| Elizabeth Lauren Scott Rose Trust +8 co-filers10% owner · 13 transactions | — | 11.87M†as of Sep 2023 | — | — | 230.5K |
| Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15 +2 co-filers10% owner, Director, 10% owner · 6 transactions | — | 10.76M† | — | — | — |
| Harper Grace Scott Trust +5 co-filers10% owner · 35 transactions | — | 9.15M† | 8.1K | — | 415.2K |
| Scott JeremyDirector, 10% owner · 14 transactions | — | 7.03M† | 2.2K | — | 380.0K |
| Foundation for Community Vitality +6 co-filers10% owner · 4 transactions | — | 6.97M† | — | — | — |
| Homer Scott Jr Trust, Homer Scott Jr. & First Interstate Wealth Management Co Trustees +2 co-filers10% owner · 5 transactions | — | 5.96M†as of Sep 2023 | — | — | — |
| Scott Risa Kae10% owner · 5 transactions | — | 4.69M†as of May 2021 | — | — | — |
| Scott Randall IDirector, 10% owner · 37 transactions | — | 4.49M†as of Sep 2019 | 22.1K | — | 153.2K |
| Foundation for Community Vitality +6 co-filers10% owner, Director, 10% owner · 21 transactions | — | 4.41M†as of Dec 2024 | 10.3K | — | 6.2K |
| Heyneman John M Jr +4 co-filersDirector, 10% owner, 10% owner · 18 transactions | — | 4.35M† | 10.9K | — | 45.4K |
| Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15 +2 co-filers10% owner, Director, 10% owner · 2 transactions | — | 3.49M†as of Jun 2025 | 2.9K | — | — |
| Harper Grace Scott Trust +4 co-filers10% owner, Director, 10% owner · 7 transactions | — | 3.05M†as of Jun 2022 | 1.6K | — | 22.9K |
| Elizabeth Lauren Scott Rose Trust +8 co-filers10% owner · 1 transaction | — | 2.94M†as of Mar 2022 | — | — | — |
| Exempt Thomas W Scott Marital Trust 2 +3 co-filers10% owner · 1 transaction | — | 2.94M†as of Mar 2022 | — | — | — |
| Elizabeth Lauren Scott Rose Trust +8 co-filers10% owner · 2 transactions | — | 2.92M†as of Mar 2022 | — | — | 12.8K |
| Elizabeth Lauren Scott Rose Trust +9 co-filers10% owner · 5 transactions | — | 2.38Mas of Jun 2023 | — | — | 288.0K |
| Elizabeth Lauren Scott Rose Trust +7 co-filers10% owner · 3 transactions | — | 2.31M†as of Dec 2023 | — | — | 33.4K |
| Scott Thomas W10% owner · 64 transactions | — | 2.22M†as of Jun 2020 | 273.0K | 12.5K | 330.5K |
| Scott James RDirector, 10% owner · 86 transactions | — | 2.11M†as of Dec 2021 | 34.2K | 10.6K | — |
| Scott James R. JrDirector, 10% owner · 28 transactions | — | 2.03M† | 12.3K | — | 65.1K |
| Scott Homer A Jr10% owner · 95 transactions | — | 2.01M†as of Feb 2022 | — | 3.6K | 410.2K |
| Heyneman John M JrDirector, 10% owner · 34 transactions | — | 1.50M† | 23.6K | — | 69.8K |
| Scott Jonathan RDirector, 10% owner · 119 transactions | — | 1.39M†as of Mar 2022 | 145.2K | 3.5K | 267.0K |
| Heyneman Susan Scott +1 co-filer10% owner · 2 transactions | — | 1.29M†as of Jul 2022 | — | — | — |
| Scott Julie A10% owner · 24 transactions | — | 1.06M†as of Mar 2021 | 924 | 5.9K | 34.1K |
| Homer Scott Jr Trust, Homer Scott Jr. & First Interstate Wealth Management Co Trustees10% owner · 1 transaction | — | 950.8Kas of Dec 2023 | — | — | 1.00M |
| Elizabeth Lauren Scott Rose Trust +6 co-filers10% owner · 3 transactions | — | 830.0Kas of May 2024 | — | — | 164.0K |
| Heyneman Susan Scott10% owner · 16 transactions | — | 724.7K†as of Feb 2021 | — | — | 182.9K |
| Elizabeth Lauren Scott Rose Trust +4 co-filers10% owner · 9 transactions | — | 493.4K | — | — | 387.7K |
| Risa K Scott TTEE Risa K Scott Trust Dtd 12/4/15 +2 co-filers10% owner · 1 transaction | — | 486.6K†as of Mar 2022 | — | — | — |
| Scott Geoffrey D10% owner · 4 transactions | — | 467.3K† | — | — | — |
