Companies: 10,795·Total market cap: $144.5T
Terrestrial Energy Inc.

Terrestrial Energy Inc.

IMSRNASDAQEnergy● Active
$7.51
$-0.04(-0.50%)
Market Cap$621406691
P/E Ratio—
52W High$31.5
52W Low$5.33
SEC Filings

Terrestrial Energy Inc. (IMSR) SEC Filings & 10-K Annual Reports

SEC EDGAR regulatory submissions (10-K, 10-Q, 8-K), latest forms, and full filing history — quick links to financials and earnings below.

SEC EDGAR · data.sec.gov · CIK 0002019804 · IMSR · NASDAQ · as of Jun 8, 2026

Filing snapshot

162
Total Filings
POS AM
Latest Form
2026-06-05
Most Recent
2025
Filing Since
FinancialsEarningsView All on EDGAR

Source: SEC EDGAR (data.sec.gov) · CIK 0002019804 · Updated hourly · Not investment advice

Latest Annual Report

10-K · Annual ReportFY
Filed Date
2026-03-30
Fiscal Year End
Mar 30, 2026
Accession No.
0001104659-26-036846
Primary Document
tmb-20251231x10k.htm
View on SEC EDGARDownload PDFFiling Index
Source: data.sec.gov · CIK 0002019804 · Accession 0001104659-26-036846

Latest Key Filings

10-QQuarterly Report
10-Q
2026-05-14
View 10-Q on SEC
8-KCurrent Report
8-K
2026-05-14Material Event
View 8-K on SEC
Form 4Insider Activity
Ownership Change Disclosures

Executive & director trade disclosures. Full buy/sell sentiment analysis on the dedicated tab.

View Insider Trades Tab

SEC Filing History

Hide Form 4 / 144
POS AMPOS AM
POS AM
2026-06-05
View
S-8Employee Stock Plan Registration
S-8
2026-05-19
View
424B3424B3
424B3
2026-05-14
View
424B3424B3
424B3
2026-05-14
View
10-QQuarterly Report
10-Q
2026-05-14
View
8-KCurrent Report
8-K
2026-05-14
View
8-KCurrent Report
8-K
2026-05-08
View
ARSARS
ARS
2026-04-29
View
DEFA14AProxy Statement (Additional)
DEFA14A
2026-04-29
View
DEF 14AProxy Statement
DEF 14A
2026-04-29
View
8-KCurrent Report
8-K
2026-04-16
View
DD
D
2026-03-31
View
424B3424B3
424B3
2026-03-30
View
424B3424B3
424B3
2026-03-30
View
POS EXPOS EX
POS EX
2026-03-30
View
Showing 1–15 of 140 filingsForm 4 / 144 hidden· 162 total in EDGAR

About SEC Filings & 10-K Annual Reports

Data source: SEC EDGAR (data.sec.gov)  |  Updated: Hourly  |  CIK: 0002019804  |  Exchange: NASDAQ · Energy

Terrestrial Energy Inc. (NASDAQ: IMSR) has submitted 162 documents to the U.S. Securities and Exchange Commission (SEC) since its IPO in 2025. As a Energy sector company with CIK 0002019804, all filings are publicly accessible via the EDGAR database at no cost.

The annual 10-K report is Terrestrial Energy Inc.'s most comprehensive regulatory disclosure. The most recent Terrestrial Energy Inc. 10-K was filed on 2026-03-30 for fiscal year ending 2026. Historical IMSR 10-K annual reports are available from 2024 through 2026.

Investors researching Terrestrial Energy Inc. SEC filings can access 10-K annual reports, quarterly 10-Q reports, material event 8-K filings, and proxy statements directly from the links above. All documents are sourced from the official SEC EDGAR system.

Source: SEC EDGAR · data.sec.gov · SEC Form 10-K · SEC Form 10-Q · SEC Form 8-K2026-06-08
Related Companies SEC Filings — Energy
INVX SEC Filings →SHLS SEC Filings →FLNG SEC Filings →WKC SEC Filings →KRP SEC Filings →NRP SEC Filings →ARRY SEC Filings →CSIQ SEC Filings →
→ IMSR Financials→ IMSR Earnings→ IMSR Insider Trades

Frequently Asked Questions

IMSR SEC Filings · 8 questions

Terrestrial Energy Inc. (IMSR) SEC filings are publicly available on this page and on the official SEC EDGAR database at sec.gov. You can browse all 162 filings and access original documents at no cost. Terrestrial Energy Inc.'s CIK is 0002019804.

IMSR SEC filingsTerrestrial Energy Inc. SEC documentsfind IMSR 10-K