According to recent filings covering the 90 days ending December 31, 2025, the three most significant insider holders at First Interstate Bancsystem are Director John M Jr Heyneman (1.42Mn shares), TenPercentOwner Risa Kae Scott (322.55K shares), TenPercentOwner Scott Heyneman Trust, Susan Heyneman & First Interstate Wealth Management Co-Trustees Susan (224.46K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| James R Scott | 4,454,544 | 04 Jun, 2024 | |
| Jeremy Scott | 3,515,395 | 03 Jun, 2025 | |
| Homer A Jr Scott | 1,956,713 | 06 Sep, 2023 | |
| John M Jr Heyneman | 1,419,860 | 18 Aug, 2025 | |
| Jonathan R Scott | 955,138 | 04 Jun, 2024 | |
| Scott Jr Trust, Homer Scott Jr. & First Interstate Wealth Management Co Trustees Homer | 950,753 | 15 Dec, 2023 | |
| Susan Scott Heyneman | 739,256 | 04 Feb, 2021 | |
| Julie A Scott | 615,012 | 18 Nov, 2022 | |
| Risa Kae Scott | 322,546 | 04 Dec, 2025 | |
| James R. Jr Scott | 235,265 | 03 Jun, 2025 | |
| Scott Heyneman Trust, Susan Heyneman & First Interstate Wealth Management Co-Trustees Susan | 224,460 | 01 Dec, 2025 | |
| Geoffrey D Scott | 116,541 | 10 Dec, 2025 | |
| Kevin P Riley | President & Ceo | 76,285 | 02 Aug, 2024 |
| Marcy D Mutch | Exec. Vice Pres. & Cfo | 69,608 | 18 Mar, 2025 |
| James A Reuter | President And Ceo | 60,637 | 18 Mar, 2025 |
| David L Jahnke | 31,501 | 03 Jun, 2025 | |
| Kirk D Jensen | General Counsel | 30,155 | 18 Mar, 2025 |
| Frances Pallas Grieb | 29,662 | 04 Jun, 2024 | |
| Daniel A Rykhus | 29,110 | 03 Jun, 2025 | |
| Thomas Edward Henning | 27,066 | 04 Jun, 2024 | |
| Karlyn M Knieriem | Evp And Chief Risk Officer | 25,171 | 26 Mar, 2024 |
| Stephen Mark Lacy | 22,834 | 03 Jun, 2025 | |
| Jodi Delahunt Hubbell | Chief Operating Officer | 20,374 | 16 Mar, 2022 |
| Lorrie F Asker | Chief Banking Officer | 19,708 | 18 Mar, 2025 |
| Biff Bowman | 19,682 | 03 Jun, 2025 | |
| Dennis L Johnson | 17,208 | 03 Jun, 2025 | |
| Kristina Robbins | Evp And Chief Operations Officer | 16,084 | 29 May, 2025 |
| Patricia L Moss | 16,062 | 03 Jun, 2025 | |
| Alice S Cho | 13,545 | 03 Jun, 2025 | |
| Scott Edward Erkonen | Evp And Chief Information Officer | 13,506 | 24 May, 2023 |
| Lori Meyer | Evp And Chief Information Officer | 12,808 | 18 Mar, 2025 |
| Joyce Ann Phillips | 12,352 | 03 Jun, 2025 | |
| James Brannen | 11,786 | 05 Jun, 2023 | |
| Ross E. Leckie | 9,734 | 02 Jun, 2022 | |
| Dana L Crandall | 9,712 | 02 Jun, 2021 | |
| Kade G Peterson | Chief Information Officer | 4,922 | 24 May, 2021 |
| Russell A Lee | Evp & Chief Banking Officer | 4,771 | 08 Nov, 2022 |
| Ashley Hayslip | Evp And Chief Banking Officer | 4,487 | 29 Nov, 2022 |
| Renee Newman | Evp And Chief Strategy Officer | 4,321 | 16 Feb, 2021 |
| Christopher L. Shepler | Chief Banking Officer | 3,899 | 24 Nov, 2025 |
| Michael L Scudder | 1,879 | 29 Aug, 2025 | |
| Renu Agrawal | 1,827 | 09 Sep, 2025 | |
| Philip G Gaglia | Chief Risk Officer | 1,687 | 18 May, 2022 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 12 Dec, 2025 | James R Scott | Common Stock | D | 755 | $0.00 | 4,433,966 | I | G |
| 08 Dec, 2025 | Geoffrey D Scott | Common stock | A | 550 | $0.00 | 113,926 | D | G |
| 08 Dec, 2025 | Geoffrey D Scott | Common stock | A | 550 | $0.00 | 2,615 | I | G |
| 12 Dec, 2025 | James R Scott | Common Stock | A | 755 | $0.00 | 4,433,211 | I | G |
| 08 Dec, 2025 | James R Scott | Common Stock | D | 755 | $0.00 | 4,433,966 | I | G |
| 08 Dec, 2025 | James R Scott | Common Stock | A | 755 | $0.00 | 4,433,211 | I | G |
| 03 Dec, 2025 | Risa Kae Scott | Common Stock | D | 3,000 | $0.00 | 322,546 | I | G |
| 01 Dec, 2025 | Scott Heyneman Trust, Susan Heyneman & First Interstate Wealth Management Co-Trustees Susan | Common Stock | D | 10,000 | $32.75 | 224,460 | I | S |
| 24 Nov, 2025 | Christopher L. Shepler | Common Stock | A | 1,591 | $31.42 | 3,899 | D | A |
| 21 Nov, 2025 | John M Jr Heyneman | Common Stock | D | 30,432 | $31.03 | 1,414,636 | I | S |
| 03 Nov, 2025 | Scott Heyneman Trust, Susan Heyneman & First Interstate Wealth Management Co-Trustees Susan | Common Stock | D | 10,000 | $30.99 | 234,460 | I | S |
| 03 Nov, 2025 | Jonathan R Scott | Common Stock | D | 4,800 | $31.27 | 941,024 | I | S |
| 29 Oct, 2025 | Jonathan R Scott | Common Stock | D | 7,000 | $32.09 | 945,824 | I | S |
| 09 Oct, 2025 | Jonathan R Scott | Common Stock | D | 685 | $31.66 | 952,824 | I | S |
| 07 Oct, 2025 | Jonathan R Scott | Common Stock | D | 13,715 | $32.09 | 959,109 | I | S |
| 08 Oct, 2025 | Jonathan R Scott | Common Stock | D | 5,600 | $32.01 | 953,509 | I | S |
| 10 Sep, 2025 | Christopher L. Shepler | Common Stock | A | 2,308 | $32.49 | 2,308 | D | A |
| 09 Sep, 2025 | Scott Heyneman Trust, Susan Heyneman & First Interstate Wealth Management Co-Trustees Susan | Common Stock | D | 152,160 | $0.00 | 367,096 | I | W |
| 09 Sep, 2025 | John M Jr Heyneman | Common Stock | A | 30,432 | $0.00 | 1,445,068 | I | W |
| 10 Sep, 2025 | John M Jr Heyneman | Common Stock | A | 45,154 | $0.00 | 45,154 | I | W |