IMSR EFFECT: Shelf registration
Filed with the SEC on · accession 9999999995-26-003481
IMSR filed a EFFECT (effect) with the SEC on Nov 9, 2026. A report the company filed with the SEC (the US market regulator). The stock moved +5.6% by the first close after the filing.
Summary of the filing
The SEC declared effective Terrestrial Energy Inc.'s post-effective amendment to its registration statement (File No. 333-291796), allowing the company to proceed with its registered securities offering.
Key details
How IMSR stock reacted
Close before
$2.84
Nov 6, 2026
First close after
+5.63%
$3.00
5 trading days
—
Since filing
-4.05%
$2.73
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Click hereFrequently asked questions
What did IMSR file with the SEC on Nov 9, 2026?
IMSR filed a EFFECT (Shelf registration). The SEC declared effective Terrestrial Energy Inc.'s post-effective amendment to its registration statement (File No. 333-291796), allowing the company to proceed with its registered securities offering.
What does a shelf registration mean for IMSR stock?
New shares dilute existing holders and are often sold at a discount to the market price.
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 IMSR stock react to this filing?
IMSR closed at $2.84 before the filing and $3.00 on Nov 9, 2026 (+5.63%).
Other IMSR SEC filings
- 8-K · SEC filingNov 10, 2026
- 10-Q · SEC filingNov 10, 2026
- S-3 · Shelf registrationNov 3, 2026
- S-3 · Shelf registrationNov 3, 2026
- 8-K · SEC filingOct 27, 2026
- 424B3 · Secondary offeringAug 14, 2026
- 10-Q · SEC filingAug 11, 2026
- 8-K · SEC filingAug 11, 2026
- 8-K · SEC filingJul 31, 2026
- 8-K · SEC filingJul 28, 2026
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