First Interstate Bancsystem FIBK Institutional Ownership

Updated Oct 11, 2026

First Interstate Bancsystem Inc (NASDAQ:FIBK) appeared in the 13F filings of 299 institutional investors for the quarter ended June 30, 2026.

• These investors held 94.50% of outstanding shares in Q2 2026, up from 93.20% the quarter before.
• Total holdings of First Interstate Bancsystem shares fell 0.96% from Q1 2026, and the number of holders rose 30.57% from Q2 2025.
• Among the 299 holders of First Interstate Bancsystem, 148 added to their positions, 101 reduced their stakes and 50 left their positions unchanged.
• In total, institutional investors held 91.27Mn shares of First Interstate Bancsystem at the end of Q2 2026, down 885.34K from the prior quarter and up 6.54Mn from a year earlier.
• BlackRock, Inc. held the largest position in FIBK at 13.73Mn shares as of June 30, 2026, or 14.22% of shares outstanding.
• The biggest increases in FIBK positions during Q2 2026 came from State Street Corp (+359.55K shares), Nomura Asset Management International Inc. (+315.06K shares), Two Sigma Investments, LP (+280.88K shares), BlackRock, Inc. (+253.22K shares) and Geode Capital Management, LLC (+169.24K shares).
• The largest position reductions in FIBK for Q2 2026 were by FMR LLC (-1.41Mn shares), UBS Group AG (-699.24K shares), Franklin Templeton Inc (-453.75K shares), Raymond James Financial Inc (-324.89K shares) and Bank of America Corp (-315.81K shares).
• Business Quant data shows the 10 biggest positions in First Interstate Bancsystem as of Q2 2026 were held by BlackRock, Inc. (13.73Mn shares), State Street Corp (6.25Mn shares), Dimensional Fund Advisors LP (5.78Mn shares), Vanguard Portfolio Management LLC (5.51Mn shares), First Interstate Bank (4.61Mn shares), HoldCo Asset Management, LP (3.95Mn shares), Wellington Management Group LLP (3.77Mn shares), Vanguard Capital Management LLC (3.74Mn shares), FMR LLC (2.46Mn shares) and Geode Capital Management, LLC (2.39Mn shares).