EM SYSTEMS CO.,LTD. (4820) — research page
JP · jp-cm-kg/TSE-PRIME/4820 · as of 2026-11-06
Identity and listing
The issuer is EM SYSTEMS CO.,LTD., listed on the Prime Market under ticker 4820. Its ISIN is JP3130200003 and its LEI is 529900A0W2NTNPGSMM57. The security type is Corporate, the segment is not on the record, the sector is 5250 Information & Communication, and the jurisdiction is Japan (EDINET domestic filer). The issuer is listed and not halted.
| field | value | source · read date |
|---|---|---|
| name | EM SYSTEMS CO.,LTD. | source · 2026-11-06 |
| exchange | Prime Market | source · 2026-11-06 |
| ticker | 4820 | source · 2026-11-06 |
| ISIN | JP3130200003 | source · 2026-11-06 |
| LEI | 529900A0W2NTNPGSMM57 | source · 2026-11-08 |
| security type | Corporate | source · 2026-11-06 |
| segment | not on the record | |
| sector | 5250 Information & Communication | 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 7 filings in the twelve months to 2026-11-06, across 4 filing days. Of these, 2 are ad hoc, 3 are regulatory filings and 2 are results. The median gap between filing days is 67 days. The latest filing is dated 2026-10-16, is of type ad hoc, and was made 21 days before the record date. The Prime Market median is 29.0 days of cadence gap, 10 filings and 70.0 days of latency across 1557 issuers. The sector median is 38 days of cadence gap, 8.0 filings and 85.0 days of latency across 644 issuers.
| filings | median gap between filing days | days from latest filing to as-of | |
|---|---|---|---|
| this issuer | 7 | 67 | 21 |
| exchange median: Prime Market (1557 issuers) | 10 | 29 | 70 |
| sector median: 5250 Information & Communication (644 issuers) | 8 | 38 | 85 |
| date | type | category | filing |
|---|---|---|---|
| 2026-10-16 | ad_hoc | 臨時報告書 (extraordinary report) | 臨時報告書 |
| 2026-08-10 | regulatory_filing | 135 | 確認書 |
| 2026-08-10 | results | 半期報告書 (half-year report) | 半期報告書－第44期(2026/01/01－2026/12/31) |
| 2026-03-30 | ad_hoc | 臨時報告書 (extraordinary report) | 臨時報告書 |
| 2026-03-26 | regulatory_filing | 235 | 内部統制報告書－第43期(2025/01/01－2025/12/31) |
window 2025-11-06 to 2026-11-06 · the node's disclosure lines, as get_filings serves them
Auditor
The auditor of record is 桜橋監査法人. Its location is not on the record. Auditor changes are not on the record, as this register has no lifecycle type map yet.
Events and halts
Listing, delisting, name change, domicile change and segment move are not on the record, as this register has no lifecycle type map yet. The issuer is listed and not halted.
Orderability
For the client category Qualified Institutional Investors, the outcome is not determinable. 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 pages.
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/4820 (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?S100XUIK (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/4820 (the record)
Read it by agent
The same page, signed and receipted: get_research at https://mcp.getresearch.ai/mcp with {"isin":"JP3130200003"}. Twins: .md · .json. Written: Claude through the platform account, Haiku class; one pass; checked against the numbers. Page hash sha256:0be0baba86dddaab.