A City of London trader has been arrested by police on suspicion of insider dealing.
A Financial Conduct Authority investigation into market abuse led to the arrest of a 41-year-old man - understood to be Mark Lyttleton, together with a 37-year-old woman in West London on April 30 .
BlackRock [BLK.N] Asset Management said on Tuesday that one of its former employees was arrested in April by City of London police on suspicion of insider dealing.
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