AMENTUM HOLDINGS INC

Ticker: AMTM CUSIP: 023939101 Class: COM

NATIXIS ADVISORS, L.P.'s Holding History (CIK: 0001018331)

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

Q4 2025

Shares 57,593 Value ($000) $2 Avg Close $25.56 Range $21.11 - $31.87

Q3 2025

Shares 66,664 Value ($000) $2 Avg Close $24.35 Range $21.71 - $26.63

Q2 2025

Shares 67,077 Value ($000) $2 Avg Close $20.90 Range $16.01 - $24.33

Q1 2025

Shares 56,858 Value ($000) $1 Avg Close $20.37 Range $16.95 - $24.30

Q4 2024

Shares 23,172 Value ($000) $0 Avg Close $25.85 Range $18.38 - $34.47

Q3 2024

Shares 200,665 Value ($000) $6 Avg Close $28.49 Range $23.58 - $34.50

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	57,593	$2	$25.56	$21.11 - $31.87
Q3 2025	66,664	$2	$24.35	$21.71 - $26.63
Q2 2025	67,077	$2	$20.90	$16.01 - $24.33
Q1 2025	56,858	$1	$20.37	$16.95 - $24.30
Q4 2024	23,172	$0	$25.85	$18.38 - $34.47
Q3 2024	200,665	$6	$28.49	$23.58 - $34.50