The company
Amentum Holdings, Inc.
AMTM · NYSE
AMTM stood above a rising 150-day average in 17 of the last 52 weekly readings, and has been out of that trend for the last 31 weeks. It is 13.5% below that average now. Business Services: 34% of its 116 stocks in an uptrend (−3 points in four weeks); Industrials: 27% (−4 points in four weeks).
Statistics
- Rotation
- Not moving yet
- Weeks in an uptrend
- out for 31
- Industry in uptrend
- 34% -3 in 4 wk
- Insider buys, 12 months
- $0
- Insider sales, 12 months
- $0
- Officials’ trades on record
- 5
- Institutions holding
- 426 (-25)
In the rotation
Each square a week: lit when it closed above a rising 150-day average. 17 of 52 weeks.
Business Services: A minority of its stocks are in an uptrend and the share has held steady. Industrials: A minority of its stocks are in an uptrend and the share has been slipping.
Money in and out
Open-market buys above the line and sales below, in dollars.
Congress and officials
5 disclosed lines: House 5, Senate 0, executive 0; 2 people.
| Who | Did | Amount | Traded |
|---|---|---|---|
| William R. Keating House: U.S. House ClerkMA09 | sold | $1k–$15k | 31 Oct 2024filed 6 Nov 2024 |
| Thomas H. Kean, Jr. House: U.S. House ClerkNJ07 | exchanged | $1k–$15k | 30 Sep 2024filed 15 Oct 2024 |
| Thomas H. Kean, Jr. House: U.S. House ClerkNJ07 | exchanged | $1k–$15k | 30 Sep 2024filed 15 Oct 2024 |
| Thomas H. Kean, Jr. House: U.S. House ClerkNJ07 | exchanged | $1k–$15k | 30 Sep 2024filed 15 Oct 2024 |
| Thomas H. Kean, Jr. House: U.S. House ClerkNJ07 | exchanged | $1k–$15k | 30 Sep 2024filed 15 Oct 2024 |
Insiders
No open-market buy or sale by its insiders on record.
Lines filed since 2 January 2026, newest first; every insider’s older lines are on their own page.
Institutions
Quarter to 30 Jun 2026, against 31 Mar 2026; newest filing 31 Aug 2026.
| Manager | Shares | Change |
|---|---|---|
| AMERICAN SECURITIES LLCunchanged · filed 26 Aug 2026 | 45,026,743$930.7M | 00.0% |
| Invesco Ltd.added · filed 14 Aug 2026 | 24,954,251$515.8M | +3,480,473+16.2% |
| BlackRock, Inc.added · filed 7 Aug 2026 | 17,906,984$370.1M | +65,701+0.4% |
| PRIMECAP MANAGEMENT COadded · filed 14 Aug 2026 | 12,285,504$253.9M | +200,210+1.7% |
| VANGUARD PORTFOLIO MANAGEMENT LLCadded · filed 13 Aug 2026 | 7,948,385$164.3M | +95,434+1.2% |
| VANGUARD CAPITAL MANAGEMENT LLCadded · filed 13 Aug 2026 | 6,711,987$138.7M | +61,108+0.9% |
| FMR LLCadded · filed 13 Aug 2026 | 5,679,175$117.4M | +100,789+1.8% |
| DIMENSIONAL FUND ADVISORS LPadded · filed 11 Aug 2026 | 5,537,696$114.5M | +1,750,276+46.2% |
| STATE STREET CORPadded · filed 7 Aug 2026 | 5,151,772$106.5M | +72,731+1.4% |
| FRONTIER CAPITAL MANAGEMENT CO LLCreduced · filed 14 Aug 2026 | 4,143,971$85.7M | -786,239−15.9% |
Everyone who traded it
Same industry
Government contracts
From its SEC filings
Analyst forecasts
No analyst forecasts yet.