The chief executive of Davy stockbrokers has resigned from his position.
The company says it's accepted the resignation of Brian McKiernan as CEO and as a board director.
Two other senior executives at Davy have also resigned.
The firm says all three offered to step down after it was fined over 4 million euro by the Central Bank for breaches of market rules.
An investigation was started after a group of 16 staff members engaged in a personal transaction with a client in November 2014.