This Resource Note outlines the main provisions of Rules 12, 13, 14, 15 and 16 of the AIM Rules for Companies (AIM Rules), which deal with the disclosure of corporate transactions by an AIM company. It highlights relevant materials, commentary and guidance from the London Stock Exchange (LSE), as well as Lexis+® UK analysis and resources, to give practical guidance on the interpretation and application of Rules 12, 13, 14, 15 and 16 of the AIM Rules. Material covered in this Resource Note include: • the AIM Rules • the AIM Rules for Nominated Advisers (Nomad Rules) • Inside AIM, the periodic publication from the AIM Regulation team • AIM Notices, which are issued periodically, and contain information on AIM regulatory and administrative matters • Lexis+® UK and Lexis®Library resources. Setting the scene • Rulebook: AIM Rules for Companies • What it covers: Rules 12 to 16 contain the disclosure and other requirements an AIM company must comply with when it undertakes a corporate transaction.