UPDATE 3-Qatar Airways ups holding in BA-owner IAG to 25.1% with new $600 mln stake <!-- no image --> <div>* Latest deal by acquisitive Middle Eastern airline (Adds shares)<div class="feedflare"> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=iG1O0J9ERCg:9G87vwOUY_Q:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?d=yIl2AUoC8zA" border="0"></a> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=iG1O0J9ERCg:9G87vwOUY_Q:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?i=iG1O0J9ERCg:9G87vwOUY_Q:V_sGLiPBpWU" border="0"></a> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=iG1O0J9ERCg:9G87vwOUY_Q:F7zBnMyn0Lo"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?i=iG1O0J9ERCg:9G87vwOUY_Q:F7zBnMyn0Lo" border="0"></a> </div><img src="http://feeds.feedburner.com/~r/reuters/UKBankingFinancial/~4/iG1O0J9ERCg" height="1" width="1" alt=""></div> Posted by Reuters