On 2 August 2016, the LSE issued a statement regarding the amendment of the AIM Rules with respect to the FCA's supervisory role in relation to closed periods and preliminary results under MAR. Following ESMA's guidance published on 13 July 2016, the LSE noted that it viewed any amendment to the AIM Rules as unnecessary.
The LSE has also published FAQs on MAR, which address a number of issues that arise from the overlapping market abuse rules that AIM companies face, both under MAR and under certain provisions of the AIM Rules for Companies (e.g. those requiring disclosure of price sensitive information without delay (c.f. to the MAR requirement for the disclosure of inside information promptly) and those requiring an AIM company to have in place a "reasonable and effective dealing policy" (c.f. to the MAR requirement that directors and certain other senior managers do not deal in issuer securities during "closed periods")).
These FAQs are available here:
http://www.londonstockexchange.com/companies-and-advisors/aim/faq/mar-faqs.htm
The content of this article is intended to provide a general guide to the subject matter. Specialist advice should be sought about your specific circumstances.