Bloomberg reported that JPMorgan Chase sued the executive responsible for supervising Bruno Iksil, the trader nicknamed the London Whale, for market-moving wagers at the division responsible for a $6.2 billion trading loss.

According to Bloomberg, Javier Martin-Artajo, Iksil’s boss in the chief investment office, is a defendant in a London lawsuit filed October 22 by the bank. The court filings didn’t reveal any details of the complaint. Both men have left the bank.

To read the full Bloomberg article click here.

Previously on monitordaily Bloomberg: JPMorgan Said to Face Escalating Senate Probe, published September 7, 2012