yen":443771000,"listed_issues":8,"unlisted_issues":2,"equity_yen":25968345000,"equity_basis":"jgaap_consolidated","total_assets_yen":35164848000,"assets_basis":"jgaap_consolidated","pct_of_equity":4.1318805645873855,"pct_of_assets":3.0512886050296593,"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":629210000,"issue_count":8,"holder_table_label":"The filer itself","entity_scope":"parent_only","share_scope":"listed"},{"holder_table":"reporting","share_class":"unlisted","book_value_yen":443771000,"issue_count":2,"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":427265000,"equity_yen":22838170000,"equity_basis":"jgaap_consolidated","pct_of_equity":1.870837286875437,"pct_of_assets":1.3607901905265511},{"year":"2023","period_end":"2023-03-31","policy_total_yen":908024000,"equity_yen":23357266000,"equity_basis":"jgaap_consolidated","pct_of_equity":3.887544030196,"pct_of_assets":2.896174012845404},{"year":"2024","period_end":"2024-03-31","policy_total_yen":972282000,"equity_yen":23954865000,"equity_basis":"jgaap_consolidated","pct_of_equity":4.058808095975494,"pct_of_assets":2.969452463509234},{"year":"2025","period_end":"2025-03-31","policy_total_yen":943751000,"equity_yen":25157659000,"equity_basis":"jgaap_consolidated","pct_of_equity":3.7513466574930523,"pct_of_assets":2.7578006884982753},{"year":"2026","period_end":"2026-03-31","policy_total_yen":1072981000,"equity_yen":25968345000,"equity_basis":"jgaap_consolidated","pct_of_equity":4.1318805645873855,"pct_of_assets":3.0512886050296593}],"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":9,"book_value_yen":426163000},{"year":"2023","period_end":"2023-03-31","named_holdings":9,"book_value_yen":464251000},{"year":"2024","period_end":"2024-03-31","named_holdings":9,"book_value_yen":528509000},{"year":"2025","period_end":"2025-03-31","named_holdings":9,"book_value_yen":499977000},{"year":"2026","period_end":"2026-03-31","named_holdings":8,"book_value_yen":629207000}],"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."}}