Samsung SDI said on Friday it will sell 13.09 million shares in affiliate Samsung Display to the display maker for about 4.45 trillion won ($3.21 billion), to raise funds for investments in future growth engines. Samsung Display plans to buy the shares as treasury stock at 340,000 won each, Samsung SDI said in a regulatory filing. The transaction is scheduled to close on August 27, though the final number of shares and value could change during the repurchase process.