(Sharecast News) - First Derivatives announced on Friday that its chief executive officer Brian Conlon has recently been diagnosed with cancer.The AIM-traded firm said Conlon would remain at his post during his ongoing weekly treatment, which included chemotherapy.It said the treatment was expected to last a number of months."The board has set a clear strategy and the executive committee, led by Brian, has delivered strong execution of that strategy year-on-year," said First Derivatives chairman Seamus Keating."During the period of his treatment I will provide additional executive and governance support and I am confident that Brian and his team will continue to execute the group's growth plans successfully."