Info
Insider Ownership

Insider Trading & Ownership of Mary Michele T. St.

Location: Chantilly, VA
Summary: The estimated net worth of Mary Michele T. St. is at least $1,210,080 dollars as of 18 Feb 2026. Mary Michele T. St. is the Chief Legal Officer & GC of Amentum Holdings, Inc. and owns shares of Amentum Holdings, Inc. (AMTM) stock worth about $1.21M.
Signature: /s/ Indira Lall, Attorney-in-fact
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Ownership of Mary Michele T. St.

Symbol	Company	Relationship	Holdings Value	Past Year Net Change	Change %	Report Period
AMTM	Amentum Holdings, Inc.	Chief Legal Officer & GC	$1,210,080			17 Feb 2026

Insider Transactions Reported by Mary Michele T. St.:

Sym	Company	Class	Transaction	%	Value $	* Price $	Shares	Shares After	Date	Ownership

* An asterisk sign (*) next to the price indicates that the price is likely invalid.