** Regional lender First Interstate BancSystem's FIBK.O shares rise 2.8% to $32.96
** Late Thursday, FIBK unveiled a stock repurchase program of up to $150 million worth of shares through March 31, 2027
** Bank intends to repurchase shares through open market purchases, private transactions and block trades
** FIBK has ~104.9 million outstanding shares as of July 31, per SEC filing
** 4 of 8 brokerages rate the stock "buy" or higher, 3 "hold" and 1 "sell"; median PT $31.50 — data compiled by LSEG
** As of last close, FIBK stock down 1.3% YTD
(Reporting by Arasu Kannagi Basil in Bengaluru)
((ArasuKannagi.Basil@thomsonreuters.com))