John Crathern

Watch for changes

Where they hold approval

Firms where this individual holds — or has held — an FCA-approved role.

Sigma Broking Limited
FRN 485362
- [FCA CF] Client dealing (since 1 Oct 2025)
BGC Brokers L.P (no longer approved here)
FRN 454814
- [FCA CF] Client dealing (20 Dec 2023 to 18 Mar 2025)
Marex Spectron International Limited (no longer approved here)
FRN 193027
- [FCA CF] Client dealing (15 May 2023 to 31 Jul 2023)
Marex Financial (no longer approved here)
FRN 442767
- [FCA CF] Client dealing (3 Mar 2021 to 31 Jul 2023)
TFS Derivatives Limited (no longer approved here)
FRN 197244
- CF30 Customer (9 Jul 2019 to 1 Oct 2019)

Updates to this individual's record on the FCA register.

No changes recorded yet.

A quick guide to the terms on this page.

The FCA: The Financial Conduct Authority is the UK's regulator for banking, lending, insurance, investments and payments. Senior staff at any authorised firm have to be approved by the FCA personally.
Approved individual: Someone the FCA has personally signed off to hold a senior role at an authorised firm — directors, compliance officers and similar. They're held accountable for the firm's conduct.
Controlled functions: The specific senior roles the FCA approves people to hold, like 'Compliance oversight' or 'Money laundering reporting'. Each approval is tied to a particular firm.
IRN: Individual Reference Number — the unique ID the FCA assigns to each approved person. It stays the same as they move between firms.

Information on this page is sourced from the official FCA register.