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Amentum Holdings, Inc.

AMTMยทNYSE

$23.16

+0.89%
IndustrialsAerospace & Defense

Amentum Holdings, Inc. provides mission-critical, technology-driven services in government and commercial markets. It operates through two operating segments: Critical Mission Solutions and Cyber & Intelligence. The Critical Mission Solutions segment provides test, training, and operations services for missile defense systems, IT and engineering services to defense clients and the space sector, technological solutions, including installations, decommissioning, and environmental remediation to energy clients, and other highly technical consulting solutions. The Cyber & Intelligence segment provides advanced cyber training and data analytics for government professionals, advanced communication systems and aerial mapping technologies to national security clients, and other technical services for United States defense and intelligence clients. The company was founded on November 26, 2019 and is headquartered in Chantilly, VA.

At a Glance

Live Snapshot
Market Cap$5.65B
EPS0.2700
P/E Ratio85.78
Earnings Date08/04/2026

SEC Filings

AMTM - Filing history and reports

Filing TypeFiling DatePeriod EndingFiscal YearActions
10-Q

10-Q 2026 Q2

Q2

May 12, 2026
April 03, 2026
2026
8-K

8-K 2026

N/A

May 11, 2026
May 11, 2026
2026
8-K

8-K 2026

N/A

April 28, 2026
April 24, 2026
2026
8-K

8-K 2026

N/A

February 10, 2026
February 06, 2026
2026
10-Q

10-Q 2026 Q1

Q1

February 10, 2026
January 02, 2026
2026
8-K

8-K 2026

N/A

February 09, 2026
February 09, 2026
2026
DEF 14A

DEF 14A 2026

N/A

December 19, 2025
February 06, 2026
2026
10-K

10-K 2025 FY

FY

November 25, 2025
October 03, 2025
2025
8-K

8-K 2025

N/A

November 24, 2025
November 24, 2025
2025
10-Q

10-Q 2025 Q2

Q2

August 06, 2025
June 27, 2025
2025
Showing 1 to 10 of 28 filings

Understanding SEC Filings

Essential regulatory documents for investors

SEC filings are mandatory documents that publicly traded companies must submit to the Securities and Exchange Commission. These reports provide critical insights into a company's financial health, operations, risks, and strategic direction. For investors conducting due diligence, these filings are the most authoritative source of company information.

10-K

Annual Report

Comprehensive annual financial report filed within 60-90 days of fiscal year-end. Includes audited financial statements, management discussion & analysis (MD&A), risk factors, and detailed business operations. The most thorough financial disclosure of the year.

Filed annually
10-Q

Quarterly Report

Unaudited quarterly financial report filed within 40-45 days after each of the first three fiscal quarters. Provides updates on financial position, results of operations, and significant events. Essential for tracking quarterly performance trends.

Filed 3 times per year
8-K

Current Report

Event-driven filing for material events that shareholders should know about, filed within 4 business days. Includes acquisitions, executive changes, bankruptcy, earnings releases, and other significant developments. Critical for staying informed about breaking news.

Filed as events occur
DEF 14A

Proxy Statement

Definitive proxy statement sent to shareholders before annual meetings. Contains executive compensation details, board member information, voting matters, and corporate governance policies. Key for understanding management incentives and board composition.

Filed before shareholder meetings
S-1

Registration Statement

Initial registration for securities offerings, including IPOs. Provides detailed company history, business model, financial statements, risk factors, and use of proceeds. Essential for evaluating new investment opportunities and understanding company fundamentals.

Filed for new offerings
20-F

Foreign Annual Report

Annual report for foreign private issuers, equivalent to Form 10-K for non-U.S. companies. Filed within 4-6 months of fiscal year-end. Contains audited financials, business description, and regulatory disclosures adapted for international companies.

Foreign companies only

Why SEC Filings Matter

  • Regulatory Accuracy: Filings are subject to SEC review and legal penalties for misstatements, ensuring high data quality
  • Management Insights: MD&A sections reveal management's perspective on trends, challenges, and future outlook
  • Risk Assessment: Detailed risk factor disclosures help investors understand potential threats to business operations
  • Competitive Analysis: Business descriptions and segment data enable comparison with industry peers
  • Historical Context: Years of filings provide trend analysis and context for current performance