AMENTUM HOLDINGS INC

Ticker: AMTM CUSIP: 023939101 Class: COM

ALLIANCEBERNSTEIN L.P.'s Holding History (CIK: 0001109448)

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

Q4 2025

Shares 71,273 Value ($000) $2,067 Avg Close $25.56 Range $21.11 - $31.87

Q3 2025

Shares 169,726 Value ($000) $4,065 Avg Close $24.35 Range $21.71 - $26.63

Q2 2025

Shares 348,684 Value ($000) $8,232 Avg Close $20.90 Range $16.01 - $24.33

Q1 2025

Shares 55,179 Value ($000) $1,004 Avg Close $20.37 Range $16.95 - $24.30

Q4 2024

Shares 48,053 Value ($000) $1,011 Avg Close $25.85 Range $18.38 - $34.47

Q3 2024

Shares 142,646 Value ($000) $4,600 Avg Close $28.49 Range $23.58 - $34.50

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	71,273	$2,067	$25.56	$21.11 - $31.87
Q3 2025	169,726	$4,065	$24.35	$21.71 - $26.63
Q2 2025	348,684	$8,232	$20.90	$16.01 - $24.33
Q1 2025	55,179	$1,004	$20.37	$16.95 - $24.30
Q4 2024	48,053	$1,011	$25.85	$18.38 - $34.47
Q3 2024	142,646	$4,600	$28.49	$23.58 - $34.50