UPDATE 2-SoftBank unveils $4.8 bln buyback after stock tumble, pressure from Elliott <!-- no image --> <div>* Buyback will begin on Monday and will take place over a year<div class="feedflare"> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=SWP4r9KdIbY:QDY-I1Z6OLI: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=SWP4r9KdIbY:QDY-I1Z6OLI:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?i=SWP4r9KdIbY:QDY-I1Z6OLI:V_sGLiPBpWU" border="0"></a> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=SWP4r9KdIbY:QDY-I1Z6OLI:F7zBnMyn0Lo"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?i=SWP4r9KdIbY:QDY-I1Z6OLI:F7zBnMyn0Lo" border="0"></a> </div><img src="http://feeds.feedburner.com/~r/reuters/UKBankingFinancial/~4/SWP4r9KdIbY" height="1" width="1" alt=""></div> Posted by Reuters