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DetentionReceipts

Corporate case file · Public company

Amentum

What public records establish about Amentum Holdings, Inc.: a public issuer created in a 2024 spin-and-merger transaction; two separately identified subsidiaries in the Camp East Montana award chain; current directors and executives; selected corporate filings; and the ownership, performance, and detention-specific financial questions the public record does not yet answer.

  • Delaware corporation
  • SEC CIK 0002011286
  • NYSE: AMTM
  • Principal executive office: Chantilly, VA
  • Reviewed August 24, 2026

What these records do not establish
That Amentum Holdings, Inc. receives, performs, or is paid under the Amentum Services award. That PAE Applied Technologies LLC is the immediate legal parent of Amentum Services, receives award funds, or performs work. That any subsidiary inherits the issuer's ticker or public-company status. That holding a detention, transportation, and medical-services contract makes Amentum Services the facility operator. A family award total, consolidated detention revenue, margin, backlog, or profit. That the 2022 PAE acquisition or 2024 public-company transaction was funded by or caused the detention award. That any director or executive participated in the Camp East Montana procurement or performance. A complete Amentum legal-entity or detention-contract universe.

01

Who this company is on the record

Identity, public-company status and security identity, as published in the cited filings.

Legal name
Amentum Holdings, Inc.
Display name
Amentum
Legal form and jurisdiction
corporation · Delaware
Lifecycle status
active
SEC CIK
0002011286

U.S. Securities and Exchange Commission

Also filed as
Amentum · Amentum Holdings

Spellings and brands carried for the same legal entity in the cited records. A different spelling is not a different company, and a brand is not a subsidiary.

Principal executive office
4800 Westfields Boulevard, Suite 400, Chantilly, VA 20151

Corporate office as published in the cited filings. Not a detention facility.

Capital status as of February 10, 2026
publicly traded issuer

The annual-meeting Form 8-K identifies Amentum Holdings, Inc. common stock as registered on the New York Stock Exchange under AMTM.

Security identity
New York Stock Exchange: AMTM

Common Stock, $0.01 par value · listed · MIC XNYS · USD

Completeness
Partial dossier

Reviewed scope covers current issuer identity and security, Amentum Services and PAE Applied Technologies identities, three source-bounded relationships, current board and executive roles, six filings, two corporate-history events, one exact child award, and one correction. It is not a complete subsidiary, ownership, award, facility-role, legal, oversight, or detention-financial census. Reviewed August 24, 2026.

Company websiteInvestor relationsA company website is a party source, not independent verification.

What this does not establish

Security identity only. This dossier publishes no live or historical quote, market capitalization, trading volume, return, or investment recommendation.

U.S. Securities and Exchange CommissionU.S. Securities and Exchange CommissionU.S. Securities and Exchange CommissionAmentum
02

Disclosed corporate structure

Legal entities listed in reviewed SEC exhibits. A listed subsidiary is not automatically an award recipient, facility operator, property owner, or publicly traded company.

Listed subsidiaries (2)

Recorded between listed entities (1)

03

Leadership and board

Names, titles and dates exactly as the cited records publish them. A title establishes no participation in a contract, a subsidiary's work, or a government decision.

Board recorded at the annual meeting (14)

Names and titles as published in the cited proxy statement and voting-results filing.

Executive roles at the review date (7)

Titles as published. A role establishes no participation in a contract, lobbying contact, contribution, or government decision.

U.S. Securities and Exchange Commission

  • John Heller

    Chief Executive Officer

    Current at the review date · From September 27, 2024

  • Stephen A. Arnette

    Chief Operating Officer

    Current at the review date · From September 27, 2024

  • Travis B. Johnson

    Chief Financial Officer

    Current at the review date · From September 27, 2024

  • Sean Mullen

    Chief Growth Officer

    Current at the review date · From September 27, 2024

  • Jill Bruning

    Chief Technology Officer

    Current at the review date · From September 27, 2024

  • Darren Burton

    Chief People Officer

    Current at the review date · From December 1, 2024

  • Michele T. St. Mary

    Chief Legal Officer

    Current at the review date · From February 1, 2025

04

Selected corporate filings

Filings selected for this dossier. This is not the issuer's complete SEC filing history.

