 AMERICAN FORK, UTAH--BUSINESS WIRE--AltabancorpTM Nasdaq: ALTA the Company or Alta announced today the signing of a definitive agreement with Glacier Bancorp, Inc. Glacier or the Company Nasdaq: GBCI to acquire Alta, the bank holding company for AltabankTM, a community bank headquartered in American Fork, Utah. The acquisition marks Glaciers 24th announced acquisition since 2000 and its 7th announced transaction in the past five years. This also marks Glaciers second acquisi 