| 2025-11-24 | +21.2% | earnings | Seeking Alpha | Amentum Holdings Non-GAAP EPS of $0.63 beats by $0.04, revenue of $3.92B beats by $310M |
| 2025-11-24 | +21.2% | earnings | Seeking Alpha | Amentum Holdings Q4 2025 Earnings Preview |
| 2025-11-24 | +21.2% | earnings | Yahoo Finance | Amentum Holdings (AMTM) Q4 Earnings and Revenues Beat Estimates - Yahoo Finance |
| 2025-11-24 | +21.2% | news | Stocktwits | Why Is Amentum Stock Rising Over 9% Premarket Today? - Stocktwits |
| 2026-02-10 | -16.7% | earnings | Seeking Alpha | Amentum reaffirms $13.95B–$14.3B revenue guidance for fiscal 2026 amid accelerating growth in nuclear and space sectors |
| 2026-02-10 | -16.7% | earnings | Seeking Alpha | Amentum Holdings, Inc. (AMTM) Q1 2026 Earnings Call Transcript |
| 2026-02-10 | -16.7% | earnings | Seeking Alpha | Amentum Holdings, Inc. 2026 Q1 - Results - Earnings Call Presentation |
| 2026-02-10 | -16.7% | earnings | Seeking Alpha | Amentum misses top-line and bottom-line estimates; reaffirms FY26 outlook |
| 2026-02-09 | -14.8% | earnings | Seeking Alpha | Amentum Holdings Q1 2026 Earnings Preview |
| 2025-11-25 | +14.0% | news | Seeking Alpha | Amentum targets up to $1.14B adjusted EBITDA in fiscal 2026 as margin expansion and growth markets drive outlook |
| 2025-11-25 | +14.0% | earnings | Seeking Alpha | Amentum Holdings, Inc. (AMTM) Q4 2025 Earnings Call Transcript |
| 2025-11-25 | +14.0% | news | Stocktwits | Why Is AMTM Stock Rising Today? - Stocktwits |
| 2025-11-19 | +13.0% | news | Seeking Alpha | Amentum Holdings gains after bullish Citron post |
| 2025-03-10 | -11.3% | expansion | Business Wire | Amentum Announces Launch of Secondary Offering - Business Wire |
| 2025-09-30 | +9.5% | expansion | Seeking Alpha | Amentum Services secures $995 million U.S. Air Force contract |
| 2026-01-02 | +7.6% | M&A | Seeking Alpha | Amentum: Post-Merger Integration Makes This A Show-Me Story |
| 2026-04-23 | -7.4% | earnings | Business Wire | Amentum to Host Second Quarter Fiscal Year 2026 Earnings Conference Call on May 12, 2026 |
| 2026-03-10 | -7.3% | legal | Seeking Alpha | Amentum-led JV secures $112M nuclear cleanup project in Europe |
| 2025-11-26 | -5.8% | earnings | Seeking Alpha | Amentum Holdings, Inc. 2025 Q4 - Results - Earnings Call Presentation |
| 2025-11-26 | -5.8% | earnings | Yahoo Finance | Amentum (AMTM) Hits All-Time High on Q4 Blowout - Yahoo Finance |
| 2026-01-09 | +5.1% | news | Yahoo Finance | Is Amentum Holdings (AMTM) Pricing Reflect Recent 51% Rally Or DCF Upside? - Yahoo Finance |
| 2026-01-01 | +4.9% | analyst | Seeking Alpha | Amentum: A Fine Close To The Year, With Favorable Prospects Ahead (Rating Upgrade) |
| 2026-02-11 | -4.6% | earnings | FinancialContent | Amentum Holdings (AMTM): The New Titan of Government Services and Mission-Critical Tech - FinancialContent |
| 2025-10-07 | -4.1% | news | Seeking Alpha | Amentum Holdings: Setting Up Nicely For 2026 |
| 2025-10-07 | -4.1% | news | Seeking Alpha | Amentum Holdings: Setting Up Nicely For 2026 - Seeking Alpha |
| 2024-10-27 | +3.8% | news | Zacks Investment Research | Should I buy Amentum Holdings, Inc. (AMTM) - Zacks Investment Research |
| 2025-04-15 | +3.6% | news | Seeking Alpha | Amentum: Stock Down, Setup Improving, Growth Potential (NYSE:AMTM) - Seeking Alpha |
| 2026-01-30 | -3.5% | news | Investor's Business Daily | Private Equity’s Amentum Playbook: A Nuclear And Space Makeover - Investor's Business Daily |
| 2026-02-12 | +3.5% | news | Seeking Alpha | The Sell-Off Was A Gift: Amentum Remains A Buy |
| 2026-04-22 | -3.4% | executive | Business Wire | Amentum Appoints Joseph DeNardi as Senior Vice President and Head of Investor Relations |
| 2026-04-10 | +3.0% | expansion | Insider Monkey | Amentum (AMTM) Secures $425M Aerial Firefighting Contract with Cal Fire |
| 2025-04-30 | -3.0% | news | PR Newswire | Jacobs Solutions Announces Special Dividend of 7,299,065 Shares of Amentum Common Stock - PR Newswire |
| 2026-02-07 | -3.0% | earnings | Finviz | What To Expect From Amentum's (AMTM) Q4 Earnings - Finviz |
| 2026-04-01 | +2.8% | expansion | Seeking Alpha | Amentum-led JV secures 14-year $406M contract for UKs first small modular reactors |
| 2026-04-01 | +2.8% | news | Seeking Alpha | Amentum: Ancillary News Indicates Thesis Still Intact |
| 2026-04-13 | +2.3% | earnings | Business Wire | Amentum Powers Ground Systems Operations for NASA’s Historic Artemis II Mission |
