Who owns FIBK (FIBK)
Which tracked institutional funds hold FIBK, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See FIBK company fundamentals →
Ownership as of the 2026-Q1 13F filings. 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
53 tracked funds added or opened FIBK while 63 trimmed or exited it between 2025-Q4 and 2026-Q1 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
FIBK’s largest tracked holder by dollar value, VANGUARD GROUP INC, sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes FIBK more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in FIBK divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2025-Q4 and 2026-Q1, across 289 tracked filers holding FIBK, 145 increased or opened the position and 143 reduced or closed it; over the same quarter, open-market insider Form 4 buying and selling roughly offset.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in FIBK between the 2025-Q4 and 2026-Q1 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 23
- VANGUARD PORTFOLIO MANAGEMENT LLC$183M
- VANGUARD CAPITAL MANAGEMENT LLC$129M
- Capital World Investors$38M
- MILLENNIUM MANAGEMENT LLC$26M
- VANGUARD FIDUCIARY TRUST CO$19M
- Moody Aldrich Partners LLC$6M
Full exits 11
- VANGUARD GROUP INC$323M
- HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC$11M
- Bridgewater Associates, LP$7M
- PEREGRINE CAPITAL MANAGEMENT LLC$6M
- BW Gestao de Investimentos Ltda.$2M
- COMERICA BANK$1M
Largest adds
- FIRST TRUST ADVISORS LP$27M
- STATE STREET CORP$7M
- Numerai GP LLC$3M
- Creative Planning$3M
- HARBOR CAPITAL ADVISORS, INC.$3M
- VILLERE ST DENIS J & CO LLC$2M
Largest trims
- BlackRock, Inc.$159M
- WELLINGTON MANAGEMENT GROUP LLP$72M
- North Reef Capital Management LP$57M
- FMR LLC$35M
- JENNISON ASSOCIATES LLC$27M
- FRANKLIN RESOURCES INC$27M
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. trimmed | 9,352,514 | $312M | 9.2% | 2026-Q1 |
| STATE STREET CORP added | 5,891,271 | $197M | 5.8% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 5,630,789 | $188M | 5.6% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 5,490,538 | $183M | 5.4% | 2026-Q1 |
| First Interstate Bank trimmed | 4,653,119 | $155M | 4.6% | 2026-Q1 |
| HoldCo Asset Management, LP | 3,950,107 | $132M | 3.9% | 2026-Q1 |
| FMR LLC trimmed | 3,868,593 | $129M | 3.8% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 3,855,814 | $129M | 3.8% | 2026-Q1 |
| WELLINGTON MANAGEMENT GROUP LLP trimmed | 3,838,985 | $128M | 3.8% | 2026-Q1 |
| Capital International Investors trimmed | 2,290,572 | $77M | 2.3% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC trimmed | 2,218,319 | $74M | 2.2% | 2026-Q1 |
| VICTORY CAPITAL MANAGEMENT INC added | 2,086,923 | $70M | 2.1% | 2026-Q1 |
| FRANKLIN RESOURCES INC trimmed | 1,881,246 | $63M | 1.9% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 1,778,094 | $59M | 1.8% | 2026-Q1 |
| UBS Group AG trimmed | 1,756,292 | $59M | 1.7% | 2026-Q1 |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. trimmed | 1,703,078 | $57M | 1.7% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 1,706,451 | $56M | 1.7% | 2026-Q1 |
| MORGAN STANLEY trimmed | 1,514,150 | $51M | 1.5% | 2026-Q1 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ trimmed | 1,272,925 | $43M | 1.3% | 2026-Q1 |
| FIRST TRUST ADVISORS LP added | 1,197,557 | $40M | 1.2% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 1,183,384 | $40M | 1.2% | 2026-Q1 |
| Capital World Investors new | 1,146,394 | $38M | 1.1% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 976,166 | $33M | 1.0% | 2026-Q1 |
| CRAMER ROSENTHAL MCGLYNN LLC trimmed | 914,214 | $31M | 0.9% | 2026-Q1 |
| NORTHERN TRUST CORP added | 881,344 | $29M | 0.9% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 781,127 | $26M | 0.8% | 2026-Q1 |
| PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. added | 735,419 | $25M | 0.7% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 705,806 | $24M | 0.7% | 2026-Q1 |
| NORGES BANK trimmed | 799,941 | $23M | 0.7% | 2026-Q1 |
| Leeward Investments, LLC - MA trimmed | 631,978 | $21M | 0.6% | 2026-Q1 |
| VILLERE ST DENIS J & CO LLC added | 627,031 | $21M | 0.6% | 2026-Q1 |
| JENNISON ASSOCIATES LLC trimmed | 586,654 | $20M | 0.6% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 567,806 | $19M | 0.6% | 2026-Q1 |
| SEI INVESTMENTS CO added | 465,495 | $16M | 0.5% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC added | 427,429 | $14M | 0.4% | 2026-Q1 |
| Aristotle Capital Boston, LLC trimmed | 418,256 | $14M | 0.4% | 2026-Q1 |
| DAVIDSON INVESTMENT ADVISORS trimmed | 402,384 | $12M | 0.3% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC added | 331,534 | $11M | 0.3% | 2026-Q1 |
