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Spirent Communications PLC — Investor Relations & Filings

Ticker · SPT ISIN · GB0004726096 LEI · 213800HKCUNWP1916L38 IL Telecommunications, computer programming, consultancy, computing infrastructure, and other information service activities
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Filings indexed 1,706 across all filing types
Latest filing 2025-07-22 Major Shareholding Noti…
Country GB United Kingdom
Listing IL SPT

About Spirent Communications PLC

https://www.spirent.com/

Spirent Communications is a global provider of automated testing and assurance solutions for networks, cybersecurity, and positioning. The company's portfolio enables technology developers, service providers, and enterprises to validate and optimize new technologies and services throughout their lifecycle. Key offerings include solutions for validating 5G and next-generation networks, ensuring the performance of positioning, navigation, and timing (PNT) systems through GNSS simulation, and testing security infrastructure against threats. Spirent's solutions are designed to help customers accelerate development, reduce operational complexity, enhance user experience, and secure their networks and devices. The company supports innovation in development labs, communication networks, and IT organizations by providing tools to manage the increasing complexity and security vulnerabilities of modern technologies.

Recent filings

Filing Released Lang Actions
Form 8.3 - Spirent Communications plc
Major Shareholding Notification Classification · 99% confidence The document is explicitly titled "FORM 8.3 - Spirent Communications plc" and references "Rule 8.3 of the Takeover Code (the “Code”)". This form is a Public Opening Position Disclosure/Dealing Disclosure made by a person holding 1% or more interests in relevant securities during a takeover situation. This type of disclosure relates directly to insider/significant shareholder activity during a takeover bid. Among the provided categories, the closest fit for disclosures related to takeover activity, insider dealings, or significant share ownership changes during a corporate action is related to insider trading or major shareholding notifications. Since this is specifically tied to a takeover (Rule 8.3 of the Takeover Code), it falls under the scope of significant ownership changes during a corporate event. While 'DIRS' covers director dealings, this is a disclosure by a major shareholder/fund manager (Millennium International Management LP) regarding a takeover target (Spirent Communications plc). The most relevant category covering significant ownership changes, especially in the context of M&A activity, is 'MRQ' (Major Shareholding Notification) or potentially 'TAR' (M&A Activity). Given the explicit reference to the Takeover Code and dealing disclosures related to an offer, it is a specific type of insider/major shareholder disclosure during an M&A event. However, the structure strongly resembles an insider dealing report, but for a major shareholder during an offer, not necessarily a director. Since the document details positions and dealings related to an offer, and the closest specific category for ownership changes is MRQ, I will evaluate the options. 'DIRS' is for directors. 'MRQ' is for major shareholding notification (crossing thresholds). 'TAR' is for M&A activity announcements. Since this is a mandatory disclosure *during* an offer, it is highly related to M&A activity. However, Form 8.3 is fundamentally a disclosure of interests/dealings. Given the options, 'DIRS' (Director's Dealing) is too narrow. 'MRQ' covers major shareholding notifications. 'TAR' covers the M&A proposal itself. Since this is a direct disclosure mandated by the Takeover Code regarding interests in securities during an offer, it is most closely aligned with the regulatory requirements surrounding M&A activity, but it is fundamentally a disclosure of shareholding/dealing. In many classification schemes, takeover-related disclosures fall under M&A (TAR) or insider dealings (DIRS). Since this is a major shareholder disclosure during a takeover, and 'TAR' covers M&A activity, I will select 'TAR' as the context is clearly a takeover scenario governed by the Takeover Code. If 'TAR' was not available, 'MRQ' would be the next best fit for a major shareholder disclosure.
2025-07-22 English
Form 8.3 - Spirent Communications plc
Major Shareholding Notification Classification · 98% confidence The document is explicitly titled "FORM 8.3 - Spirent Communications plc" and references "Rule 8.3 of the Takeover Code (the “Code”)". This form is a Public Opening Position Disclosure or Dealing Disclosure made by a person holding 1% or more interest in relevant securities during a takeover situation. This type of filing relates directly to insider/significant shareholder activity during a takeover bid, which falls under the scope of M&A activity or significant shareholding disclosure, but the specific nature of reporting interests and dealings under the Takeover Code aligns most closely with disclosures related to M&A activity (TAR) or, more generally, insider dealing/significant ownership changes. Since the document details positions and dealings related to an offer (Spirent Communications plc), it is directly related to a takeover/merger scenario. The closest fit among the provided codes is TAR (M&A Activity), as Form 8.3 is mandatory during takeover offers.
2025-07-21 English
Holding(s) in Company
