FIRST INTERSTATE BANCSYS-A (FIBK) Institutional Shareholders
FIRST INTERSTATE BANCSYS-A (FIBK) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $3.45B in FIBK holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of FIBK tracked by InsiderSet, reporting ownership valued at approximately $529.53M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $512.92M, representing an estimated loss of -3.14% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 58% of the total disclosed FIBK value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., State Street Corp, Dimensional Fund Advisors Lp, and several other long-term asset managers with concentrated positions in FIRST INTERSTATE BANCSYS-A (FIBK).
This page ranks the largest institutional FIBK shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
287
Total Reported Value
$3.45B
Largest Holder
Blackrock, Inc.
Largest Position
$529.53M
Insider Transactions (90d)
8
Latest Filing Quarter
Q2 2026
New Institutional Positions
41
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.01% | 13,732,702 | $529,532,993 | $512,916,420 | -$16,616,573 | -3.14% | |
| State Street Corp | 0.01% | 6,250,817 | $241,031,504 | $233,468,015 | -$7,563,489 | -3.14% | |
| Dimensional Fund Advisors Lp | 0.04% | 5,783,231 | $223,002,499 | $216,003,678 | -$6,998,821 | -3.14% | |
| Vanguard Portfolio Management Llc | 0.01% | 5,506,456 | $212,328,943 | $205,666,132 | -$6,662,811 | -3.14% | |
| First Interstate Bank | 9.28% | 4,614,432 | $177,932,498 | $172,349,035 | -$5,583,463 | -3.14% | |
| Holdco Asset Management, Lp | 9.78% | 3,950,107 | $152,316,126 | $147,536,496 | -$4,779,630 | -3.14% | |
| Wellington Management Group Llp | 0.03% | 3,768,343 | $145,307,306 | $140,747,611 | -$4,559,695 | -3.14% | |
| Vanguard Capital Management Llc | 0.00% | 3,738,371 | $144,151,586 | $139,628,157 | -$4,523,429 | -3.14% | |
| Fmr Llc | 0.00% | 2,463,971 | $95,010,740 | $92,029,317 | -$2,981,423 | -3.14% | |
| Geode Capital Management, Llc | 0.00% | 2,387,561 | $92,077,202 | $89,175,403 | -$2,901,799 | -3.15% | |
| Capital International Investors | 0.02% | 2,341,826 | $90,300,811 | $87,467,201 | -$2,833,610 | -3.14% | |
| Victory Capital Management Inc | 0.05% | 2,149,403 | $82,880,980 | $80,280,202 | -$2,600,778 | -3.14% | |
| Nomura Asset Management International Inc. | 0.12% | 2,018,138 | $77,826,000 | $75,377,454 | -$2,448,546 | -3.15% | |
| Morgan Stanley | 0.00% | 1,639,233 | $63,208,859 | $61,225,353 | -$1,983,506 | -3.14% | |
| Bank Of America Corp | 0.00% | 1,462,281 | $56,385,556 | $54,616,195 | -$1,769,361 | -3.14% | |
| Jpmorgan Chase & Co | 0.00% | 1,405,780 | $54,387,664 | $52,505,883 | -$1,881,781 | -3.46% | |
| First Trust Advisors Lp | 0.03% | 1,313,141 | $50,634,716 | $49,045,816 | -$1,588,900 | -3.14% | |
| Massachusetts Financial Services Co | 0.01% | 1,209,484 | $46,637,703 | $45,174,227 | -$1,463,476 | -3.14% | |
| Capital World Investors | 0.01% | 1,178,546 | $45,444,734 | $44,018,693 | -$1,426,041 | -3.14% | |
| Charles Schwab Investment Management Inc | 0.01% | 1,168,761 | $45,067,424 | $43,653,223 | -$1,414,201 | -3.14% | |
| Ubs Group Ag | 0.01% | 1,057,053 | $40,759,964 | $39,480,930 | -$1,279,034 | -3.14% | |
