Barclays PLC, the U.K.'s fourth-biggest bank, said existing shareholders bought £753 million (about $1.5 billion), or 17 percent, of the shares on sale in its £4.5 billion stock offer.

Sumitomo Mitsui Financial Group Inc., Japan's third-largest bank, bought £500 million in shares and the rest will go to investors, including Qatar Investment Authority, the London-based bank said in a statement Friday.

Sumitomo bought 169 million shares at 296 pence apiece, while sovereign funds and other backers pledged to buy stock that existing shareholders didn't want.