Far too many private equity firms are failing to comply with merger filing requirements, an official from the Department of Justice’s antitrust division has said. Speaking at GCR Live: Law Leaders Global on Thursday, Antitrust & Competition co-chair Arman Oruc said that while private equity deals were at one point considered “antitrust risk-free”, they have a lot more work to do now. Although the horizontal merger guidelines are well-accepted and facilitate private equity transactions, the politicisation of private equity – such as Senator Elizabeth Warren labelling the firms “vampires” – makes what could be a straightforward clearance process more complex, Oruc added.