$FIBK

$37.56 -$0.27 (0.71%) Live

$FIBK Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 95.3M shares outstanding

Who owns FIBK?

By type of holder

Institutions 95.5% Insiders 4.5% Everyone else 0.0%

Concentration Top 10 holders own 56.0%

BlackRock, Inc. 14.4% · State Street Corp 6.6%

Institutional ownership

95.5%

-1.3 pts vs last qtr

Institutional holders

295

+7 vs last qtr

Net shares bought

−1.2M

by institutions in Q2 2026

New / sold out

38 / 31

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Norges Bank NEW +978.2K
D. E. Shaw & Co., Inc. NEW +463.1K

Biggest sellers in Q2 2026

FMR LLC −1.4M
UBS Group AG −699.2K

Who is planning to sell?

Notices of proposed sale, last 12 months

$7.78M

13 notices from 8 people

Shares covered

222.7K

0.23% of the company

Arranged in advance

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Jonathan R. Scott Trust dtd 11/13/2004 Former director $4.94M
John Heyneman JR, Trust Non-Managed Agency 10% owner $944K

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2016–FY2025

+129.0%

+9.64% a year

Each share's claim on the business

−56.3%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

$510M vs $77.7M

over 10 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years73% 3–5 years5% 1–3 years9% Under 1 year13%

Quarterly turnover

6.3%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting FIBK on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
B BlackRock, Inc.	13.7M	14.41%	+253.2K (+1.9%)	≤2021	0.0%
Shares held by quarter Peak holding13.7M (Q2'26) Change over 8 quarters+6.2M Share of the company14.410% BlackRock, Inc.'s full portfolio →
SS State Street Corp	6.3M	6.56%	+359.5K (+6.1%)	≤2021	0.0%
Shares held by quarter Peak holding6.3M (Q2'26) Change over 8 quarters+2.3M Share of the company6.560% State Street Corp's full portfolio →

BlackRock, Inc.

13.7M

% of company

14.41%

Change vs last qtr

+253.2K (+1.9%)

Held since

≤2021

State Street Corp

6.3M

% of company

6.56%

Change vs last qtr

+359.5K (+6.1%)

Held since

≤2021

28 more super investors behind a free account

See every manager holding First Interstate BancSystem, Inc., how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting FIBK on Form N-PORT; together they hold 49.6% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
IC iShares Core S&P Small-Cap ETF iShares Trust	$196M	5.1M	5.34%	0.18%	June 30, 2026
SW SMALLCAP World Fund Inc SMALLCAP World Fund Inc	$132M	3.4M	3.59%	0.14%	June 30, 2026

iShares Core S&P Small-Cap ETF

iShares Trust

Position value

$196M

% of company

5.34%

% of the fund

0.18%

As of

June 30, 2026

SMALLCAP World Fund Inc

Position value

$132M

% of company

3.59%

% of the fund

0.14%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding First Interstate BancSystem, Inc. and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
SJ Scott Jeremy Insider	3.6M	3.76%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company3.760% Scott Jeremy's insider activity →
SJ Scott James R. Jr Insider	2.0M	2.13%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company2.130% Scott James R. Jr's insider activity →

Scott Jeremy

Insider

3.6M

% of company

3.76%

Change vs last qtr

—

Held since

—

Scott James R. Jr

Insider

2.0M

% of company

2.13%

Change vs last qtr

—

Held since

—

26 more holders behind a free account

See every insider and 5%+ holder of First Interstate BancSystem, Inc..

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