(Reuters) -Private equity firm KKR has taken a large stake in Henry Schein and plans to work with the distributor of medical products to improve its operations, the Wall Street Journal reported on Wednesday citing people familiar with the matter.

Shares of the company rose more than 6% to $80.69 premarket after the report.

KKR plans to announce a deal that includes increasing its stake to 12% with the option to buy up to an additional 2.9% in the future, WSJ reported.

Henry Schein has agreed to give the private equity firm two board seats, the report added.

Henry Schein did not immediately respond to a Reuters request for comment.