Terrestrial Energy Inc.
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About the company
Terrestrial Energy Inc. specializes in developing sophisticated nuclear energy systems, specifically its proprietary small modular molten salt reactors, known as IMSR technology. These advanced reactors are engineered to deliver high-temperature industrial heat and generate electricity, all while maintaining a minimal carbon footprint.
- CEO
- Simon Irish
- IPO
- 2025
- Employees
- 74
- HQ
- Charlotte, NC, US
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- Market Cap
- $435.93M
- P/E
- -12.52
- PEG
- 0.00
- P/S
- 0.00
- P/B
- 1.98
- EV/EBITDA
- -6.76
- Div Yield
- 0.00%
- Gross Margin
- 0.00%
- Op Margin
- 0.00%
- Net Margin
- 0.00%
- ROE
- -18.00%
- ROIC
- -16.18%
Latest fiscal year · YoY change
- Revenue
- $0-100.0%
- Gross Profit
- $0-100.0%
- Op Income
- $-25,196,475
- Net Income
- $-28,016,641-143.9%
- EPS
- $-0.39-200.0%
- OCF Growth
- -100.8%
- FCF Growth
- -98.7%
- 52W High
- $31.50
- 52W Low
- $4.38
- 50D MA
- $6.06
- 200D MA
- $7.79
- Beta
- 2.39
- Avg Volume
- 2.36M
Earnings call summaries
Pick a quarter — each call distilled into takeaways, results, and a bull vs bear read.
Terrestrial Energy said Q2 progress was on track, while updating its reactor and fuel-business economics to show a larger lifetime revenue opportunity and higher margins.· August 11, 2026
- NRC approved the PII methodology topical report, adding to last year’s principal design criteria approval and strengthening the IMSR licensing basis.
- Management updated lifetime revenue per plant to $2.7 billion from $2.1 billion and blended gross profit margin to 33% from 22%.
- Estimated serviceable addressable market rose to $2.3 trillion by 2050 from $1.9 trillion.
- Cash, cash equivalents, and short- and long-term investments ended Q2 at $283.4 million; quarterly cash burn was $6.4 million.
- Texas A&M RELLIS site work and the Riot Platforms data-center partnership remained key commercial priorities, with a target of 4 gigawatts for Riot-related development.
Terrestrial Energy did not report revenue or EPS in this call. It ended the quarter with $283.4 million of cash, cash equivalents, and short- and long-term investments, versus $289.9 million at the end of Q1. Cash burn was $6.4 million for the quarter, or about $2.2 million per month, down from $7.9 million in Q1. R&D expense fell by about $1.1 million sequentially, while G&A rose by about $700,000, mainly due to $500,000 more stock-based compensation. Management said the full-year spend profile should rise in the second half of 2026 as testing, site work, and organizational scaling continue, but gave no revenue or EPS guidance.
Simon Irish emphasized that the company’s mission remains solving nuclear affordability and capital efficiency through the IMSR design. He framed the quarter as progress across three execution pillars: engineering/regulatory, supply chain, and commercial pipeline, highlighting NRC approval, DOE-backed projects TETRA and TEFLA, and the Texas A&M RELLIS site lease. He was upbeat about the secular demand for SMRs and said the company is positioning itself as the most capital-efficient plant in the sector.
Brian Thrasher said the quarter reflected disciplined spending and a clean balance sheet. Cash, cash equivalents, and investments were $283.4 million at quarter end, with $6.4 million of quarterly burn versus $7.9 million in Q1; he attributed the lower burn mainly to timing shifts in testing and said spending will increase in the second half as site analysis and other programs ramp. R&D declined about $1.1 million sequentially due to timing/scope changes, while G&A rose about $700,000, largely from $500,000 of stock-based compensation tied to headcount growth. He also noted no debt and only modest current liabilities and lease obligations.
