AMENTUM HOLDINGS INC

Ticker: AMTM CUSIP: 023939101 Class: COM

JANE STREET GROUP, LLC's Holding History (CIK: 0001595888)

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

Q4 2025

Shares 10,809 Value ($000) $313 Avg Close $25.56 Range $21.11 - $31.87

Q3 2025

Shares 301,261 Value ($000) $7,215 Avg Close $24.35 Range $21.71 - $26.63

Q1 2025

Shares 601,760 Value ($000) $10,952 Avg Close $20.37 Range $16.95 - $24.30

Q4 2024

Shares 27,490 Value ($000) $578 Avg Close $25.85 Range $18.38 - $34.47

Q3 2024

Shares 57,147 Value ($000) $1,843 Avg Close $28.49 Range $23.58 - $34.50

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	10,809	$313	$25.56	$21.11 - $31.87
Q3 2025	301,261	$7,215	$24.35	$21.71 - $26.63
Q1 2025	601,760	$10,952	$20.37	$16.95 - $24.30
Q4 2024	27,490	$578	$25.85	$18.38 - $34.47
Q3 2024	57,147	$1,843	$28.49	$23.58 - $34.50