  • 10-KFiled December 17, 2024

    Accession 0002011286-24-000072 · Period September 27, 2024 · Not an amendment · Items Item 1, Item 8

    SEC filingSEC filing · Exhibit 21.1 (Expected Subsidiaries of Combined Co Immediately Following the Merger)

    Historical transaction reporting does not make predecessor and current entities interchangeable.

  • 10-KFiled November 25, 2025

    Accession 0001628280-25-053993 · Period October 3, 2025 · Not an amendment · Items Item 1, Item 8

    SEC filingSEC filing · Exhibit 21.1 (Subsidiaries of the Registrant)

    Consolidated reporting does not allocate detention revenue or responsibility to a particular subsidiary.

  • DEF 14AFiled December 19, 2025

    Accession 0001104659-25-123111 · Period February 6, 2026 · Not an amendment

    SEC filing

    The pre-meeting committee table is not silently carried forward after the annual meeting.

  • 8-KFiled February 10, 2026

    Accession 0001628280-26-006679 · Period February 6, 2026 · Not an amendment · Items 5.07

    SEC filing

    Election does not establish post-meeting committee assignments or contract involvement.

  • 10-QFiled May 12, 2026

    Accession 0001628280-26-034156 · Period April 3, 2026 · Not an amendment

    SEC filing

    The filing does not establish detention-specific results.

  • 8-KFiled April 28, 2026

    Accession 0002011286-26-000011 · Period April 24, 2026 · Not an amendment · Items 1.01

    SEC filingSEC filing · Exhibit 10.1 (First Amendment to Credit Agreement)

    Co-borrower status does not establish immediate ownership or detention-award performance.

05

Selected corporate events

Each amount keeps its own meaning and its own line. A sale price, an accounting gain, a repayment and a repurchase are different objects and are never added together.

  • Legacy Amentum completed its acquisition of PAE Incorporated

    business acquisition · closed · Event February 15, 2022

    Recorded for Amentum Holdings, Inc.

    Amentum reported closing the acquisition of PAE Incorporated on February 15, 2022 for an all-cash transaction value of approximately $1.9 billion, including assumed debt and certain fees.

    Company-reported transaction value including assumed debt and certain fees
    $1,900,000,000.00 USD

    Source-reported · Period open → February 15, 2022

    Approximately $1.9 billion, reported by the acquiring company; not federal spending and not a value assigned to PAE Applied Technologies LLC.

    Does not establish the current immediate chain between PAE Applied Technologies LLC and Amentum Services, or connect the acquisition price to a federal award.

    Amentum

  • Reverse Morris Trust transaction created the public Amentum issuer

    other · closed · Event September 27, 2024

    Recorded for Amentum Holdings, Inc.

    On September 27, 2024, the Jacobs CMS business was spun off and merged with Legacy Amentum; the surviving company was renamed Amentum Holdings, Inc. and began NYSE trading under AMTM on September 30.

    Pre-spin cash dividend paid by CMS to Jacobs, as reported in the proxy and Form 10-K
    $911,000,000.00 USD

    Source-reported · Period open → September 27, 2024

    Source-reported transaction component; not a purchase price, federal expenditure, detention amount, or award value.

    Does not establish that the transaction or dividend relates to detention spending or the Camp East Montana award.

    U.S. Securities and Exchange CommissionU.S. Securities and Exchange Commission
06

Exact related award recipients

Award records are held against the exact recipient named on the award, not against the corporate family. No figure on this page is combined across the family.

This project holds no federal award record for Amentum Holdings, Inc. itself. The represented Camp East Montana award belongs to Amentum Services, Inc. This is not an amount of zero and the child award is not inherited by the issuer.

Reviewed records place the following award recipients under this company. Each keeps its own award figures, its own facilities and its own page.

  • Amentum

    AMENTUM SERVICES, INC.

    1 award record(s) held on that recipient's own page

    Amentum Services, Inc. is listed among the registrant's subsidiaries in the 2025 Exhibit 21.1.

07

What remains unresolved

Questions the reviewed records do not answer, with the evidence that is missing and where we are looking for it.

