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Equity · Utilities

IMSR

NASDAQ

Terrestrial Energy Inc. /DE/ (IMSR)

3.02 USD +6.34% vs prior close Nov 9, 2026
Terrestrial Energy Inc. price graph
63 sessions
8 2 12 Aug 9 Nov

The line runs 5.83 USD on 12 August through 3.02 USD on 9 November, on a scale from 2 to 8. Days the market did not trade hold the previous close, flat.

Market cap
319.9M USD
EPS, diluted, year to Dec 2025
−0.39 USD
Avg volume
105.2K
Mentions, 30 days
8
Net sentiment
+0.15

as of Nov 9, 2026

Have Terrestrial Energy Inc. /DE/ (IMSR) insiders bought or sold shares recently?

In the 90 days to 10 Nov 2026, Terrestrial Energy Inc. /DE/ insiders reported 3 open-market purchases and no sales (SEC Form 4).

Form 4, 90 days to 10 Nov 2026, newest reported trade 14 Oct 2026

3buys
0sells
$112Knet bought
2other filings
Have Terrestrial Energy Inc. /DE/ (IMSR) insiders bought or sold shares recently?
ReportedInsiderTypeSharesValue
14 Oct 2026Pardee Charles GDirectorBuy7,50022K USD
13 Oct 2026Irish SimonChief Executive OfficerBuy16,90051K USD
09 Oct 2026BUCKMAN FREDERICK WDirectorBuy12,00039K USD
Bought3 open-market purchases36,400$112K
2 other filings in the window: grants, exercises, tax withholding and transfers, not trades
Have Terrestrial Energy Inc. /DE/ (IMSR) insiders bought or sold shares recently?
ReportedInsiderTypeSharesValue
28 Oct 2026Irish SimonChief Executive OfficerOption exercise55,432
21 Oct 2026Irish SimonChief Executive OfficerOption exercise511,580

Which funds hold Terrestrial Energy Inc. /DE/ (IMSR)?

8 of the 45 institutional funds we track reported a Terrestrial Energy Inc. /DE/ position for the quarter ended 30 Jun 2026 — a combined 8.0M USD; the latest of those filings landed 02 Sep 2026.

Form 13F

Which funds hold Terrestrial Energy Inc. /DE/ (IMSR)?
FundPositionSharesValueShares q/q
D. E. Shaw & Co.Trimmed667,9684.7M USD−45.0%
Renaissance TechnologiesTrimmed183,8001.3M USD−54.9%
Millennium ManagementNew position96,035680K USD
AQR Capital ManagementNew position59,777423K USD
Balyasny Asset ManagementTrimmed56,461400K USD−72.6%
Tudor Investment CorpAdded42,225299K USD+275.2%
Marshall WaceHeld (±25%)20,278144K USD−22.8%
Citadel AdvisorsTrimmed10,06171K USD−99.2%

What has been filed or recorded for Terrestrial Energy Inc. /DE/ (IMSR)?

The filings we hold for Terrestrial Energy Inc. /DE/, newest first: 8 fails-to-deliver days, 5 quarterly earnings reports, 2 annual reports and 4 reported financial figures, the latest dated 14 Oct 2026. No next earnings date is announced in SEC filings yet.

What has been filed or recorded for Terrestrial Energy Inc. /DE/ (IMSR)?
And
14 Oct 2026Fails to deliverShares failed to deliver377 shares1K USD notional · <0.001% of shares out
13 Oct 2026Fails to deliverShares failed to deliver8,772 shares26K USD notional · 0.008% of shares out
09 Oct 2026Fails to deliverShares failed to deliver22,525 shares77K USD notional · 0.021% of shares out
06 Oct 2026Fails to deliverShares failed to deliver7,914 shares30K USD notional · 0.007% of shares out
05 Oct 2026Fails to deliverShares failed to deliver34,818 shares132K USD notional · 0.033% of shares out
02 Oct 2026Fails to deliverShares failed to deliver53,293 shares204K USD notional · 0.050% of shares out
29 Sep 2026Fails to deliverShares failed to deliver48,409 shares199K USD notional · 0.046% of shares out
28 Sep 2026Fails to deliverShares failed to deliver12,169 shares52K USD notional · 0.011% of shares out
30 Jun 2026Quarterly earningsQ2 2026 reportedEPS −0.09 USD
30 Jun 2026FinancialsTotal assets289.9M USDat period end
30 Jun 2026FinancialsTotal equity281.7M USDat period end
31 Mar 2026Quarterly earningsQ1 2026 reportedEPS −0.10 USD
31 Dec 2025Annual reportFY 2025 reportedEPS −0.39 USD
31 Dec 2025FinancialsNet income−28.0M USDfiscal year
31 Dec 2025FinancialsDiluted EPS−0.39 USDfiscal year
30 Jun 2025Quarterly earningsQ2 2026 reportedEPS −0.10 USD
31 Mar 2025Quarterly earningsQ1 2026 reportedEPS −0.10 USD
31 Dec 2024Annual reportFY 2025 reportedEPS −0.19 USDRevenue $0M
30 Jun 2024Quarterly earningsQ2 2024 reportedEPS −0.02 USD

