AMENTUM HOLDINGS INC

Ticker: AMTM CUSIP: 023939101 Class: COM

SECURITY NATIONAL BANK OF SIOUX CITY IOWA /IA/'s Holding History (CIK: 0000894309)

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

Q4 2025

Shares 19,289 Value ($000) $559 Avg Close $25.56 Range $21.11 - $31.87

Q3 2025

Shares 19,331 Value ($000) $463 Avg Close $24.35 Range $21.71 - $26.63

Q2 2025

Shares 19,273 Value ($000) $455 Avg Close $20.90 Range $16.01 - $24.33

Q1 2025

Shares 17,069 Value ($000) $311 Avg Close $20.37 Range $16.95 - $24.30

Q4 2024

Shares 15,269 Value ($000) $321 Avg Close $25.85 Range $18.38 - $34.47

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	19,289	$559	$25.56	$21.11 - $31.87
Q3 2025	19,331	$463	$24.35	$21.71 - $26.63
Q2 2025	19,273	$455	$20.90	$16.01 - $24.33
Q1 2025	17,069	$311	$20.37	$16.95 - $24.30
Q4 2024	15,269	$321	$25.85	$18.38 - $34.47