AMENTUM HOLDINGS INC

Ticker: AMTM CUSIP: 023939101 Class: COM

Horizon Investments, LLC's Holding History (CIK: 0001560717)

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

Q3 2025

Shares 16 Value ($000) $0 Avg Close $24.35 Range $21.71 - $26.63

Q2 2025

Shares 113 Value ($000) $3 Avg Close $20.90 Range $16.01 - $24.33

Q4 2024

Shares 1,712 Value ($000) $36 Avg Close $25.85 Range $18.38 - $34.47

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	16	$0	$24.35	$21.71 - $26.63
Q2 2025	113	$3	$20.90	$16.01 - $24.33
Q4 2024	1,712	$36	$25.85	$18.38 - $34.47