AMENTUM HOLDINGS INC

Ticker: AMTM CUSIP: 023939101 Class: COM

NORTHERN TRUST CORP's Holding History (CIK: 0000073124)

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

Q4 2025

Shares 952,977 Value ($000) $27,636 Avg Close $25.56 Range $21.11 - $31.87

Q3 2025

Shares 942,945 Value ($000) $22,584 Avg Close $24.35 Range $21.71 - $26.63

Q2 2025

Shares 941,033 Value ($000) $22,218 Avg Close $20.90 Range $16.01 - $24.33

Q1 2025

Shares 854,423 Value ($000) $15,550 Avg Close $20.37 Range $16.95 - $24.30

Q4 2024

Shares 842,219 Value ($000) $17,712 Avg Close $25.85 Range $18.38 - $34.47

Q3 2024

Shares 148,513 Value ($000) $4,790 Avg Close $28.49 Range $23.58 - $34.50

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	952,977	$27,636	$25.56	$21.11 - $31.87
Q3 2025	942,945	$22,584	$24.35	$21.71 - $26.63
Q2 2025	941,033	$22,218	$20.90	$16.01 - $24.33
Q1 2025	854,423	$15,550	$20.37	$16.95 - $24.30
Q4 2024	842,219	$17,712	$25.85	$18.38 - $34.47
Q3 2024	148,513	$4,790	$28.49	$23.58 - $34.50