FY2025 · period end Sep '25 · from the 10-K filed Dec 10, 2025
| Metric | FY25Sep '25 | FY24Sep '24 | FY23Sep '23 | FY22Sep '22 | FY21Sep '21 |
|---|---|---|---|---|---|
| Revenue | $0.08B | $0.10B | $0.11B | $0.11B | $0.09B |
| Gross Profit | $0.03B | $0.04B | $0.04B | $0.04B | $0.03B |
| Operating Income | negative: -$0.03B | negative: -$0.01B | negative: -$0.01B | $0.02B | $0.00B |
| Net Income | negative: -$0.03B | negative: -$0.01B | negative: -$0.01B | $0.02B | $0.00B |
| EPS (Diluted) | negative: -$2.12 | negative: -$0.60 | negative: -$0.89 | $1.22 | $0.11 |
| Metric | FY25Sep '25 | FY24Sep '24 | FY23Sep '23 | FY22Sep '22 | FY21Sep '21 |
|---|---|---|---|---|---|
| Total Assets | $0.09B | $0.12B | $0.14B | $0.13B | $0.12B |
| Total Liabilities | $0.04B | $0.04B | $0.05B | $0.04B | $0.03B |
| Stockholders' Equity | $0.05B | $0.08B | $0.09B | $0.10B | $0.09B |
| Cash & Equivalents | $0.02B | $0.01B | $0.01B | $0.05B | $0.03B |
| Total Debt | $0.00B | $0.00B | $0.01B | $0.00B | $0.00B |
| Metric | FY25Sep '25 | FY24Sep '24 | FY23Sep '23 | FY22Sep '22 | FY21Sep '21 |
|---|---|---|---|---|---|
| Operating Cash Flow | $0.01B | $0.01B | negative: -$0.01B | $0.01B | negative: -$0.01B |
| Capital Expenditures | $0.00B | $0.00B | $0.00B | $0.00B | $0.00B |
| Free Cash Flow | $0.01B | $0.00B | negative: -$0.01B | $0.00B | negative: -$0.01B |
| Metric | FY25Sep '25 | FY24Sep '24 | FY23Sep '23 | FY22Sep '22 | FY21Sep '21 |
|---|---|---|---|---|---|
| Gross Margin | 34.0% | 35.8% | 31.4% | 37.2% | 40.5% |
| Operating Margin | negative: -0.4% | negative: -0.1% | negative: -0.1% | 0.2% | 4.4% |
| Net Margin | negative: -0.4% | negative: -0.1% | negative: -0.1% | 0.2% | 1.8% |
| Return on Equity | negative: -44.7% | negative: -9.9% | negative: -13.5% | 18.9% | 1.8% |
| Return on Assets | negative: -28.6% | negative: -6.6% | negative: -9.3% | 13.9% | 1.3% |
| Debt / Equity | 0.00× | 0.00× | 0.10× | 0.00× | 0.05× |
Showing the most recent 5 annual periods. Get 15 years of history on the Pro plan, or unlimited history back to 1993 plus the smart-money dataset and webhooks on Institutional.
| Form | Accession ID | Report Date | Filing Date | Accepted At | Source |
|---|---|---|---|---|---|
| 8-K | 0000720500-26-000011 | Aug 4, 2026 | Aug 5, 2026 | Aug 5, 2026 20:15 UTC | EDGAR |
| 10-Q | 0000720500-26-000010 | Jun 30, 2026 | Aug 5, 2026 | Aug 5, 2026 20:06 UTC | EDGAR |
| 8-K | 0000720500-26-000009 | Aug 5, 2026 | Aug 5, 2026 | Aug 5, 2026 20:00 UTC | EDGAR |
| 8-K | 0000720500-26-000008 | Jun 1, 2026 | Jun 3, 2026 | Jun 3, 2026 20:30 UTC | EDGAR |
| 8-K | 0001193125-26-211962 | May 5, 2026 | May 7, 2026 | May 7, 2026 20:16 UTC | EDGAR |
| 10-Q | 0001193125-26-211854 | Mar 31, 2026 | May 7, 2026 | May 7, 2026 20:04 UTC | EDGAR |
| 8-K | 0001193125-26-211838 | May 7, 2026 | May 7, 2026 | May 7, 2026 20:02 UTC | EDGAR |
| 8-K | 0001193125-26-195969 | Apr 24, 2026 | Apr 30, 2026 | Apr 30, 2026 17:17 UTC | EDGAR |
Direct links to SEC EDGAR. ASYS has additional filings available on the SEC site.
6 numbers AMTECH SYSTEMS INC later changed — same XBRL tag, both filings linked.
Net Cash Provided by (Used in) Operating Activities·Q2 2018
Major restatementwas-$1.8M
Revised down in a 10-Q.
Net Cash Provided by (Used in) Operating Activities·Q3 2018
Major restatementwas-$2.6M
Revised down in a 10-Q.
Net Cash Provided by (Used in) Operating Activities·FY 2017
Major restatementwas$11.8M
Revised up in a 10-K. Any P/OCF built on the original was 65.4% too high.
Operating Income (Loss)·3 months to Sep 2018
Major restatementwas-$8.8M
Revised up in a 10-K.
Operating Income (Loss)·FY 2017
Major restatementwas$10.4M
Revised down in a 10-K.
Revenue from Contract with Customer, Including Assessed Tax·Q1 2017
Major restatementwas$73.6M
Revised down in a 10-K. Any P/S built on the original was 171.5% too low.
ASYS is not the only one.
See every restatement we've found across the market — or get an alert the next time ASYS revises a number.
Restatements are detected by comparing every vintage of a fact across all of AMTECH SYSTEMS INC's filings back to 1993. A revision is not by itself a sign of wrongdoing — companies re-file for many legitimate reasons. This list is not exhaustive: it shows ASYS's most significant revisions, and a figure absent from it has not been certified as unrevised.
Who is buying and selling AMTECH SYSTEMS INC — insider transactions from Forms 3/4/5/144 and institutional ownership from 13F, 13D, and 13G filings, point-in-time stamped like every other fact in the library. Traders read it as a positioning signal; risk desks read it as concentration.
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