FIBK First Interstate BancSystem, Inc.
First Interstate BancSystem, Inc. (FIBK) Institutional Ownership
What the institutions did with FIBK last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended September 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| DIMENSIONAL FUND ADVISORS LP | 5.8M | 23.5% |
| First Interstate Bank | 4.6M | 18.4% |
| GEODE CAPITAL MANAGEMENT, LLC | 2.3M | 9.4% |
| VICTORY CAPITAL MANAGEMENT INC | 2.2M | 8.8% |
| FMR LLC | 1.7M | 6.9% |
| UBS Group AG | 1.1M | 4.3% |
| Bank of New York Mellon Corp | 988.1K | 4.0% |
| Leeward Investments, LLC - MA | 583.6K | 2.3% |
| VILLERE ST DENIS J & CO LLC | 531.7K | 2.1% |
| PRINCIPAL FINANCIAL GROUP INC | 392.1K | 1.6% |
| Nuveen, LLC | 322.1K | 1.3% |
| Creative Planning | 287.0K | 1.2% |
| Public Sector Pension Investment Board | 278.8K | 1.1% |
| Fisher Asset Management, LLC | 265.3K | 1.1% |
| SEI INVESTMENTS CO | 264.4K | 1.1% |
| RHUMBLINE ADVISERS | 219.0K | 0.9% |
| HARBOR CAPITAL ADVISORS, INC. | 207.3K | 0.8% |
| Granite Investment Partners, LLC | 171.2K | 0.7% |
| Moody Aldrich Partners LLC | 158.5K | 0.6% |
| BESSEMER GROUP INC | 139.4K | 0.6% |
| GREAT LAKES ADVISORS, LLC | 105.4K | 0.4% |
| TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY | 101.7K | 0.4% |
| Russell Investments Group, Ltd. | 99.2K | 0.4% |
| BARCLAYS PLC | 99.0K | 0.4% |
| CITIGROUP INC | 96.7K | 0.4% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| FMR LLC | Reduced | 2.5M | 1.7M | -735.2K |
| DAVIDSON INVESTMENT ADVISORS | Reduced | 478.9K | 14.0K | -464.8K |
| Universal- Beteiligungs- und Servicegesellschaft mbH | Reduced | 111.9K | 26.8K | -85.1K |
| CITIGROUP INC | Reduced | 162.4K | 96.7K | -65.6K |
| DIMENSIONAL FUND ADVISORS LP | Increased | 5.8M | 5.8M | +64.4K |
| Connor, Clark & Lunn Investment Management Ltd. | Sold Out | 59.7K | 0 | -59.7K |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 2.4M | 2.3M | -56.3K |
| Squarepoint Ops LLC | Reduced | 124.8K | 69.2K | -55.6K |
| VICTORY CAPITAL MANAGEMENT INC | Increased | 2.1M | 2.2M | +53.1K |
| RITHOLTZ WEALTH MANAGEMENT | New | 0 | 49.5K | +49.5K |
| GREAT LAKES ADVISORS, LLC | Reduced | 146.2K | 105.4K | -40.8K |
| VILLERE ST DENIS J & CO LLC | Reduced | 567.7K | 531.7K | -36.0K |
| Leeward Investments, LLC - MA | Reduced | 618.4K | 583.6K | -34.8K |
| Northern Capital Management, Inc. | Reduced | 51.6K | 25.2K | -26.4K |
| Amundi | Increased | 49.2K | 73.7K | +24.5K |
| State of New Jersey Common Pension Fund D | Reduced | 60.0K | 35.9K | -24.1K |
| First Interstate Bank | Reduced | 4.6M | 4.6M | -23.3K |
| BARCLAYS PLC | Increased | 76.9K | 99.0K | +22.1K |
| INTECH INVESTMENT MANAGEMENT LLC | Sold Out | 18.9K | 0 | -18.9K |
| SEI INVESTMENTS CO | Reduced | 283.2K | 264.4K | -18.8K |