| Riley Kevin PPresident & CEO, Director · 141 transactions | — | 395.0K†as of Aug 2024 | 226.1K | 115.5K | 39.4K |
| Garding EdPres. & CEO · 52 transactions | — | 316.0K†as of May 2015 | 82.5K | 4.8K | 39.5K |
| First Interstate Bank TTEE for Dana S Andersson GST Exempt Trust No 1 Dtd 12/11/2020 +2 co-filers10% owner, Director, 10% owner · 14 transactions | — | 307.8K†as of Jun 2025 | 5.0K | — | 30.0K |
| Knight Lyle RPresident & CEO, Director · 10 transactions | — | 299.8K†as of Feb 2011 | 7.5K | 1.4K | — |
| Susan Scott Heyneman Trust, Susan Heyneman & First Interstate Wealth Management Co-Trustees10% owner · 9 transactions | — | 224.5K | — | — | 150.0K |
| Heyneman Charles MDirector · 22 transactions | — | 189.0K†as of Dec 2016 | 5.0K | 1.6K | 17.2K |
| Moore Terrill RExec. Vice President & CFO · 49 transactions | — | 163.0K†as of Jul 2013 | 15.9K | 1.5K | 17.7K |
| Crum David HDirector · 37 transactions | — | 156.2K†as of Jun 2017 | 27.1K | 8.3K | — |
| Payne Terry WDirector · 7 transactions | — | 148.9K†as of May 2012 | 3.5K | 11.0K | — |
| Ebzery William BDirector · 59 transactions | — | 147.6K†as of Feb 2019 | 30.0K | 14.3K | — |
| Haugh James WDirector · 10 transactions | — | 116.3K†as of Aug 2013 | 4.1K | — | 2.3K |
| Reuter James APresident and CEO, Director · 4 transactions | — | 86.9K | 92.0K | — | — |
| Risa K Scott Grantor Retained Annuity Trust Dtd 5/19/24 +3 co-filers10% owner · 2 transactions | — | 72.0K | — | — | — |
| Mutch Marcy DExec. Vice Pres. & CFO · 34 transactions | — | 71.2K†as of Mar 2025 | 72.3K | 5.5K | — |
| Cerkovnik Robert MSr VP & Chief Credit Officer · 26 transactions | — | 65.5K†as of Jan 2016 | 16.1K | — | — |
| Huston Michael G.Ex. VP & Chief Banking Officer · 30 transactions | — | 62.2K†as of Sep 2015 | 28.8K | — | 6.2K |
| Suzor Sandra A ScottDirector · 22 transactions | — | 56.2K†as of Mar 2020 | 2.5K | 3.2K | 36.6K |
| Henning Thomas EdwardDirector · 5 transactions | — | 51.1K†as of Jun 2024 | 27.1K | — | — |
| Knieriem Karlyn MEVP, Chief Risk Officer · 10 transactions | — | 45.9K†as of Mar 2024 | 30.1K | — | 2.9K |
| Jensen Kirk DGeneral Counsel · 39 transactions | — | 35.0K | 44.2K | 1.0K | — |
| Jahnke David LDirector · 16 transactions | — | 31.5Kas of Jun 2025 | 27.5K | — | — |
| Rykhus Daniel ADirector · 7 transactions | — | 31.4K | 31.4K | — | — |
| Della Camera DavidChief Financial Officer · 3 transactions | — | 30.0K | 9.6K | — | — |
| Grieb Frances PallasDirector · 6 transactions | — | 29.7K†as of Jun 2024 | 29.7K | — | — |
| Corning Steven JDirector · 12 transactions | — | 27.2K†as of Apr 2020 | 12.0K | 2.6K | — |
| Kanning Jolyn M.Chief Risk Officer · 1 transaction | — | 27.1K† | 2.2K | — | — |
| Hart Charles EDirector · 20 transactions | — | 26.3Kas of May 2020 | 17.7K | 1.4K | 973 |
| Guenthner KevinSVP & Chief Infor. Officer · 56 transactions | — | 25.8K†as of Mar 2018 | 31.6K | 150 | 20.5K |
| Erkonen Scott EdwardEVP, Chief Information Officer · 6 transactions | — | 24.2K†as of May 2023 | 13.9K | — | — |
| Bowman BiffDirector · 7 transactions | — | 24.0K | 24.0K | — | — |
| Moss Patricia LDirector · 11 transactions | — | 23.2K†as of Jun 2025 | 16.1K | — | 465 |
| Lacy Stephen MarkDirector · 6 transactions | — | 22.8Kas of Jun 2025 | 22.8K | — | — |
| Gottwals William D.EVP and Chief Banking Officer · 3 transactions | — | 22.0K†as of Mar 2017 | 5.3K | 13.6K | — |
| Castle Julie GPresident, Financial Services · 18 transactions | — | 21.9K†as of May 2011 | 13.6K | 2.5K | 1.8K |
