# Amentum Holdings Inc. (AMTM)

Source: https://www.quantisnow.com/company/AMTM
Generated: 2026-11-08T08:31:50.195Z

- Ticker: AMTM
- Exchange: NYSE
- Sector: Consumer Discretionary
- Industry: Business Services
- IPO year: 2024
- SEC CIK: 0002011286

## Latest AMTM news and filings

- 2026-11-03 13:30 UTC [Amentum and Kyoto Fusioneering Announce Strategic Collaboration to Accelerate Global Fusion Commercialization](https://www.quantisnow.com/insight/amentum-and-kyoto-fusioneering-announce-strategic-collaboration-to-accelerate-global-6768739)
- 2026-11-03 13:00 UTC [Nuclear News Names Deep Isolation Director of Engineering Matt Waples to 2026 “40 Under 40” List](https://www.quantisnow.com/insight/nuclear-news-names-deep-isolation-director-of-engineering-matt-waples-6768490)
- 2026-10-30 14:30 UTC [Amentum Expands Defense and Space Operations in Colorado Springs](https://www.quantisnow.com/insight/amentum-expands-defense-and-space-operations-in-colorado-springs-6764830)
- 2026-10-29 12:00 UTC [Deep Isolation Announces Timing of Third Quarter 2026 Earnings Release](https://www.quantisnow.com/insight/deep-isolation-announces-timing-of-third-quarter-2026-earnings-release-6762597)
- 2026-10-28 11:00 UTC [Deep Isolation Begins Surface Pad Construction for First Full-Scale Deep Borehole Nuclear Waste Disposal Demonstration](https://www.quantisnow.com/insight/deep-isolation-begins-surface-pad-construction-for-first-full-scale-deep-6760393)
- 2026-10-27 12:00 UTC [Earnings Date] [Amentum to Host Fourth Quarter and Full Fiscal Year 2026 Earnings Conference Call on November 24, 2026](https://www.quantisnow.com/insight/amentum-to-host-fourth-quarter-and-full-fiscal-year-2026-6758596)
- 2026-10-22 12:00 UTC [Leadership Update] [Nuclear Waste Innovator Deep Isolation to Join Leadership Discussion Hosted by The Economist Enterprise in New York](https://www.quantisnow.com/insight/nuclear-waste-innovator-deep-isolation-to-join-leadership-discussion-hosted-6754471)
- 2026-10-14 12:00 UTC [Nuclear Waste Innovator Deep Isolation Publishes New Slovenian Customer Case Study](https://www.quantisnow.com/insight/nuclear-waste-innovator-deep-isolation-publishes-new-slovenian-customer-case-6745923)
- 2026-10-08 21:59 UTC [Amentum Opens Global Nuclear Headquarters in Oak Ridge, Tennessee](https://www.quantisnow.com/insight/amentum-opens-global-nuclear-headquarters-in-oak-ridge-tennessee-6742121)
- 2026-10-07 12:00 UTC [Conference Announcement] [Nuclear Waste Innovator Deep Isolation to Present at Three Upcoming Investor Conferences](https://www.quantisnow.com/insight/nuclear-waste-innovator-deep-isolation-to-present-at-three-upcoming-6739723)
- 2026-10-06 12:24 UTC [Analyst Upgrade] [Amentum Holdings upgraded by BNP Paribas Exane with a new price target](https://www.quantisnow.com/insight/amentum-holdings-upgraded-by-bnp-paribas-exane-with-a-new-6738279)
- 2026-10-02 20:19 UTC [SEC Form 8-K] [Amentum Holdings Inc. filed SEC Form 8-K: Leadership Update, Financial Statements and Exhibits](https://www.quantisnow.com/insight/amentum-holdings-inc-filed-sec-form-8-k-leadership-update-financial-6734644)
- 2026-10-01 12:00 UTC [Deep Isolation Advances Nuclear Waste Disposal Demonstration With Issuance of Texas Drilling Permit](https://www.quantisnow.com/insight/deep-isolation-advances-nuclear-waste-disposal-demonstration-with-issuance-of-6731456)
