First Interstate Bancsystem's top three insider shareholders as of September 29, 2026 are James R Scott (TenPercentOwner, 4.43Mn shares), James R Scott (Director, 4.40Mn shares), Jeremy Scott (Director, 3.51Mn shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | James R Scott | TenPercentOwner | 18,319 | 4,433,211 | 4,451,530 | 21.6% | 15 Dec, 2025 |
| 2 | Homer A Jr Scott | TenPercentOwner | 0 | 3,919,176 | 3,919,176 | 19.0% | 06 Sep, 2023 |
| 3 | Jeremy Scott | Director, TenPercentOwner | 5,743 | 3,485,050 | 3,490,793 | 17.0% | 03 Jun, 2026 |
| 4 | Julie A Scott | TenPercentOwner | 0 | 2,861,160 | 2,861,160 | 13.9% | 16 Sep, 2026 |
| 5 | Jonathan R Scott | TenPercentOwner | 0 | 1,772,409 | 1,772,409 | 8.6% | 14 Sep, 2026 |
| 6 | Scott Jr Trust, Homer Scott Jr. First Interstate Wealth Management Co Trustees Homer | TenPercentOwner | 0 | 950,753 | 950,753 | 4.6% | 15 Dec, 2023 |
| 7 | Risa Kae Scott | TenPercentOwner | 0 | 809,138 | 809,138 | 3.9% | 04 Dec, 2025 |
| 8 | Susan Scott Heyneman | TenPercentOwner | 0 | 639,256 | 639,256 | 3.1% | 19 Jul, 2022 |
| 9 | Kevin P Riley | President Ceo | 118,581 | 124,677 | 243,258 | 1.2% | 02 Aug, 2024 |
| 10 | Scott Heyneman Trust, Susan Heyneman First Interstate Wealth Management Co-Trustees Susan | TenPercentOwner | 0 | 224,460 | 224,460 | 1.1% | 01 Dec, 2025 |
| 11 | James R. Jr Scott | Director, TenPercentOwner | 156,179 | 0 | 156,179 | 0.8% | 03 Jun, 2026 |
| 12 | Geoffrey D Scott | TenPercentOwner | 113,926 | 2,615 | 116,541 | 0.6% | 10 Dec, 2025 |
| 13 | Marcy D Mutch | Exec. Vice Pres. Cfo | 115,485 | 0 | 115,485 | 0.6% | 18 Mar, 2025 |
| 14 | James A Reuter | President And Ceo | 86,904 | 0 | 86,904 | 0.4% | 18 Mar, 2026 |
| 15 | David L Jahnke | Director | 57,042 | 0 | 57,042 | 0.3% | 03 Jun, 2025 |
| 16 | Kirk D Jensen | General Counsel | 53,550 | 0 | 53,550 | 0.3% | 03 Jun, 2026 |
| 17 | Daniel A Rykhus | Director | 53,403 | 0 | 53,403 | 0.3% | 03 Jun, 2026 |
| 18 | Thomas Edward Henning | Director | 51,118 | 0 | 51,118 | 0.2% | 04 Jun, 2024 |
| 19 | Frances Pallas Grieb | Director | 47,886 | 0 | 47,886 | 0.2% | 04 Jun, 2024 |
| 20 | Karlyn M Knieriem | Evp, Chief Risk Officer | 45,926 | 0 | 45,926 | 0.2% | 26 Mar, 2024 |
| 21 | Stephen Mark Lacy | Director | 39,708 | 0 | 39,708 | 0.2% | 03 Jun, 2025 |
| 22 | Biff Bowman | Director | 32,148 | 0 | 32,148 | 0.2% | 03 Jun, 2026 |
| 23 | John M Jr Heyneman | Director, TenPercentOwner | 32,002 | 0 | 32,002 | 0.2% | 03 Jun, 2026 |
| 24 | Dennis L Johnson | Director | 30,703 | 0 | 30,703 | 0.1% | 03 Jun, 2026 |
| 25 | Camera David Della | Chief Financial Officer | 30,048 | 0 | 30,048 | 0.1% | 03 Jun, 2026 |
| 26 | Kristina Robbins | Evp, Chief Operations Officer | 27,757 | 0 | 27,757 | 0.1% | 18 Mar, 2026 |
| 27 | Lorrie F Asker | Chief Banking Officer | 26,297 | 0 | 26,297 | 0.1% | 18 Mar, 2025 |
| 28 | Patricia L Moss | Director | 26,164 | 0 | 26,164 | 0.1% | 03 Jun, 2025 |
| 29 | Scott Edward Erkonen | Evp, Chief Information Officer | 24,221 | 0 | 24,221 | 0.1% | 24 May, 2023 |
| 30 | Alice S Cho | Director | 23,377 | 0 | 23,377 | 0.1% | 03 Jun, 2026 |
| 31 | Joyce Ann Phillips | Director | 20,991 | 0 | 20,991 | 0.1% | 03 Jun, 2026 |
| 32 | Jodi Delahunt Hubbell | Chief Operating Officer | 20,374 | 0 | 20,374 | 0.1% | 16 Mar, 2022 |
| 33 | Ryan J. Boschee | Chief Credit Officer | 16,777 | 0 | 16,777 | 0.1% | 03 Jun, 2026 |
