Insider Transactions Reported by 51 Insiders of FIRST INTERSTATE BANCSYSTEM INC

Symbol: FIBK on Nasdaq
Location: Billings, MT

Quick Takeaways

FIBK - FIRST INTERSTATE BANCSYSTEM INC has 51 insiders with reported activity on this page.
Net insider value flow over the last year: -$20,114,650.
Recent transaction rows are available for direct filing-level review.

What Changed

Buy value: ; sell value: $20,114,650.
Net share flow: -603,074.

Why This Matters

This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.

Source Evidence

Filed on Form 4

Issuer insider activity is sourced from SEC Forms 3, 4, and 5.

See Original Filing

Insider trading overview

Last 12 months

Net insider flow leans to selling over the last 12 months. Net value: -$20,114,650.

Buys

Shares: 0

Insiders: 0

Sells

$20,114,650

Shares: 603,074

Insiders: 8

Net

-$20,114,650

Shares: -603,074

Insiders: -8

Window (months)	Sell shares	Buy $	Sell $	Net $
0-3	339,024	$0	$11,972,770	-$11,972,770
3-6	80,432	$0	$2,577,420	-$2,577,420
6-9	73,618	$0	$2,321,110	-$2,321,110
9-12	110,000	$0	$3,243,350	-$3,243,350

FIRST INTERSTATE BANCSYSTEM INC executives and other stock owners filed with the SEC include:

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
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
Harper Grace 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
Frances Pallas Grieb	Director	$1,303,642			Mixed	01 Jun 2024
Thomas E. Henning	Director	$1,272,129			Mixed	01 Jun 2024
Kirk D. Jensen	General Counsel	$1,204,173			Mixed	16 Mar 2026
David della Camera	Chief Financial Officer	$981,483			Mixed	16 Mar 2026
David L. Jahnke	Director	$836,351			Mixed	01 Jun 2025
Daniel A. Rykhus	Director	$772,870			Mixed	01 Jun 2025
Kristina Robbins	EVP, Chief Operations Officer	$694,852			Mixed	16 Mar 2026
Karlyn M. Knieriem	EVP, Chief Risk Officer	$634,561			Mixed	15 Mar 2024
Patricia L. Moss	Director	$615,402			Mixed	01 Jun 2025
Stephen Mark Lacy	Director	$606,242			Mixed	01 Jun 2025
Lorrie F. Asker	Chief Banking Officer	$574,291			Mixed	15 Mar 2025
Lori Meyer	EVP, Chief Information Officer	$524,993			Mixed	16 Mar 2026
Biff Bowman	Director	$522,557			Mixed	01 Jun 2025
Jodi Delahunt Hubbell	Chief Operating Officer	$470,028			Mixed	15 Mar 2022
Dennis L. Johnson	Director	$456,872			Mixed	01 Jun 2025
Scott Edward Erkonen	EVP, Chief Information Officer	$434,083			Mixed	24 May 2023
Jolyn M. Kanning	Chief Risk Officer	$414,894			Median	29 Apr 2026
Ryan J. Boschee	Chief Credit Officer	$365,062			Median	25 Apr 2026
Christopher L. Shepler	Chief Banking Officer	$363,117			Mixed	15 Mar 2026
Alice S. Cho	Director	$359,619			Mixed	01 Jun 2025
Joyce Ann Phillips	Director	$327,945			Mixed	01 Jun 2025
James Brannen	Director	$271,903			Mixed	01 Jun 2023
Ross E. Leckie	Director	$224,563			Mixed	01 Jun 2022
Dana L. Crandall	Director	$224,056			Mixed	01 Jun 2021
Russell A. Lee	EVP & Chief Banking Officer	$202,347			Mixed	07 Nov 2022
Nathan R. Jones	Chief Risk Officer	$141,383			Mixed	15 Mar 2026
Kade G. Peterson	Chief Information Officer	$113,551			Mixed	21 May 2021
Ashley Hayslip	EVP, Chief Banking Officer	$103,515			Mixed	28 Nov 2022
Philip G. Gaglia	Chief Risk Officer	$63,812			Mixed	17 May 2022
Michael L. Scudder	Director	$59,996			Mixed	27 Aug 2025
Renu Agrawal	Director	$59,980			Mixed	05 Sep 2025

