AMENTUM HOLDINGS INC

Ticker: AMTM CUSIP: 023939101 Class: COM

MARSHALL WACE, LLP's Holding History (CIK: 0001318757)

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

Q4 2025

Shares 35,084 Value ($000) $1,017 Avg Close $25.56 Range $21.11 - $31.87

Q2 2025

Shares 74,831 Value ($000) $1,767 Avg Close $20.90 Range $16.01 - $24.33

Q1 2025

Shares 147,352 Value ($000) $2,682 Avg Close $20.37 Range $16.95 - $24.30

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	35,084	$1,017	$25.56	$21.11 - $31.87
Q2 2025	74,831	$1,767	$20.90	$16.01 - $24.33
Q1 2025	147,352	$2,682	$20.37	$16.95 - $24.30