| North Reef Capital Management LP trimmed | 325,157 | $11M | 0.3% | 2026-Q1 |
| Public Sector Pension Investment Board added | 314,722 | $11M | 0.3% | 2026-Q1 |
| Nuveen, LLC trimmed | 299,683 | $10M | 0.3% | 2026-Q1 |
| Cambria Investment Management, L.P. added | 276,842 | $9M | 0.3% | 2026-Q1 |
| Fisher Asset Management, LLC added | 265,957 | $9M | 0.3% | 2026-Q1 |
| Invesco Ltd. trimmed | 258,447 | $9M | 0.3% | 2026-Q1 |
| RHUMBLINE ADVISERS trimmed | 246,916 | $8M | 0.2% | 2026-Q1 |
| Legal & General Group Plc trimmed | 203,907 | $7M | 0.2% | 2026-Q1 |
| HARBOR CAPITAL ADVISORS, INC. added | 200,193 | $7M | 0.2% | 2026-Q1 |
| Creative Planning added | 199,598 | $7M | 0.2% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 179,957 | $6M | 0.2% | 2026-Q1 |
| Swiss National Bank trimmed | 173,046 | $6M | 0.2% | 2026-Q1 |
| Granite Investment Partners, LLC added | 172,335 | $6M | 0.2% | 2026-Q1 |
| Moody Aldrich Partners LLC new | 170,347 | $6M | 0.2% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC trimmed | 165,641 | $6M | 0.2% | 2026-Q1 |
| GREAT LAKES ADVISORS, LLC added | 160,177 | $5M | 0.2% | 2026-Q1 |
| CITIGROUP INC added | 155,862 | $5M | 0.2% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC trimmed | 154,831 | $5M | 0.2% | 2026-Q1 |
| KENNEDY CAPITAL MANAGEMENT LLC trimmed | 148,515 | $5M | 0.1% | 2026-Q1 |
| BESSEMER GROUP INC added | 145,853 | $5M | 0.1% | 2026-Q1 |
| Rafferty Asset Management, LLC added | 126,467 | $4M | 0.1% | 2026-Q1 |
| STIFEL FINANCIAL CORP trimmed | 124,814 | $4M | 0.1% | 2026-Q1 |
| Squarepoint Ops LLC added | 121,130 | $4M | 0.1% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC added | 120,760 | $4M | 0.1% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN trimmed | 120,545 | $4M | 0.1% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP trimmed | 115,714 | $4M | 0.1% | 2026-Q1 |
| Numerai GP LLC added | 115,234 | $4M | 0.1% | 2026-Q1 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM added | 113,551 | $4M | 0.1% | 2026-Q1 |
| SG Americas Securities, LLC added | 108,497 | $4M | 0.1% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. trimmed | 101,950 | $4M | 0.1% | 2026-Q1 |
| RICE HALL JAMES & ASSOCIATES, LLC trimmed | 103,949 | $3M | 0.1% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 103,714 | $3M | 0.1% | 2026-Q1 |
| Universal- Beteiligungs- und Servicegesellschaft mbH trimmed | 103,522 | $3M | 0.1% | 2026-Q1 |
| TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY | 99,986 | $3M | 0.1% | 2026-Q1 |
| Vestmark Advisory Solutions, Inc. added | 99,060 | $3M | 0.1% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 93,821 | $3M | 0.1% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 93,374 | $3M | 0.1% | 2026-Q1 |
| T. Rowe Price Investment Management, Inc. new | 92,698 | $3M | 0.1% | 2026-Q1 |
| Phocas Financial Corp. trimmed | 91,894 | $3M | 0.1% | 2026-Q1 |
| BARCLAYS PLC trimmed | 91,838 | $3M | 0.1% | 2026-Q1 |
| PRUDENTIAL FINANCIAL INC added | 89,870 | $3M | 0.1% | 2026-Q1 |
| DEUTSCHE BANK AG\ added | 87,081 | $3M | 0.1% | 2026-Q1 |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC added | 86,713 | $3M | 0.1% | 2026-Q1 |
| Cladis Investment Advisory, LLC trimmed | 84,953 | $3M | 0.1% | 2026-Q1 |
| CANADA LIFE ASSURANCE Co trimmed | 78,222 | $3M | 0.1% | 2026-Q1 |
| Ashton Thomas Private Wealth, LLC trimmed | 77,285 | $3M | 0.1% | 2026-Q1 |
| Connor, Clark & Lunn Investment Management Ltd. new | 75,925 | $3M | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC added | 9,341,791 | $323M | 9.6% | 2025-Q4 stale |
| MACQUARIE GROUP LTD trimmed | 2,179,742 | $69M | 2.1% | 2025-Q3 stale |
| Azora Capital LP added | 1,275,693 | $41M | 1.2% | 2025-Q3 stale |
| FJ Capital Management LLC added | 890,226 | $26M | 0.8% | 2025-Q1 stale |
| Aberdeen Group plc trimmed | 451,115 | $13M | 0.4% | 2025-Q1 stale |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC trimmed | 318,450 | $11M | 0.3% | 2025-Q4 stale |
| ExodusPoint Capital Management, LP added | 265,792 | $8M | 0.3% | 2025-Q3 stale |
| JANE STREET GROUP, LLC added | 238,472 | $8M | 0.2% | 2025-Q3 stale |
| Bridgewater Associates, LP new | 199,396 | $7M | 0.2% | 2025-Q4 stale |
| PEREGRINE CAPITAL MANAGEMENT LLC trimmed | 184,666 | $6M | 0.2% | 2025-Q4 stale |
| RENAISSANCE TECHNOLOGIES LLC added | 218,098 | $6M | 0.2% | 2025-Q2 stale |
| Interval Partners, LP added | 121,693 | $4M | 0.1% | 2025-Q3 stale |
| TWO SIGMA ADVISERS, LP added | 102,648 | $3M | 0.1% | 2025-Q3 stale |
| Schonfeld Strategic Advisors LLC added | 91,248 | $3M | 0.1% | 2025-Q3 stale |
| Walleye Capital LLC added | 92,683 | $3M | 0.1% | 2025-Q2 stale |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.