- 2026-09-30 07:00 UTC [Amentum Joint Venture Secures Preferred Position for Major UK Nuclear Contract](https://www.quantisnow.com/insight/amentum-joint-venture-secures-preferred-position-for-major-uk-nuclear-6729724)
- 2026-09-22 12:00 UTC [Nuclear Waste Innovator Deep Isolation Demonstrates Safe, Cost-Effective Disposal Pathway for Waste From Recycled Fuel](https://www.quantisnow.com/insight/nuclear-waste-innovator-deep-isolation-demonstrates-safe-cost-effective-disposal-pathway-6722419)
- 2026-09-18 01:35 UTC [SEC Form 4] [Director Thompson Christopher M.T. gifted 4,250 shares (SEC Form 4)](https://www.quantisnow.com/insight/director-thompson-christopher-mt-gifted-4250-shares-sec-form-4-6719884)
- 2026-09-01 12:30 UTC [Amentum Selected for Projects to Upgrade and Protect the UK Energy Grid](https://www.quantisnow.com/insight/amentum-selected-for-projects-to-upgrade-and-protect-the-uk-6700726)
- 2026-08-20 12:30 UTC [Amentum Wins $974M Center Maintenance, Operations, and Engineering Contract at NASA Langley Research Center](https://www.quantisnow.com/insight/amentum-wins-974m-center-maintenance-operations-and-engineering-contract-at-6689547)
- 2026-08-19 08:00 UTC [Amentum to Support Critical Infrastructure and Platforms Under New Engineering Services Framework](https://www.quantisnow.com/insight/amentum-to-support-critical-infrastructure-and-platforms-under-new-engineering-6687593)
- 2026-08-18 12:30 UTC [Amentum Joint Venture Selected for Australia Nuclear Submarine Shipyard Program](https://www.quantisnow.com/insight/amentum-joint-venture-selected-for-australia-nuclear-submarine-shipyard-program-6685983)
- 2026-08-18 12:00 UTC [Conference Announcement] [Nuclear Innovator Deep Isolation to Present at EnerCom Denver and OTC Markets Virtual Investor Conference in August](https://www.quantisnow.com/insight/nuclear-innovator-deep-isolation-to-present-at-enercom-denver-and-6685892)
- 2026-08-12 12:00 UTC [Nuclear Survey Finds Americans See Permanent Waste Disposal as a National Priority](https://www.quantisnow.com/insight/nuclear-survey-finds-americans-see-permanent-waste-disposal-as-a-6677048)
- 2026-08-11 20:25 UTC [SEC Form 10-Q] [SEC Form 10-Q filed by Amentum Holdings Inc.](https://www.quantisnow.com/insight/sec-form-10-q-filed-by-amentum-holdings-inc-6676069)
- 2026-08-10 20:42 UTC [SEC Form 8-K] [Amentum Holdings Inc. filed SEC Form 8-K: Results of Operations and Financial Condition, Financial Statements and Exhibits](https://www.quantisnow.com/insight/amentum-holdings-inc-filed-sec-form-8-k-results-of-operations-6674101)
- 2026-08-10 20:30 UTC [Earnings Date] [Amentum Reports Third Quarter Fiscal Year 2026 Results](https://www.quantisnow.com/insight/amentum-reports-third-quarter-fiscal-year-2026-results-6673966)
- 2026-08-06 21:16 UTC [SEC Form SCHEDULE 13G filed by Amentum Holdings Inc.](https://www.quantisnow.com/insight/sec-form-schedule-13g-filed-by-amentum-holdings-inc-6670024)
- 2026-08-06 11:00 UTC [Conference Announcement] [Deep Isolation Nuclear, Inc. Reports Operational and Financial Results for the Second Quarter of 2026](https://www.quantisnow.com/insight/deep-isolation-nuclear-inc-reports-operational-and-financial-results-for-6667065)
- 2026-08-04 12:30 UTC [Westinghouse and Amentum Partner to Expand Delivery Capacity for APX Fleet Deployment](https://www.quantisnow.com/insight/westinghouse-and-amentum-partner-to-expand-delivery-capacity-for-apx-6661316)
