There's more information and a good discussion going on in the KCG Connects LinkedIn group. This is a closed group only open to AR professionals but if you're not already a member it's worth asking Stephen England or Bill Hopkins from KCG if you can join.
"On April 9, 2014, the Company announced a reduction in its workforce of approximately 1% of its employees across various geographies and functions. This action was approved by the Company on March 31, 2014. Notification to affected persons commenced on April 9, 2014 and is expected to be completed by April 25, 2014. The Company expects to incur pre-tax expenses of $1.4 million to $1.7 million in the first and second quarters of 2014 related principally to cash severance and related benefit costs for terminated employees."