TGEN EFFECT: SEC filing
Tecogen Inc.
Filed with the SEC on · accession 9999999995-26-002885
TGEN filed a EFFECT (effect) with the SEC on Sep 3, 2026. A report the company filed with the SEC (the US market regulator). The stock moved +3.4% by the first close after the filing.
Summary of the filing
Tecogen Inc. filed an EFFECT notice with the SEC, indicating that a previously filed registration statement has become effective.
Key details
How TGEN stock reacted
Close before
$2.95
Sep 2, 2026
First close after
+3.39%
$3.05
5 trading days
+2.71%
$3.03
Since filing
-25.08%
$2.21
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Click hereFrequently asked questions
What did TGEN file with the SEC on Sep 3, 2026?
TGEN filed a EFFECT (SEC filing). Tecogen Inc. filed an EFFECT notice with the SEC, indicating that a previously filed registration statement has become effective.
How do I read a EFFECT?
A report the company filed with the SEC (the US market regulator). Start with the summary, then the key amounts and names. Compare it with the company’s earlier filings.
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 EFFECT (effect): A report the company filed with the SEC (the US market regulator).
How did TGEN stock react to this filing?
TGEN closed at $2.95 before the filing and $3.05 on Sep 3, 2026 (+3.39%). Five trading days later: $3.03 (+2.71%).
Other TGEN SEC filings
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