AIM Regulation has published an Inside AIM update confirming its position on the question of whether the 30-day closed period requirement under MAR means that issuers that announce preliminary results need to impose closed periods before the announcement of preliminary results, before publication of the year-end report, or both. AIM Regulation refers AIM companies to ESMA's updated Q&A on MAR which included a question on this matter which mirrors the approach of the FCA (as reported in last week’s Legal Shorts). AIM Regulation does not propose to amend the AIM Rules but continues to support the use of Listing Rule 9.7A.1 (preliminary statement of annual results) by AIM companies as a benchmark in relation to the preparation of a preliminary results announcement.