First Interstate BancSystem, Inc. (FIBK) Ownership
FIBK ownership summary
as of October 18, 2026- Institutions
- 98.2% of shares outstanding
- Insiders
- 8.42% of shares outstanding
- Shares outstanding
- 95.3M
- Float
- 79.2M shares available to trade
- Short interest
- 14.07% 8.6M shares short
- Days to cover
- 7.01 short interest down 12.7% vs prior month
- Institutions 98.18%
- Insiders 8.42%
FIBK top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | BlackRock Inc | 14.37% | 13.7M | $478.2M | +253,215 (+1.9%) | June 30, 2026 |
| 2 | State Street Corp | 6.54% | 6.3M | $217.7M | +359,546 (+6.1%) | June 30, 2026 |
| 3 | Dimensional Fund Advisors, Inc. | 6.05% | 5.8M | $201.4M | +152,442 (+2.7%) | June 30, 2026 |
| 4 | Vanguard Portfolio Management, LLC | 5.76% | 5.5M | $191.7M | +15,918 (+0.3%) | June 30, 2026 |
| 5 | First Interstate Bank | 4.83% | 4.6M | $160.7M | −38,687 (−0.8%) | June 30, 2026 |
| 6 | HoldCo Asset Management, L.P. | 4.13% | 4.0M | $137.5M | — | June 30, 2026 |
| 7 | Wellington Management Company LLP | 3.94% | 3.8M | $131.2M | −114,094 (−2.9%) | June 30, 2026 |
| 8 | Vanguard Capital Management, LLC | 3.91% | 3.7M | $130.2M | −117,443 (−3.0%) | June 30, 2026 |
| 9 | FMR Inc | 2.58% | 2.5M | $85.8M | −1.4M (−36.4%) | June 30, 2026 |
| 10 | Geode Capital Management, LLC | 2.50% | 2.4M | $83.1M | +169,242 (+7.6%) | June 30, 2026 |
| 11 | Capital Research & Mgmt Co - Division 3 | 2.45% | 2.3M | $81.5M | +51,254 (+2.2%) | June 30, 2026 |
| 12 | Victory Capital Management Inc. | 2.25% | 2.1M | $74.8M | +62,480 (+3.0%) | June 30, 2026 |
| 13 | Delaware Management Holdings Inc | 2.11% | 2.0M | $70.3M | +315,060 (+18.5%) | June 30, 2026 |
| 14 | Morgan Stanley - Brokerage Accounts | 1.72% | 1.6M | $57.1M | +125,083 (+8.3%) | June 30, 2026 |
| 15 | Bank of America Corp | 1.53% | 1.5M | $50.9M | −315,813 (−17.8%) | June 30, 2026 |
| 16 | Franklin Templeton Inc | 1.49% | 1.4M | $49.7M | −453,746 (−24.1%) | June 30, 2026 |
| 17 | JPMorgan Chase & Co | 1.47% | 1.4M | $48.9M | −300,671 (−17.6%) | June 30, 2026 |
| 18 | First Trust Advisors L.P. | 1.37% | 1.3M | $45.7M | +115,584 (+9.7%) | June 30, 2026 |
| 19 | Massachusetts Financial Services Company | 1.27% | 1.2M | $42.1M | −63,441 (−5.0%) | June 30, 2026 |
| 20 | Capital World Investors | 1.23% | 1.2M | $41.0M | +32,152 (+2.8%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 11 holders added 1.7M shares and 8 cut 2.8M.
FIBK top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | iShares Core S&P Small-Cap ETF | 5.12% | 4.9M | $170.3M | +1,128 (+0.0%) | September 30, 2026 |
| 2 | American Funds SMALLCAP World A | 3.58% | 3.4M | $119.2M | −13,102 (−0.4%) | June 30, 2026 |
| 3 | Vanguard MStar Total Stk Mkt Idx Invest | 2.75% | 2.6M | $91.6M | −3,824 (−0.1%) | August 31, 2026 |
| 4 | iShares Russell 2000 ETF | 2.44% | 2.3M | $81.3M | +17,262 (+0.7%) | September 30, 2026 |
| 5 | Vanguard Small Cap Index | 1.99% | 1.9M | $66.1M | +521 (+0.0%) | August 31, 2026 |
| 6 | DFA US Small Cap Value I | 1.39% | 1.3M | $46.4M | — | August 31, 2026 |
| 7 | Vanguard MStar Small Cap Value Index | 1.26% | 1.2M | $42.0M | +936 (+0.1%) | August 31, 2026 |
| 8 | Nomura Small Cap Core I | 1.25% | 1.2M | $41.7M | — | August 31, 2026 |
| 9 | State Street® SPDR® S&PRgnllBkgETF | 1.24% | 1.2M | $41.2M | +35,296 (+3.1%) | September 30, 2026 |
| 10 | Fidelity Small Cap Index | 1.06% | 1.0M | $35.3M | +7,075 (+0.7%) | July 31, 2026 |
| 11 | iShares Russell 2000 Value ETF | 0.90% | 862K | $30.0M | +1,306 (+0.2%) | September 30, 2026 |
| 12 | State Street SPDR Port S&P 600 Sm CpETF | 0.78% | 744K | $25.9M | — | September 30, 2026 |
| 13 | MFS New Discovery Value I | 0.77% | 733K | $25.5M | −12,372 (−1.7%) | August 31, 2026 |
