The Financial Conduct Authority (FCA) and North and West Yorkshire police have this morning arrested one male on suspicion of insider dealing and market abuse.
The arrest of the 49 year old man was in Harrogote. He "is currently in custody to be questioned in connection with an investigation into insider dealing and market abuse", the FCA said.
It added:"No further details can be confirmed at this time and no individuals have been charged. The arrests are not linked to any other ongoing insider dealing investigation.
"Insider dealing is a criminal offence that is punishable by a fine or up to seven years imprisonment."
The FCA, and previously the Financial Services Authority, have secured 23 convictions in relation to insider dealing since March 2009.
The regulator is currently prosecuting seven other individuals for insider dealing - Martyn Dodgson, Andrew Hind, Benjamin Anderson, Iraj Parvizi, Richard Baldwin, Graeme Shelley and Grant Harrison - their trial dates are still to be confirmed.
Cautious, Balanced & Dynamic Growth
Cowardly, boring or sensible
Latest news and analysis
‘Most significant’ upgrade since launch
Changes happening over coming months