Amentum Holdings (AMTM) Gross Margin (2023 - 2026)
Amentum Holdings (AMTM) posted Gross Margin of 10.32% for fiscal Q3 2026 (quarter ended Jul 3, 2026), down 0.02 percentage points from 10.33% a year earlier but up 0.40 percentage points from the prior quarter.
Amentum Holdings (AMTM) Gross Margin (2023 - 2026) Analysis & Trends
For the trailing twelve months through Jul 3, 2026, Gross Margin at Amentum Holdings was 10.25%, up 0.04 percentage points year-over-year; for FY2025 (ended Oct 3, 2025), it came in at 10.51%, up 1.00 percentage points from FY2024.
- Annual Gross Margin shows a three-year change of +0.47 percentage points (FY2022 to FY2025).
- In prior fiscal years, Amentum Holdings' Gross Margin was 9.51% in FY2024 (-0.43 pp), 9.94% in FY2023 (-0.10 pp) and 10.04% in FY2022.
- Quarterly Gross Margin has run from a low of 8.95% in fiscal Q4 2024 to a high of 10.62% in fiscal Q4 2025 over five years.
- On a year-over-year basis, Gross Margin has declined in each of the last three quarters, with an average year-over-year change of +0.40 percentage points over the last seven quarters.
- According to Business Quant data, Gross Margin for the three prior fiscal quarters was 9.92% (Q2 2026), 10.07% (Q1 2026) and 10.62% (Q4 2025).
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Gross Margin (Qtr) |
|---|---|---|---|---|---|
| 1 | General Electric | 330.21 Bn | 284.21 Bn | 4.68 Bn | 35.03% |
| 2 | Rtx | 252.88 Bn | 226.09 Bn | 5.13 Bn | 20.77% |
| 3 | Boeing | 145.76 Bn | 52.46 Bn | 2.41 Bn | 9.83% |
| 4 | Lockheed Martin | 119.56 Bn | 106.28 Bn | 2.45 Bn | 12.19% |
| 5 | Howmet Aerospace | 91.38 Bn | 86.98 Bn | 951.00 Mn | 37.34% |
| 6 | General Dynamics | 90.40 Bn | 77.51 Bn | 2.18 Bn | 15.49% |
| 7 | Motorola Solutions | 74.81 Bn | 71.18 Bn | 1.68 Bn | 53.56% |
| 8 | Northrop Grumman | 71.85 Bn | 61.10 Bn | 2.12 Bn | 19.50% |
| 9 | Honeywell International | 67.04 Bn | 19.48 Bn | 3.65 Bn | 37.59% |
| 10 | Amentum Holdings | 4.52 Bn | 3.04 Bn | 360.00 Mn | 10.32% |
Historic Data
| Date | Value |
|---|---|
| Jul 3, 2026 | 10.32% |
| Apr 3, 2026 | 9.92% |
| Jan 2, 2026 | 10.07% |
| Oct 3, 2025 | 10.62% |
| Jun 27, 2025 | 10.33% |
| Mar 28, 2025 | 10.51% |
| Dec 27, 2024 | 10.57% |
| Sep 27, 2024 | 8.95% |
| Jun 28, 2024 | 9.62% |
| Mar 29, 2024 | 9.75% |
| Dec 29, 2023 | 9.78% |
Amentum Holdings Gross Margin API
Pull this series into your own models, spreadsheets and apps with the Business Quant
Historical Metrics API. The request below matches the chart above — change the
frequency, period or values and it follows. Swap YOUR_API_KEY for your own key.
https://data.businessquant.com/historic?slug=gross-margin&ticker=AMTM&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "gross-margin", "ticker": "AMTM", "period": "max", "api_key": "YOUR_API_KEY"}
data = requests.get(url, params=params).json()const res = await fetch("https://data.businessquant.com/historic?slug=gross-margin&ticker=AMTM&period=max&api_key=YOUR_API_KEY");
const data = await res.json();