# Amentum Holdings (AMTM.US)

Canonical: https://gigainvestors.com/s/AMTM

Analysis as of: 2026-10-16T07:26:30.229Z. 

Listing currency: USD. Reporting currency: USD.

## Verdict

Not enough history yet

Quality tests for Buy: not passed (profit record: fail; earnings resilience is evidence only). Published buy qualification: no.

Share price: $19.09 per share; close as of 2026-10-15.

## Checklist

### understandable: na

### moat: na

### economics: na

### management: na

### accounting: na

## Holders

- [Bill Ruane](https://gigainvestors.com/RC): tracked 13F investor; follow the investor page for holding quarter and amounts.

## Price story

Down 47% since Jan 2026 · "Amentum (NYSE:AMTM) Misses Q2 CY2026 Revenue Estimates, Stock Drops 15.1%" (finance.yahoo.com, Aug 2026)

Story as of 2026-10-16T09:58:18.356Z; price observation 2026-10-15.

- 2025-04-14: Amentum Secures $247 Million Global Counter-Threat Finance Contract ([finance.yahoo.com](https://finance.yahoo.com/news/amentum-secures-247-million-global-123000331.html))

- 2025-06-25: Amentum (AMTM) Strengthens North American Operations, Announces C$1.2 Billion Contract with AECL ([finance.yahoo.com](https://finance.yahoo.com/news/amentum-amtm-strengthens-north-american-202825403.html))

- 2025-12-09: Amentum Wins $120 Million DISA Computer Processing Contract ([finance.yahoo.com](https://finance.yahoo.com/news/amentum-wins-120-million-disa-133000795.html))

- 2026-01-27: Amentum wins up to $730M contracts from EDF ([seekingalpha.com](https://seekingalpha.com/news/4542749-amentum-wins-up-to-730m-contracts-from-edf?utm_source=feed_news_all&utm_medium=referral&feed_item_type=news))

- 2026-04-01: Amentum-led JV secures 14-year $406M contract for UK’s first small modular reactors ([seekingalpha.com](https://seekingalpha.com/news/4571141-amentum-led-jv-secures-14-year-406m-contract-for-uks-first-small-modular-reactors?utm_source=feed_news_all&utm_medium=referral&feed_item_type=news))

- 2026-08-10: Amentum (NYSE:AMTM) Misses Q2 CY2026 Revenue Estimates, Stock Drops 15.1% ([finance.yahoo.com](https://finance.yahoo.com/markets/stocks/articles/amentum-nyse-amtm-misses-q2-204649063.html))

## Owner memo

Memo as of 2026-10-16T08:06:05.509Z.

### How it makes money

Operates in specialty business services; annual sales are USD 14.4 billion.

- Source: https://www.sec.gov/Archives/edgar/data/2011286/000162828025053993/amtm-20251003.htm (filed 2025-11-25); FY2025: revenue 14393000000; grossProfit 1034000000; margin = grossProfit / revenue.

- Source: https://eodhd.com/financial-apis/stock-etfs-fundamental-data-feeds/ (filed 2026-10-16); AMTM.US: Amentum Holdings, Inc. engages in the provision of engineering and technology solutions in the United States and internationally. It operates through two segments, Digital Solutions and Global Engineering Solutions. The company offers digital and data-driven solutions, including intelligence analytics, space system development, cybersecurity, and IT to the federal government and commercial clients. It also provides large-scale environmental remediation, nuclear power solutions, platform engineering, sustainment, and supply chain management for the U.S. government and allied nations. The company was incorporated in 2023 and is headquartered in Chantilly, Virginia.

### Why customers stay

Margins ranged from 7.2% to 9.9% during 2023–25.

- Source: https://eodhd.com/financial-apis/stock-etfs-fundamental-data-feeds/ (filed 2025-11-25); FY2023: grossProfit / revenue = 9.9%.

- Source: https://eodhd.com/financial-apis/stock-etfs-fundamental-data-feeds/ (filed 2025-11-25); FY2024: grossProfit / revenue = 9.5%.

- Source: https://www.sec.gov/Archives/edgar/data/2011286/000162828025053993/amtm-20251003.htm (filed 2025-11-25); FY2025: grossProfit / revenue = 7.2%.

### Where the cash goes

Paid no dividends in 5 years.

- Source: https://eodhd.com/financial-apis/stock-etfs-fundamental-data-feeds/ (filed 2025-11-25); FY2021: growth capex 0; upkeep 34000000; owner earnings 237000000. Growth capex / owner earnings = 0.

