See stock-exchange'>London Stock Exchange.

The London Stock Exchange (LSE) has confirmed amendments to the Alternative Investment Market (AIM) Rules for Companies to implement the Public Offers and Admissions to Trading Regulations 2024, which replace the UK Prospectus Regulation. These changes align the AIM Rules with the Financial Conduct Authority’s (FCA's) final rules contained in Policy Statement PS25/9, including the Prospectus Rules: Admission to Trading on a Regulated Market sourcebook and amendments to the Market Conduct sourcebook for operators of primary multilateral trading facilities.

The London Stock Exchange (LSE) has announced amendments to its Admission and Disclosure Standards to implement the Public Offers and Admissions to Trading Regulations 2024, SI 2024/105 (POATRs), which will replace the UK Prospectus Regulation, and to implement the Financial Conduct Authority (FCA)’s new Prospectus Rules: Admission to Trading on a Regulated Market sourcebook, as well as changes reflecting amendments to the FCA’s Listing Rules. The administrative changes include the removal of references to Listing Particulars and Form 1, with all applications for admission to trading now required to be made via the Self Service Portal. The amended Standards will take effect from 19 January 2026, with an updated version available on the Exchange’s website from that date.

The London Stock Exchange (LSE) has confirmed the final version of its rules for the Private Securities Market, which operates as a Private Intermittent Securities and Capital Exchange System (PISCES).  It says no changes were proposed in relation to the Rules of the LSE or the Admission and Disclosure Standards.

The London Stock Exchange (LSE) has launched a consultation on proposed changes to the ‘AIM Rules for Companies’ and the ‘AIM Disciplinary Procedures and Appeals Handbook’ aimed at making AIM more attractive and accessible for growth companies while maintaining investor protections. The proposals would simplify the admission process by removing the requirement for a working capital statement in AIM admission documents and allowing UK-incorporated AIM companies to use UK GAAP accounting standards. The LSE also proposes allowing more information to be incorporated by reference in admission documents to reduce costs and complexity. The consultation closes on 2 July 2026.

The London Stock Exchange (LSE) has launched a consultation on proposed amendments to the AIM Rules for Nominated Advisers (Nomad Rules) as part of its wider programme of AIM reforms. The proposed changes are intended to align the Nomad Rules with the proposed amendments to the AIM Rules for Companies and include updates relating to AIM Rule 11, the proposed introduction of Express Market, Main Market and dual-market admission routes, and revisions to the nominated adviser declaration. The LSE also proposes to amend Rule 14 to expressly reflect a nominated adviser’s overriding obligation to preserve the reputation and integrity of AIM. The consultation closes on 2 July 2026.

The London School of Economics (LSE) has published its ‘Global Trends in Climate Change Litigation: 2026 Snapshot’, reviewing developments in global climate litigation during 2025 and up to May 2026. The report examines trends in the evolution, complexity and impact of climate litigation. It states that 249 new climate cases were filed in 2025, bringing the global total to more than 3,600 cases across 62 countries. The report notes that more than three quarters of all cases have been filed since the Paris Agreement was adopted in 2015, with the US continuing to record the highest number of cases.

The London Stock Exchange (LSE) has published its feedback statement on the future development of AIM following consultation responses to its April 2025 discussion paper. The LSE has implemented immediate changes through derogations and updated guidance, including permitting dual class share structures meeting Main Market requirements for AIM companies and modifying AIM Rule 13 requirements for director remuneration where nominated advisers are satisfied with contractual protections. The statement introduces flexibility for reverse takeover classifications under AIM Rule 14, removes automatic trading suspensions for certain reverse takeovers, and permits incorporation by reference for historical financial information and use of UK GAAP (FRS 102) rather than requiring IFRS. The LSE will dispense with Admission Document requirements for second lines of securities and is engaging with the FCA on liquidity management rules and the FRC on proportionate audit approaches for AIM companies. A consultation on comprehensive AIM Rule changes and new technical guidance for nominated advisers is planned for the first half of 2026, alongside proposals to digitise Admission Documents and enhance trading systems.

The London Stock Exchange (LSE) has published a notice confirming the proposed changes to its Admission and Disclosure Standards that will apply following changes to the Listing Rules announced by the Financial Conduct Authority (FCA) on 11 July 2024. The amendments to the Standards will reflect the replacement of the standard and premium listing segments with a single listing segment. The LSE is also closing the High Growth Segment (HGS) and deleting the specific segment rules in Schedule 5 of the Standards given that the new Listing Rules have changed the requirement for shares in public hands making the HGS's purpose redundant. The amendments to the Standards will become effective from 29 July 2024.

The London Stock Exchange (LSE) has published a discussion paper, seeking market feedback on the regulatory design of AIM and the development of the AIM Rules for Companies (AIM Rules). Among other things, the LSE is seeking input on aspects of AIM’s regulatory model which create the most friction points and act as an impediment to companies joining AIM or those already admitted to AIM including views on the nominated adviser model. Additionally, feedback is sought on how the LSE can evolve the AIM Rules in areas including: AIM admission documents, working capital statements, reverse takeovers, accepted accounting standards, admission requirements for second lines of securities, AIM designated market route, dual class share structures, related party transactions and the application of class tests. The paper is open for responses until 16 June 2025.

The London Stock Exchange (LSE) has published Market Notice N06/25, confirming amendments to the International Securities Market (ISM) Rulebook, following its initial consultation (Notice N03/25 from 29 May 2025). These changes, which take effect on 30 June 2025, will clarify existing requirements for expert statements and extend guaranteed bond structure provisions to sukuk instruments (Islamic finance). This consultation marks the first of two planned for 2025, with a second consultation expected to discuss alignment with the Financial Conduct Authority’s new Prospectus Rules. Market participants have responded positively to these technical clarifications. The updated ISM Rulebook will be available on the LSE website from 30 June 2025.

The London Stock Exchange plc (LSE) has published AIM Notice 64 and AIM Notice 65 confirming changes to the AIM Rules for Companies, the AIM Disciplinary Procedures and Appeals Handbook and the AIM Rules for Nominated Advisers which come into effect from 5 August 2026.  Publication of the updated rulebooks follows the consultations launched in June 2026 in AIM Notice 62 and AIM Notice 63.  Feedback on the consultations has also been published.