NASDAQ:FIBK

First Interstate Bancsystem Stock Insider Trading

Financial Services > Banks - Regional

Buy FIBK

*Your capital is at risk

$36.71

+0.280 (+0.769%)

At Close: Jun 22, 2026

First Interstate BancSystem Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be negative at -87.32. In total, the insiders bought 304.18K and sold 958.1K FIBK shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power (Last 100 transactions)	-87.32
● Buy	304.18K shares
● Sell	958.1K shares
56% Buy Activity Weak Negative Correlation
Buy Signal Low Confidence Jun 01, 2026 Analysis Breakdown: Signal is highly questionable due to a strongly contradictory negative Insider Power Score of -87.32. Confidence increased due to high data reliability score of 100.

Historical Insider Trades

Date	Type	Person	Role	Amount
Dec 08, 2025 Buy	Common stock G-Gift	Scott Geoffrey D 10 Percent Owner	10% Owner	550 Value: $18.6K
Dec 03, 2025 Sell	Common Stock G-Gift	Scott Risa Kae 10 Percent Owner	10% Owner	3 000 Value: $0
Dec 01, 2025 Sell	Common Stock S-Sale	Susan Scott Heyneman Trust, Susan Heyneman & First Interstate Wealth Management Co-trustees 10 Percent Owner	10% Owner	10 000 Value: $327.5K
Nov 24, 2025 Buy	Common Stock A-Award	Shepler Christopher L. Chief Banking Officer	Officer	1 591 Value: $50.0K
Nov 21, 2025 Sell	Common Stock S-Sale	Heyneman John M Jr	Director	30 432 Value: $944.3K
Nov 12, 2025 Buy	Common Stock J-Other	Heyneman John M Jr	Director	0 Value: $0
Nov 11, 2025 Sell	Common Stock S-Sale	Heyneman John M Jr	Director	15 000 Value: $482.1K
Nov 10, 2025 Sell	Common Stock S-Sale	Heyneman John M Jr	Director	20 000 Value: $641.2K
Nov 03, 2025 Sell	Common Stock S-Sale	Susan Scott Heyneman Trust, Susan Heyneman & First Interstate Wealth Management Co-trustees 10 Percent Owner	10% Owner	10 000 Value: $309.9K
Nov 03, 2025 Sell	Common Stock S-Sale	Scott Jonathan R 10 Percent Owner	10% Owner	4 800 Value: $150.1K
Oct 29, 2025 Sell	Common Stock S-Sale	Scott Jonathan R 10 Percent Owner	10% Owner	7 000 Value: $224.6K
Oct 09, 2025 Sell	Common Stock S-Sale	Scott Jonathan R 10 Percent Owner	10% Owner	685 Value: $21.7K
Oct 09, 2025 Sell	Common Stock S-Sale	Scott Jonathan R 10 Percent Owner	10% Owner	685 Value: $21.7K
Oct 08, 2025 Sell	Common Stock S-Sale	Scott Jonathan R 10 Percent Owner	10% Owner	5 600 Value: $179.3K
Oct 08, 2025 Sell	Common Stock S-Sale	Scott Jonathan R 10 Percent Owner	10% Owner	5 600 Value: $179.3K
Oct 07, 2025 Sell	Common Stock S-Sale	Scott Jonathan R 10 Percent Owner	10% Owner	13 715 Value: $440.1K
Oct 07, 2025 Sell	Common Stock S-Sale	Scott Jonathan R 10 Percent Owner	10% Owner	13 715 Value: $440.1K
Oct 01, 2025 Sell	Common Stock S-Sale	Susan Scott Heyneman Trust, Susan Heyneman & First Interstate Wealth Management Co-trustees 10 Percent Owner	10% Owner	10 000 Value: $315.9K
Oct 01, 2025 Sell	Common Stock S-Sale	Susan Scott Heyneman Trust, Susan Heyneman & First Interstate Wealth Management Co-trustees 10 Percent Owner	10% Owner	10 000 Value: $315.9K
Sep 17, 2025 Buy	Common Stock W-Will	Heyneman John M Jr	Director	67 482 Value: $2.19M
Sep 17, 2025 Sell	Common Stock W-Will	Susan Scott Heyneman Trust, Susan Heyneman & First Interstate Wealth Management Co-trustees 10 Percent Owner	10% Owner	67 482 Value: $0
Sep 17, 2025 Sell	Common Stock W-Will	Susan Scott Heyneman Trust, Susan Heyneman & First Interstate Wealth Management Co-trustees 10 Percent Owner	10% Owner	67 482 Value: $0
Sep 10, 2025 Buy	Common Stock W-Will	Heyneman John M Jr	Director	45 154 Value: $1.45M
Sep 10, 2025 Buy	Common Stock A-Award	Shepler Christopher L. Chief Banking Officer	Officer	2 308 Value: $75.0K
Sep 10, 2025 Buy	Common Stock	Shepler Christopher L. Chief Banking Officer	Officer	0 Value: $0

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%^* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks