MENDELL HELIUM PLC (MDH) — research page
UK · uk-cm-kg/AIM/MDH · as of 2026-11-06
Identity and listing
The issuer is MENDELL HELIUM PLC, listed on AIM under ticker MDH, with ISIN GB00BLD3FF28 and LEI 213800XIUQ3AHRZ6UF89. Its security type is Corporate, its segment is ASQ1, its sector is Chemicals [552010], and its jurisdiction is Scotland per the Companies House jurisdiction field. Its listing status is listed, not halted.
| field | value | source · read date |
|---|---|---|
| name | MENDELL HELIUM PLC | source · 2026-11-06 |
| exchange | AIM | source · 2026-11-06 |
| ticker | MDH | source · 2026-11-06 |
| ISIN | GB00BLD3FF28 | source · 2026-11-06 |
| LEI | 213800XIUQ3AHRZ6UF89 | source · 2026-11-09 |
| security type | Corporate | source · 2026-11-06 |
| segment | ASQ1 | source · 2026-11-06 |
| sector | Chemicals [552010] | source · 2026-11-06 |
| jurisdiction | Scotland (Companies House jurisdiction field) | source · 2026-11-06 |
| status | listed, not halted | source · 2026-11-09 |
The disclosure read
The record holds 66 filings on 59 filing days in the window 2025-11-06 to 2026-11-06. The median gap between filing days is 6.0 days. The latest filing is dated 2026-11-04, is of type agm_record_date, and sits 2 days before the record date of 2026-11-06. The exchange median cadence gap is 7.0 days across 594 AIM issuers, and the exchange median latency is 4 days. The sector median cadence gap is 6.0 days across 17 issuers, and the sector median latency is 3 days.
| filings | median gap between filing days | days from latest filing to as-of | |
|---|---|---|---|
| this issuer | 66 | 6 | 2 |
| exchange median: AIM (594 issuers) | 33.5 | 7 | 4 |
| sector median: Chemicals [552010] (17 issuers) | 40 | 6 | 3 |
| date | type | category | filing |
|---|---|---|---|
| 2026-11-04 | agm_record_date | Result of AGM | |
| 2026-10-27 | regulatory_announcement | US DOE helium critical material designation | |
| 2026-10-21 | regulatory_announcement | Drilling locations identified for Fort Dodge | |
| 2026-10-15 | early_warning | Holding(s) in Company | |
| 2026-10-13 | ch_accounts_filed | accounts with accounts type group — 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 PKF Littlejohn LLP. Its location is not on the record. Auditor changes are not on the record, as the market's record does not carry them.
Events and halts
Listing, delisting, name change, domicile change and segment move are not on the record, as no lifecycle type map exists for this register yet. The halt flag is listed, not halted.
Orderability
The outcome is not determinable for elective professional client and for eligible counterparty, 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/uk/product-governance-fca-prod-sourcebook/r1, with the chapter as of 2026-11-04.
| client category | outcome |
|---|---|
| elective professional client | not determinable: the rule states a product scope and the subject's record carries no instrument class to place within it |
| eligible counterparty | not determinable: the rule states a product scope and the subject's record carries no instrument class to place within it |
rule acm-68000/uk/product-governance-fca-prod-sourcebook/r1 · chapter as of 2026-11-04 · the full outcome: get_orderability
Coverage
No research houses were found on the issuer's own investor-relations page; the count is 0.
Open research
No openly published research notes were found on the record; 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 vintage is not sealed, and no issuer years are sealed. The market's earliest sealed date is not on the record. The live record began on 2026-09-11. Years 2021 through 2026 are sealed in the store but not served as of a date, and the as-of door answers not_sealed.
Sources
10 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.londonstockexchange.com/live-markets/market-data-dashboard/price-explorer (identity.exchange)
- 10.2
- https://api.londonstockexchange.com/api/gw/lse/instruments/alldata/MDH (identity.isin)
- 10.3
- https://find-and-update.company-information.service.gov.uk/company/SC680788 (identity.jurisdiction)
- 10.4
- https://mapping.gleif.org/api/v2/isin-lei/latest/download (identity.lei)
- 10.5
- https://www.londonstockexchange.com/stock/MDH/mendell-helium-plc/company-page (identity.sector)
- 10.6
- https://mcp.uk-cm-kg.ai/events/AIM/MDH (the disclosure lines)
- 10.7
- https://marketsecurities.fca.org.uk/officiallist (the halt flag)
- 10.8
- https://find-and-update.company-information.service.gov.uk/company/SC680788/filing-history/MzQ4Mzc5NjU3MGFkaXF6a2N4/document?format=pdf&download=0 (the auditor)
- 10.9
- https://mcp.uk-cm-kg.ai/book/aio.json (the orderability chapter)
- 10.10
- https://mcp.uk-cm-kg.ai/record/AIM/MDH (the record)
Read it by agent
The same page, signed and receipted: get_research at https://mcp.getresearch.ai/mcp with {"isin":"GB00BLD3FF28"}. Twins: .md · .json. Written: Claude through the platform account, Haiku class; one pass; checked against the numbers. Page hash sha256:f1737f238679df23.