Disgruntled investment firm TPG-Axon and its affiliates boost their stakes in SandRidge Energy...

|About: SandRidge Energy, Inc. (SD)|By:, SA News Editor

Disgruntled investment firm TPG-Axon and its affiliates boost their stakes in SandRidge Energy (SD) to 6.2% of outstanding shares, according to a new SEC filing, after owning ~4.5% last week when TPG-Axon criticized the performance of SD stock and accused management of "poor strategic planning and reckless spending."