KNIFE RIVER CORP

Ticker: KNF CUSIP: 498894104 Class: COMMON STOCK

SIMPLEX TRADING, LLC's Holding History (CIK: 0001488542)

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

Q3 2025

Shares 39 Value ($000) $0 Avg Close $81.68 Range $70.80 - $94.73

Q1 2025

Shares 2,472 Value ($000) $0 Avg Close $97.42 Range $84.15 - $108.83

Q4 2023

Shares 1,800 Value ($000) $0 Avg Close $56.89 Range $46.51 - $67.43

Q3 2023

Shares 1,556 Value ($000) $0 Avg Close $47.47 Range $41.53 - $53.26

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	39	$0	$81.68	$70.80 - $94.73
Q1 2025	2,472	$0	$97.42	$84.15 - $108.83
Q4 2023	1,800	$0	$56.89	$46.51 - $67.43
Q3 2023	1,556	$0	$47.47	$41.53 - $53.26