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SEC insider activity covers quarterly filings through June 30, 2026. Later filings are not included. Reported roles do not establish current employment or current holdings. SEC filing documents, sections and filing-text search cover filings dated January 1, 2000 onward. Earlier filings are deferred until after launch.
Also known as: AMENTUM HOLDINGS, INC, AMENTUM HOLDINGS, INC., Amentum Holdings, Inc., AMENTUM HOLDINGS, INC, AMENTUM HOLDINGS, INC.
Client-Reported Lobbying Expenses
$3.2M
63 filings
Firm Income Reported for This Client
$230K
Not substituted for client expenses
SEC Insider
$5.4M
164 transactions
Summary
AMENTUM HOLDINGS, INC. (AMTM) is an organization, based in DC. Its political footprint includes $3.2 million in client-reported lobbying expenses, $230K in lobbying-firm income reported for this client. Lobbying activity focuses on Defense, Budget/Appropriations, Environment/Superfund, Homeland Security. Political activity spans from 2020 to 2026.
These are different money flows and are not added together: contributions and lobbying expenses flow out, while contract awards flow to the organization.
Lobbying Spend Trend
↑ 18% YoY
2025: $400K (complete years)
Insider Trading
37 insiders
SEC filings: SEC EDGAR
Activity data: Senate LDA · SEC EDGAR