Suspicious transaction and order reports

Firms and individuals professionally arranging or executing transactions in certain financial instruments, and operators of a trading venue, must report suspicious transactions and orders (STORs) to us without delay.

A suspicious transaction or order is one where there are ‘reasonable grounds’ to suspect it may constitute market abuse, such as insider dealing or market manipulation.

Firms and trading venues should ensure that staff, especially those responsible for managing financial crime risks, get effective training to identify potentially suspicious transactions and orders.

The Market Abuse Regulation (MAR) took effect on 3 July 2016 and extends the scope of the UK market abuse framework to new markets, new platforms and new behaviours.

MAR now also requires firms and trading venues to report suspicious ‘orders’ as well as ‘transactions’, and ‘attempted market abuse’. These reports are ‘suspicious transaction and order reports’ (STORs) and there is a new way to submit them to us – see below.

Please note that suspicious activity reports (SARs) are governed by the Proceeds of Crime Act 2002 and the Terrorism Act 2000, and do not fall under our market abuse regime. The National Crime Agency (NCA) has more on SARs.

How to submit a STOR

To report a suspicious transaction or order to us, you will have to log in to Connect and complete the STOR form.

Find out more about how to fill in and submit a STOR using Connect.

Make sure the STOR form is completed, and includes the basis for reporting a suspicious transaction and any other relevant information.

Firms and trading venues with questions about how to complete or submit a STOR can call our STOR helpline on 020 7066 5577 or email However, we cannot advise firms on whether to submit a STOR, as the decision is the responsibility of firms.

See further information on how consumers and other members of the public can contact us  or report market abuse.

Number of STRs received

See how many suspicious transaction reports we received in the past year. This will be updated in February each year.

Market Watch

Our Market Watch newsletter looks at suspicious transaction and order reporting, market abuse risks, transaction reporting, and other market conduct issues.

See all editions of Market Watch.