KAISER ALUMINUM CORP

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

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP's Holding History (CIK: 0001164508)

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

Q4 2025

Shares 271,749 Value ($000) $31,213 Avg Close $94.44 Range $74.45 - $118.43

Q3 2025

Shares 70,336 Value ($000) $5,427 Avg Close $78.15 Range $70.43 - $94.80

Q2 2025

Shares 24,067 Value ($000) $1,923 Avg Close $66.35 Range $45.18 - $80.04

Q2 2024

Shares 63,514 Value ($000) $6 Avg Close $86.94 Range $79.83 - $95.90

Q1 2024

Shares 40,795 Value ($000) $4 Avg Close $64.90 Range $54.61 - $84.11

Q1 2017

Shares 76,793 Value ($000) $6,136 Avg Close $59.37 Range $55.84 - $64.69

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	271,749	$31,213	$94.44	$74.45 - $118.43
Q3 2025	70,336	$5,427	$78.15	$70.43 - $94.80
Q2 2025	24,067	$1,923	$66.35	$45.18 - $80.04
Q2 2024	63,514	$6	$86.94	$79.83 - $95.90
Q1 2024	40,795	$4	$64.90	$54.61 - $84.11
Q1 2017	76,793	$6,136	$59.37	$55.84 - $64.69