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Dinosaur Merchant Bank Limited

FRN 43621526 Mar 2026Fine · £338,000
01 · In plain English

What happened.

The FCA fined Dinosaur Merchant Bank Limited £338,000 for failing to have effective systems and controls to detect and report suspicious trading in its contracts for difference (CFD) business. A new order system introduced in June 2024 led to a sharp rise in CFD trading (about $3.05bn of trades between June and October 2024) that was not captured by the firm’s automated surveillance; DMBL identified the issue in October 2024 but did not fully remedy it until May 2025 and stopped selling CFDs in May 2025. The FCA found breaches of Article 16(2) of UK MAR (the duty to detect and report suspicious orders/transactions), SYSC 6.1.1R (requirement to maintain adequate systems and controls) and Principle 3 (take reasonable care to organise and control its affairs), and applied a 30% cooperation discount (the fine would have been £482,900 without the discount).

Summarised from the FCA's notice and press reports. The FCA's own text and documents below are the authoritative record.

02 · Enforcement details

What the FCA register says.

Imposing a financial penalty for breach of Article 16 (2) of UK MAR, SYSC 6.1.1R of the Senior Management Arrangements and Principle 3 of the Principles for Businesses
03 · Press coverage

How it was reported.

These links go to other sites. Some may need a subscription.

04 · Firm details

Firm on the FCA register.

Firm name
Dinosaur Merchant Bank Limited
Firm reference number
436215
Register status
Authorised
05 · Source documents

External links.

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