With the registration declared effective, Terrestrial Energy can price its IPO at any time — typically within 1-2 days. The de-SPAC structure suggests potential for near-term volatility as lock-up restrictions on legacy SPAC holders may begin to run. Monitor the S-1/A for the final prospectus with pricing terms.
Price Chart
Executive Summary
Terrestrial Energy Inc. (IMSR) received SEC effectiveness for its registration statement (File No. 333-291796) as of June 11, 2026. This EFFECT notice confirms that the company's S-1/A IPO registration is now qualified, clearing the company to proceed with pricing and listing on Nasdaq. With a $767M market cap and strong institutional bull rating (88% buy-side consensus), the effective registration is a critical milestone signaling imminent trading commencement.
Key Facts
- EFFECT dated June 11, 2026 — registration under Securities Act of 1933 is now effective
- File No. 333-291796 corresponds to the S-1/A for an IPO offering
- Company changed name from HCM II Acquisition Corp. on April 15, 2024 — this is a de-SPAC transaction going public
- Market cap is $767M with 88% analyst buy rating (2 Strong Buy, 5 Buy)
- No offering size or share count is specified in the EFFECT filing itself
Financial Impact
IPO now effective — pricing and gross proceeds amount not stated in this filing
Risk Factors
- IPO pricing may come in below expectations if market conditions deteriorate
- Post-IPO dilution and lock-up expiry overhang from the de-SPAC structure
- No revenue or operating history disclosed in this EFFECT filing — speculative valuation
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 3 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| EFFECT Filing (Primary) | 9999999995-26-001960 |
| Document: 9999999995-26-001960-index.html | 9999999995-26-001960 |
| Document: 9999999995-26-001960.txt | 9999999995-26-001960 |
Track record builds as more directional reports settle.
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 15, 2026 11d ago | Insider Cluster | $3.05 $2.85 | ▼ −6.56% | ▼ −6.98% | $2.94 (−3.61%) |
Aug 11, 2026 10w ago | 8-K | $5.67 $5.81 | ▲ +2.47% | ▲ +2.22% | $2.94 (−48.15%) |
Jun 12, 2026 19w ago | EFFECT | $7.23 $7.56 | ▲ +4.56% | ▲ +2.80% | $2.94 (−59.34%) |
Mar 30, 2026 30w ago | Press Release | $5.53 $6.01 | ▲ +8.59% | ▲ +5.70% | $2.94 (−46.84%) |
Mar 17, 2026 31w ago | Press Release | $6.58 $6.41 | ▼ −2.58% | ▼ −1.19% | $2.94 (−55.32%) |
US Market Status
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