Arkolith/Insider Trading/FIBK/Form 4

Susan Scott Heyneman Trust, Susan Heyneman & First Interstate Wealth Management Co-Trustees

10% OwnerFIRST INTERSTATE BANCSYSTEM INC (FIBK) · full profile →Form 4 · filed Oct 3, 2025
Net Selling
Open-Market Buys
$0
Open-Market Sells
$316K
Net Open-Market Flow
-$316K
Transactions
4
4 non-derivative · 0 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Oct 1, 2025Sell(S)10K$31.59$316K244K
Sep 17, 2025Inheritance(W)67K—$0254K
Sep 10, 2025Inheritance(W)45K—$0322K
Sep 9, 2025Inheritance(W)152K—$0367K

Transaction Codes

S
Open-market sale
W
Acquisition / disposition by will

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0001493152-25-016804) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML