Private-equity firm TPG launched its roadshow pitch to investors Tuesday, seeking a valuation as high as $9.5bn in its initial public offering, moving into the final stretch of a process that has been months in the making.

The firm and some of its shareholders are aiming to sell shares at between $28 and $31 apiece, it said in a regulatory filing on 4 December. It plans to trade on the Nasdaq under the ticker symbol "TPG."