Top shareholders of FIRST INTERSTATE BANCSYSTEM INC (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
BlackRock, Inc.	13F 13D/G	Company	13% from 13D/G	13,614,268	$471,053,680	—	31 Dec 2025	13F 13D/G
VANGUARD GROUP INC	13F	Company	9.9%	10,048,419	$347,675,298	—	31 Dec 2025	13F
STATE STREET CORP	13D/G 13F	STATE STREET CORPORATION · Company	5.3%	5,482,245	$205,693,832	$0	31 Dec 2025	13D/G 13F
WELLINGTON MANAGEMENT GROUP LLP	13F 13D/G	Company	5.6% from 13D/G	5,794,226	$200,480,220	—	31 Dec 2025	13F 13D/G
DIMENSIONAL FUND ADVISORS LP	13F 13D/G	Company	5.2% from 13D/G	5,399,384	$186,822,736	—	31 Dec 2025	13F 13D/G
VANGUARD PORTFOLIO MANAGEMENT LLC	13D/G	Vanguard Portfolio Management	5.5%	5,523,702	$184,491,647	$0	31 Mar 2026	13D/G
FMR LLC	13F 13D/G	Company	5% from 13D/G	4,736,691	$163,889,508	—	31 Dec 2025	13F 13D/G
FIRST INTERSTATE BANK	13F	Company	4.6%	4,665,282	$161,418,757	—	31 Dec 2025	13F
HoldCo Asset Management, LP	13F	Company	3.9%	3,950,107	$136,673,702	—	31 Dec 2025	13F
FRANKLIN MUTUAL ADVISERS LLC	13D/G	—	4%	4,222,302	$134,564,765	$0	30 Sep 2025	13D/G
Jeremy Scott	3/4/5	Director, 10%+ Owner	3.5%	3,516,495	$131,938,891	—	31 Dec 2025	3/4/5
James R. Scott	3/4/5	10%+ Owner	2.5%	2,531,970	$92,822,020	—	31 Dec 2025	3/4/5
Capital International Investors	13F	Company	2.6%	2,673,512	$92,503,515	—	31 Dec 2025	13F
FRANKLIN RESOURCES INC	13F	Company	2.6%	2,599,643	$89,947,649	—	31 Dec 2025	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	2.2%	2,233,930	$77,304,797	—	31 Dec 2025	13F
James R. Scott Jr.	3/4/5	Director, 10%+ Owner	2%	2,030,865	$74,451,510	—	31 Dec 2025	3/4/5
VICTORY CAPITAL MANAGEMENT INC	13F	Company	2.1%	2,076,339	$71,841,330	—	31 Dec 2025	13F
North Reef Capital Management LP	13F	Company	2%	1,974,999	$68,334,965	—	31 Dec 2025	13F
NOMURA ASSET MANAGEMENT INTERNATIONAL INC.	13F	Company	1.9%	1,941,566	$67,186,000	—	31 Dec 2025	13F
UBS Group AG	13F	Company	1.8%	1,870,942	$64,734,593	—	31 Dec 2025	13F
Homer A. Scott Jr.	3/4/5	10%+ Owner	— class O/S missing	1,997,140	$64,188,080	—	05 Sep 2023	3/4/5
BANK OF AMERICA CORP /DE/	13F	Company	1.7%	1,753,844	$60,683,002	—	31 Dec 2025	13F
MORGAN STANLEY	13F	Company	1.6%	1,578,719	$54,623,682	—	31 Dec 2025	13F
JPMORGAN CHASE & CO	13F	Company	1.6%	1,575,118	$54,499,082	—	31 Dec 2025	13F
JENNISON ASSOCIATES LLC	13F	Company	1.3%	1,356,333	$46,929,121	—	31 Dec 2025	13F
John M. Heyneman Jr.	3/4/5	Director, 10%+ Owner	1.5%	1,497,496	$46,504,586	-$2,424,331	21 Nov 2025	3/4/5