Analysts focused on what changed in the updated unit economics, milestones for DOE projects, natural-gas bridge-fuel timing, fuel qualification, Riot site selection, and project financing. Management said the economics update was an iteration driven by engineering work over the last 18 months, especially TEFLA, and that the business model itself had not changed. On guidance, Simon said at least two more topical reports are expected this year, fuel qualification for a liquid-fuel reactor is more about demonstrating salt properties and heat-transport data than traditional solid-fuel qualification, and Riot-related work is still in preliminary site characterization with no site or timeline disclosed.
The call presented a stronger long-term economics case: higher lifetime revenue per unit, higher gross margin, and a larger addressable market, all tied to specific engineering work rather than a change in business model. Management also pointed to concrete regulatory progress, DOE-supported projects, and commercial traction with Texas A&M and Riot Platforms, which they said could support 4 gigawatts of development. The company reiterated it is capital-light and not trying to build or operate plants itself.
Management acknowledged that much of the commercial opportunity is still early-stage: site selection for Riot is unresolved, timelines were not disclosed, and further topical reports and fuel-qualification work are still ahead. Cash burn is expected to rise through 2026 as testing, site work, and staffing expand, and the financing model for first plants remains dependent on strategic capital formation and policy support rather than classic project finance. The company also said the bridge-fuel phase would use standard industrial equipment and natural gas, underscoring that full nuclear operation is still years away.
AI summary of the company's earnings call · Paraphrased · Not investment advice
of shares held by institutions
101 13F filers
Top institutional holders
Largest 13F positions, with quarter-over-quarter change.
| Holder | Shares | Δ Quarter |
|---|---|---|
| Vanguard Group Inc | 1.85M | ▲ 1.85M |
| California State Teachers Retirement System | 31.28K | ▲ 31.28K |
| Anchor Investment Management, LLC | 2.10K | 0 |
| Cherry Tree Wealth Management, LLC | 692 | 0 |
| Tucker Asset Management LLC | 371 | ▲ 371 |
Held by 78 ETFs
Biggest fund positions in IMSR by dollar value.
Recent insider transactions
Who's buying, who's selling, and how much.
| Date | Insider | Type | Shares |
|---|---|---|---|
| Jul 29, 26 | Cowan Pamela Beth | other | 299,401 |
| Jul 29, 26 | Cowan Pamela Beth | other | 0 |
| Jul 23, 26 | McCarthy Kathryn Ann | other | 2,049 |
| Jul 23, 26 | McCarthy Kathryn Ann | other | 0 |
| Apr 12, 26 | Millsap Steven M. | other | 49,917 |
| Apr 12, 26 | Thrasher Brian Patrick | other | 58,236 |
| Apr 12, 26 | Thrasher Brian Patrick | other | 49,917 |
| Apr 12, 26 | Smith William F. | other | 32,787 |
| Apr 12, 26 | LeBlanc David Michael | other | 32,787 |
| Oct 29, 25 | Sella Roberto Marco | other | 0 |
A “Sell” may be a pre-scheduled 10b5-1 plan sale rather than a discretionary decision — read insider selling with that in mind.
Our IMSR coverage
Recent articles, reports, and earnings notes.
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Generate IMSR report →Terrestrial Energy Inc. (IMSR) Q2 2026 Earnings Call Transcript
seekingalpha.com · Aug 11
Terrestrial Energy Q2 Earnings Call Highlights
marketbeat.com · Aug 11
Terrestrial Energy Reports Second Quarter 2026 Results
gurufocus.com · Aug 11
Terrestrial Energy Reports Second Quarter 2026 Results
businesswire.com · Aug 11
Unlocking $50 Billion Across the Nuclear Value Chain
etftrends.com · Aug 10
Terrestrial Energy Appoints Senior Industry Executive Pamela Cowan as EVP of Engineering
gurufocus.com · Jul 30
Terrestrial Energy Appoints Senior Industry Executive Pamela Cowan as EVP of Engineering
businesswire.com · Jul 30
Terrestrial Energy Board Adds Industry Veteran Kathryn McCarthy; Announces Second Quarter 2026 Earnings Release and Conference Call Date
businesswire.com · Jul 28
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