KAISER ALUMINUM CORP

Ticker: KALU CUSIP: 483007704 Class: COM PAR $0.01

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q2 2025

Shares 200 Value ($000) $16 Avg Close $66.35 Range $45.18 - $80.04

Q4 2022

Shares 22 Value ($000) $2 Avg Close $70.19 Range $54.19 - $85.75

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2025	200	$16	$66.35	$45.18 - $80.04
Q4 2022	22	$2	$70.19	$54.19 - $85.75