[FinancialReports](/) / [Companies](/companies/search/) / [United States of America](/companies/countries/united-states/) / **AMTM** ![Amentum Holdings, Inc. logo](https://cdn.financialreports.eu/financialreports/media/Amentum%20Holdings%2C%20Inc./other/Amentum_Holdings_Inc.-logo.png) # Amentum Holdings, Inc. — Investor Relations & Filings Ticker · **AMTM** ISIN · **US0239391016** LEI · **2549009FJIBLW40CU216** US Professional, scientific and technical activities [Open in API](/api-solutions/) Overview Filings 172 Market data Peer group API Filings indexed 172 across all filing types Latest filing 2026-05-12 Interim / Quarterly Rep… Country US United States of America Listing US AMTM ## About Amentum Holdings, Inc. Amentum Holdings, Inc. is a provider of advanced engineering and technology solutions, delivering professional and technical services to government and commercial clients. The company supports critical missions for the United States and its allies across the defense, space, intelligence, and energy markets. Core capabilities include end-to-end program management, mission support, and systems integration. Amentum specializes in complex challenges, offering expertise in nuclear services such as design, operations, and decommissioning; aerospace engineering and mission support for space exploration programs; and the development of advanced defense systems. The company also provides solutions for energy resilience, environmental management, and robotics for harsh environments. ## Recent filings View all 172 → | Filing | Released | Lang | Actions | | --- | --- | --- | --- | | [**10-Q - Amentum Holdings, Inc. (0002011286) (Filer)**](/filings/amentum-holdings-inc/interim-quarterly-report/2026/45340438/) Interim / Quarterly Report | 2026-05-12 | English | | | [**8-K - Amentum Holdings, Inc. (0002011286) (Filer)**](/filings/amentum-holdings-inc/regulatory-filings/2026/37982364/) Regulatory Filings | 2026-04-28 | English | | | [**SCHEDULE 13G/A - Amentum Holdings, Inc. (0002011286) (Subject)**](/filings/amentum-holdings-inc/major-shareholding-notification/2026/33051777/) Major Shareholding Notification | 2026-03-26 | English | | | [**4 - AMENTUM HOLDINGS, INC. (0002011286) (Filer)**](/filings/amentum-holdings-inc/directors-dealing/2026/32900977/) Director's Dealing | 2026-03-04 | English | | | [**4 Filing**](/filings/amentum-holdings-inc/directors-dealing/2026/32298326/) Director's Dealing | 2026-02-18 | English | | | [**4 - AMENTUM HOLDINGS, INC. (0002011286) (Filer)**](/filings/amentum-holdings-inc/directors-dealing/2026/32900978/) Director's Dealing | 2026-02-10 | English | | ## Browse filings by year 3 years - [2026 16 filings](/companies/amentum-holdings-inc/2026/) - [2025 71 filings](/companies/amentum-holdings-inc/2025/) - [2024 85 filings](/companies/amentum-holdings-inc/2024/) [["1", "Annual Report"], ["20", "Director's Dealing"], ["19", "Interim / Quarterly Report"], ["24", "Major Shareholding Notification"], ["4", "Prospectus"], ["46", "Proxy Solicitation & Information Statement"], ["16", "Registration Form"], ["18", "Regulatory Filings"]] [["1", "English"]] Financial Reporting & Info Annual General Meeting Equity Information Listing/Delisting Management & Remuneration Other Filing type Language Start date End date Apply filters [Clear](/companies/amentum-holdings-inc/) Report missing filing Download originals Download Markdown | | ID | Filing | Released | Lang | Actions | | --- | --- | --- | --- | --- | --- | | [2026](/companies/amentum-holdings-inc/2026/) 15 filings | | | | | | | | 45340438 | [**10-Q - Amentum Holdings, Inc. (0002011286) (Filer)**](/filings/amentum-holdings-inc/interim-quarterly-report/2026/45340438/) Interim / Quarterly Report | 2026-05-12 | English | | | | 37982364 | [**8-K - Amentum Holdings, Inc. (0002011286) (Filer)**](/filings/amentum-holdings-inc/regulatory-filings/2026/37982364/) Regulatory Filings | 2026-04-28 | English | | | | 33051777 | [**SCHEDULE 13G/A - Amentum Holdings, Inc. (0002011286) (Subject)**](/filings/amentum-holdings-inc/major-shareholding-notification/2026/33051777/) Major Shareholding Notification | 2026-03-26 | English | | | | 32900977 | [**4 - AMENTUM HOLDINGS, INC. (0002011286) (Filer)**](/filings/amentum-holdings-inc/directors-dealing/2026/32900977/) Director's Dealing | 2026-03-04 | English | | | | 32298326 | [**4 Filing**](/filings/amentum-holdings-inc/directors-dealing/2026/32298326/) Director's Dealing | 2026-02-18 | English | | | | 32900978 | [**4 - AMENTUM HOLDINGS, INC. (0002011286) (Filer)**](/filings/amentum-holdings-inc/directors-dealing/2026/32900978/) Director's Dealing | 2026-02-10 | English | | | | 32900979 | [**4 - AMENTUM HOLDINGS, INC. (0002011286) (Filer)**](/filings/amentum-holdings-inc/directors-dealing/2026/32900979/) Director's Dealing | 2026-02-10 | English | | | | 32900982 | [**4 - AMENTUM HOLDINGS, INC. (0002011286) (Filer)**](/filings/amentum-holdings-inc/directors-dealing/2026/32900982/) Director's Dealing | 2026-02-10 | English | | | | 32900980 | [**4 - AMENTUM HOLDINGS, INC. (0002011286) (Filer)**](/filings/amentum-holdings-inc/directors-dealing/2026/32900980/) Director's Dealing | 2026-02-10 | English | | | | 32900981 | [**4 - AMENTUM HOLDINGS, INC. (0002011286) (Filer)**](/filings/amentum-holdings-inc/directors-dealing/2026/32900981/) Director's Dealing | 2026-02-10 | English | | | | 32298348 | [**10-Q Filing**](/filings/amentum-holdings-inc/interim-quarterly-report/2026/32298348/) Interim / Quarterly Report · Q1 2026 | 2026-02-10 | English | | | | 32298288 | [**8-K Filing**](/filings/amentum-holdings-inc/regulatory-filings/2026/32298288/) Regulatory Filings | 2026-02-10 | English | | | | 32298283 | [**4 Filing**](/filings/amentum-holdings-inc/directors-dealing/2026/32298283/) Director's Dealing | 2026-02-10 | English | | | | 32298238 | [**4 Filing**](/filings/amentum-holdings-inc/directors-dealing/2026/32298238/) Director's Dealing | 2026-02-10 | English | | | | 18393364 | [**8-K - Amentum Holdings, Inc. (0002011286) (Filer)**](/filings/amentum-holdings-inc/regulatory-filings/2026/18393364/) Regulatory Filings | 2026-02-09 | English | | Page **1** of **12** 1 [2](?page=2#filings) [3](?page=3#filings) … [Next](?page=2#filings) ## Market data ### Market data not available Last price Market cap volume Day range today 52-week range trailing ### Price history 1Y 5Y 10Y ## Peer group · Architectural and engineering, and related technical consultancy activities 361 peers | Company | Ticker | Country | Sector | | --- | --- | --- | --- | | [**3S INDUSTRY GROUP INC.**](/companies/3s-industry-group-inc/) Integrates RS, GIS, and GNSS technologies for surveying and… | 605305 | CN | Professional, scientific and te… | | [**ABIST Co.,Ltd.**](/companies/abist-coltd/) A technology services company specializing in industrial de… | 6087 | JP | Professional, scientific and te… | | [**ABL Group**](/companies/abl-group/) Global consultancy providing technical solutions for the en… | ABL | NO | Professional, scientific and te… | | [**ABO-Group Environment NV**](/companies/abo-group-environment-nv/) Engineering and consultancy firm for geotechnics, environme… | ABO | BE | Professional, scientific and te… | | [**Academy of Environmental Planning and Design, Co.,Ltd., Nanjing University**](/companies/academy-of-environmental-planning-and-design-coltd-nanjing-university/) University-affiliated environmental consulting, engineering… | 300864 | CN | Professional, scientific and te… | | [**Acceleware Ltd.