| 14 | First Trust SMID Cp Rising Div Achv ETF | 0.75% | 717K | $25.0M | — | September 30, 2026 |
| 15 | DFA US Targeted Value I | 0.75% | 715K | $24.9M | — | August 31, 2026 |
| 16 | iShares S&P Small-Cap 600 Value ETF | 0.73% | 693K | $24.1M | — | September 30, 2026 |
| 17 | Dimensional US Targeted Value ETF | 0.64% | 611K | $21.3M | +16 (+0.0%) | September 30, 2026 |
| 18 | Vanguard Tax-Managed Small Cap Adm | 0.61% | 588K | $20.5M | — | August 31, 2026 |
| 19 | Strategic Advisers Fidelity US TtlStk | 0.61% | 580K | $20.2M | — | August 31, 2026 |
| 20 | Dimensional US Small Cap Value ETF | 0.58% | 558K | $19.4M | +178 (+0.0%) | September 24, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
FIBK insider transactions
latest 14| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2026-01-06 | Jonathan R Scott | Sell | $36.92 | 1,827 | $67,453 |
| 2026-01-05 | Jonathan R Scott | Sell | $36.20 | 3,173 | $114,863 |
| 2025-12-01 | Susan Scott Heyneman Trust, Su | Sell | $32.75 | 10,000 | $327,500 |
| 2025-11-21 | John M Heyneman Jr | Sell | $31.03 | 30,432 | $944,305 |
| 2025-11-03 | Jonathan R Scott | Sell | $31.27 | 4,800 | $150,096 |
| 2025-11-03 | Susan Scott Heyneman Trust, Su | Sell | $30.99 | 10,000 | $309,900 |
| 2025-10-29 | Jonathan R Scott | Sell | $32.09 | 7,000 | $224,630 |
| 2025-10-09 | Jonathan R Scott | Sell | $31.66 | 685 | $21,687 |
| 2025-10-08 | Jonathan R Scott | Sell | $32.01 | 5,600 | $179,256 |
| 2025-10-07 | Jonathan R Scott | Sell | $32.09 | 13,715 | $440,114 |
| 2025-10-01 | Susan Scott Heyneman Trust, Su | Sell | $31.59 | 10,000 | $315,900 |
| 2025-08-14 | John M Heyneman Jr | Sell | $30.18 | 11,818 | $356,667 |
| 2025-08-01 | Susan Scott Heyneman Trust, Su | Sell | $27.86 | 55,000 | $1.5M |
| 2025-07-14 | Susan Scott Heyneman Trust, Su | Sell | $31.11 | 55,000 | $1.7M |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
FIBK shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns FIBK
Institutional investors own 98.2% of First Interstate BancSystem's shares and insiders 8.42%. The largest holder is BlackRock Inc with 14.37% of the shares (13.7M), as of June 30, 2026. Among the top 20 institutions, 11 added shares and 8 reduced their stake in the latest filings. Short interest is 14.07% of the float, or 7.01 days of average trading volume. The share count rose 119.6% since 2014.
Related: FIBK analyst forecast, FIBK key metrics, FIBK dividend history. See the FIBK stock overview for the latest quote and news.
FIBK ownership FAQ
Who owns the most First Interstate BancSystem stock?
The largest shareholders of First Interstate BancSystem are BlackRock Inc (14.37%), State Street Corp (6.54%), Dimensional Fund Advisors, Inc. (6.05%), Vanguard Portfolio Management, LLC (5.76%), First Interstate Bank (4.83%).
What percentage of First Interstate BancSystem is owned by institutions?
Institutions hold 98.2% of First Interstate BancSystem's shares outstanding; insiders hold 8.42%.
Which funds own First Interstate BancSystem?
The largest fund holders of First Interstate BancSystem are iShares Core S&P Small-Cap ETF (5.12%), American Funds SMALLCAP World A (3.58%), Vanguard MStar Total Stk Mkt Idx Invest (2.75%), iShares Russell 2000 ETF (2.44%), Vanguard Small Cap Index (1.99%).
What is First Interstate BancSystem's short interest?
8.6M shares of First Interstate BancSystem were sold short, 14.07% of the float; at the average daily volume it would take 7.01 days to cover.
Are insiders buying or selling First Interstate BancSystem?
Of the latest 14 reported insider transactions in First Interstate BancSystem (since July 14, 2025), 0 were purchases and 14 were sales.
How many shares of First Interstate BancSystem are outstanding?
First Interstate BancSystem has 95.3M shares outstanding, of which 79.2M are in the public float.