AMENTUM HOLDINGS INC

Ticker: AMTM CUSIP: 023939101 Class: COM

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0001081019)

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

Q4 2025

Shares 149,912 Value ($000) $4,347 Avg Close $25.56 Range $21.11 - $31.87

Q3 2025

Shares 162,330 Value ($000) $3,888 Avg Close $24.35 Range $21.71 - $26.63

Q2 2025

Shares 162,297 Value ($000) $3,832 Avg Close $20.90 Range $16.01 - $24.33

Q1 2025

Shares 131,174 Value ($000) $2,387 Avg Close $20.37 Range $16.95 - $24.30

Q4 2024

Shares 131,419 Value ($000) $2,764 Avg Close $25.85 Range $18.38 - $34.47

Q3 2024

Shares 216,601 Value ($000) $6,985 Avg Close $28.49 Range $23.58 - $34.50

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	149,912	$4,347	$25.56	$21.11 - $31.87
Q3 2025	162,330	$3,888	$24.35	$21.71 - $26.63
Q2 2025	162,297	$3,832	$20.90	$16.01 - $24.33
Q1 2025	131,174	$2,387	$20.37	$16.95 - $24.30
Q4 2024	131,419	$2,764	$25.85	$18.38 - $34.47
Q3 2024	216,601	$6,985	$28.49	$23.58 - $34.50