Mike Cannon-BrookesPhotographer: Patrick T. Fallon/Bloomberg An Australian billionaire’s success in forcing AGL Ltd. to scrap a breakup plan and its top executives to step down may shake the status quo between shareholders and companies in the region, particularly on climate issues. Atlassian Corp. founder Mike Cannon-Brookes halted demerger plans by AGL — Australia’s biggest producer of scope one greenhouse gases — that would have allowed it to run coal-fired power plants for another two decades. In doing so, he joined a growing number of activist shareholders including Exxon Mobil Corp. investor Engine No. 1 to have successfully fought big polluters using agitator tactics. “Australia has never really taken to shareholder activism like other countries,” Gabriel Radzyminski, Managing Director and Portfolio Manager of Sandon Capital , one of the region’s few public activist funds, said on Monday. “Part of the problem here is the business and investment community is very […]