Amentum (AMTM) — large price moves

Industrials · NYSE

Single sessions where AMTM closed 10% or more away from the previous close, between 2025-10-08 and 2026-10-08. Each one lists the events filed in the 5 days ending at that session, in date order.

Of the 3 moves listed, 2 have at least one filed event in the 5 days ending at the session, and 1 has none. Across the catalog most large moves have nothing filed near them, so an empty list is an ordinary result and not a gap.

Moves

• 2026-02-10 -12.4% $36.59 to $32.06 filed events in the 5 days to 2026-02-10
  • 2026-02-09 Earnings Quarterly results reportedquarter ended 2025-12-31 · reported EPS USD 0.54 against an estimate of USD 0.52 · surprise +4.4%Source: SEC filing calendar + Yahoo earnings history
  • 2026-02-09 Material event 8-K filed (material event)accession 0001628280-26-006491Source: SEC EDGAR
  • 2026-02-10 Periodic filing 10-Q filedaccession 0001628280-26-006676Source: SEC EDGAR
• 2025-11-25 +18.3% $25.37 to $30.00 filed events in the 5 days to 2025-11-25
  • 2025-11-25 Earnings Quarterly results reportedquarter ended 2025-09-30 · reported EPS USD 0.63 against an estimate of USD 0.59 · surprise +6.5%Source: SEC filing calendar + Yahoo earnings history
  • 2025-11-25 Periodic filing 10-K filedaccession 0001628280-25-053993Source: SEC EDGAR
• 2025-11-19 +17.1% $21.79 to $25.52 filed events in the 5 days to 2025-11-19

  No filed event was recorded for this company in the 5 days ending on this session. That is what our sources hold, not a statement about what happened.

These are events filed near a session, listed by date. They are not ranked, and no connection between an event and a price move is stated or implied.

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See the full company profile: Amentum (AMTM).

Informational only — NOT financial advice. Price moves are computed from stored daily closes; filed events come from their own sources with their own dates.