Conseco Inc. (CNO) said Wednesday that Paulson & Co. will purchase up to $200 million of the $293 million of convertible notes the struggling insurer is selling, on top of the hedge fund manager's plan to purchase $77.9 million worth of stock and warrants.

That would give Paulson a 9.9% stake in Conseco. Each $1,000 of the notes will be convertible into 182.1494 shares, or $5.49 each. Conseco has about 185 million shares outstanding.

Shares were up 24% premarket to $6.19 amid the capital-raising efforts, intended to shore up Conseco's balance sheet.

Conseco said Tuesday that the seven-year convertible notes will carry a 7% coupon. They won't be convertible prior to June 2013. The notes are being sold through a private placement.

John Paulson is famous for betting against subprime mortgages and financials in 2007 and some of 2008, making him one of the richest and most successful hedge fund managers in the world. However, Paulson this year turned bullish on at least some financials, buying several, including shares of Bank of America Corp. (BAC) and Regions Financial Corp. (RF) during the second quarter. The move was seen by many as a bullish turn on the sector, and news of the purchases sparked a rally in the shares.

   -By Kevin Kingsbury, Dow Jones Newswires; 212-416-2354; kevin.kingsbury@dowjones.com