What this does not establish

An open question records missing evidence. It is not a finding.

corporate structure

  • What is the complete immediate ownership chain among Amentum Holdings, PAE Applied Technologies, and Amentum Services?

    Why it matters
    SEC Exhibit 21 lists both child entities under the issuer, while USAspending reports PAE Applied Technologies as parent recipient above Amentum Services for one award.
    Missing evidence
    Intermediate holding companies; Direct versus indirect ownership; Ownership percentages; Current member/shareholder records
    Where we are looking
    SEC guarantor exhibits; Credit agreement schedules; State corporate records; Company legal-entity chart
    Searches recorded
    • August 24, 2026 — Reviewed SEC, company, USAspending, and live-branch records: What is the complete immediate ownership chain among Amentum Holdings, PAE Applied Technologies, and Amentum Services? (partial). The reviewed records establish family membership and a source-specific award parent field, but not the complete immediate chain.
    Status
    partially answered

    An open question records a gap in reviewed evidence. It is not a finding that a missing relationship, event, conflict, or misconduct exists.

award identity

  • Why does the Camp East Montana award report PAE Applied Technologies LLC as parent recipient for Amentum Services, Inc.?

    Why it matters
    The field may reflect a current hierarchy, a SAM registration hierarchy, or an administrative record that differs from the legal intermediate chain.
    Missing evidence
    SAM registration history; USAspending/FPDS raw parent-recipient history; Responsibility and ownership records; Any novation or change-of-name agreement
    Where we are looking
    SAM.gov; USAspending raw API snapshots; FPDS; ICE contract file
    Searches recorded
    • August 24, 2026 — Reviewed SEC, company, USAspending, and live-branch records: Why does the Camp East Montana award report PAE Applied Technologies LLC as parent recipient for Amentum Services, Inc.? (partial). The field is observed and exact; its legal and operational meaning remains unresolved.
    Status
    partially answered

    An open question records a gap in reviewed evidence. It is not a finding that a missing relationship, event, conflict, or misconduct exists.

award coverage

  • What is the complete detention-related prime and subaward universe for exact Amentum-family entities?

    Why it matters
    The branch currently represents one Amentum Services contract; a family or brand search would be overinclusive.
    Missing evidence
    Exact-entity prime awards; Subawards; Historical PAE and predecessor awards; Current bids and solicitations
    Where we are looking
    USAspending; FPDS; SAM.gov; ICE procurement files
    Searches recorded
    • August 24, 2026 — Reviewed SEC, company, USAspending, and live-branch records: What is the complete detention-related prime and subaward universe for exact Amentum-family entities? (partial). One exact Amentum Services award is represented; completeness is not established.
    Status
    partially answered

    An open question records a gap in reviewed evidence. It is not a finding that a missing relationship, event, conflict, or misconduct exists.

facility roles

  • Which exact legal entities perform detention, transportation, medical, management, and subcontracted work at Camp East Montana?

    Why it matters
    The award names Amentum Services as recipient and lists multiple service categories, but does not allocate work among affiliates or subcontractors.
    Missing evidence
    Executed statement of work; Subcontractor list; Staffing plan; Invoices; Responsibility matrix
    Where we are looking
    ICE contract file; USAspending/FPDS attachments; Records requests; Company subcontract disclosures
    Searches recorded
    • August 24, 2026 — Reviewed SEC, company, USAspending, and live-branch records: Which exact legal entities perform detention, transportation, medical, management, and subcontracted work at Camp East Montana? (partial). The exact recipient and broad award scope are established; division of work is not.
    Status
    partially answered

    An open question records a gap in reviewed evidence. It is not a finding that a missing relationship, event, conflict, or misconduct exists.

financial disclosure

  • How much consolidated revenue, profit, backlog, or margin is attributable to detention-related work?

    Why it matters
    Issuer financial statements are consolidated across broad government and commercial businesses.
    Missing evidence
    Detention-specific revenue; Contract margin; Backlog allocation; Subsidiary segment reporting
    Where we are looking
    Company disclosures; Contract invoices; Government payment data; Records requests
    Searches recorded
    • August 24, 2026 — Reviewed SEC, company, USAspending, and live-branch records: How much consolidated revenue, profit, backlog, or margin is attributable to detention-related work? (not-found). No detention-specific consolidated financial allocation was found in the reviewed sources.
    Status
    open

    An open question records a gap in reviewed evidence. It is not a finding that a missing relationship, event, conflict, or misconduct exists.

governance

  • What were Amentum's board committee assignments after the February 6, 2026 annual meeting?