| 2026-04-07 | -2.3% | expansion | MT Newswires | Amentum Awarded $450 Million Contract to Support Aerial Firefighting in California |
| 2026-04-07 | -2.3% | expansion | Business Wire | Amentum Secures $425 Million Contract to Support California’s Aerial Firefighting Operations |
| 2026-04-07 | -2.3% | expansion | Seeking Alpha | Amentum wins $425M California aerial firefighting contract |
| 2026-04-07 | -2.3% | earnings | MarketBeat | Delphi Management Inc. MA Invests $1.42 Million in Amentum Holdings, Inc. $AMTM - MarketBeat |
| 2026-03-29 | -2.3% | news | Yahoo Finance | Amentum Holdings (AMTM) Poised for Growth Amid AI Disruption Insulation - Yahoo Finance |
| 2026-02-23 | -2.2% | earnings | Yahoo Finance | Diverse Capabilities and Merger Propel Amentum Holdings, Inc. (AMTM) to Robust Earnings Growth - Yahoo Finance |
| 2025-12-09 | +2.1% | expansion | Seeking Alpha | Amentum wins $120 million DISA computer processing contract |
| 2026-01-27 | +2.0% | expansion | Seeking Alpha | Amentum wins up to $730M contracts from EDF |
| 2026-02-24 | -1.6% | earnings | Finviz | Amentum Holdings (AMTM) Reports $3.24B in FQ1 2026 Revenue and 3% Normalized Growth - Finviz |
| 2026-03-30 | -1.6% | earnings | MarketBeat | Amentum Holdings, Inc. $AMTM Shares Bought by SG Americas Securities LLC - MarketBeat |
| 2026-01-22 | +1.5% | expansion | Seeking Alpha | Amentum-led Consortium secures $207M contract from Dutch government |
| 2025-12-11 | +1.3% | expansion | Seeking Alpha | Amentum wins defense threat reduction agency prime contract |
| 2026-04-20 | +1.1% | news | StockStory | 2 of Wall Street’s Favorite Stocks to Consider Right Now and 1 That Underwhelm |
| 2026-02-17 | -1.1% | earnings | simplywall.st | Amentum Holdings' (NYSE:AMTM) Performance Is Even Better Than Its Earnings Suggest - simplywall.st |
| 2026-03-20 | -1.0% | expansion | Seeking Alpha | Investing in aliens? Government websites soon to be launched by Homeland Security |
| 2025-09-22 | +1.0% | news | TradingView | ETFs Investing in Amentum Holdings, Inc. Stocks - TradingView |
| 2026-03-31 | +1.0% | earnings | MarketBeat | Amentum Holdings, Inc. (NYSE:AMTM) Given Consensus Rating of "Hold" by Analysts - MarketBeat |
| 2025-12-16 | -0.9% | analyst | Seeking Alpha | General Dynamics, L3Harris upgraded at Morgan Stanley; Lockheed Martin downgraded |
| 2024-09-30 | +0.8% | news | TradingView | AMTM Stock Price and Chart — NYSE:AMTM - TradingView |
| 2026-01-29 | +0.7% | news | TradingView | Are Options Traders Betting on a Big Move in Amentum Holdings Stock? - TradingView |
| 2025-10-17 | -0.7% | news | Seeking Alpha | Amentum Holdings: Near-Term Weakness Overwhelms The Long-Term Bull Case |
| 2025-10-17 | -0.7% | news | Seeking Alpha | Amentum Stock: Near-Term Weakness Overwhelms The Long-Term Bull Case (NYSE:AMTM) - Seeking Alpha |
| 2025-12-24 | +0.6% | earnings | The Globe and Mail | Amentum Stock Draws Fresh Buying Amid $14.4 Billion Revenue Year and 51% Stock Run - The Globe and Mail |
| 2026-01-20 | +0.5% | news | Seeking Alpha | Rolls-Royce, Amentum partner to deploy small modular reactors in U.K., Czech Republic |
| 2026-03-04 | -0.4% | news | Seeking Alpha | Amentum Holdings, Inc. (AMTM) Presents at 47th Annual Raymond James Institutional Investor Conference Transcript |
| 2026-04-19 | +0.4% | news | Simply Wall St. | Assessing Amentum Holdings (AMTM) Valuation After Recent Share Price Momentum And Backlog Growth |
| 2026-04-18 | +0.4% | news | Simply Wall St. | Is It Time To Reassess Amentum Holdings (AMTM) After Its Strong One Year Share Price Run? |
| 2026-04-21 | +0.2% | earnings | MarketBeat | Legacy Advisors LLC Invests $284.61 Million in Amentum Holdings, Inc. $AMTM - MarketBeat |
| 2026-02-19 | -0.1% | news | Seeking Alpha | Amentum to open new global headquarters in Reston |
| 2025-03-23 | +0.1% | news | Seeking Alpha | Amentum Holdings: The Most Undervalued Nuclear Stock (NYSE:AMTM) - Seeking Alpha |
| 2026-04-26 | — | earnings | Insider Monkey | Amentum Holdings Inc. (AMTM): A Top Industrial Stock Positioned for Growth and Profitability |
| 2026-04-26 | — | earnings | Yahoo Finance | Amentum Holdings Inc. (AMTM): A Top Industrial Stock Positioned for Growth and Profitability - Yahoo Finance |
| 2026-04-24 | — | earnings | MarketBeat | M&T Bank Corp Acquires 454,305 Shares of Amentum Holdings, Inc. $AMTM - MarketBeat |