| HANTZ FINANCIAL SERVICES, INC. | Reduced | 33.7K | 16.7K | -17.0K |
| PRINCIPAL FINANCIAL GROUP INC | Reduced | 408.6K | 392.1K | -16.5K |
| Bank of New York Mellon Corp | Reduced | 1.0M | 988.1K | -14.5K |
| State of Alaska, Department of Revenue | Reduced | 32.1K | 17.6K | -14.5K |
| Teza Capital Management LLC | New | 0 | 12.3K | +12.3K |
| Moody Aldrich Partners LLC | Reduced | 170.3K | 158.5K | -11.8K |
| Public Sector Pension Investment Board | Reduced | 290.4K | 278.8K | -11.5K |
| UBS Group AG | Increased | 1.1M | 1.1M | +11.5K |
| denkapparat Operations GmbH | Increased | 20.6K | 28.8K | +8.2K |
| NISA INVESTMENT ADVISORS, LLC | Reduced | 12.5K | 4.3K | -8.2K |
| HARBOR CAPITAL ADVISORS, INC. | Increased | 199.1K | 207.3K | +8.2K |
| DEUTSCHE BANK AG\ | Reduced | 102.3K | 94.6K | -7.7K |
| Kestra Investment Management, LLC | Reduced | 27.4K | 20.1K | -7.3K |
| BESSEMER GROUP INC | Reduced | 146.0K | 139.4K | -6.6K |
| Telos Capital Management, Inc. | Sold Out | 6.6K | 0 | -6.6K |
| RHUMBLINE ADVISERS | Reduced | 225.3K | 219.0K | -6.3K |
| OpenArc Corporate Advisory, LLC | New | 0 | 6.1K | +6.1K |
| Maryland State Retirement & Pension System | Increased | 12.3K | 18.1K | +5.9K |
| Savant Capital, LLC | New | 0 | 5.8K | +5.8K |
| OPPENHEIMER ASSET MANAGEMENT INC. | Sold Out | 5.7K | 0 | -5.7K |
| NFJ INVESTMENT GROUP, LLC | Reduced | 73.9K | 68.4K | -5.5K |
| VIRGINIA RETIREMENT SYSTEMS ET Al | Sold Out | 5.5K | 0 | -5.5K |
| QUADRANT CAPITAL GROUP LLC | Sold Out | 5.2K | 0 | -5.2K |
| Russell Investments Group, Ltd. | Increased | 94.2K | 99.2K | +4.9K |
| LPL Financial LLC | Increased | 61.8K | 66.6K | +4.7K |
| Geneos Wealth Management Inc. | New | 0 | 4.2K | +4.2K |
| Thrivent Financial for Lutherans | Reduced | 55.5K | 52.1K | -3.4K |
| Vise Technologies, Inc. | Increased | 6.9K | 10.2K | +3.3K |
| Granite Investment Partners, LLC | Reduced | 174.4K | 171.2K | -3.2K |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC | Increased | 19.4K | 22.2K | +2.8K |
| BANK OF MONTREAL /CAN/ | Increased | 8.9K | 11.6K | +2.6K |
| WBI INVESTMENTS, LLC | Reduced | 19.7K | 17.3K | -2.4K |
| Illinois Municipal Retirement Fund | Reduced | 45.7K | 43.5K | -2.2K |
| Louisiana State Employees Retirement System | Reduced | 37.0K | 34.9K | -2.1K |
| Vest Financial, LLC | Increased | 55.5K | 57.4K | +1.9K |
| YOUSIF CAPITAL MANAGEMENT, LLC | Reduced | 22.8K | 20.9K | -1.9K |
| TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY | Increased | 100.0K | 101.7K | +1.7K |
| Police & Firemen's Retirement System of New Jersey | Reduced | 27.1K | 25.5K | -1.6K |
| HighTower Advisors, LLC | Increased | 13.8K | 15.4K | +1.6K |
| Hennion & Walsh Asset Management, Inc. | Increased | 19.4K | 20.9K | +1.5K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.