Amkor Technology (AMKR) — large price moves

Information Technology · NASDAQ

Single sessions where AMKR closed 10% or more away from the previous close, between 2025-10-20 and 2026-10-20. Each one lists the events filed in the 5 days ending at that session, in date order.

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Of the 11 moves listed, 4 have at least one filed event in the 5 days ending at the session, and 7 have 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

2026-08-18 -10.5% $61.30 to $54.84 filed events in the 5 days to 2026-08-18
- 2026-08-17 Insider trade Open-market sale reported by an insider1 transaction · 1 insider · $298,900Source: SEC Form 4
2026-07-30 +12.9% $42.73 to $48.26 filed events in the 5 days to 2026-07-30
- 2026-07-27 Earnings Quarterly results reportedquarter ended 2026-06-30 · reported EPS USD 0.70 against an estimate of USD 0.48 · surprise +45.4%Source: SEC filing calendar + Yahoo earnings history
- 2026-07-27 Material event 8-K filed (material event)accession 0001047127-26-000043Source: SEC EDGAR
- 2026-07-28 Periodic filing 10-Q filedaccession 0001047127-26-000046Source: SEC EDGAR
- 2026-07-28 Filing language risk_factors changed in the 10-Qsection risk_factors · accession 0001047127-26-000046Source: SEC EDGAR (section comparison against the prior filing)
- 2026-07-28 Filing language mdna changed in the 10-Qsection mdna · accession 0001047127-26-000046Source: SEC EDGAR (section comparison against the prior filing)
- 2026-07-30 Insider trade Open-market sale reported by an insider1 transaction · 1 insider · $151,387Source: SEC Form 4
2026-07-28 -24.7% $60.71 to $45.69 filed events in the 5 days to 2026-07-28
- 2026-07-27 Earnings Quarterly results reportedquarter ended 2026-06-30 · reported EPS USD 0.70 against an estimate of USD 0.48 · surprise +45.4%Source: SEC filing calendar + Yahoo earnings history
- 2026-07-27 Material event 8-K filed (material event)accession 0001047127-26-000043Source: SEC EDGAR
- 2026-07-28 Periodic filing 10-Q filedaccession 0001047127-26-000046Source: SEC EDGAR
- 2026-07-28 Filing language risk_factors changed in the 10-Qsection risk_factors · accession 0001047127-26-000046Source: SEC EDGAR (section comparison against the prior filing)
- 2026-07-28 Filing language mdna changed in the 10-Qsection mdna · accession 0001047127-26-000046Source: SEC EDGAR (section comparison against the prior filing)
2026-07-02 -12.9% $79.99 to $69.65 filed events in the 5 days to 2026-07-02

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.
2026-06-11 +11.5% $68.29 to $76.15 filed events in the 5 days to 2026-06-11
- 2026-06-09 Insider trade Open-market sale reported by an insider1 transaction · 1 insider · $70,300Source: SEC Form 4
2026-06-05 -12.0% $73.82 to $64.95 filed events in the 5 days to 2026-06-05

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.
2026-05-26 +11.7% $65.75 to $73.46 filed events in the 5 days to 2026-05-26

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.
2026-04-08 +10.1% $47.62 to $52.42 filed events in the 5 days to 2026-04-08

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.
2026-02-06 +11.5% $44.27 to $49.36 filed events in the 5 days to 2026-02-06

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.
2026-01-05 +12.1% $42.92 to $48.13 filed events in the 5 days to 2026-01-05

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.
2025-11-03 +17.2% $32.28 to $37.84 filed events in the 5 days to 2025-11-03

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: Amkor Technology (AMKR).

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