# Terrestrial Energy Inc.: overview

IMSR · Nasdaq · CIK 2019804 · [Industrials](/sectors/industrials.md) · fiscal year ends Dec 31

Pages: [Overview](/companies/imsr.md) · [Financials](/companies/imsr/financials.md) · [Filings](/companies/imsr/filings.md) · [Insiders](/companies/imsr/insiders.md)

Revenue is not reported in this company’s XBRL financial statements.

## Last eight quarters

| Line item | Unit | Q3 FY2024 (2024-09-30) | Q3 FY2024 (2024-12-31) | Q1 FY2025 (2025-03-31) | Q2 FY2025 (2025-06-30) | Q3 FY2025 (2025-09-30) | Q4 FY2025 (2025-12-31) | Q1 FY2026 (2026-03-31) | Q2 FY2026 (2026-06-30) |
| --- | --- | ---: | ---: | ---: | ---: | ---: | ---: | ---: | ---: |
| Revenue | $k | not reported | not reported | not reported | not reported | not reported | not reported | not reported | not reported |
| Gross margin | % | not reported | not reported | not reported | not reported | not reported | not reported | not reported | not reported |
| Operating margin | % | not reported | not reported | not reported | not reported | not reported | not reported | not reported | not reported |
| Net margin | % | not reported | not reported | not reported | not reported | not reported | not reported | not reported | not reported |
| Diluted EPS | $ per share | not reported | not reported | [(0.10)](/filings/0001104659-26-061234.md) | [(0.10)](/filings/0001104659-26-094085.md) | not reported | not reported | [(0.10)](/filings/0001104659-26-061234.md) | [(0.09)](/filings/0001104659-26-094085.md) |
| Free cash flow | $k | not reported | not reported | [(2,923)](/filings/0001104659-26-061234.md) | [(4,488) d](/filings/0001104659-26-094085.md) | not reported | not reported | [(9,146)](/filings/0001104659-26-061234.md) | [(5,809) d](/filings/0001104659-26-094085.md) |

- Revenue. XBRL not reported.
- Gross margin (gross profit / revenue). XBRL not reported.
- Operating margin (operating income / revenue). XBRL Operating income: us-gaap:OperatingIncomeLoss. Derived values: 9-month figure less the 6-month figure; 12-month figure less the 9-month figure.
- Net margin (net income / revenue). XBRL Net income: us-gaap:NetIncomeLoss. Derived values: 9-month figure less the 6-month figure; 12-month figure less the 9-month figure.
- Diluted EPS. XBRL Diluted EPS: us-gaap:EarningsPerShareDiluted.
- Free cash flow (operating cash flow − capital expenditure). XBRL Operating cash flow: us-gaap:NetCashProvidedByUsedInOperatingActivities; Capital expenditure: us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. Derived values: 9-month figure less the 6-month figure; 6-month figure less the 3-month figure; 12-month figure less the 9-month figure.

## Last five fiscal years

| Line item | Unit | FY2024 (2024-12-31) | FY2025 (2025-12-31) |
| --- | --- | ---: | ---: |
| Revenue | $m | [0.2](/filings/0001104659-26-036846.md) | not reported |
| Gross margin | % | not reported | not reported |
| Operating margin | % | [(4168.8%)](/filings/0001104659-26-036846.md) | not reported |
| Net margin | % | [(4624.6%)](/filings/0001104659-26-036846.md) | not reported |
| Diluted EPS | $ per share | [(0.19)](/filings/0001104659-26-036846.md) | [(0.39)](/filings/0001104659-26-036846.md) |
| Free cash flow | $m | [(8.8)](/filings/0001104659-26-036846.md) | [(17.5)](/filings/0001104659-26-036846.md) |

- Revenue. XBRL Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax.
- Gross margin (gross profit / revenue). XBRL Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax.
- Operating margin (operating income / revenue). XBRL Operating income: us-gaap:OperatingIncomeLoss; Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax.
- Net margin (net income / revenue). XBRL Net income: us-gaap:NetIncomeLoss; Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax.
- Diluted EPS. XBRL Diluted EPS: us-gaap:EarningsPerShareDiluted.
- Free cash flow (operating cash flow − capital expenditure). XBRL Operating cash flow: us-gaap:NetCashProvidedByUsedInOperatingActivities; Capital expenditure: us-gaap:PaymentsToAcquirePropertyPlantAndEquipment.

Each value links to the filing it came from. d marks a derived value. A ratio is not reported when any input is missing.