    Why it matters
    The proxy's committee table predates the election; the annual-meeting Form 8-K confirms directors but not committee assignments.
    Missing evidence
    Post-meeting committee roster; Board committee webpage snapshot; Later proxy or 8-K
    Where we are looking
    Investor-relations governance pages; Later SEC filings
    Searches recorded
    • August 24, 2026 — Reviewed SEC, company, USAspending, and live-branch records: What were Amentum's board committee assignments after the February 6, 2026 annual meeting? (partial). Director election is established; post-meeting committee assignments are not carried forward.
    Status
    partially answered

    An open question records a gap in reviewed evidence. It is not a finding that a missing relationship, event, conflict, or misconduct exists.

ownership control

  • What governance and control rights, if any, attach to Amentum's material shareholder blocks after the transaction?

    Why it matters
    The proxy reports material beneficial ownership and a stockholders agreement, but percentage ownership alone does not establish control.
    Missing evidence
    Current stockholders agreement rights; Board designation rights; Amendments and terminations; Current beneficial ownership filings
    Where we are looking
    SEC Schedule 13D/13G filings; Stockholders agreement; Later proxy statements
    Searches recorded
    • August 24, 2026 — Reviewed SEC, company, USAspending, and live-branch records: What governance and control rights, if any, attach to Amentum's material shareholder blocks after the transaction? (partial). Material holdings are disclosed, but this slice does not model them as controlling ownership.
    Status
    partially answered

    An open question records a gap in reviewed evidence. It is not a finding that a missing relationship, event, conflict, or misconduct exists.

market data licensing

  • Which market-data provider and license permit public redistribution of delayed end-of-day AMTM observations?

    Why it matters
    The canonical model supports market snapshots, but ticker identity is not permission to redistribute a quote or price history.
    Missing evidence
    Provider terms; Delay semantics; Adjustment methodology; Redistribution permission
    Where we are looking
    Exchange/vendor license; Provider documentation
    Searches recorded
    • August 24, 2026 — Reviewed SEC, company, USAspending, and live-branch records: Which market-data provider and license permit public redistribution of delayed end-of-day AMTM observations? (not-found). No licensed public market snapshot is included in this slice.
    Status
    open

    An open question records a gap in reviewed evidence. It is not a finding that a missing relationship, event, conflict, or misconduct exists.

08

Corrections to this record

Append-only. The timeline gives each correction's exact discovery and publication time and the dates of the sources behind it; the ledger below keeps the previous value visible beside the corrected one.

  1. Discovered August 24, 2026, 22:00 UTC · Published August 24, 2026, 00:00 UTC

    source correction · entityMatchNote

    Corrects the explanatory source basis only. No award recipient, amount, facility link, period, status, or accounting field changes.

  • source · LedgerRecipient · amentum · entityMatchNote

    Previously recorded
    "Corporate parent above Amentum Services, Inc. is not reported in the award record used here."
    Now recorded
    "USAspending reports PAE APPLIED TECHNOLOGIES LLC as the parent recipient on the Camp East Montana award. That source field establishes the award record's reported parent recipient, not the immediate legal ownership chain or how the entities divide work."

    The generated award record for PIID 70CDCR26C00000016 contains an explicit parentRecipientName and parentRecipientUei. The existing note incorrectly states that no parent is reported.

    Corrects the explanatory source basis only. No award recipient, amount, facility link, period, status, or accounting field changes.

    Discovered August 24, 2026 · Published August 24, 2026

    U.S. Department of the Treasury, Bureau of the Fiscal Service (USAspending.gov)U.S. Securities and Exchange Commission
09

Corporate case-file sources

Every source cited by the corporate sections above, once each.

Award figures retrieved from the USAspending.gov API on 2026-08-20. Amounts are nominal US dollars as reported by the awarding agency.