** Regional lender Simmons First National's SFNC.O shares down 5.4% at $19 premarket
** SFNC sold 16.2 million shares at $18.50 apiece for gross proceeds of $300 million
** Bank had initially planned on raising $250 million in the follow-on stock offering
** Stock offering priced at 7.9% discount to the last close
** Proceeds will be used for general purposes, including potential balance sheet repositioning
** Bank is mulling dumping over $3 billion of low-yielding securities to bolster earnings profile
** Stephens, Keefe, Bruyette & Woods and Morgan Stanley were the joint book-running managers for the offering
** 1 of 6 brokerages rate the stock "strong buy" and 5 "hold"; median PT $22 - data compiled by LSEG
** As of last close, SFNC stock down 9.5% YTD
(Reporting by Arasu Kannagi Basil in Bengaluru)
((ArasuKannagi.Basil@thomsonreuters.com;))