Barbara Loughran - 06 Feb 2026 Form 4 Insider Report for Amentum Holdings, Inc. (AMTM)

Source evidence Original filing metadata and source links for verification. 5 source fields
SEC form
4
Accepted by SEC
10 Feb 2026, 16:08:04 UTC
Prior SEC filing
16 Jun 2025
Next SEC filing
15 Jun 2026
Source filing
View source filing
Reporting owner 1 detail
Reporting owner signature
/s/ Indira Lall, Attorney-in-fact

Key filing fact

Barbara Loughran filed Form 4 for Amentum Holdings, Inc. (AMTM) on 10 Feb 2026.

Key facts

  • This page summarizes Barbara Loughran's Form 4 filing for Amentum Holdings, Inc. (AMTM).
  • 1 reported transaction and 0 derivative rows are listed below.
  • Accepted by SEC: 10 Feb 2026, 16:08.

Change

  • Previous filing in this sequence was filed on 16 Jun 2025.
  • Current net transaction value: $0.

Research use

  • This tells you what this filing adds before you inspect full transaction and derivative tables.
  • You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001778333 Primary reporting owner

Loughran Barbara

Relationship
Director
Address
C/O AMENTUM HOLDINGS, INC., 4800 WESTFIELDS BOULEVARD, SUITE 400, CHANTILLY
Signature
/s/ Indira Lall, Attorney-in-fact
Signature date
10 Feb 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

AMTM transaction

Common Stock

Award

Transaction value
$0
Shares
+5,062
Change %
+110%
Price
$0.000000
Shares after
9,662
Date
06 Feb 2026
Ownership
Direct
Footnotes
F1
* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

The restricted stock units shall vest on the date of the next annual meeting of stockholders of the Issuer.

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