Finance and insurance company Dorchester Pacific said it had entered into an unconditional sale and purchase agreement to acquire the 18.2 per cent shareholding in Turners Auctions held by interests associated with Milford Asset Management for $9.07 million, or $1.82 per share.
A deposit of 5c per share has been paid on the execution of the agreement, with the balance of $1.77 per share payable on June 20, Dorchester said.
Shares in Turners Auctions last traded at $1.79, down 1c.
Dorchester's chief executive Paul Byrnes said the Turners Auctions board had indicated he would be welcome on the board.
"There is a natural alignment between Dorchester and Turners Auctions," Byrnes said in a statement.