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Amentum Holdings, Inc. SEC filings

Amentum Holdings (AMTM) filed its 10-Q for the quarter ended 3 July 2026 on 11 August 2026. Its latest SEC filing, on 2 October 2026, was an 8-K: officer or director change. 14 filings in the last twelve months, each 8-K by what it was about; the 10-K and proxy statement are on the documents page.

In the twelve months since 11 October 2025 Amentum Holdings, Inc. filed 14 documents with the SEC of the kinds listed here: 7 current reports (8-K), about 4 results of operations; 1 officer or director change; 1 material agreement; 1 shareholder vote; 3 quarterly reports (10-Q), 1 annual report to shareholders (ARS), 1 additional proxy material (DEFA14A), 1 proxy statement (DEF 14A), 1 annual report (10-K). The latest, filed 2 October 2026: 8-K, officer or director change. The 10-K, the 10-Qs and the proxy statement themselves, each with a link to open it, are on the documents page.

FiledFormWhat it was aboutPeriod or event dateFiling
2 October 20268-KOfficer or director change28 September 2026EDGAR
11 August 202610-Qquarterly report3 July 2026EDGAR
10 August 20268-KResults of operations10 August 2026EDGAR
12 May 202610-Qquarterly report3 April 2026EDGAR
11 May 20268-KResults of operations11 May 2026EDGAR
28 April 20268-KMaterial agreement24 April 2026EDGAR
10 February 20268-KShareholder vote6 February 2026EDGAR
10 February 202610-Qquarterly report2 January 2026EDGAR
9 February 20268-KResults of operations9 February 2026EDGAR
19 December 2025ARSannual report to shareholders3 October 2025EDGAR
19 December 2025DEFA14Aadditional proxy materialEDGAR
19 December 2025DEF 14Aproxy statement6 February 2026EDGAR
25 November 202510-Kannual report3 October 2025EDGAR
24 November 20258-KResults of operations24 November 2025EDGAR
An 8-K is what a company files within four business days of a material event; the SEC numbers the events, and the words here are the SEC's own headings, shortened.
Read moreForm 4, Form 144, 13F and Schedule 13D and 13G have their own pages. Prospectus supplements and correspondence are not listed.

Source

The company's filing index on EDGAR, read from the SEC's submissions feed.

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