AMTECH SYSTEMS INC (ASYS) — large price moves

Information Technology · NASDAQ

Single sessions where ASYS 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.

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Of the 17 moves listed, 4 have at least one filed event in the 5 days ending at the session, and 13 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

2026-08-19 -12.2% $16.88 to $14.82 filed events in the 5 days to 2026-08-19

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.
2026-08-04 +11.1% $15.70 to $17.44 filed events in the 5 days to 2026-08-04

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.
2026-07-21 +10.2% $16.32 to $17.98 filed events in the 5 days to 2026-07-21

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.
2026-07-01 -11.2% $23.08 to $20.50 filed events in the 5 days to 2026-07-01

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.
2026-06-30 +12.1% $20.59 to $23.08 filed events in the 5 days to 2026-06-30

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 +14.7% $19.71 to $22.60 filed events in the 5 days to 2026-06-11

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.
2026-06-05 -15.6% $21.91 to $18.49 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.
2026-05-08 +18.0% $18.21 to $21.49 filed events in the 5 days to 2026-05-08
- 2026-05-07 Earnings Quarterly results reportedquarter ended 2026-03-31 · reported EPS USD 0.10 against an estimate of USD 0.05 · surprise +100.0%Source: SEC filing calendar + Yahoo earnings history
- 2026-05-07 Periodic filing 10-Q filedaccession 0001193125-26-211854Source: SEC EDGAR
- 2026-05-07 Material event 8-K filed (material event)accession 0001193125-26-211838Source: SEC EDGAR
- 2026-05-07 Filing language mdna changed in the 10-Qsection mdna · accession 0001193125-26-211854Source: SEC EDGAR (section comparison against the prior filing)
2026-04-13 +12.9% $14.75 to $16.66 filed events in the 5 days to 2026-04-13

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.
2026-03-16 -10.3% $12.98 to $11.65 filed events in the 5 days to 2026-03-16

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.
2026-02-11 -11.6% $12.99 to $11.49 filed events in the 5 days to 2026-02-11

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.
2026-02-09 +12.9% $11.12 to $12.56 filed events in the 5 days to 2026-02-09
- 2026-02-05 Earnings Quarterly results reportedquarter ended 2025-12-31 · reported EPS USD 0.03 against an estimate of USD 0.07 · surprise -57.1%Source: SEC filing calendar + Yahoo earnings history
- 2026-02-05 Periodic filing 10-Q filedaccession 0001193125-26-039360Source: SEC EDGAR
- 2026-02-05 Material event 8-K filed (material event)accession 0001193125-26-039351Source: SEC EDGAR
2026-02-06 -29.9% $15.87 to $11.12 filed events in the 5 days to 2026-02-06
- 2026-02-05 Earnings Quarterly results reportedquarter ended 2025-12-31 · reported EPS USD 0.03 against an estimate of USD 0.07 · surprise -57.1%Source: SEC filing calendar + Yahoo earnings history
- 2026-02-05 Periodic filing 10-Q filedaccession 0001193125-26-039360Source: SEC EDGAR
- 2026-02-05 Material event 8-K filed (material event)accession 0001193125-26-039351Source: SEC EDGAR
2026-02-04 -10.5% $17.60 to $15.75 filed events in the 5 days to 2026-02-04

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.
2025-12-11 +17.7% $9.34 to $10.99 filed events in the 5 days to 2025-12-11
- 2025-12-10 Earnings Quarterly results reportedquarter ended 2025-09-30 · reported EPS USD 0.10 against an estimate of USD 0.01 · surprise +1900.0%Source: SEC filing calendar + Yahoo earnings history
- 2025-12-10 Periodic filing 10-K filedaccession 0001193125-25-314147Source: SEC EDGAR
2025-10-14 -11.5% $9.29 to $8.22 filed events in the 5 days to 2025-10-14

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.
2025-10-10 -11.5% $10.00 to $8.85 filed events in the 5 days to 2025-10-10

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: AMTECH SYSTEMS INC (ASYS).

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