- Source: https://eodhd.com/financial-apis/stock-etfs-fundamental-data-feeds/ (filed 2025-11-25); FY2022: growth capex 0; upkeep 18000000; owner earnings 190000000. Growth capex / owner earnings = 0.

- Source: https://eodhd.com/financial-apis/stock-etfs-fundamental-data-feeds/ (filed 2025-11-25); FY2024: growth capex 0; upkeep 11000000; owner earnings 158000000. Growth capex / owner earnings = 0.

- Source: https://www.sec.gov/Archives/edgar/data/2011286/000162828025053993/amtm-20251003.htm (filed 2025-11-25); FY2025: growth capex 0; upkeep 27000000; owner earnings 558000000. Growth capex / owner earnings = 0.

- Source: https://eodhd.com/financial-apis/stock-etfs-fundamental-data-feeds/ (filed 2025-11-25); Dividend observations: [[2021,0],[2022,0],[2023,0],[2024,0],[2025,0]]. Zero only counted when supported by a complete cash-flow statement.

### Are managers owners

Insiders own 1.2% of the company.

- Source: https://eodhd.com/financial-apis/stock-etfs-fundamental-data-feeds/ (filed 2026-10-16); AMTM.US SharesStats.PercentInsiders = 1.173 percentage points; cache date 2026-10-16.

### What the price says

The price is 0.3 times annual sales.

- Source: https://eodhd.com/financial-apis/stock-etfs-fundamental-data-feeds/ (filed 2025-11-25); Closing price 19.09 USD; reporting-to-trading FX 1; FY2025 annual sales per share 58.98770491803279; price multiple 0.3236267630097964. FY2025 cash earnings/share 2.2868852459016393. Closing-price date 2026-10-15.

## Monthly share-price history (USD per share)

- 2024-09: $32.25 per share

- 2024-10: $29.74 per share

- 2024-11: $24.35 per share

- 2024-12: $21.03 per share

- 2025-01: $20.97 per share

- 2025-02: $19.64 per share

- 2025-03: $18.20 per share

- 2025-04: $21.82 per share

- 2025-05: $20.66 per share

- 2025-06: $23.61 per share

- 2025-07: $24.97 per share

- 2025-08: $24.95 per share

- 2025-09: $23.95 per share

- 2025-10: $22.41 per share

- 2025-11: $28.63 per share

- 2025-12: $29.00 per share

- 2026-01: $35.78 per share

- 2026-02: $29.87 per share

- 2026-03: $26.08 per share

- 2026-04: $26.23 per share

- 2026-05: $23.23 per share

- 2026-06: $20.67 per share

- 2026-07: $22.20 per share

- 2026-08: $19.99 per share

- 2026-09: $18.12 per share

- 2026-10: $19.09 per share

## Annual estimated value (USD per share)

Historical values use today's bond yield for every fiscal year

Historical values use today's FX rate into trading currency for every fiscal year

Historical values use current restated fundamentals and current commodity classification; they are not point-in-time estimates

## Sources

[Original 10-K filing](https://www.sec.gov/Archives/edgar/data/2011286/000162828025053993/amtm-20251003.htm); period 2025-10-03, filed 2025-11-25.

Estimates depend on assumptions and are not guarantees or investment advice. Underlying data remains subject to its source licenses; public reading does not grant bulk redistribution rights.

## Reported holder observations

- [Bill Ruane](https://gigainvestors.com/RC): 537,213 AMTM shares; USD 11,104,000 reported position value; 0.17% of portfolio; reduce; quarter 2026 Q2.

# AMTM — Amentum Holdings Inc.

Held by 1 investor · USD 11,104,000 total · 2026 Q2 · reported price USD 20.67 (split-adjusted).
Page: https://gigainvestors.com/s/AMTM

## Holders (2026 Q2)

| Investor | Value | % of their portfolio | This quarter |
|---|---:|---:|---|
| Bill Ruane (https://gigainvestors.com/RC) | USD 11,104,000 | 0.2% | reduce -66.9% |

## Total held by quarter

- 2024 Q3: USD 81,608,270 · 1 holder · USD 32.25
- 2024 Q4: USD 51,235,263 · 1 holder · USD 21.03
- 2025 Q1: USD 43,553,310 · 1 holder · USD 18.20
- 2025 Q2: USD 57,649,552 · 1 holder · USD 23.61
- 2025 Q3: USD 58,048,765 · 1 holder · USD 23.95
- 2025 Q4: USD 69,429,741 · 1 holder · USD 29.00
- 2026 Q1: USD 42,327,371 · 1 holder · USD 26.08
- 2026 Q2: USD 11,104,000 · 1 holder · USD 20.67