InsiderTrades

Form 4 for FIBK FIRST INTERSTATE BANCSYSTEM INC

Accepted 2025-08-18 00:00:00 ET · period of report 2025-08-14 · accession 0000860413-25-000125 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
2025-08-18 2025-08-14 FIBK Towanda Investments Limited Partnership 10% S - Sale $30.19 -11.8K 5,224 -69% -$356.8K

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2025-08-14 S D 11,818 $30.19 5,224 D — — (F1) The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.07 to $30.23. The reporting person undertakes to provide to First Interstate BancSystem, Inc., any security holder of First Interstate BancSystem, Inc., or the staff of the Securities and Exchange Commission, upon request, the full information regarding the number of shares sold at each separate price within the ranges set forth above.