$AMTM
Amentum Holdings, Inc.
XNYS•Technology•Services-Business Services, Nec
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Plans & pricingDonateAmentum Holdings, Inc.
XNYS•Technology•Services-Business Services, Nec
Why is AMTM up today? It is at $19.12 (+0.79%), and our scanner flagged it 68 times on unusual volume this month. See the catalyst behind the move, real-time alerts the moment AMTM spikes, and full due diligence on AMTM — key stats, earnings, dilution and insider activity. Free.
Our scanner flagged $AMTM 68 times in the last 30 days. Create a free account to track $AMTM, build a watchlist, and get instant unusual-volume alerts, with a full day of premium now and 5 more when you verify your email, no card needed.
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AMTM is one of today's most active names, trading on unusually heavy volume (live price and day move above). Our scanner has fired 1 unusual-volume and momentum alert on AMTM today, peaking at 4.1x its normal volume.
Latest filing8-KExecutive / Board ChangeOct 2, 2026 · 6 days agoSources: float & market cap via Polygon · short interest via FINRA · borrow & shortability via Alpaca · SSR from Reg SHO 201 · filings & dilution via SEC EDGAR · analysts via Nasdaq.
Auto-generated from public data for research and education. Not investment advice.
| Insider | Action | Shares | % of position | Owns after | Value | Date |
|---|---|---|---|---|---|---|
Thompson Christopher M.T. Director | Sold (automatic/other) | -4K | sold 18% | 20K | n/a | Aug 14, 26 |
Arnette Stephen A Officer | Sold (automatic/other) | -3K | sold 3.0% | 107K | $82K at $24.89 | May 6, 26 |
Arnette Stephen A Officer | Other | 14K | added 14% | 110K | n/a | May 6, 26 |
Bruning Jill L Officer | Sold (automatic/other) | -3K | sold 1.4% | 197K | $68K at $24.89 | May 6, 26 |
Bruning Jill L Officer | Other | 9K | added 4.7% | 200K | n/a | May 6, 26 |
Johnson Travis Barton Officer | Sold (automatic/other) | -4K | sold 3.4% | 118K | $102K at $24.89 | May 6, 26 |
Johnson Travis Barton Officer | Other | 14K | added 13% | 122K | n/a | May 6, 26 |
Mullen Sean Thomas Officer | Sold (automatic/other) | -3K | sold 7.8% | 32K | $69K at $24.89 | May 6, 26 |
Mullen Sean Thomas Officer | Other | 9K | added 35% | 35K | n/a | May 6, 26 |
Heller John E. Officer | Sold (automatic/other) | -8K | sold 2.1% | 376K | $204K at $24.89 | May 6, 26 |
Heller John E. Officer | Other | 18K | added 5.0% | 384K | n/a | May 6, 26 |
Bruning Jill L Officer | Sold (automatic/other) | -30K 0.01% of company | sold 14% | 191K | n/a | Mar 4, 26 |
Recent Form-4 filings via Nasdaq. Open-market buys are the signal worth watching. Grants and automatic (10b5-1) sells are routine. “% of position” is the share of that insider’s own holding the trade moved. Not investment advice.
Blend of news sentiment, today’s move, and community votes. Not investment advice.
News, unusual-volume alerts, AI-trader trades and community chatter - the whole story, newest first.


The tickers our scanner is lighting up most over the last 48 hours.
Comparable names in services-business services, nec, closest in size first.
AMTM is one of today's most active names, trading on unusually heavy volume (live price and day move above). Our scanner has fired 1 unusual-volume and momentum alert on AMTM today, peaking at 4.1x its normal volume.
AMTM last traded at $19.12, up 0.79% on the day. The price and chart above update live during market hours (4 AM to 8 PM ET).
Amentum Holdings, Inc. (AMTM) is next expected to report earnings on Monday, November 23, 2026, about 45 days away. Earnings reports often cause large overnight gaps, so many traders manage risk around the date. The date can shift until the company officially confirms it.
The AMTM Live Alerts panel on this page streams real-time unusual volume (RVOL), momentum, halt and 200-EMA alerts from our scanner the moment they fire. Our scanner has flagged AMTM 68 times in the last 30 days.
AMTM (Amentum Holdings, Inc.) trades on XNYS, with a market cap of about $4.64B in the SERVICES-BUSINESS SERVICES, NEC sector.
That depends on your strategy and risk. Day traders look for volume, volatility and a clear trend. Use the live chart, RVOL alerts and 200-EMA context on this page to judge AMTM for yourself. This is not investment advice.
Live data from TheDesperateTrader scanner. Not investment advice.
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