Eisai Co.,Ltd. (4523) — research page
JP · jp-cm-kg/TSE-PRIME/4523 · as of 2026-11-06
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.
| field | value | source · read date |
|---|---|---|
| name | Eisai Co.,Ltd. | source · 2026-11-06 |
| exchange | Prime Market | source · 2026-11-06 |
| ticker | 4523 | source · 2026-11-06 |
| ISIN | JP3160400002 | source · 2026-11-06 |
| LEI | 353800HDEE0ZYEX4QV91 | source · 2026-11-08 |
| security type | Corporate | source · 2026-11-06 |
| segment | not on the record | |
| sector | 3250 Pharmaceutical | source · 2026-11-06 |
| jurisdiction | Japan (EDINET domestic filer) | source · 2026-11-06 |
| status | listed, not halted | source · 2026-11-08 |
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.
| filings | median gap between filing days | days from latest filing to as-of | |
|---|---|---|---|
| this issuer | 11 | 20 | 141 |
| exchange median: Prime Market (1557 issuers) | 10 | 29 | 70 |
| sector median: 3250 Pharmaceutical (80 issuers) | 8 | 49.5 | 85 |
| date | type | category | filing |
|---|---|---|---|
| 2026-06-18 | ad_hoc | 臨時報告書 (extraordinary report) | 臨時報告書 |
| 2026-06-18 | prospectus | 090 | 訂正発行登録書 |
| 2026-06-12 | regulatory_filing | 235 | 内部統制報告書－第114期(2025/04/01－2026/03/31) |
| 2026-06-12 | regulatory_filing | 135 | 確認書 |
| 2026-06-12 | results | 有価証券報告書 (annual securities report) | 有価証券報告書－第114期(2025/04/01－2026/03/31) |
window 2025-11-06 to 2026-11-06 · the node's disclosure lines, as get_filings serves them
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.
| client category | outcome |
|---|---|
| Qualified Institutional Investors | not determinable: the rule states a product scope and the subject's record carries no instrument class to place within it |
rule acm-68000/jp/suitability-principle-fiea-article-40/r1 · chapter as of 2026-11-04 · the full outcome: get_orderability
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.
| licensor | entitlement | title | date | source |
|---|---|---|---|---|
| none 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.
- 10.1
- https://www.jpx.co.jp/english/markets/statistics-equities/misc/tvdivq0000001vg2-att/data_e.xlsx (identity.exchange)
- 10.2
- https://mapping.gleif.org/api/v2/isin-lei/latest (identity.isin)
- 10.3
- https://disclosure2dl.edinet-fsa.go.jp/searchdocument/codelist/Edinetcode.zip (identity.jurisdiction)
- 10.4
- https://mapping.gleif.org/api/v2/isin-lei/latest/download (identity.lei)
- 10.5
- https://mcp.jp-cm-kg.ai/events/TSE-PRIME/4523 (the disclosure lines)
- 10.6
- https://www.jpx.co.jp/markets/equities/suspended/index.html (the halt flag)
- 10.7
- https://disclosure2.edinet-fsa.go.jp/WZEK0040.aspx?S100YB05 (the auditor)
- 10.8
- https://mcp.jp-cm-kg.ai/book/aio.json (the orderability chapter)
- 10.9
- https://mcp.jp-cm-kg.ai/record/TSE-PRIME/4523 (the record)
Read it by agent
The same page, signed and receipted: get_research at https://mcp.getresearch.ai/mcp with {"isin":"JP3160400002"}. Twins: .md · .json. Written: Claude through the platform account, Haiku class; one pass; checked against the numbers. Page hash sha256:a9370569946a795d.