On December 23, 2016, Peter I. Wold accepted an appointment to the Board of Directors (the “Board”) of First Interstate BancSystem, Inc. (the “Registrant”), to serve until the Registrant’s next annual meeting of shareholders in May 2017, at which time he will be included as a nominee for election to serve a three-year term, or until his successor has been elected and appointed.

Mr. Wold will serve on the Audit Committee of the Board and will participate in the standard non-management director compensation arrangements. Under these arrangements, Mr. Wold will receive a pro-rated annual retainer valued at $20,000. Mr. Wold may elect to receive $8,333 of the annual retainer in the form of Class A common stock, with the remainder to be paid in cash.

Mr. Wold brings experience and knowledge in several industries integral to the economies throughout the Registrant’s operational footprint, including oil and gas, coal, industrial minerals and cattle ranching. Mr. Wold has been the president of Wold Oil Properties, LLC, an exploration and production company with primary operations in the Rocky Mountain states, since 1993, and president of Wold Energy Partners, LLC, since 2013. Mr. Wold is also the managing partner of a cattle ranch located in Wyoming. Mr. Wold was a director and chairman of the Denver, Colorado branch of the Federal Reserve Bank of Kansas City from 1993 through 1999, commissioner and chairman of the Wyoming Enhanced Oil Recovery Institute from 2003 though 2012, director of the New York board of Oppenheimer Fund, Inc., a mutual fund company, from 2002 through 2015, a director of Arch Coal Inc. from 2010 through 2016 and a director of American Talc Company from 2000 through the present.

About FIRST INTERSTATE BANCSYSTEM, INC. (NASDAQ:FIBK)

First Interstate BancSystem, Inc. is a financial and bank holding company. The Company, through its bank subsidiary First Interstate Bank (the Bank), delivers a range of banking products and services to individuals, businesses, municipalities and other entities. The Company operates through community banking segment. Its community banking segment provides customers with commercial and consumer banking products and services in its market areas through community service activities. The Company also offers Internet and mobile banking services. In addition to its primary emphasis on commercial and consumer banking services, the Company also offers trust, employee benefit, investment and insurance services through its bank subsidiary. It operates approximately 80 banking offices, including detached drive up facilities, in over 40 communities located in Montana, Wyoming and western South Dakota.

FIRST INTERSTATE BANCSYSTEM, INC. (NASDAQ:FIBK) Recent Trading Information

FIRST INTERSTATE BANCSYSTEM, INC. (NASDAQ:FIBK) closed its last trading session up +0.12 at 42.67 with 146,668 shares trading hands.