** Bitcoin miner Core Scientific's CORZ.O shares fall 6.2% to $16.77 premarket

** CORZ says offering $500 mln convertible bonds due 2031 in a private offering to institutional buyers

** Co plans on using the proceeds for general corporate purposes, including potential acquisitions and securities repurchases

** Stock has soared 73.3% in the past three months

** CORZ has ~$5 bln market capitalization - LSEG data

(Reporting by Arasu Kannagi Basil in Bengaluru)

((ArasuKannagi.Basil@thomsonreuters.com;))