AMENTUM HOLDINGS INC

Ticker: AMTM CUSIP: 023939101 Class: COM

BlackRock, Inc.'s Holding History (CIK: 0002012383)

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

Q4 2025

Shares 17,459,099 Value ($000) $506,314 Avg Close $25.56 Range $21.11 - $31.87

Q3 2025

Shares 17,990,449 Value ($000) $430,871 Avg Close $24.35 Range $21.71 - $26.63

Q2 2025

Shares 18,995,083 Value ($000) $448,474 Avg Close $20.90 Range $16.01 - $24.33

Q1 2025

Shares 18,248,989 Value ($000) $332,132 Avg Close $20.37 Range $16.95 - $24.30

Q4 2024

Shares 16,774,771 Value ($000) $352,773 Avg Close $25.85 Range $18.38 - $34.47

Q3 2024

Shares 8,917,428 Value ($000) $287,587 Avg Close $28.49 Range $23.58 - $34.50

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	17,459,099	$506,314	$25.56	$21.11 - $31.87
Q3 2025	17,990,449	$430,871	$24.35	$21.71 - $26.63
Q2 2025	18,995,083	$448,474	$20.90	$16.01 - $24.33
Q1 2025	18,248,989	$332,132	$20.37	$16.95 - $24.30
Q4 2024	16,774,771	$352,773	$25.85	$18.38 - $34.47
Q3 2024	8,917,428	$287,587	$28.49	$23.58 - $34.50