LONDON, Sept 4 (Reuters) - British bank Barclays said on Wednesday it will launch its 5.8 billion pound ($9billion) rights issue, the biggest by a British bank since 2009,on Sept. 13.
The bank is raising the money after Britain's financialregulator said it needed an extra 12.8 billion pounds to cushionit against potential market shocks.
The rights issue will offer existing shareholders one newshare at 185 pence for every four they currently own, a 40percent discount to Barclays' share price on the day before itwas announced.
Barclays expects the new shares to start trading on Oct. 3.
Shares in the bank closed on Tuesday at 285 pence.