First Interstate BancSystem Inc (FIBK)
Who owns First Interstate BancSystem Inc (FIBK)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 84.7% of the shares are freely tradable; institutional investors hold 99.1%.
Ownership Structure
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 13.88 | 13,479,487 | -1.0 | 03/31/2026 |
| Vanguard Group Inc | 10.34 | 10,048,419 | +13.7 | 12/31/2025 |
| State Street Corp | 6.06 | 5,891,271 | +7.5 | 03/31/2026 |
| Dimensional Fund Advisors, Inc. | 5.80 | 5,630,789 | +4.3 | 03/31/2026 |
| Vanguard Portfolio Management, LLC | 5.65 | 5,490,538 | +0.0 | 03/31/2026 |
| First Interstate Bank | 4.79 | 4,653,119 | -0.3 | 03/31/2026 |
| HoldCo Asset Management, L.P. | 4.07 | 3,950,107 | +0.0 | 03/31/2026 |
| Wellington Management Company LLP | 4.00 | 3,882,437 | -33.0 | 03/31/2026 |
| FMR Inc | 3.99 | 3,877,196 | -18.1 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 5.50 | 5,340,995 | +0.0 | 05/29/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 27. Jul 2026 | Scott Julie A | 10% Owner | Other | 1,350 | 0.00 | – |
| 16. Jul 2026 | Scott Jonathan R | 10% Owner | Sell | 10,000 | 40.30 | 403,000 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character.
View all insider transactions →Data as of: July 31, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.