Comparable stake leader
BlackRock, Inc.
SEC ownership of FIRST INTERSTATE BANCSYSTEM INC
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000860413.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
30 Apr 2026
- Symbol
- FIBK on Nasdaq
- SEC evidence covered
- 13D/G, 13F, and 3/4/5
- Largest SEC-reported holder
- BlackRock, Inc.
- Latest 13D/G holder
- BlackRock, Inc.
- Latest parsed evidence date
- 30 Apr 2026
- CIK
- 0000860413
- Location
- Billings, MT
Ownership snapshot
2 signals
Issuer
2 identity fields
Ownership snapshot
Top shareholders of FIRST INTERSTATE BANCSYSTEM INC (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BlackRock, Inc.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
30 Apr 2026
13D/G
13F
3/4/5
Lead comparable stake: 13%
13D/G row: BlackRock, Inc.
Showing 1-8 of 50 holder rows.
Quick read
BlackRock, Inc. leads the comparable SEC ownership view at 13%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Comparable ownership
Top 5
BlackRock, Inc.
13%
VANGUARD PORTFOLIO MANAGEMENT LLC
5.5%
STATE STREET CORP
5.3%
DIMENSIONAL FUND ADVISORS LP
5.2%
FMR LLC
5%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13D/G
13F
Company
|
13%
|
$459,838,125
13,290,004 shares
|
+$231,649,389 | 31 Dec 2025 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13D/G
13F
Vanguard Portfolio Management · Company
|
5.5%
|
$184,491,647
5,523,702 shares
|
$0 | 31 Mar 2026 |
| STATE STREET CORP |
13D/G
13F
STATE STREET CORPORATION · Company
|
5.3%
|
$205,693,832
5,482,245 shares
|
$0 | 31 Dec 2025 |
| DIMENSIONAL FUND ADVISORS LP |
13F
13D/G
Company
|
5.2%
from 13D/G
|
$188,065,820
5,630,789 shares
|
— | 31 Mar 2026 |
| FMR LLC |
13D/G
13F
Company
|
5%
|
$162,452,034
5,210,136 shares
|
-$49,145,854 | 30 Jun 2025 |
| FRANKLIN MUTUAL ADVISERS LLC |
13D/G
|
4%
|
$134,564,765
4,222,302 shares
|
$0 | 30 Sep 2025 |
| WELLINGTON MANAGEMENT GROUP LLP |
13D/G
13F
Company
|
4%
|
$133,711,130
3,882,437 shares
|
-$70,016,107 | 31 Mar 2026 |
| Jeremy Scott |
3/4/5
Director, 10%+ Owner
|
3.6%
|
$131,938,891
3,516,495 shares
|
— | 31 Dec 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$20,114,650.
Buys
$0
Insiders: 0
Sells
$20,114,650
Insiders: 8
Net
-$20,114,650
Shares: -603,074
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 603,074
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 339,024 | $0 | $11,972,770 | -$11,972,770 |
| 3-6 | 0 | 5,000 | $0 | $182,315 | -$182,315 |
| 6-9 | 0 | 127,232 | $0 | $4,036,688 | -$4,036,688 |
| 9-12 | 0 | 131,818 | $0 | $3,922,876 | -$3,922,876 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 51 reporting-owner rows connected to FIRST INTERSTATE BANCSYSTEM INC. Open a relationship link for the CIK-to-CIK filing trail.