Major Shareholding Notification Classification · 99% confidence The document is explicitly labeled with 'RNS Number : 9139R' and contains the standard header/footer information associated with RNS (Regulatory News Service) announcements from the London Stock Exchange. The content details a 'TR-1: Standard form for notification of major holdings' concerning JPMorgan Chase & Co. crossing a threshold of voting rights in Spirent Communications PLC. This type of mandatory disclosure regarding changes in significant share ownership falls directly under the definition of Major Shareholding Notification (MRQ). Although it is distributed via RNS, the specific content is a major holding notification, making MRQ the most precise classification.
2025-07-21 English
Form 8.3 - Spirent Communications plc
Major Shareholding Notification Classification · 98% confidence The document is explicitly titled 'FORM 8.3 - Spirent Communications plc' and references 'Rule 8.3 of the Takeover Code (the “Code”)'. This form is a Public Opening Position Disclosure or Dealing Disclosure made by a person holding 1% or more interest in relevant securities during a takeover situation. This type of filing relates to insider transactions or significant ownership changes during a takeover bid, which falls under the scope of insider trading/director dealings, but specifically within the context of a takeover. Among the provided codes, 'Director's Dealing (DIRS)' is the closest fit for reporting personal share transactions by insiders/major holders, although this specific form (Form 8.3) is highly specialized for UK Takeover Code events. Since there is no specific code for 'Takeover Disclosure Form 8.3', and it details interests and dealings of a major shareholder/controller in securities related to an offer, it is best classified as a specialized form of insider/major shareholder disclosure. 'DIRS' (Director's Dealing) is the most appropriate category for reporting personal share transactions by executives/insiders, which this disclosure details for Millennium International Management LP in relation to Spirent Communications plc.
2025-07-18 English
Form 8.3 - Spirent Communications plc
Major Shareholding Notification Classification · 97% confidence The document is explicitly titled "FORM 8.3 - Spirent Communications plc" and references "Rule 8.3 of the Takeover Code (the “Code”)". This form is used for Public Opening Position Disclosure or Dealing Disclosure by a person holding 1% or more interest in relevant securities during a takeover situation. This type of disclosure relates to insider/significant shareholder activity during a takeover bid, which is a specific regulatory filing concerning share ownership and dealings related to an offer. While it involves share transactions, it is specifically mandated by the Takeover Code, making it distinct from general Director's Dealing (DIRS) or general Share Issue/Capital Change (SHA). Given the options, this highly specific regulatory disclosure related to a takeover bid fits best under the general category of regulatory filings that don't have a more specific code, or potentially DIRS if the focus was purely on insider trading, but the context of the Takeover Code (Rule 8.3) points towards a specific regulatory disclosure related to an ongoing M&A event. Since there is no specific code for 'Takeover Disclosure', and it is a mandatory regulatory filing, 'RNS' (Regulatory Filings) is the most appropriate fallback, although 'TAR' (M&A Activity) is related, this document is the disclosure form itself, not the M&A announcement. However, looking closely at the definitions, 'DIRS' covers personal share transactions by directors/executives. This is a disclosure by an investment manager (Millennium International Management LP) regarding their position during a takeover. This is a mandatory disclosure under the Takeover Code, which is a specific regulatory framework. Since it details interests and dealings in securities related to an offer, and there is no specific 'Takeover Disclosure' code, 'RNS' serves as the best general regulatory filing category for this specific form.
2025-07-17 English
Form 8.3 - Spirent Communications plc
Major Shareholding Notification Classification · 99% confidence The document is explicitly titled 'FORM 8.3 - Spirent Communications plc' and references 'Rule 8.3 of the Takeover Code (the “Code”)'. Form 8.3 disclosures relate to a person with interests in relevant securities representing 1% or more during a takeover offer. This type of filing is a specific regulatory disclosure concerning insider dealings or significant holdings during a takeover scenario. While it involves director/insider activity (related to DIRS) and major shareholdings (related to MRQ), the specific context of the Takeover Code (Rule 8.3) dealing disclosure during an offer is not explicitly covered by the provided definitions (AGM-R, 10-K, AR, MANG, CT, CAP, DVA, DLST, DIRS, ER, SR, XLSX, FS, CGR, IRAT, IR, IP, LTR, TAR, MRQ, MDA, NAV, DIV, PSI, RNS, DEF 14A, RPA, SHA, POS). Since this is a highly specific regulatory filing related to a takeover bid (which aligns conceptually with M&A Activity - TAR, but is a distinct form), and it doesn't fit perfectly into the other categories, the most appropriate fallback category for a specific, non-standard regulatory disclosure is 'Regulatory Filings' (RNS), as per Rule 3, unless it is clearly an announcement of a report (which it is not, it *is* the disclosure). Given the options, RNS serves as the best general regulatory filing bucket for disclosures that don't match the specific M&A (TAR) or Insider Dealing (DIRS) definitions, as Form 8.3 is a mandatory disclosure to the Takeover Panel, making it a general regulatory filing.
2025-07-16 English

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