AMENTUM HOLDINGS INC

Ticker: AMTM CUSIP: 023939101 Class: COM

BRIGHTLINE CAPITAL MANAGEMENT, LLC's Holding History (CIK: 0001432450)

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

Q4 2025

Shares 1,392,000 Value ($000) $40,368 Avg Close $25.56 Range $21.11 - $31.87

Q3 2025

Shares 1,200,000 Value ($000) $28,740 Avg Close $24.35 Range $21.71 - $26.63

Q2 2025

Shares 1,000,000 Value ($000) $23,610 Avg Close $20.90 Range $16.01 - $24.33

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,392,000	$40,368	$25.56	$21.11 - $31.87
Q3 2025	1,200,000	$28,740	$24.35	$21.71 - $26.63
Q2 2025	1,000,000	$23,610	$20.90	$16.01 - $24.33