Rows
51
Largest Forms 3/4/5 holder
Jeremy Scott
Net 12M change
-$20,114,652
Latest report
30 Apr 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Jeremy Scott | Director, 10%+ Owner | $131,938,891 | Mixed | 31 Dec 2025 | ||
| James R. Scott | 10%+ Owner | $92,822,020 | Mixed | 31 Dec 2025 | ||
| James R. Scott Jr. | Director, 10%+ Owner | $74,451,510 | Mixed | 31 Dec 2025 | ||
| Homer A. Scott Jr. | 10%+ Owner | $64,188,080 | Mixed | 05 Sep 2023 | ||
| John M. Heyneman Jr. | Director, 10%+ Owner | $46,504,586 | -$2,424,331 | -5% | Mixed | 21 Nov 2025 |
| Jonathan Scott as Trustee of the Jonathan R Scott Trust Dated as of 4/21/04 | 10%+ Owner | $31,152,598 | -$1,995,462 | -6% | Filing P/S | 30 Apr 2026 |
| Harper Grace Scott Trust | 10%+ Owner | $31,152,598 | -$1,995,462 | -6% | Filing P/S | 30 Apr 2026 |
| IXL Ltd Liability Co | 10%+ Owner | $31,152,598 | -$1,995,462 | -6% | Filing P/S | 30 Apr 2026 |
| Holland Elizabeth Scott Trust | 10%+ Owner | $31,152,598 | -$1,995,462 | -6% | Filing P/S | 30 Apr 2026 |
| Harrison William Scott Trust | 10%+ Owner | $31,152,598 | -$1,995,462 | -6% | Filing P/S | 30 Apr 2026 |
| Jonathan R. Scott | 10%+ Owner | $31,152,598 | -$3,193,561 | -9.3% | Filing P/S | 30 Apr 2026 |
| Homer Scott Jr Trust, Homer Scott Jr. & First Interstate Wealth Management Co Trustees | 10%+ Owner | $30,557,201 | Filing P/S | 14 Dec 2023 | ||
| Julie A. Scott | 10%+ Owner | $20,720,042 | Filing P/S | 08 Nov 2024 | ||
| Susan Scott Heyneman | 10%+ Owner | $14,747,636 | Mixed | 18 Jul 2022 | ||
| Geoffrey D. Scott | 10%+ Owner | $13,259,905 | Mixed | 31 Dec 2025 | ||
| Risa Kae Scott | 10%+ Owner | $10,385,981 | Mixed | 03 Dec 2025 | ||
| Susan Scott Heyneman Trust, Susan Heyneman & First Interstate Wealth Management Co-Trustees | 10%+ Owner | $7,351,065 | -$4,519,450 | -38% | Filing P/S | 01 Dec 2025 |
| Kevin P. Riley | President & CEO, Director | $5,993,994 | Mixed | 31 Jul 2024 | ||
| James A. Reuter | President and CEO, Director | $3,197,198 | Mixed | 16 Mar 2026 | ||
| Marcy D. Mutch | Exec. Vice Pres. & CFO | $2,073,544 | Mixed | 15 Mar 2025 |
Recent insider transactions for FIRST INTERSTATE BANCSYSTEM INC
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Scott Jonathan R | FIBK | Common Stock | Sale | -5.73% | $1,895,112 | $35.42 | -53,504 | 879,520 | 30 Apr 2026 | See Footnote |
| Scott Jonathan R | FIBK | Common Stock | Sale | -5.73% | $1,895,112 | $35.42 | -53,504 | 879,520 | 30 Apr 2026 | See Footnote |
| Scott Jonathan R | FIBK | Common Stock | Sale | -5.73% | $1,895,112 | $35.42 | -53,504 | 879,520 | 30 Apr 2026 | See Footnote |
| Scott Jonathan R | FIBK | Common Stock | Sale | -5.73% | $1,895,112 | $35.42 | -53,504 | 879,520 | 30 Apr 2026 | See Footnote |
| Scott Jonathan R | FIBK | Common Stock | Sale | -5.73% | $1,895,112 | $35.42 | -53,504 | 879,520 | 30 Apr 2026 | See Footnote |
