FIRST INTERSTATE BANCSYSTEM, INC. (NASDAQ:FIBK) Files An 8-K Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

Item5.02

(b)On May24, 2017, David H. Crum notified First Interstate
BancSystem, Inc. (the Company) that he was retiring as a Director
of the Company effective upon the adjournment of the Board of
Directors meeting on July20, 2017. His retirement is not related
to a disagreement with the Company on any matter relating to the
Companys operations, policies or practices.

On May24, 2017, the Company held its Annual Meeting of
Shareholders (the Annual Meeting).

At the Annual Meeting, the following proposals were considered
and voted on, and the final voting results for each proposal are
set forth below:

1. Proposal to approve and adopt the Agreement and Plan of
Merger, dated November17, 2016, by and between the Company and
Cascade Bancorp, to which Cascade Bancorp will merger with and
into the Company.

2. Proposal to approve the amended and restated articles of
incorporation of the Company.

3. Proposal to elect as directors the nominees proposed by the
board of directors of the Company to three-year terms, or until
their respective successors have been elected and qualified.

4. Proposal to approve a non-binding advisory resolution on
executive compensation.

5. Proposal to approve a non-binding advisory vote on the
frequency of future advisory votes on executive compensation.

6. Proposal to ratify the appointment of RSM US LLP as the
independent registered public accounting firm for the Company for
the year ending December31, 2017.

7. Proposal to approve the amended and restated bylaws of the
Company.

Because the merger agreement proposal was approved, a proposal to
adjourn the Annual Meeting to solicit additional proxies if there
were insufficient votes at the time of the Annual Meeting to
approve the merger agreement proposal was not needed and,
therefore, no vote was taken on that proposal.

On May24, 2017, the Company and Cascade Bancorp issued a joint
press release announcing the results of the Annual Meeting of the
Company, the results of the Special Meeting of Cascade Bancorp,
and the anticipated timing for completing the merger. A copy of
the joint press release is filed as Exhibit 99.1 to this Current
Report on Form 8-K and is incorporated by reference into this
Item 8.01.

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 down -0.40 at 36.15 with 128,880 shares trading hands.