ACLS 8-K: SEC filing
Axcelis Technologies
Filed with the SEC on · accession 0001104659-26-123080
ACLS filed a 8-K (current report) with the SEC on Nov 5, 2026. A report of a major event, filed within four business days: results, deals, leadership changes, bankruptcy and more. The stock moved -2.3% by the first close after the filing.
Summary of the filing
Axcelis Technologies filed a routine Form 8-K cover page with no substantive corporate event disclosed in the provided text.
Key details
How ACLS stock reacted
Close before
$92.14
Nov 4, 2026
First close after
-2.32%
$90.00
5 trading days
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Since filing
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Click hereFrequently asked questions
What did ACLS file with the SEC on Nov 5, 2026?
ACLS filed a 8-K (SEC filing). Axcelis Technologies filed a routine Form 8-K cover page with no substantive corporate event disclosed in the provided text.
How do I read a 8-K?
A report of a major event, filed within four business days: results, deals, leadership changes, bankruptcy and more. The "Item" number tells you the topic (e.g. 2.02 results, 5.02 executive change, 1.01 new agreement, 1.03 bankruptcy). Exhibits (99.1 press release) usually hold the details.
Why are SEC filings important?
Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A 8-K (current report): A report of a major event, filed within four business days: results, deals, leadership changes, bankruptcy and more.
How did ACLS stock react to this filing?
ACLS closed at $92.14 before the filing and $90.00 on Nov 5, 2026 (-2.32%).
Other ACLS SEC filings
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