MASSACHUSETTS FINANCIAL SERVICES CO /MA/	13F	Company	1.3%	1,340,686	$46,387,736	—	31 Dec 2025	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	1.2%	1,174,698	$40,644,551	—	31 Dec 2025	13F
NORGES BANK	13F	Company	1.1%	1,099,110	$38,029,206	—	31 Dec 2025	13F
CRAMER ROSENTHAL MCGLYNN LLC	13F	Company	1%	1,053,685	$36,457,501	—	31 Dec 2025	13F
Bank of New York Mellon Corp	13F	Company	1%	1,007,344	$34,854,103	—	31 Dec 2025	13F
Harper Grace Scott Trust	3/4/5	10%+ Owner	0.87%	879,520	$31,152,598	-$1,995,462	30 Apr 2026	3/4/5
Harrison William Scott Trust	3/4/5	10%+ Owner	0.87%	879,520	$31,152,598	-$1,995,462	30 Apr 2026	3/4/5
Holland Elizabeth Scott Trust	3/4/5	10%+ Owner	0.87%	879,520	$31,152,598	-$1,995,462	30 Apr 2026	3/4/5
IXL Ltd Liability Co	3/4/5	10%+ Owner	0.87%	879,520	$31,152,598	-$1,995,462	30 Apr 2026	3/4/5
Jonathan R. Scott	3/4/5	10%+ Owner	0.87%	879,520	$31,152,598	-$3,193,561	30 Apr 2026	3/4/5
Jonathan Scott as Trustee of the Jonathan R Scott Trust Dated as of 4/21/04	3/4/5	10%+ Owner	0.87%	879,520	$31,152,598	-$1,995,462	30 Apr 2026	3/4/5
Homer Scott Jr Trust, Homer Scott Jr. & First Interstate Wealth Management Co Trustees	3/4/5	10%+ Owner	— class O/S missing	950,753	$30,557,201	—	14 Dec 2023	3/4/5
NORTHERN TRUST CORP	13F	Company	0.86%	871,651	$30,159,125	—	31 Dec 2025	13F
GOLDMAN SACHS GROUP INC	13F	Company	0.75%	759,629	$26,283,174	—	31 Dec 2025	13F
PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC.	13F	Company	0.72%	723,818	$25,044,097	—	31 Dec 2025	13F
BROWN ADVISORY INC	13F	Company	0.71%	719,667	$24,900,489	—	31 Dec 2025	13F
Leeward Investments, LLC - MA	13F	Company	0.64%	649,318	$22,466,403	—	31 Dec 2025	13F
Julie A. Scott	3/4/5	10%+ Owner	— class O/S missing	613,019	$20,720,042	—	08 Nov 2024	3/4/5
VILLERE ST DENIS J & CO LLC	13F	Company	0.54%	544,914	$18,854,024	—	31 Dec 2025	13F
Aristotle Capital Boston, LLC	13F	Company	0.48%	483,036	$16,713,060	—	31 Dec 2025	13F
DAVIDSON INVESTMENT ADVISORS	13F	Company	0.48%	481,538	$16,661,227	—	31 Dec 2025	13F
SEI INVESTMENTS CO	13F	Company	0.43%	433,462	$14,997,762	—	31 Dec 2025	13F
PRINCIPAL FINANCIAL GROUP INC	13F	Company	0.42%	426,632	$14,761,467	—	31 Dec 2025	13F
Susan Scott Heyneman	3/4/5	10%+ Owner	— class O/S missing	639,256	$14,747,636	—	18 Jul 2022	3/4/5

Recent Insider Transactions by Companies or Individuals for FIRST INTERSTATE BANCSYSTEM INC

Showing up to 300 most recent insider transactions from the last 12 months.

Insider	Symbol	Class	Transaction	%	Value $	* 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

* An asterisk sign (*) next to the price indicates that the price is likely invalid.