By Charlie Conchie London-listed fintech Equals Group has extended a ‘put-up-or-shut-up’ deadline for a takeover today as it mulls becoming the latest firm to leave London’s markets this year. The AIM-listed payments firm announced it was undertaking a ‘strategic review’ in November and had kicked off talks with US-based private equity group Madison Dearborn partners over a potential sale. In a statement to the market this morning, Equals said it was now extending the talks with the buyout firm as it decides whether to shift back into private hands. “As part of the strategic review, discussion…