## Insider purchases and sales

The last 20 open-market transactions on Form 4 (codes P and S). Reported price is as stated on the form, not a market price. [All insider transactions](/companies/imsr/insiders.md)

None in coverage.

## Funds that report holding it

From each manager’s latest Form 13F, largest reported value first. Reported value is as filed: filing data, not a price. [All funds](/funds.md)

| Fund | Quarter ended | Reported value | Shares | Put or call | Change on the quarter before |
| --- | --- | ---: | ---: | --- | --- |
| [VANGUARD CAPITAL MANAGEMENT LLC](/funds/2100119.md) | 2026-06-30 | $24.2m | 3,414,196 |  | Added +2,110,744 |
| [EXCHANGE TRADED CONCEPTS, LLC](/funds/1457320.md) | 2026-06-30 | $15.3m | 2,160,074 |  | Added +68,913 |
| [UBS Group AG](/funds/1610520.md) | 2026-06-30 | $12.5m | 1,772,173 |  | Added +1,278,596 |
| [LMR Partners LLP](/funds/1578621.md) | 2026-06-30 | $11.0m | 3,246,410 |  | Reduced −101,100 |
| [BlackRock, Inc.](/funds/2012383.md) | 2026-06-30 | $7.6m | 1,074,524 |  | Reduced −46,361 |
| [JPMORGAN CHASE & CO](/funds/19617.md) | 2026-06-30 | $6.8m | 966,797 |  | Reduced −106,276 |
| [GEODE CAPITAL MANAGEMENT, LLC](/funds/1214717.md) | 2026-06-30 | $4.9m | 693,934 |  | Added +34,546 |
| [LMR Partners LLP](/funds/1578621.md) | 2026-06-30 | $4.9m | 690,702 |  | Unchanged |
| [SUSQUEHANNA INTERNATIONAL GROUP, LLP](/funds/1446194.md) | 2026-06-30 | $4.8m | 673,400 | Put | Added +125,400 |
| [D. E. Shaw & Co., Inc.](/funds/1009207.md) | 2026-06-30 | $4.7m | 667,968 |  | Reduced −546,809 |

## Recent filings

[All 178 filings](/companies/imsr/filings.md)

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-10-27 | 07:49 ET | [8-K](/filings/0002019804-26-000030.md) | 8.01 Other events | 0002019804-26-000030 |
| 2026-08-11 | 16:30 ET | [10-Q](/filings/0001104659-26-094085.md) | Quarterly report, period 2026-06-30 | 0001104659-26-094085 |
| 2026-08-11 | 08:00 ET | [8-K](/filings/0001104659-26-093776.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-26-093776 |
| 2026-07-31 | 16:06 ET | [8-K](/filings/0002019804-26-000021.md) | 5.02 Departure or appointment of officers or directors | 0002019804-26-000021 |
| 2026-07-28 | 16:35 ET | [8-K](/filings/0002019804-26-000018.md) | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0002019804-26-000018 |
| 2026-07-21 | 09:15 ET | [8-K](/filings/0002019804-26-000013.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0002019804-26-000013 |
| 2026-07-17 | 16:28 ET | [8-K](/filings/0002019804-26-000006.md) | 5.02 Departure or appointment of officers or directors | 0002019804-26-000006 |
| 2026-06-12 | 16:15 ET | [8-K](/filings/0001104659-26-073471.md) | 5.07 Shareholder vote results | 0001104659-26-073471 |
| 2026-05-14 | 16:30 ET | [10-Q](/filings/0001104659-26-061234.md) | Quarterly report, period 2026-03-31 | 0001104659-26-061234 |
| 2026-05-14 | 07:45 ET | [8-K](/filings/0001104659-26-060716.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-26-060716 |

## Latest annual report

[Form 10-K for the fiscal year ended Dec 31, 2025](/filings/0001104659-26-036846.md), filed Mar 30, 2026.

## Forecast league

Not in this season’s league. [This season’s league](/leagues.md)

## About the filer

- CIK: 2019804
- Tickers: IMSR, IMSRW
- Exchange: Nasdaq
- SIC code: 3443 Fabricated Plate Work (Boiler Shops)
- State of incorporation: DE
- Filer category: <br>Emerging growth company

Source: SEC EDGAR, XBRL company facts, the filing index and Forms 4. Last ingested by Listed: Oct 30, 2026, 09:18 ET. No prices; not investment advice.
