Welcome to our dedicated page for Amentum Holdings SEC filings (Ticker: AMTM), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Amentum Holdings, Inc. filings document regulatory reporting for an advanced engineering and technology solutions company serving government, international and commercial customers. The company’s Form 8-K filings report results of operations and financial condition, earnings releases, conference-call materials, material agreements and capital-structure changes, including senior secured term loan and revolving credit facility disclosures involving Amentum Services and Amentum Technology.
Proxy and annual meeting filings describe board elections, auditor ratification, executive compensation votes and related governance procedures. The filing record also documents shareholder voting results, risk and forward-looking statement language, and formal disclosure controls around Amentum’s public-company reporting obligations.
Amentum Holdings, Inc. reported essentially flat quarterly revenue but sharply higher profitability. For the quarter ended April 3, 2026, revenue was $3,478 million, down 0.4% year over year, while operating income rose to $151 million, up 37.3%.
Net income attributable to common shareholders increased to $54 million from $4 million, with diluted EPS rising to $0.22 from $0.02. For the first six months, revenue declined 2.8% to $6,715 million, but net income grew to $98 million from $16 million, helped by lower amortization, reduced SG&A, higher equity earnings from joint ventures, and lower interest expense.
Backlog increased to $47.8 billion from $44.8 billion, and remaining performance obligations were $10.1 billion. Operating cash flow for the first six months was $89 million versus $167 million a year earlier. Total debt was $3,988 million and cash was $428 million. After quarter end, Amentum refinanced its credit facility, adding a $1,400 million Term Loan A, a $1,591 million Term Loan B, and increasing its revolver.
Amentum Holdings reported second-quarter fiscal 2026 revenue of $3.48 billion, essentially flat year-over-year, but delivered a sharp improvement in profitability. Net income rose to $54 million from $4 million, with diluted EPS increasing to $0.22 from $0.02, helped by stronger operating performance and lower interest expense.
On a non-GAAP basis, Amentum generated Adjusted EBITDA of $275 million and Adjusted EPS of $0.60, modestly above the prior year. Free cash flow strengthened to $220 million, reflecting strong cash earnings and working capital management. Backlog grew to $47.8 billion with a 1.2x book-to-bill ratio, supported by large wins in nuclear, critical digital infrastructure, and public safety.
The company also refinanced its capital structure with a new $1.4 billion Term Loan A and a larger $1.0 billion revolver, contributing to net leverage of 3.2x. Amentum reaffirmed its fiscal 2026 guidance, targeting revenue of $13.95–$14.30 billion, Adjusted EBITDA of $1.10–$1.14 billion, Adjusted EPS of $2.25–$2.45, and free cash flow of $525–$575 million.
Amentum Holdings, Inc. Chief Executive Officer John E. Heller reported routine equity compensation activity involving restricted stock units and related tax withholding.
On May 6, 2026, he exercised 18,145 restricted stock units, receiving the same number of shares of common stock. To cover tax obligations upon vesting, 8,184 shares of common stock were tendered at $24.89 per share, a non-market tax-withholding disposition rather than an open-market sale.
Following these transactions, Heller directly holds 376,019 shares of Amentum common stock and 18,146 restricted stock units, each representing a contingent right to receive one share, with vesting in two equal installments on the 18-month and three-year anniversaries of the grant date.
Amentum Holdings, Inc. Chief Growth Officer Sean Thomas Mullen reported routine equity compensation activity involving restricted stock units and related tax withholding. On May 6, 2026, 9,072 restricted stock units were exercised into an equal number of AMTM common shares, reflecting vesting of stock-based awards.
In connection with this vesting, 2,762 shares of AMTM common stock were tendered to cover tax withholding obligations, a non-market disposition. Following these transactions, Mullen directly held 35,210 shares of AMTM common stock and 9,073 restricted stock units, which vest in two installments on the 18-month and three-year anniversaries of the grant date.
Amentum Holdings, Inc. Chief Financial Officer Travis Barton Johnson reported equity compensation activity in the company’s common stock. On May 6, 2026, restricted stock units representing 13,609 shares of AMTM common stock vested and were delivered. In connection with this vesting, 4,097 shares were tendered to cover tax withholding obligations, a non-market disposition. Following these transactions, Johnson directly holds 118,187 shares of Amentum common stock.
Amentum Holdings, Inc. Chief Technology Officer Jill L. Bruning reported routine equity compensation activity. On May 6, 2026, restricted stock units vested and were settled into 9,072 shares of common stock, reflecting an exercise of derivative securities.
To cover tax obligations on the vesting, Bruning tendered 2,731 shares of common stock at $24.89 per share as a tax-withholding disposition, rather than selling shares in the open market. After these transactions, she directly holds 200,188 shares of common stock and 9,073 restricted stock units. Footnotes note that each restricted stock unit represents a right to receive one share and that the units vest in two equal installments at the 18‑month and three‑year anniversaries of the grant date.
Amentum Holdings, Inc. Chief Operating Officer Stephen A. Arnette reported routine equity compensation activity involving restricted stock units. On May 6, 2026, 13,609 restricted stock units vested and were delivered as the same number of shares of AMTM common stock. Of these, 3,314 shares of common stock were tendered back to the company to satisfy tax withholding obligations, a non‑market disposition. As a result of these transactions, Arnette’s direct holdings increased, with the filing showing 109,966 shares of AMTM common stock held directly after the RSU-related activity.
Amentum Holdings Inc: Invesco Ltd. filed Amendment No. 3 to a Schedule 13G/A reporting beneficial ownership of 24,529,939 shares of Common Stock, equal to 10.1% of the class. The filing shows sole voting power of 24,481,944 shares and sole dispositive power of 24,529,939. The schedule lists related advisory subsidiaries and is signed by Robert R. Leveille on 05/07/2026.
Amentum Holdings, Inc. amended its existing credit facilities by entering into a new Credit Agreement that refinances prior borrowings and extends maturities. The agreement adds a new five-year senior secured term loan A facility of $1.400 billion, a senior secured term loan B facility of $1.591 billion and a new five-year senior secured revolving credit facility with commitments of $1.000 billion.
Amentum, Amentum Services and Amentum Technology used the new term loans, together with cash on hand, to repay in full all borrowings and other amounts under the prior credit agreement and to pay related fees and expenses. The term loan A and revolving facilities include a maximum first lien net leverage ratio covenant, while the term loan B has no financial maintenance covenants. All facilities are senior secured and guaranteed by substantially all tangible and intangible assets of Amentum and its wholly owned material domestic restricted subsidiaries.
The Vanguard Group filed Amendment No. 3 to a Schedule 13G reporting zero beneficial ownership of Amentum Holdings Inc common stock. The amendment explains an internal realignment on January 12, 2026 that caused certain Vanguard subsidiaries to disaggregate holdings, and states The Vanguard Group no longer has beneficial ownership of securities held by those subsidiaries.
The filing lists 0 shares and 0% beneficial ownership, and is signed by Ashley Grim, Head of Global Fund Administration, dated 03/26/2026.