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Amentum Holdings, Inc. (AMTM)

Amentum Holdings, Inc. at a glance — key fundamentals, SEC filings, insider buying and selling, and earnings dates.

Amentum Holdings, Inc. (AMTM) is a Aerospace & Defense company based in US with a market capitalization of $5.7B. Revenue grew 71.6% year-over-year and the company generated $516M in free cash flow. This page tracks AMTM's SEC filings, insider buying and selling, earnings dates, and key fundamentals in one place.

US · 53K employees · IPO Sep 24, 2024

Valuation

Valuation & price

$22.98 · as of May 17, 2026 · -38.8% vs 52w high

85.0

P/E ratio

Latest-FY diluted EPS

1.27

P/B ratio

Market cap ÷ book equity

—

Dividend yield

Price — last 12 months

$37.12$28.68$20.25Jul 25Dec 25Jul 26Jul 7, 25$24.20Jul 9, 25$24.09Jul 11, 25$23.68Jul 15, 25$23.74Jul 17, 25$25.54Jul 21, 25$24.74Jul 23, 25$25.41Jul 25, 25$25.59Jul 29, 25$24.97Jul 31, 25$24.97Aug 4, 25$24.48Aug 6, 25$25.74Aug 11, 25$25.35Aug 13, 25$26.53Aug 15, 25$25.18Aug 19, 25$24.37Aug 21, 25$24.27Aug 25, 25$25.21Aug 27, 25$25.17Aug 29, 25$24.95Sep 3, 25$24.85Sep 5, 25$24.24Sep 9, 25$23.71Sep 11, 25$23.95Sep 16, 25$22.65Sep 18, 25$22.27Sep 22, 25$22.81Sep 24, 25$22.59Sep 26, 25$22.57Sep 30, 25$23.95Oct 2, 25$25.15Oct 6, 25$26.27Oct 8, 25$25.25Oct 10, 25$23.39Oct 14, 25$23.45Oct 16, 25$22.67Oct 21, 25$22.85Oct 23, 25$23.16Oct 27, 25$22.46Oct 29, 25$21.48Oct 31, 25$22.41Nov 4, 25$21.95Nov 6, 25$21.79Nov 10, 25$22.81Nov 12, 25$22.96Nov 14, 25$22.07Nov 18, 25$21.79Nov 20, 25$24.38Nov 25, 25$30.00Nov 28, 25$28.63Dec 2, 25$28.72Dec 4, 25$29.25Dec 8, 25$28.82Dec 10, 25$29.60Dec 12, 25$29.72Dec 16, 25$29.13Dec 18, 25$28.69Dec 22, 25$29.87Dec 24, 25$29.91Dec 29, 25$29.20Jan 2, 26$30.48Jan 6, 26$31.53Jan 8, 26$32.47Jan 12, 26$34.40Jan 14, 26$34.60Jan 16, 26$34.80Jan 21, 26$34.67Jan 23, 26$35.38Jan 27, 26$35.37Jan 29, 26$37.12Feb 2, 26$35.89Feb 4, 26$36.45Feb 9, 26$36.59Feb 11, 26$30.39Feb 13, 26$31.00Feb 18, 26$30.87Feb 20, 26$30.97Feb 24, 26$30.19Feb 26, 26$30.23Mar 2, 26$30.70Mar 4, 26$31.19Mar 6, 26$30.01Mar 10, 26$28.79Mar 12, 26$28.00Mar 17, 26$27.65Mar 19, 26$27.20Mar 23, 26$26.74Mar 25, 26$26.74Mar 27, 26$25.84Mar 31, 26$26.08Apr 2, 26$27.04Apr 7, 26$26.67Apr 9, 26$26.53Apr 13, 26$27.57Apr 15, 26$27.58Apr 17, 26$27.58Apr 22, 26$27.79Apr 24, 26$25.85Apr 28, 26$25.90Apr 30, 26$26.23May 4, 26$25.76May 6, 26$24.89May 8, 26$24.53May 12, 26$24.31May 14, 26$23.25May 18, 26$23.29May 20, 26$22.50May 22, 26$23.23May 28, 26$23.84Jun 1, 26$24.07Jun 3, 26$23.15Jun 5, 26$22.80Jun 9, 26$22.51Jun 11, 26$22.08Jun 15, 26$22.42Jun 17, 26$21.50Jun 22, 26$21.06Jun 24, 26$20.38Jun 26, 26$20.25Jul 2, 26$20.66
$20.0952-week range$37.53
Loading valuation history…

Fundamentals

Key fundamentals

$5.7B

Market cap

71.6%

Revenue growth (YoY)

7.2%

Gross margin

$516M

Free cash flow (USD)

$3.7B

Net debt

167.0%

Share dilution

2/5

Graham criteria passed

Defensive-investor screen

Industrials

Sector

Trajectory

Long-term trends

Revenue by year

2021 → 2025

FY 2021$5.1BFY 2022$7.7BFY 2023$7.9BFY 2024$8.4BFY 2025$14.4B
$5.1B$14.4B

Free cash flow by year

2021 → 2025

FY 2021$211.0MFY 2022$108.0MFY 2023$55.0MFY 2024$36.0MFY 2025$516.0M
$211M$516M

Gross margin by year

2021 → 2025

FY 202115.5%FY 202210.0%FY 20239.9%FY 20249.5%FY 20257.2%
15.5%7.2%

Value screen

Graham defensive-investor tests

Computing the scorecard — refreshing any stale inputs…

0

Insider buys · 90 days

0

Insider sells · 90 days

Earnings

Last report: 10-Q filed May 12, 2026

Next expected: not yet scheduled

On the tape

Recent SEC & insider activity

  • Quarterly report10-Q FiledMay 12, 2026Filing
  • 8-K eventEarnings ReleaseMay 11, 2026Filing
  • 8-K eventDebt RefinancingApr 28, 2026Filing

Questions

Frequently asked questions

What is Amentum Holdings, Inc.'s market cap?

Amentum Holdings, Inc. (AMTM) has a market capitalization of $5.7B.

What is AMTM's P/E ratio?

AMTM trades at a price-to-earnings ratio of 85.0, based on its latest fiscal-year diluted earnings per share and the most recent cached price.

What is AMTM's price-to-book (P/B) ratio?

AMTM trades at 1.27 times book value per share.

Are insiders buying AMTM stock?

SEC Form 4 filings show no open-market insider buys at Amentum Holdings, Inc. in the last 90 days (0 sells).

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Timeline

Every filing, insider trade & earnings on a price-anchored timeline

Filing Analyzer

Search the actual 10-K / 10-Q text with AI research angles

News

Latest press coverage in one feed

Data: SEC EDGAR filings and cached fundamental data; prices and ratios use the most recent cached quote and statements (may lag by up to a day). Educational and research purposes only. Not investment advice.