ASPN 8-K: SEC filing
Aspen Aerogels
Filed with the SEC on · accession 0001171843-26-007142
ASPN filed a 8-K (current report) with the SEC on Nov 5, 2026. Aspen Aerogels reported Q3 2026 revenue of $85.2 million, up 71% quarter-over-quarter and above the high end of its outlook, with Adjusted EBITDA of $19.8 million. The stock moved +7.5% by the first close after the filing.
Summary of the filing
Aspen Aerogels reported Q3 2026 revenue of $85.2 million, up 71% quarter-over-quarter and above the high end of its outlook, with Adjusted EBITDA of $19.8 million. The company also issued Q4 2026 guidance for revenue of $60-75 million and Adjusted EBITDA of $5-13 million, and highlighted new data center and BESS commercial milestones.
Key details
How ASPN stock reacted
Close before
$4.80
Nov 4, 2026
First close after
+7.50%
$5.16
5 trading days
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Since filing
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Click hereFrequently asked questions
What did ASPN file with the SEC on Nov 5, 2026?
ASPN filed a 8-K (SEC filing). Aspen Aerogels reported Q3 2026 revenue of $85.2 million, up 71% quarter-over-quarter and above the high end of its outlook, with Adjusted EBITDA of $19.8 million. The company also issued Q4 2026 guidance for revenue of $60-75 million and Adjusted EBITDA of $5-13 million, and highlighted new data center and BESS commercial milestones.
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 ASPN stock react to this filing?
ASPN closed at $4.80 before the filing and $5.16 on Nov 5, 2026 (+7.50%).
Other ASPN SEC filings
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