Conversation so far:
What was the SEC insider trading allegations about?
(SEC) filed a civil suit against Cuban relating to alleged insider trading in the shares of Mamma.com, now known as Copernic.
What was Cuban's defense?
Cuban contended the facts were false and that the investigation was "a product of gross abuse of prosecutorial discretion".

Question: When were these allegations brought up?
Self-contained rewrite: When were the insider trading allegations brought up?