| Cramer Rosenthal Mcglynn Llc | 2.02% | 1,034,043 | $39,872,698 | $38,621,506 | -$1,251,192 | -3.14% | |
| Bank Of New York Mellon Corp | 0.01% | 1,002,675 | $38,663,149 | $37,449,911 | -$1,213,238 | -3.14% | |
| Norges Bank | 0.00% | 978,151 | $37,717,503 | $36,533,940 | -$1,183,563 | -3.14% | |
| Northern Trust Corp | 0.00% | 978,127 | $37,716,577 | $36,533,043 | -$1,183,534 | -3.14% | |
| Punch & Associates Investment Management, Inc. | 1.48% | 778,006 | $29,999,915 | $29,058,524 | -$941,391 | -3.14% | |
| Goldman Sachs Group Inc | 0.00% | 753,537 | $29,056,393 | $28,144,607 | -$911,786 | -3.14% | |
| Millennium Management Llc | 0.02% | 638,735 | $24,629,622 | $23,856,752 | -$772,870 | -3.14% | |
| Leeward Investments, Llc - Ma | 1.08% | 618,416 | $23,846,121 | $23,097,838 | -$748,283 | -3.14% | |
| Villere St Denis J & Co Llc | 2.61% | 567,701 | $21,890,550 | $21,203,632 | -$686,918 | -3.14% | |
| Vanguard Fiduciary Trust Co | 0.00% | 562,670 | $21,696,555 | $21,015,725 | -$680,831 | -3.14% | |
| Davidson Investment Advisors | 0.75% | 478,878 | $18,465,549 | $17,886,093 | -$579,456 | -3.14% | |
| Invesco Ltd. | 0.00% | 474,951 | $18,314,110 | $17,739,420 | -$574,690 | -3.14% | |
| D. E. Shaw & Co., Inc. | 0.01% | 463,086 | $17,856,596 | $17,296,262 | -$560,334 | -3.14% | |
| Principal Financial Group Inc | 0.01% | 408,613 | $15,756,118 | $15,261,696 | -$494,422 | -3.14% | |
| Two Sigma Investments, Lp | 0.01% | 396,596 | $15,292,742 | $14,812,861 | -$479,881 | -3.14% | |
| Aristotle Capital Boston, Llc | 0.90% | 348,476 | $13,437,246 | $13,015,579 | -$421,667 | -3.14% | |
| Nuveen, Llc | 0.00% | 323,328 | $12,467,528 | $12,076,301 | -$391,227 | -3.14% | |
| Public Sector Pension Investment Board | 0.03% | 290,375 | $11,196,860 | $10,845,506 | -$351,354 | -3.14% | |
| Sei Investments Co | 0.01% | 283,210 | $10,920,617 | $10,577,894 | -$342,724 | -3.14% | |
| Fisher Asset Management, Llc | 0.00% | 265,538 | $10,239,167 | $9,917,844 | -$321,323 | -3.14% | |
| Cambria Investment Management, L.P. | 0.49% | 254,704 | $9,821,386 | $9,513,194 | -$308,192 | -3.14% | |
| Rhumbline Advisers | 0.01% | 225,315 | $8,688,123 | $8,415,515 | -$272,608 | -3.14% | |
| Numerai Gp Llc | 0.67% | 213,407 | $8,228,974 | $7,970,751 | -$258,223 | -3.14% | |
| Legal & General Group Plc | 0.00% | 200,880 | $7,745,932 | $7,502,868 | -$243,064 | -3.14% | |
| Harbor Capital Advisors, Inc. | 0.52% | 199,119 | $7,678,000 | $7,437,095 | -$240,905 | -3.14% | |
| Aqr Capital Management Llc | 0.00% | 195,222 | $7,527,761 | $7,291,542 | -$236,219 | -3.14% | |
| Susquehanna Fundamental Investments, Llc | 0.14% | 190,823 | $7,358,135 | $7,127,239 | -$230,896 | -3.14% | |
| Citadel Advisors Llc | 0.00% | 175,090 | $6,751,470 | $6,539,612 | -$211,859 | -3.14% | |
| Granite Investment Partners, Llc | 0.34% | 174,428 | $6,725,944 | $6,514,886 | -$211,058 | -3.14% |
Frequently asked questions about FIBK
Who owns the most FIBK stock?
The largest holders of FIBK are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for FIRST INTERSTATE BANCSYS-A (FIBK).
Is FIBK widely held by superinvestors?
Many widely followed stocks like FIBK appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly FIBK is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.