Who owns FIBK?
Institutional ownership of First Interstate BancSystem Inc. from Form 13F, Q2 2026
298 institutional managers reported holding First Interstate BancSystem Inc. (FIBK) in Form 13F filings for Q2 2026, with 91,267,137 shares worth $3.5B. The largest reported holder was BlackRock, Inc. Managers that filed both quarters cut a net 917,304 shares (-1.0%). 34 opened new positions and 24 sold out.
- Funds holding
- 298
- Value held
- $3.5B
- New / sold out
- 34 / 24
- Net shares, same filers
- -1.0%
Holdings as of June 30, 2026, the end of Q2 2026. Managers have 45 days after a quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.
Largest holders of FIBK
| Fund | Value | Share of 13F holdings | Shares | Move |
|---|---|---|---|---|
| BlackRock, Inc. | $530M | 15.0% | 13,732,702 | Added |
| State Street Corp | $241M | 6.8% | 6,250,817 | Added |
| Dimensional Fund Advisors LP | $223M | 6.3% | 5,783,231 | Added |
| Vanguard Portfolio Management LLC | $212M | 6.0% | 5,506,456 | Added |
| First Interstate Bank | $178M | 5.1% | 4,614,432 | Trimmed |
| HoldCo Asset Management, LP | $152M | 4.3% | 3,950,107 | Unchanged |
| Wellington Management Group LLP | $145M | 4.1% | 3,768,343 | Trimmed |
| Vanguard Capital Management LLC | $144M | 4.1% | 3,738,371 | Trimmed |
| FMR LLC | $95.0M | 2.7% | 2,463,971 | Trimmed |
| Geode Capital Management, LLC | $92.1M | 2.6% | 2,387,561 | Added |
| Capital International Investors | $90.3M | 2.6% | 2,341,826 | Added |
| Victory Capital Management Inc | $82.9M | 2.4% | 2,149,403 | Added |
| Nomura Asset Management International Inc. | $77.8M | 2.2% | 2,018,138 | Added |
| Morgan Stanley | $63.2M | 1.8% | 1,639,233 | Added |
| Bank of America Corp | $56.4M | 1.6% | 1,462,281 | Trimmed |
| Franklin Resources Inc | $55.0M | 1.6% | 1,427,500 | Trimmed |
| JPMorgan Chase & Co | $54.4M | 1.5% | 1,405,780 | Trimmed |
| First Trust Advisors LP | $50.6M | 1.4% | 1,313,141 | Added |
| Massachusetts Financial Services Co | $46.6M | 1.3% | 1,209,484 | Trimmed |
| Capital World Investors | $45.4M | 1.3% | 1,178,546 | Added |
| Charles Schwab Investment Management Inc | $45.1M | 1.3% | 1,168,761 | Trimmed |
| UBS Group AG | $40.8M | 1.2% | 1,057,053 | Trimmed |
| Cramer Rosenthal Mcglynn LLC | $39.9M | 1.1% | 1,034,043 | Added |
| Bank of New York Mellon Corp | $38.7M | 1.1% | 1,002,675 | Added |
| Norges Bank | $37.7M | 1.1% | 978,151 | New |
Share of 13F holdings is each fund's shares as a share of the 91,267,137 FIBK shares all 13F filers reported, not of shares outstanding.
Biggest buyers in Q2 2026
- Norges Bank New+$37.7M
- D. E. Shaw & Co., Inc. New+$17.9M
- State Street Corp Added+$13.9M
- Nomura Asset Management International Inc. Added+$12.1M
- Two Sigma Investments, LP Added+$10.8M
- BlackRock, Inc. Added+$9.8M
- Geode Capital Management, LLC Added+$6.5M
- Dimensional Fund Advisors LP Added+$5.9M
- Invesco Ltd. Added+$5.6M
- Morgan Stanley Added+$4.8M
Biggest sellers in Q2 2026
- FMR LLC Trimmed-$54.5M
- UBS Group AG Trimmed-$27.0M
- Jennison Associates LLC Sold out-$19.6M
- Franklin Resources Inc Trimmed-$17.5M
- Raymond James Financial Inc Trimmed-$12.5M
- Bank of America Corp Trimmed-$12.2M
- JPMorgan Chase & Co Trimmed-$11.6M
- North Reef Capital Management LP Sold out-$10.9M
- Sei Investments Co Trimmed-$7.0M
- Millennium Management LLC Trimmed-$5.5M
The change in shares since the quarter before, adjusted for stock splits and priced at the Q2 2026 value per share. Funds bought $204M and sold $233M; 104 added and 102 trimmed.
Schedule 13D and 13G filings on FIBK
Owners of more than 5% must file within days, so these can be newer than the 13F data.
- 2026-08-07STATE STREET CORP SCHEDULE 13G filed by First Interstate BancSystem Inc.Schedule 13G
- 2026-02-09STATE STREET CORP SCHEDULE 13G filed by First Interstate BancSystem Inc.Schedule 13G
- 2025-07-15DIMENSIONAL FUND ADVISORS LP SCHEDULE 13G filed by First Interstate BancSystem Inc.Schedule 13G
- 2025-02-12FMR LLC SCHEDULE 13G filed by First Interstate BancSystem Inc.Schedule 13G
Questions about FIBK ownership
- Who owns FIBK stock?
- 298 institutional investment managers reported FIBK positions in their Form 13F filings for Q2 2026, holding 91,267,137 shares worth $3.5B in total. BlackRock, Inc. reported the largest position.
- Are funds buying or selling FIBK?
- In Q2 2026, 34 managers opened new FIBK positions, 104 added, 102 trimmed and 24 sold out. Managers that filed in both quarters sold a net 917,304 shares.
- How current is this FIBK institutional ownership data?
- It covers holdings as of the end of Q2 2026. Managers have 45 days after the quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.
From the SEC's Form 13F data sets for Q2 2026: every 13F holdings report, matched to FIBK by CUSIP. Options are left out. FIBK news and filings · FIBK insider trades · Top funds