LONDON, Dec 5 Reuters Barclays shares fell on Tuesday after one of the bank39;s largest shareholders Qatar Holding moved to sell around 510 million pounds 644 million of stock, cutting back on its crisisera investment in the bank.

Shares were sold at 141 pence at around 2120 GMT on Monday, a source close to the matter told Reuters, implying a 1.4 discount to Barclays39; closing share price on Monday.

The stake on offer equalled about 2.4 of the bank39;s outstanding shares, based on an earlier deal term sheet.

Barclays declined to comment. Qatar Investment Authority, the state sovereign wealth fund which owns Qatar Holding, did not respond to a request for comment.

The share sale comes as Barclays embarks on a shakeup to cut costs and revive its share price, which has halved since Qatar first invested in 2008. It owned nearly 7 of Barclays in 2012.

Barclays39; stock fell as much as 4.5 in morning trading on Tuesday and was last down 2.4 at 1247 GMT.

Investors are parsing what the Qatari move means for Barclays CEO C. S. Venkatakrishnan and his executive team, just weeks before they are expected to unveil a new strategy to restore the bank39;s flagging fortunes.

One institutional shareholder in Barclays told Reuters that the timing looked odd ahead of the bank39;s strategy update in February, but also said that investors often trade for reasons not necessarily related to the underlying performance of the stock in question.

Qatar became Barclays39; largest…