What is Reddit saying about Terrestrial Energy Inc. /DE/ (IMSR)?

Reddit mentioned IMSR 8 times in the 30 days to 10 November 2026, in 1 of the communities we track. All of them were scored for sentiment: 88% read bullish, 13% bearish and 0% neither. Reddit data updated 10 November 2026.

30-day window, Method

8mentions, 30 days
88%bullish
12%bearish
1communities
+34pointsagainst the market

How do Reddit mentions of Terrestrial Energy Inc. /DE/ (IMSR) compare with its price?

Share ↗
8 mentions

Which subreddits are talking about Terrestrial Energy Inc. /DE/ (IMSR)?

30 days

Which subreddits are talking about Terrestrial Energy Inc. /DE/ (IMSR)?
CommunityShareMentionsNet sentiment
r/wallstreetbets100%8+0.15

What do people ask about Terrestrial Energy Inc. /DE/ (IMSR)?

From live data
What did Terrestrial Energy Inc. /DE/ shares close at?3.02

Terrestrial Energy Inc. /DE/ closed at 3.02 USD on 9 Nov 2026, up 6.34% on the close before. That is the end-of-day price from Finazon, not a live quote.

What is Terrestrial Energy Inc. /DE/’s market cap?319.9M

Terrestrial Energy Inc. /DE/ is worth 319.9M USD by market value as of 9 Nov 2026, which is the share price times the shares on issue from its SEC filings.

Have Terrestrial Energy Inc. /DE/ insiders bought or sold shares recently?3 purchases

In the 90 days to 10 Nov 2026, Terrestrial Energy Inc. /DE/ insiders reported 3 open-market purchases and no sales (SEC Form 4). A further 2 filings were grants, awards, gifts or exercises rather than open-market trades. See Insiders

Which funds own Terrestrial Energy Inc. /DE/?8 of 45

8 of the 45 funds we track reported a Terrestrial Energy Inc. /DE/ position for the quarter ended 30 Jun 2026, per their SEC Form 13F filings. The largest reported positions were D. E. Shaw & Co., Renaissance Technologies and Millennium Management. See Funds

When did Terrestrial Energy Inc. /DE/ last report earnings?−0.09

Terrestrial Energy Inc. /DE/ last reported earnings on 30 Jun 2026 for Q2 2026, with EPS of −0.09 USD; no next date is announced in SEC filings yet. See Filings

What is Reddit saying about Terrestrial Energy Inc. /DE/?1 mentions

Terrestrial Energy Inc. /DE/ was mentioned 1 times in the last 7 days across the finance subreddits we track, and 8 times over the trailing 30 days. Of the 8 mentions scored for sentiment, 88% read bullish and 13% bearish. That is a social signal, not investment advice. See Reddit

Answers are generated from the live figures on this page — Reddit crowd data, SEC filings and open company records — and update as the data does.

References
  1. Finazonprior-day close, indicative (IEX-derived, not the official close), some closes dollar-rounded at the source
  2. TradingViewthe price chart widget, drawn by TradingView from their own data
  3. RedditReddit ingest across the tracked finance subreddits
  4. SEC EDGARForm 4 filings (insider transactions)
  5. SEC EDGAR13F filings
  6. SECSEC fails-to-deliver (CNS) data
  7. SEC EDGARXBRL company facts, latest period ended 30 Jun 2026
  8. SEC EDGARreported earnings figures and scheduled report dates
  9. SEC EDGARValuation computed from SEC EDGAR filings