AMENTUM HOLDINGS INC

Ticker: AMTM CUSIP: 023939101 Class: COM

CANADA PENSION PLAN INVESTMENT BOARD's Holding History (CIK: 0001283718)

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

Q4 2025

Shares 32,994 Value ($000) $957 Avg Close $25.56 Range $21.11 - $31.87

Q3 2025

Shares 8,094 Value ($000) $194 Avg Close $24.35 Range $21.71 - $26.63

Q2 2025

Shares 8,094 Value ($000) $191 Avg Close $20.90 Range $16.01 - $24.33

Q4 2024

Shares 16,854 Value ($000) $354 Avg Close $25.85 Range $18.38 - $34.47

Q3 2024

Shares 188,032 Value ($000) $6,064 Avg Close $28.49 Range $23.58 - $34.50

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	32,994	$957	$25.56	$21.11 - $31.87
Q3 2025	8,094	$194	$24.35	$21.71 - $26.63
Q2 2025	8,094	$191	$20.90	$16.01 - $24.33
Q4 2024	16,854	$354	$25.85	$18.38 - $34.47
Q3 2024	188,032	$6,064	$28.49	$23.58 - $34.50