Sekisui Kasei Co.,Ltd. (4228) — research page
JP · jp-cm-kg/TSE-PRIME/4228 · as of 2026-11-06
Identity and listing
The issuer is Sekisui Kasei Co.,Ltd., listed on the Prime Market under ticker 4228. Its ISIN is not on the record, and its LEI is not on the record. Its security type is Corporate, its segment is not on the record, and its sector is 3200 Chemicals. Its jurisdiction is Japan (EDINET domestic filer). Its listing status is listed, not halted.
| field | value | source · read date |
|---|---|---|
| name | Sekisui Kasei Co.,Ltd. | source · 2026-11-06 |
| exchange | Prime Market | source · 2026-11-06 |
| ticker | 4228 | source · 2026-11-06 |
| ISIN | not on the record | |
| LEI | not on the record | |
| security type | Corporate | source · 2026-11-06 |
| segment | not on the record | |
| sector | 3200 Chemicals | 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 8 filings across 5 filing days in the window 2025-11-06 to 2026-11-06. The filings are 3 ad hoc, 3 regulatory filing and 2 results. The median gap between filing days is 29.5 days. The latest filing is dated 2026-06-25 and is of type ad hoc, which is 134 days before the record date of 2026-11-06. The exchange median is 29.0 days of cadence, 10 filings and 70.0 days of latency across 1557 issuers. The sector median is 36.5 days of cadence, 9.0 filings and 91 days of latency across 202 issuers.
| filings | median gap between filing days | days from latest filing to as-of | |
|---|---|---|---|
| this issuer | 8 | 29.5 | 134 |
| exchange median: Prime Market (1557 issuers) | 10 | 29 | 70 |
| sector median: 3200 Chemicals (202 issuers) | 9 | 36.5 | 91 |
| date | type | category | filing |
|---|---|---|---|
| 2026-06-25 | ad_hoc | 臨時報告書 (extraordinary report) | 臨時報告書 |
| 2026-06-23 | regulatory_filing | 135 | 確認書 |
| 2026-06-23 | regulatory_filing | 235 | 内部統制報告書－第82期(2025/04/01－2026/03/31) |
| 2026-06-23 | results | 有価証券報告書 (annual securities report) | 有価証券報告書－第82期(2025/04/01－2026/03/31) |
| 2026-04-27 | ad_hoc | 臨時報告書 (extraordinary report) | 臨時報告書 |
window 2025-11-06 to 2026-11-06 · the node's disclosure lines, as get_filings serves them
Auditor
The auditor of record is EY新日本有限責任監査法人. Its location is not on the record. Auditor changes are not on the record.
Events and halts
Listing, delisting, name change, domicile change and segment move are not on the record, because no lifecycle type map exists for this register. The halt flag shows 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 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. The count is 0.
Open research
No openly published research notes were found. The count is 0.
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
7 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://disclosure2dl.edinet-fsa.go.jp/searchdocument/codelist/Edinetcode.zip (identity.jurisdiction)
- 10.3
- https://mcp.jp-cm-kg.ai/events/TSE-PRIME/4228 (the disclosure lines)
- 10.4
- https://www.jpx.co.jp/markets/equities/suspended/index.html (the halt flag)
- 10.5
- https://disclosure2.edinet-fsa.go.jp/WZEK0040.aspx?S100YI2M (the auditor)
- 10.6
- https://mcp.jp-cm-kg.ai/book/aio.json (the orderability chapter)
- 10.7
- https://mcp.jp-cm-kg.ai/record/TSE-PRIME/4228 (the record)
Read it by agent
The same page, signed and receipted: get_research at https://mcp.getresearch.ai/mcp with {"ticker":"4228","exchange":"Prime Market"}. Twins: .md · .json. Written: Claude through the platform account, Haiku class; one pass; checked against the numbers. Page hash sha256:fe4b7415a985763e.