- 2026-07-28 17:31 UTC [Deep Isolation Welcomes DOE Nuclear Lifecycle Innovation Campus Initiative](https://www.quantisnow.com/insight/deep-isolation-welcomes-doe-nuclear-lifecycle-innovation-campus-initiative-6651159)
- 2026-07-23 20:15 UTC [Deep Isolation Announces Timing of Second Quarter 2026 Earnings Release](https://www.quantisnow.com/insight/deep-isolation-announces-timing-of-second-quarter-2026-earnings-release-6647153)
- 2026-07-23 14:11 UTC [Nuclear Innovator Deep Isolation Selected by DOE for Three Project GENESIS Initiatives Advancing AI-Driven Nuclear Waste Research](https://www.quantisnow.com/insight/nuclear-innovator-deep-isolation-selected-by-doe-for-three-project-6646619)
- 2026-07-20 12:30 UTC [Amentum Selected for the Department of Energy AI Data Center and Energy Generation Project](https://www.quantisnow.com/insight/amentum-selected-for-the-department-of-energy-ai-data-center-6642012)
- 2026-07-15 12:00 UTC [Conference Announcement] [Deep Isolation CEO Rod Baltzer Issues Letter to Shareholders](https://www.quantisnow.com/insight/deep-isolation-ceo-rod-baltzer-issues-letter-to-shareholders-6637633)
- 2026-07-14 12:00 UTC [Earnings Date] [Amentum to Host Third Quarter Fiscal Year 2026 Earnings Conference Call on August 11, 2026](https://www.quantisnow.com/insight/amentum-to-host-third-quarter-fiscal-year-2026-earnings-conference-6636085)
- 2026-07-13 12:00 UTC [Public Offering] [Nuclear Innovator Deep Isolation Begins Trading on the OTCQB Venture Market Under the Ticker Symbol “DBHL”](https://www.quantisnow.com/insight/nuclear-innovator-deep-isolation-begins-trading-on-the-otcqb-venture-6634827)
- 2026-07-09 14:51 UTC [Amentum Recognized as One of America’s Best Companies 2026 by TIME Magazine](https://www.quantisnow.com/insight/amentum-recognized-as-one-of-americas-best-companies-2026-by-6632737)
- 2026-06-30 12:30 UTC [Amentum Wins NASA’S COSMOS Contract to Advance Spaceflight Mission Operations](https://www.quantisnow.com/insight/amentum-wins-nasas-cosmos-contract-to-advance-spaceflight-mission-operations-6620138)
- 2026-06-17 12:30 UTC [Amentum Secures $77M Contract to Modernize Defense Supply Chain Logistics in the Indo-Pacific Region with AI Tools](https://www.quantisnow.com/insight/amentum-secures-77m-contract-to-modernize-defense-supply-chain-logistics-6606001)
- 2026-06-17 10:00 UTC [Leadership Update] [Deep Isolation Nuclear Appoints Drilling Veteran Jon Tedrick to Lead World's First Full-scale Deep Borehole Disposal Demonstration](https://www.quantisnow.com/insight/deep-isolation-nuclear-appoints-drilling-veteran-jon-tedrick-to-lead-6605681)
- 2026-06-03 12:05 UTC [Amentum Debuts on the Fortune 500 List](https://www.quantisnow.com/insight/amentum-debuts-on-the-fortune-500-list-6585913)

## More

- Live page with ratings, short volume, options and peers: https://www.quantisnow.com/company/AMTM
- Earnings history: https://www.quantisnow.com/earnings/AMTM
- Dividend history: https://www.quantisnow.com/dividends/AMTM
- Insider transactions: https://www.quantisnow.com/insiders/AMTM
- Options chain: https://www.quantisnow.com/options/AMTM
- SEC 8-K filings only: https://www.quantisnow.com/company/AMTM/8-k
- RSS and alerts for AMTM: https://www.quantisnow.com/docs/rss-feeds.md