| SC 13G/A | 2013-02-13 | SCOTT JULIE A | FIRST INTERSTATE BANCSYSTEM INC | 983,436 | 5.3% | EDGAR |
| SC 13G/A | 2013-02-07 | HEARTLAND ADVISORS INC | FIRST INTERSTATE BANCSYSTEM INC | 1,290,406 | 7.6% | EDGAR |
| SC 13G/A | 2012-02-14 | LEGG MASON CAPITAL MANAGEMENT LLC | FIRST INTERSTATE BANCSYSTEM INC | 1,198,241 | 7.3% | EDGAR |
| SC 13G/A | 2012-02-14 | LEGG MASON CAPITAL MANAGEMENT INC | FIRST INTERSTATE BANCSYSTEM INC | 1,198,241 | 7.3% | EDGAR |
| SC 13G | 2012-02-14 | FMR LLC | FIRST INTERSTATE BANCSYSTEM INC | 1,021,080 | 6.2% | EDGAR |
| SC 13D/A | 2012-02-13 | SCOTT RANDALL I | FIRST INTERSTATE BANCSYSTEM INC | 4,433,936 | 21.2% | EDGAR |
| SC 13G/A | 2012-02-13 | HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | FIRST INTERSTATE BANCSYSTEM INC | 797,182 | 4.9% | EDGAR |
| SC 13G/A | 2012-02-13 | Scott Jonathan R | FIRST INTERSTATE BANCSYSTEM INC | 981,090 | 5.6% | EDGAR |
| SC 13G/A | 2012-02-13 | SCOTT JULIE A | FIRST INTERSTATE BANCSYSTEM INC | 998,672 | 5.7% | EDGAR |
| SC 13G/A | 2012-02-13 | FIRST INTERSTATE BANK | FIRST INTERSTATE BANCSYSTEM INC | 7,685,324 | 34.2% | EDGAR |
| SC 13G/A | 2012-02-10 | HEARTLAND ADVISORS INC | FIRST INTERSTATE BANCSYSTEM INC | 1,258,657 | 7.7% | EDGAR |
| SC 13G/A | 2012-01-24 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | FIRST INTERSTATE BANCSYSTEM INC | 0 | 0.0% | EDGAR |
| SC 13G | 2011-02-15 | LEGG MASON CAPITAL MANAGEMENT INC | FIRST INTERSTATE BANCSYSTEM INC | 1,215,668 | 7.9% | EDGAR |
| SC 13G | 2011-02-14 | HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | FIRST INTERSTATE BANCSYSTEM INC | 825,927 | 5.4% | EDGAR |
| SC 13G/A | 2011-02-10 | HEARTLAND ADVISORS INC | FIRST INTERSTATE BANCSYSTEM INC | 1,474,872 | 9.6% | EDGAR |
| SC 13G/A | 2011-02-07 | FIRST INTERSTATE BANK | FIRST INTERSTATE BANCSYSTEM INC | 8,034,655 | 36.8% | EDGAR |
| SC 13G | 2011-02-07 | Scott Jonathan R | FIRST INTERSTATE BANCSYSTEM INC | 972,985 | 5.9% | EDGAR |
| SC 13G | 2011-02-07 | SCOTT JULIE A | FIRST INTERSTATE BANCSYSTEM INC | 995,264 | 6.0% | EDGAR |
| SC 13G | 2011-02-04 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | FIRST INTERSTATE BANCSYSTEM INC | 924,068 | 6.0% | EDGAR |
| SC 13D | 2011-02-02 | SCOTT RANDALL I | FIRST INTERSTATE BANCSYSTEM INC | 4,444,444 | 22.5% | EDGAR |