AMENTUM HOLDINGS INC

Ticker: AMTM CUSIP: 023939101 Class: COM

NATIONAL BANK OF CANADA /FI/'s Holding History (CIK: 0000926171)

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

Q4 2025

Shares 1,032 Value ($000) $30 Avg Close $25.56 Range $21.11 - $31.87

Q3 2025

Shares 1,378 Value ($000) $33 Avg Close $24.35 Range $21.71 - $26.63

Q2 2025

Shares 1,768 Value ($000) $42 Avg Close $20.90 Range $16.01 - $24.33

Q1 2025

Shares 1,240 Value ($000) $23 Avg Close $20.37 Range $16.95 - $24.30

Q4 2024

Shares 2,200 Value ($000) $46 Avg Close $25.85 Range $18.38 - $34.47

Q3 2024

Shares 7 Value ($000) $0 Avg Close $28.49 Range $23.58 - $34.50

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,032	$30	$25.56	$21.11 - $31.87
Q3 2025	1,378	$33	$24.35	$21.71 - $26.63
Q2 2025	1,768	$42	$20.90	$16.01 - $24.33
Q1 2025	1,240	$23	$20.37	$16.95 - $24.30
Q4 2024	2,200	$46	$25.85	$18.38 - $34.47
Q3 2024	7	$0	$28.49	$23.58 - $34.50