**](/companies/acceleware-ltd/) Provides advanced EM heating solutions for industrial appli… | AXE | CA | Professional, scientific and te… | | [**ADNEO LIMITED**](/companies/adneo-limited/) Engineering services for embedded systems, hardware design,… | AD1 | AU | Professional, scientific and te… | | [**ADVANCED SYSTEMS AUTOMATION LIMITED**](/companies/advanced-systems-automation-limited/) Manufactures automated backend equipment for semiconductor … | 5TY | SG | Professional, scientific and te… | | [**AECOM**](/companies/aecom/) A global infrastructure consulting firm providing services … | ACM | US | Professional, scientific and te… | | [**AEROMETREX LIMITED**](/companies/aerometrex-limited/) Provides high-resolution aerial photography, LiDAR surveys,… | AMX | AU | Professional, scientific and te… | Page **1** of **37** 1 [2](?peer_page=2#peers) [3](?peer_page=3#peers) … [Next](?peer_page=2#peers) ### Amentum Holdings, Inc. via the API Pull this company's filings, identifiers, and metadata as JSON or Markdown. Authenticate with your API key, then query by company ID, ISIN, or LEI. Full schema documented in the OpenAPI spec. [Get API access](/api-solutions/) [Read API reference](/developers/reference/) Base URLapi.financialreports.eu Auth headerx-api-key Company ID30969 TickerAMTM ISINUS0239391016 ### Endpoints most-used routes for this company | | | | | --- | --- | --- | | GET | /api/companies/30969/ | Company identity, sector, listing, identifiers | | GET | /api/filings/?company=30969 | Paginated list of all filings (filterable by type, date, language) | | GET | /api/filings/{id}/ | Single filing — metadata, document URL, processing status | | GET | /api/filings/{id}/markdown/ | Filing content as Markdown (PDF → text/tables/figures) | | GET | /api/isins/?company=30969 | All ISINs registered to this company | | GET | /api/filing-types/ | Reference: every filing-type code + category | Full reference: [API reference](/developers/reference/) · [OpenAPI schema](/api/schema/) ### cURL latest filings for Amentum Holdings, Inc. ``` $ curl https://api.financialreports.eu/api/filings/?company=30969 \ -H "x-api-key: $FR_API_KEY" \ -H "Accept: application/json" ``` ### Python requests ``` import requests r = requests.get( "https://api.financialreports.eu/api/filings/", params={"company": 30969}, headers={"x-api-key": API_KEY}, ) filings = r.json()["results"] ``` ### MCP server Claude · Claude Code · ChatGPT [Claude setup →](/integrations/claude/) [ChatGPT setup →](/integrations/chatgpt/) [Claude Code setup →](/integrations/claude-code/) ``` // MCP server URL https://mcp.financialfilings.com/mcp // Once connected, the LLM can query this company directly: "Pull the latest 5 filings for Amentum Holdings, Inc. (id: 30969)" ``` #### AI · Markdown Filings as Markdown Drop the latest filing into Claude or ChatGPT, or query via MCP from your client. [Open Markdown↗](/filings/amentum-holdings-inc/interim-quarterly-report/2026/45340438/) [Open in MCP↗](/integrations/claude/) [cURL endpoint$](/api-solutions/) #### Identity Legal nameAmentum Holdings, Inc. HQCHANTILLY, US ListingUS ISINUS0239391016 LEI2549009FJIBLW40CU216 Sector[Professional, scientific and technical activities](/companies/sectors/professional-scientific-and-technical-activities/) Industry[Architectural and engineering, and related technical consultancy activities](/companies/sectors/professional-scientific-and-technical-activities/architectural-and-engineering-and-related-technical-consultancy-activities/) #### Coverage Filings indexed 172 Next annual report Aug 15–Sep 14, 2026 Confidence 75% ### Report missing filing Can't find a specific document? Let us know and we'll add it within 24 hours. What is missing or wrong? Your email We will notify you once the filing is added. Cancel Send report Sending… Report sent Thank you. We will check the data and update it shortly. × (function() { const tabs = document.querySelectorAll('.cmp-tabs-wrap .fr-tab'); const panes = document.querySelectorAll('.tab-pane'); function activate(target, pushHash) { tabs.forEach(t => { const isActive = t.dataset.tab === target; t.classList.toggle('fr-tab--active', isActive); t.setAttribute('aria-selected', isActive ? 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