The three US hedge funds that this week failed to oust Charter Hall Group as the responsible entity of Charter Hall Office have pledged to maintain their co-operation agreement for a further three months. Orange Capital, Point Lobos Capital and Luxor Capital control 19.3 per cent of the trust.Ainslie Chandler

Funds manager Mariner Corporation has lodged a takeover bid for listed group Viento at 17¢ a share. Mariner said the offer was at a 26 per cent premium to the trading price when the bid was lodged. The company had completed a bookbuild to fund the takeover, Mariner chief executive Darren Olney-Fraser said. Viento has a market capitalisation of about $7.6 million and the bid values the company at $9.25 million. Mariner already holds 8.9 per cent of the company’s stock. Viento said the offer was unsolicited and it had not been in discussions with Mariner. Viento appointed Arnold Bloch Leibler as its advisor. Ainslie Chandler