FRANKFURT (Reuters) - Investors in subprime-stricken lender IKB (IKBG.DE: Quote, Profile, Research) took a further blow on Monday as details of government plans to rescue and sell the bank stoked uncertainty and wiped a further quarter off the value of the shares.

IKB unveiled details over the weekend of a third bail-out package hammered out with its state owners that would see a six-fold increase in the number of its shares and an emergency 600 million euro ($881 million) cash injection that may have to be paid for out of future profits.

The latest bail-out package, which takes total rescue costs to more than 8 billion euros, has also jeopardised government plans to sell IKB.

Several sources familiar with the situation told Reuters on Monday that a deadline for non-binding offers for the bank, initially set for Monday, had been delayed by at least a week to give potential bidders a chance to study the restructuring deal.

German state development bank KfW [KFW.UL], which is collecting bids for IKB, declined to comment.

Several analysts confirmed their sell ratings on the share following the details of the cash capital increase and one-for-six share subscription ratio that will take IKB's total shares to about 580 million from around 90 million currently.

"This is the final blow for all investors who were hoping to gain something from the government rescue package," Landsbanki Kepler analyst Dirk Becker said in a note to clients, cutting his target price to 1.80 euros per share from 6.10 previously.

IKB shares were down 24.4 percent to 5.10 euros by 1520 GMT, having sunk to 4.98, compared with a 1.5 percent gain in the German mid-cap index.

HAEMORRHAGING MONEY