| Jonathan R. Scott | FIBK | Common Stock | Sale | -5.73% | $1,895,112 | $35.42 | -53,504 | 879,520 | 30 Apr 2026 | See Footnote |
| Scott Jonathan R | FIBK | Common Stock | Sale | -0.32% | $100,350 | $33.45 | -3,000 | 933,024 | 26 Mar 2026 | See Footnote |
| Scott Jonathan R | FIBK | Common Stock | Sale | -0.32% | $100,350 | $33.45 | -3,000 | 933,024 | 26 Mar 2026 | See Footnote |
| Scott Jonathan R | FIBK | Common Stock | Sale | -0.32% | $100,350 | $33.45 | -3,000 | 933,024 | 26 Mar 2026 | See Footnote |
| Scott Jonathan R | FIBK | Common Stock | Sale | -0.32% | $100,350 | $33.45 | -3,000 | 933,024 | 26 Mar 2026 | See Footnote |
| Scott Jonathan R | FIBK | Common Stock | Sale | -0.32% | $100,350 | $33.45 | -3,000 | 933,024 | 26 Mar 2026 | See Footnote |
| Jonathan R. Scott | FIBK | Common Stock | Sale | -0.32% | $100,350 | $33.45 | -3,000 | 933,024 | 26 Mar 2026 | See Footnote |
| David della Camera | FIBK | Common Stock | Tax liability | -4.67% | -1,307 | 26,678 | 16 Mar 2026 | Direct | ||
| Kirk D. Jensen | FIBK | Common Stock | Tax liability | -4.03% | -1,375 | 32,731 | 16 Mar 2026 | Direct | ||
| James A. Reuter | FIBK | Common Stock | Tax liability | -5.57% | -5,125 | 86,904 | 16 Mar 2026 | Direct | ||
| Kristina Robbins | FIBK | Common Stock | Tax liability | -6.17% | -1,241 | 18,887 | 16 Mar 2026 | Direct | ||
| Lori Meyer | FIBK | Common Stock | Tax liability | -9.8% | -1,550 | 14,270 | 16 Mar 2026 | Direct | ||
| Christopher L. Shepler | FIBK | Common Stock | Award | 153.1% | 5,971 | 9,870 | 15 Mar 2026 | Direct | ||
| Kristina Robbins | FIBK | Common Stock | Award | 25.1% | 4,044 | 20,128 | 15 Mar 2026 | Direct | ||
| James A. Reuter | FIBK | Common Stock | Award | 51.8% | 31,392 | 92,029 | 15 Mar 2026 | Direct | ||
| Nathan R. Jones | FIBK | Common Stock | Award | 3,843 | 3,843 | 15 Mar 2026 | Direct | |||
| Lori Meyer | FIBK | Common Stock | Award | 23.5% | 3,012 | 15,820 | 15 Mar 2026 | Direct | ||
| Kirk D. Jensen | FIBK | Common Stock | Award | 13.1% | 3,951 | 34,106 | 15 Mar 2026 | Direct | ||
| David della Camera | FIBK | Common Stock | Award | 28.9% | 6,279 | 27,985 | 15 Mar 2026 | Direct | ||
| Jonathan R. Scott | FIBK | Common Stock | Sale | -0.19% | $67,453 | $36.92 | -1,827 | 936,024 | 06 Jan 2026 | See Footnote |
| Jonathan R. Scott | FIBK | Common Stock | Sale | -0.34% | $114,863 | $36.20 | -3,173 | 937,851 | 05 Jan 2026 | See Footnote |
| James R. Scott | FIBK | Common Stock | Gift | 0.02% | 755 | 4,433,211 | 12 Dec 2025 | see footnote | ||
| James R. Scott | FIBK | Common Stock | Gift | -0.02% | -755 | 4,433,966 | 12 Dec 2025 | see footnote | ||
| Jeremy Scott | FIBK | Common Stock | Gift | 0.02% | 550 | 3,513,549 | 08 Dec 2025 | See footnote | ||
| Jeremy Scott | FIBK | Common Stock | Gift | 18.7% | 550 | 3,496 | 08 Dec 2025 | Direct | ||
