Amentum Holdings, Inc. (AMTM)
Amentum Holdings, Inc. (AMTM) has a 8-report earnings history dating back to Dec 16, 2024. Its average absolute post-earnings move is ±8.39%, and 50.0% of those reactions were positive. Its largest post-earnings gain was +18.16% (Nov 24, 2025) and its largest decline was -12.33% (Feb 09, 2026). The next earnings report is predicted for 2026-11-11 (estimated).
Earnings reactions
How AMTM moved on each past earnings report.
Earnings Impact
Total Earnings
8
Avg Abs. Movement
±8.39%
Positive %
50.0%
Negative %
50.0%
Historical Earnings Statistics
| Date | Timing | Earnings move | SEC Filing |
|---|---|---|---|
| Aug 10, 2026 | ☽ POST | -8.76% | open_in_new |
| May 11, 2026 | ☽ POST | +1.36% | open_in_new |
| Feb 09, 2026 | ☽ POST | -12.33% | open_in_new |
| Nov 24, 2025 | ☽ POST | +18.16% | open_in_new |
Earnings Count
8
Total earnings in dataset
Avg Abs. Movement
±8.39%
Avg % price change on earnings
Institutional ownership
Holdings as of Jun 30, 2026 · SEC 13-F
SEC Filing Types
Recent SEC Filings
3 most recent| Form | Date Filed | View on EDGAR |
|---|---|---|
| 10-Q | 20260811 | open_in_new SEC.gov |
| 8-K | 20260810 | open_in_new SEC.gov |
| SCHEDULE 13G | 20260806 | open_in_new SEC.gov |
Frequently asked about AMTM earnings
When does Amentum Holdings, Inc. report earnings next? expand_more
Amentum Holdings, Inc. (AMTM)'s next earnings date is estimated for 2026-11-11. This is a prediction based on its historical quarterly reporting pattern, not a company-confirmed date.
How much does AMTM stock move after earnings? expand_more
Over 8 reports, AMTM has moved an average of ±8.39% the session after earnings, closing higher 50.0% of the time.
What was AMTM's biggest post-earnings move? expand_more
AMTM's largest post-earnings gain on record was +18.16% on Nov 24, 2025, and its largest decline was -12.33% on Feb 09, 2026.
Where can I find Amentum Holdings, Inc.'s SEC filings? expand_more
All of Amentum Holdings, Inc.'s SEC filings — 10-K, 10-Q, 8-K and more — are listed in the SEC filings section on this page, each linking to the original document on SEC.gov.
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