AMENTUM HOLDINGS INC

Ticker: AMTM CUSIP: 023939101 Class: COM

Mariner, LLC's Holding History (CIK: 0001373442)

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

Q4 2025

Shares 48,837 Value ($000) $1,418 Avg Close $25.56 Range $21.11 - $31.87

Q3 2025

Shares 40,642 Value ($000) $973 Avg Close $24.35 Range $21.71 - $26.63

Q2 2025

Shares 42,989 Value ($000) $1,015 Avg Close $20.90 Range $16.01 - $24.33

Q1 2025

Shares 31,729 Value ($000) $577 Avg Close $20.37 Range $16.95 - $24.30

Q4 2024

Shares 38,884 Value ($000) $818 Avg Close $25.85 Range $18.38 - $34.47

Q3 2024

Shares 64,903 Value ($000) $2,093 Avg Close $28.49 Range $23.58 - $34.50

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	48,837	$1,418	$25.56	$21.11 - $31.87
Q3 2025	40,642	$973	$24.35	$21.71 - $26.63
Q2 2025	42,989	$1,015	$20.90	$16.01 - $24.33
Q1 2025	31,729	$577	$20.37	$16.95 - $24.30
Q4 2024	38,884	$818	$25.85	$18.38 - $34.47
Q3 2024	64,903	$2,093	$28.49	$23.58 - $34.50