| James R. Scott | FIBK | Common Stock | Gift | 0.02% | 755 | 4,433,211 | 08 Dec 2025 | see footnote | ||
| James R. Scott | FIBK | Common Stock | Gift | -0.02% | -755 | 4,433,966 | 08 Dec 2025 | see footnote | ||
| Geoffrey D. Scott | FIBK | Common stock | Gift | 26.6% | 550 | 2,615 | 08 Dec 2025 | By Spouse | ||
| Geoffrey D. Scott | FIBK | Common stock | Gift | 0.49% | 550 | 113,926 | 08 Dec 2025 | Direct | ||
| Risa Kae Scott | FIBK | Common Stock | Gift | -0.92% | -3,000 | 322,546 | 03 Dec 2025 | See Footnote | ||
| Susan Scott Heyneman Trust, Susan Heyneman & First Interstate Wealth Management Co-Trustees | FIBK | Common Stock | Sale | -4.27% | $327,500 | $32.75 | -10,000 | 224,460 | 01 Dec 2025 | See Footnote |
| Christopher L. Shepler | FIBK | Common Stock | Award | 68.9% | 1,591 | 3,899 | 24 Nov 2025 | Direct | ||
| John M. Heyneman Jr. | FIBK | Common Stock | Sale | -2.11% | $944,305 | $31.03 | -30,432 | 1,414,636 | 21 Nov 2025 | see footnote |
| John M. Heyneman Jr. | FIBK | Common Stock | Sale | -33.2% | $482,100 | $32.14 | -15,000 | 30,154 | 11 Nov 2025 | By Bench Ranch LLC |
| John M. Heyneman Jr. | FIBK | Common Stock | Sale | -29.6% | $641,200 | $32.06 | -20,000 | 47,482 | 10 Nov 2025 | By Awe' LLC |
| Susan Scott Heyneman Trust, Susan Heyneman & First Interstate Wealth Management Co-Trustees | FIBK | Common Stock | Sale | -4.09% | $309,900 | $30.99 | -10,000 | 234,460 | 03 Nov 2025 | See Footnote |
| Jonathan R. Scott | FIBK | Common Stock | Sale | -0.51% | $150,096 | $31.27 | -4,800 | 941,024 | 03 Nov 2025 | See Footnote |
| Jonathan R. Scott | FIBK | Common Stock | Sale | -0.73% | $224,630 | $32.09 | -7,000 | 945,824 | 29 Oct 2025 | See Footnote |
| Jonathan R. Scott | FIBK | Common Stock | Sale | -0.07% | $21,687 | $31.66 | -685 | 952,824 | 09 Oct 2025 | See Footnote |
| Jonathan R. Scott | FIBK | Common Stock | Sale | -0.58% | $179,256 | $32.01 | -5,600 | 953,509 | 08 Oct 2025 | See Footnote |
| Jonathan R. Scott | FIBK | Common Stock | Sale | -1.41% | $440,114 | $32.09 | -13,715 | 959,109 | 07 Oct 2025 | See Footnote |
| Susan Scott Heyneman Trust, Susan Heyneman & First Interstate Wealth Management Co-Trustees | FIBK | Common Stock | Sale | -3.93% | $315,900 | $31.59 | -10,000 | 244,460 | 01 Oct 2025 | See Footnote |
| John M. Heyneman Jr. | FIBK | Common Stock | Will/Inheritance | 67,482 | 67,482 | 17 Sep 2025 | By Awe' LLC | |||
| Susan Scott Heyneman Trust, Susan Heyneman & First Interstate Wealth Management Co-Trustees | FIBK | Common Stock | Will/Inheritance | -21% | -67,482 | 254,460 | 17 Sep 2025 | See Footnote | ||
| John M. Heyneman Jr. | FIBK | Common Stock | Will/Inheritance | 45,154 | 45,154 | 10 Sep 2025 | By Bench Ranch LLC |
* marks a reported price that did not pass the local price check.