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TRISTEL PLC — Investor Relations & Filings

Ticker · TSTL ISIN · GB00B07RVT99 LEI · 2138009DZ4LH9CZGF662 IL Manufacturing
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Filings indexed 453 across all filing types
Latest filing 2026-05-13 Share Issue/Capital Cha…
Country GB United Kingdom
Listing IL TSTL

About TRISTEL PLC

https://www.tristel.com/

Tristel PLC is an infection prevention company that develops, manufactures, and sells disinfection products based on its proprietary chlorine dioxide (ClO2) chemistry. The company's solutions are designed to halt the transmission of microbes in healthcare settings, with a focus on the high-level disinfection of medical devices and surfaces. Key products include the Tristel Trio Wipes System, a comprehensive solution for the decontamination of medical instruments at the point of care. Tristel supports its offerings with services such as training, research and development, product validation, and the 3T digital compliance application, which provides traceability and an audit trail for decontamination procedures.

Recent filings

Filing Released Lang Actions
Exercise of Share Options and Total Voting Rights
Share Issue/Capital Change Classification · 93% confidence The document is an RNS announcement on AIM describing the issuance and allotment of 34,750 new ordinary shares upon exercise of employee options, application for admission to trading, and an update on total voting rights. This is a straightforward share issue and capital change notice rather than a full financial report or other corporate action. It therefore falls under Share Issue/Capital Change (Code: SHA).
2026-05-13 English
Exercise of Share Options and Total Voting Rights
Share Issue/Capital Change Classification · 100% confidence The document is an announcement from Tristel plc regarding the exercise of share options by employees and the resulting issuance and allotment of new ordinary shares. It also provides updated total voting rights after the share issuance. The document includes details about the admission of new shares to trading on AIM and the expected date of trading commencement. There are no financial statements, detailed financial analysis, or management discussion of results. The content focuses on share capital changes and voting rights, which aligns with announcements about share issues or capital changes. The document length is 4510 characters, which is sufficient for a detailed announcement but does not contain a full financial report or earnings release. Therefore, the appropriate classification is Share Issue/Capital Change (SHA).
2026-05-05 English
Holding(s) in Company
Major Shareholding Notification Classification · 95% confidence The document is an RNS announcement titled “Holding(s) in Company” reporting that Artemis Investment Management LLP holds 3.00216% of Tristel plc’s issued share capital. This clearly matches a Major Shareholding Notification (threshold crossing) rather than a financial report, management change, or other corporate filing.
2026-04-20 English
Holding(s) in Company
Major Shareholding Notification Classification · 95% confidence The document is a TR-1 form under the UK’s Disclosure and Transparency Rules, providing details of a notification of major holdings by Montanaro Asset Management Limited in Tristel PLC. This clearly matches a Major Shareholding Notification under our taxonomy.
2026-04-20 English
Director/PDMR Shareholding
Director's Dealing Classification · 93% confidence The document is an RNS announcement of a Non-Executive Director (PDMR) purchasing 2,597 ordinary shares, including full Form 3/4 style details (name, position, transaction date, instrument code, price, volume). This matches the definition of Director’s Dealing (insider share transactions by company directors). It is not a company share buyback (POS) but a personal deal notification. Therefore the correct classification is DIRS.
2026-03-23 English
Conference attendance at ShareSoc Leeds
Regulatory Filings Classification · 95% confidence The document is a short announcement (under 5,000 characters) from Tristel PLC regarding their upcoming attendance and presentation at an investor event (ShareSoc Growth Company). It does not contain the presentation itself, but rather notifies the public of the event and mentions that a PDF will be available on their website. As it is a general regulatory announcement that does not fit into specific categories like earnings or dividends, and serves as a press release/notice, it is classified as a Regulatory Filing (RNS).
2026-03-18 English

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