| Nance Robert LDirector · 2 transactions | — | 20.9Kas of Sep 2007 | — | 1.2K | — |
| Asker Lorrie FChief Banking Officer · 12 transactions | — | 20.8Kas of Mar 2025 | 15.2K | — | 1.9K |
| Hubbell Jodi DelahuntChief Operating Officer · 16 transactions | — | 20.7Kas of Mar 2022 | 27.5K | — | — |
| Johnson Dennis LDirector · 10 transactions | — | 19.5K | 18.3K | — | — |
| Robbins KristinaEVP, Chief Operations Officer · 21 transactions | — | 18.9K | 21.6K | — | 2.7K |
| Meyer LoriEVP, Chief Information Officer · 12 transactions | — | 17.7K† | 12.8K | — | — |
| Boschee Ryan J.Chief Credit Officer · 1 transaction | — | 16.8K | 2.2K | — | — |
| White Martin ADirector · 6 transactions | — | 16.3K†as of May 2011 | 1.3K | 2.5K | — |
| Calahan David RRegional Pres., Bank Sub. · 4 transactions | — | 16.3Kas of Apr 2007 | 97 | — | 900 |
| Cho Alice SDirector · 7 transactions | — | 15.8K | 15.8K | — | — |
| Phillips Joyce AnnDirector · 7 transactions | — | 14.6K | 14.6K | — | — |
| Asker LorrieChief Banking Officer · 8 transactions | — | 14.2K†as of May 2023 | 7.1K | — | — |
| Shepler Christopher L.Chief Banking Officer · 4 transactions | — | 13.2K | 13.2K | — | — |
| Brannen JamesDirector · 5 transactions | — | 11.8Kas of Jun 2023 | 21.1K | — | 9.3K |
| Williams Theodore HDirector · 16 transactions | — | 11.6K†as of Jun 2017 | 6.1K | 4.1K | — |
| Yose Stephen W.EVP & Chief Credit Officer · 3 transactions | — | 10.3Kas of Apr 2017 | 11.0K | — | — |
| Leckie Ross E.Director · 50 transactions | — | 9.7Kas of Jun 2022 | 20.1K | 12.7K | 36.9K |
| Crandall Dana LDirector · 9 transactions | — | 9.7Kas of Jun 2021 | 9.7K | — | — |
| Lee Russell AEVP & Chief Banking Officer · 9 transactions | — | 8.8K†as of Nov 2022 | 5.1K | 1.0K | 3.9K |
| Taylor TeresaDirector · 9 transactions | — | 7.8Kas of Jun 2019 | 7.8K | — | — |
| Sullivan Michael J/CoDirector · 15 transactions | — | 7.5K†as of May 2016 | 8.9K | 2.9K | — |
| Duncan Gregory AChief Banking Officer · 8 transactions | — | 6.2K†as of Feb 2010 | 2.7K | 1.6K | — |
| Cook Keith DRegional Pres., Bank Sub. · 13 transactions | — | 5.5Kas of Mar 2008 | 87 | 10 | 2.2K |
| Peterson Kade GChief Information Officer · 9 transactions | — | 4.9Kas of May 2021 | 5.8K | — | — |
| Dorn Richard ADirector · 4 transactions | — | 4.7Kas of Sep 2008 | 133 | 500 | — |
| Jones Robert AExecutive Vice President · 15 transactions | — | 4.7K†as of Jan 2008 | 127 | 138 | 32.3K |
| Hayslip AshleyEVP, Chief Banking Officer · 1 transaction | — | 4.5Kas of Nov 2022 | 4.5K | — | — |
| Newman ReneeEVP and Chief Strategy Officer · 6 transactions | — | 4.3Kas of Feb 2021 | 7.5K | — | — |
| Scudder Michael LDirector · 2 transactions | — | 4.1K | 4.1K | — | — |
| Agrawal RenuDirector · 2 transactions | — | 4.1K | 4.1K | — | — |
| Cook Ralph KSenior Vice President · 22 transactions | — | 3.9K†as of Mar 2009 | 1.1K | 1.4K | 18.3K |
| Jones Nathan RChief Risk Officer · 1 transaction | — | 3.8K | 3.8K | — | — |
| Pasco Ronald JRegional Pres., Bank Sub. · 12 transactions | — | 3.7K†as of Jan 2008 | 79 | — | 12.7K |
| Wold Peter IDirector · 5 transactions | — | 3.7Kas of Jun 2019 | 2.5K | 1.0K | — |
| Gaglia Philip GChief Risk Officer · 34 transactions | — | 2.8K†as of May 2022 | 16.0K | — | 11.3K |
| Huppert William ARegional President, Bank Sub · 7 transactions | — | 2.5Kas of Nov 2007 | 58 | 52 | 1.2K |
| Cobell Elouis CDirector · 3 transactions | — | 379as of Sep 2008 | 129 | 10 | — |
| Klusmann Neil WSenior Vice President · 4 transactions | — | 0as of Mar 2008 | — | — | — |