| 34 | Lori Meyer | Evp, Chief Information Officer | 16,517 | 0 | 16,517 | 0.1% | 03 Jun, 2026 |
| 35 | Jolyn M. Kanning | Chief Risk Officer | 13,885 | 0 | 13,885 | 0.1% | 03 Jun, 2026 |
| 36 | Christopher L. Shepler | Chief Banking Officer | 13,018 | 0 | 13,018 | 0.1% | 22 Sep, 2026 |
| 37 | James Brannen | Director | 11,786 | 0 | 11,786 | 0.1% | 01 Jun, 2023 |
| 38 | Ross E. Leckie | Director | 9,734 | 0 | 9,734 | 0.0% | 01 Jun, 2022 |
| 39 | Jeffery D. Lee | Chief Operations Officer | 5,417 | 0 | 5,417 | 0.0% | 16 Sep, 2026 |
| 40 | Russell A Lee | Evp Chief Banking Officer | 4,771 | 0 | 4,771 | 0.0% | 08 Nov, 2022 |
| 41 | Ashley Hayslip | Evp, Chief Banking Officer | 4,487 | 0 | 4,487 | 0.0% | 29 Nov, 2022 |
| 42 | Michael L Scudder | Director | 4,126 | 0 | 4,126 | 0.0% | 03 Jun, 2026 |
| 43 | Renu Agrawal | Director | 4,074 | 0 | 4,074 | 0.0% | 03 Jun, 2026 |
| 44 | Nathan R Jones | Chief Risk Officer | 3,843 | 0 | 3,843 | 0.0% | 17 Mar, 2026 |
| 45 | Brian Kevin Turner | Director | 1,806 | 0 | 1,806 | 0.0% | 24 Jul, 2026 |
| 46 | Matthew John Ritter | Director | 1,806 | 0 | 1,806 | 0.0% | 24 Jul, 2026 |
| 47 | Philip G Gaglia | Chief Risk Officer | 1,687 | 0 | 1,687 | 0.0% | 18 May, 2022 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 10 Sep, 2026 | Christopher L. Shepler | Chief Banking Officer | Disposed F | 222 | $36.88 | $8.19K | 13,018 | Direct |
| 27 Jul, 2026 | Julie A Scott | TenPercentOwner | Disposed G | 1,350 | $0.00 | $0 | 487,009 | Indirect |
| 22 Jul, 2026 | Matthew John Ritter | Director | Acquired A | 1,806 | $38.97 | $70.38K | 1,806 | Direct |
| 22 Jul, 2026 | Brian Kevin Turner | Director | Acquired A | 1,806 | $38.97 | $70.38K | 1,806 | Direct |
| 16 Jul, 2026 | Jonathan R Scott | TenPercentOwner | Disposed S | 10,000 | $40.30 | $403.00K | 842,738 | Indirect |
| 18 Jun, 2026 | Jonathan R Scott | TenPercentOwner | Disposed S | 9,390 | $36.11 | $339.07K | 852,738 | Indirect |
| 17 Jun, 2026 | Jonathan R Scott | TenPercentOwner | Disposed S | 4,500 | $36.29 | $163.31K | 862,128 | Indirect |
| 18 Jun, 2026 | Julie A Scott | TenPercentOwner | Disposed S | 5,000 | $35.95 | $179.75K | 498,359 | Indirect |
| 18 Jun, 2026 | Julie A Scott | TenPercentOwner | Disposed S | 5,000 | $35.98 | $179.90K | 493,359 | Indirect |
| 18 Jun, 2026 | Julie A Scott | TenPercentOwner | Disposed S | 5,000 | $35.97 | $179.85K | 488,359 | Indirect |
| 04 Jun, 2026 | Jonathan R Scott | TenPercentOwner | Disposed S | 12,892 | $35.58 | $458.70K | 866,628 | Indirect |
| 01 Jun, 2026 | Kirk D Jensen | General Counsel | Acquired A | 2,247 | $0.00 | $0 | 34,978 | Direct |
| 01 Jun, 2026 | Renu Agrawal | Director | Acquired A | 2,247 | $0.00 | $0 | 4,074 | Direct |
| 01 Jun, 2026 | Camera David Della | Chief Financial Officer | Acquired A | 3,370 | $0.00 | $0 | 30,048 | Direct |
| 01 Jun, 2026 | Christopher L. Shepler | Chief Banking Officer | Acquired A | 3,370 | $0.00 | $0 | 13,240 | Direct |
| 01 Jun, 2026 | Daniel A Rykhus | Director | Acquired A | 2,247 | $0.00 | $0 | 31,357 | Direct |
| 01 Jun, 2026 | Michael L Scudder | Director | Acquired A | 2,247 | $0.00 | $0 | 4,126 | Direct |
| 01 Jun, 2026 | Ryan J. Boschee | Chief Credit Officer | Acquired A | 2,247 | $0.00 | $0 | 16,777 | Direct |
| 01 Jun, 2026 | James R. Jr Scott | Director, TenPercentOwner | Acquired A | 2,247 | $0.00 | $0 | 80,792 | Direct |
| 01 Jun, 2026 | Dennis L Johnson | Director | Acquired A | 2,247 | $0.00 | $0 | 19,455 | Direct |