FIRST INTST BANCSYSTEM INC

Ticker: FIBK CUSIP: 32055Y201 Class: Common Stock

TWO SIGMA SECURITIES, LLC's Holding History (CIK: 0001450144)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 10,960 Value ($000) $379 Avg Close $32.13 Range $28.33 - $35.91

Q3 2025

Shares 7,513 Value ($000) $239 Avg Close $30.08 Range $26.44 - $33.09

Q3 2024

Shares 20,636 Value ($000) $633 Avg Close $27.10 Range $24.27 - $29.66

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	10,960	$379	$32.13	$28.33 - $35.91
Q3 2025	7,513	$239	$30.08	$26.44 - $33.09
Q3 2024	20,636	$633	$27.10	$24.27 - $29.66