Skip to main content
  • SECTORS
    • INVESTMENT FIRMS
      • Asset Managers
      • Brokers
      • Hedge Funds
      • Investment Advisory
      • Private Equity
      • Wealth Management
    • DIGITAL FINANCE
      • Authorised Payment Institutions
      • Electronic Money Institutions
      • Cryptocurrency
      • Open Banking
      • Money Remittance
    • CONSUMER FINANCE AND INSURANCE
      • Automotive Dealers
      • Claims Management Companies
      • Consumer Credit Lenders
      • Credit Brokers
      • Debt Management & Collection
      • Funeral Planning Companies
      • Insurance Intermediaries
      • Mortgage Intermediaries
  • SOLUTIONS
    • AUTHORISATIONS
      • FCA Authorisation
      • SEC Registration
      • 5MLD Registration
      • Change in control
      • Variation of permission
    • COMPLIANCE ADVISORY
      • Compliance health checks & audits
      • Ongoing support
      • Policy & procedure frameworks
      • Consumer Duty
      • SM&CR
      • Safeguarding audits
      • Operational resilience
    • FINANCIAL CRIME
      • Advisory services
      • Audits and assurance
      • Risk assessments
      • Fraud prevention
    • FINANCIAL RESILIENCE
      • IFPR compliance
      • ICARA
      • Financial forecasting
      • Regulatory capital & liquidity
      • Wind-down planning
    • REGULATORY REPORTING
      • Annex IV
      • RegData reporting
      • FCA notifications & attestations
    • TRAINING
      • Financial Crime training
      • FCA Compliance training
      • SM&CR training
      • Consumer Duty training
      • GDPR training
      • SEC training
      • CASS training
  • TECHNOLOGY
  • Resources
    • ALL RESOURCES
    • ARTICLES
    • EVENTS
    • FACTSHEETS
    • PRESS
  • ABOUT
    • Our Company
      • Our Culture
      • Our Values
      • Learning & Development
      • Corporate Social Responsibility
      • Meet our Team
      • Our People
    • Our Purpose
      • Rule the Rules
    • Current Opportunities
      • Our Perks
    • Contact Us
  • LOGIN
    • CMP+
    • MyCosegic
  • SECTORS
    Back
    • INVESTMENT FIRMS
      Back
      • INVESTMENT FIRMS
      • Asset Managers
      • Brokers
      • Hedge Funds
      • Investment Advisory
      • Private Equity
      • Wealth Management
    • DIGITAL FINANCE
      Back
      • DIGITAL FINANCE
      • Authorised Payment Institutions
      • Electronic Money Institutions
      • Cryptocurrency
      • Open Banking
      • Money Remittance
    • CONSUMER FINANCE AND INSURANCE
      Back
      • CONSUMER FINANCE AND INSURANCE
      • Automotive Dealers
      • Claims Management Companies
      • Consumer Credit Lenders
      • Credit Brokers
      • Debt Management & Collection
      • Funeral Planning Companies
      • Insurance Intermediaries
      • Mortgage Intermediaries
  • SOLUTIONS
    Back
    • AUTHORISATIONS
      Back
      • AUTHORISATIONS
      • FCA Authorisation
      • SEC Registration
      • 5MLD Registration
      • Change in control
      • Variation of permission
    • COMPLIANCE ADVISORY
      Back
      • COMPLIANCE ADVISORY
      • Compliance health checks & audits
      • Ongoing support
      • Policy & procedure frameworks
      • Consumer Duty
      • SM&CR
      • Safeguarding audits
      • Operational resilience
    • FINANCIAL CRIME
      Back
      • FINANCIAL CRIME
      • Advisory services
      • Audits and assurance
      • Risk assessments
      • Fraud prevention
    • FINANCIAL RESILIENCE
      Back
      • FINANCIAL RESILIENCE
      • IFPR compliance
      • ICARA
      • Financial forecasting
      • Regulatory capital & liquidity
      • Wind-down planning
    • REGULATORY REPORTING
      Back
      • REGULATORY REPORTING
      • Annex IV
      • RegData reporting
      • FCA notifications & attestations
    • TRAINING
      Back
      • TRAINING
      • Financial Crime training
      • FCA Compliance training
      • SM&CR training
      • Consumer Duty training
      • GDPR training
      • SEC training
      • CASS training
  • TECHNOLOGY
  • Resources
    Back
    • ALL RESOURCES
    • ARTICLES
    • EVENTS
    • FACTSHEETS
    • PRESS
  • ABOUT
    Back
    • Our Company
      Back
      • Our Company
      • Our Culture
      • Our Values
      • Learning & Development
      • Corporate Social Responsibility
      • Meet our Team
      • Our People
    • Our Purpose
      Back
      • Our Purpose
      • Rule the Rules
    • Current Opportunities
      Back
      • Current Opportunities
      • Our Perks
    • Contact Us
  • LOGIN
    Back
    • CMP+
    • MyCosegic
Get in touch
Resources — Article — Two brothers plead guilty to six counts of insider dealing

Two brothers plead guilty to six counts of insider dealing

Two brothers plead guilty to six counts of insider dealing
Back to resources
Published on: May 13, 2025 Reading time: 1 min By Daniel Chessher
Get in touch

On the 9th May 2025, Matthew and Nikolas West (“the brothers”) pleaded guilty to insider dealing in the shares of four companies between November 2016 and January 2020 (“the period”), following a prosecution brought by the Financial Conduct Authority (FCA). Matthew West also disclosed inside information to Nikolas West in relation to a fifth company, who in turn used this inside information to deal.

During the period, the brothers acted as day traders via companies that were controlled by them. Through these companies, the brothers deliberately disclosed and used information that was legitimately disclosed to them by brokers after agreeing to be ‘wall-crossed’ to trade.

The total profits obtained from the illegitimate trading activities totalled £42,498.

Steve Smart, Joint Executive Director of Enforcement and Market Oversight at the FCA said “Matthew West repeatedly tried to make a quick profit at the expense of the rest of the market. As professional investors, the brothers clearly knew what they were doing was wrong. Fighting financial crime is a priority for the FCA. We will clamp down hard on those like the brothers who undermine the integrity of UK markets”.

The brothers will be sentenced on 3 July 2025 and face up to 7 years imprisonment.

Key takeaways

  • Market abuse and preserving market integrity continues to be a top priority for the FCA;
  • The FCA has implemented market surveillance tools which have greatly assisted the FCA in identifying potential instances of market abuse;
  • For those firms that receive wall-crossing requests, the controls implemented should be commensurate to the respective inherent risk (i.e. implementing physical and technological separation between staff where possible, having a designated wall-crossing point of contact, PA Dealing approval process which includes reconciliations and cross-checking requests against internal documents such as the Restricted List); and
  • Firms should consider revisiting the appropriateness of their market abuse risk assessments and determine whether any control enhancements are required in light of this enforcement case.

How can Cosegic help?

  • Review your firms market abuse governance and control framework to ensure that it meets the regulatory requirements contained within UK MAR;
  • Review your firms broader compliance governance and control framework, specifically the areas that are linked to market abuse such as PA Dealing; and
  • Review and enhance your firms market abuse risk assessment.

Should you wish to discuss this enforcement case in more detail or how Cosegic can support your firm, please reach out to our in-house Market Abuse Expert, Daniel Chessher via daniel.chessher@cosegic.com.

Don’t just stay abreast. Stay ahead. Subscribe to Cosegic insights.

The author
Daniel Chessher
Daniel Chessher
Daniel Chessher

Daniel is a Director within our Investment Firms team. Daniel joined the firm in December 2023 and is an experienced compliance professional with over 10 years’ experience working in the financial services industry. Daniel supports the Firm’s capital markets clients in a number of different ways, namely authorisation / registrations, ad-hoc regulatory advice, undertaking compliance monitoring reviews and delivering regulatory training.

Get in touch
Contact Us
info@cosegic.com +44 (0)20 7060 4499
Connect with us
© 2026 Cosegic Limited. All rights reserved.
  • Terms and conditions
  • Privacy
  • Cookies
  • Settings