The page is the record's research on the issuer — no analyst, no rating, no view. # Eisai Co.,Ltd. (Prime Market: 4523) — research page As of 2026-11-06 · jp-cm-kg · record version 1 ## Identity and listing The issuer is Eisai Co.,Ltd., listed on the Prime Market under ticker 4523. Its ISIN is JP3160400002 and its LEI is 353800HDEE0ZYEX4QV91. Its security type is Corporate, its segment is not on the record, and its sector is 3250 Pharmaceutical. Its jurisdiction is Japan (EDINET domestic filer). Its listing status is listed, not halted. ## The disclosure read The record holds 11 filings on 6 filing days in the window 2025-11-06 to 2026-11-06. The filings comprise 2 ad hoc, 4 prospectus, 3 regulatory filing and 2 results. The median gap between filing days is 20 days. The latest filing is an ad hoc filing dated 2026-06-18, 141 days before the record date of 2026-11-06. The Prime Market median is 10 filings, a median cadence gap of 29.0 days and a median latency of 70.0 days. The 3250 Pharmaceutical sector median is 8.0 filings, a median cadence gap of 49.5 days and a median latency of 85.0 days. ## Auditor The auditor of record is 有限責任監査法人トーマツ. Its location is not on the record. Auditor changes are not on the record. ## Events and halts The record carries no listing, delisting, name change, domicile change or segment move dates, because the index has no lifecycle type map for this market. The issuer is listed, not halted. ## Orderability For the client category Qualified Institutional Investors, the outcome is not determinable, because the rule states a product scope and the subject's record carries no instrument class to place within it. The rule version is acm-68000/jp/suitability-principle-fiea-article-40/r1, and the chapter is as of 2026-11-04. ## Coverage No research houses were found on the issuer's investor-relations page. ## Open research No openly published research notes were found on the record. ## Licensed Licensed research: none loaded. A licensed row is served only to an agent whose firm holds that licence (licensor, entitlement). No licensed row is loaded. ## As-of depth The market's vintage is not sealed. No issuer years are sealed, the market's earliest sealed date is not on the record, and the live record began is not on the record. ## Sources 9 source pages are named on this page; every value above carries its own source page and read date in the numbers. - https://www.jpx.co.jp/english/markets/statistics-equities/misc/tvdivq0000001vg2-att/data_e.xlsx (identity.exchange) - https://mapping.gleif.org/api/v2/isin-lei/latest (identity.isin) - https://disclosure2dl.edinet-fsa.go.jp/searchdocument/codelist/Edinetcode.zip (identity.jurisdiction) - https://mapping.gleif.org/api/v2/isin-lei/latest/download (identity.lei) - https://mcp.jp-cm-kg.ai/events/TSE-PRIME/4523 (the disclosure lines) - https://www.jpx.co.jp/markets/equities/suspended/index.html (the halt flag) - https://disclosure2.edinet-fsa.go.jp/WZEK0040.aspx?S100YB05 (the auditor) - https://mcp.jp-cm-kg.ai/book/aio.json (the orderability chapter) - https://mcp.jp-cm-kg.ai/record/TSE-PRIME/4523 (the record) --- Allooloo Technologies Corp. · https://getresearch.ai/jp/TSE-PRIME/4523 · public-record only · the same page signed and receipted: get_research at https://mcp.getresearch.ai/mcp