Equity · Utilities
IMSR
NASDAQTerrestrial Energy Inc. /DE/ (IMSR)
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
| Reported | Insider | Type | Shares | Value |
|---|---|---|---|---|
| 14 Oct 2026 | Pardee Charles GDirector | Buy | 7,500 | 22K USD |
| 13 Oct 2026 | Irish SimonChief Executive Officer | Buy | 16,900 | 51K USD |
| 09 Oct 2026 | BUCKMAN FREDERICK WDirector | Buy | 12,000 | 39K USD |
| Bought | 3 open-market purchases | 36,400 | $112K |
2 other filings in the window: grants, exercises, tax withholding and transfers, not trades
| Reported | Insider | Type | Shares | Value |
|---|---|---|---|---|
| 28 Oct 2026 | Irish SimonChief Executive Officer | Option exercise | 55,432 | |
| 21 Oct 2026 | Irish SimonChief Executive Officer | Option exercise | 511,580 |
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.
| Fund | Position | Shares | Value | Shares q/q |
|---|---|---|---|---|
| D. E. Shaw & Co. | Trimmed | 667,968 | 4.7M USD | −45.0% |
| Renaissance Technologies | Trimmed | 183,800 | 1.3M USD | −54.9% |
| Millennium Management | New position | 96,035 | 680K USD | |
| AQR Capital Management | New position | 59,777 | 423K USD | |
| Balyasny Asset Management | Trimmed | 56,461 | 400K USD | −72.6% |
| Tudor Investment Corp | Added | 42,225 | 299K USD | +275.2% |
| Marshall Wace | Held (±25%) | 20,278 | 144K USD | −22.8% |
| Citadel Advisors | Trimmed | 10,061 | 71K 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.
| And | ||||
|---|---|---|---|---|
| 14 Oct 2026 | Fails to deliver | Shares failed to deliver | 377 shares | 1K USD notional · <0.001% of shares out |
| 13 Oct 2026 | Fails to deliver | Shares failed to deliver | 8,772 shares | 26K USD notional · 0.008% of shares out |
| 09 Oct 2026 | Fails to deliver | Shares failed to deliver | 22,525 shares | 77K USD notional · 0.021% of shares out |
| 06 Oct 2026 | Fails to deliver | Shares failed to deliver | 7,914 shares | 30K USD notional · 0.007% of shares out |
| 05 Oct 2026 | Fails to deliver | Shares failed to deliver | 34,818 shares | 132K USD notional · 0.033% of shares out |
| 02 Oct 2026 | Fails to deliver | Shares failed to deliver | 53,293 shares | 204K USD notional · 0.050% of shares out |
| 29 Sep 2026 | Fails to deliver | Shares failed to deliver | 48,409 shares | 199K USD notional · 0.046% of shares out |
| 28 Sep 2026 | Fails to deliver | Shares failed to deliver | 12,169 shares | 52K USD notional · 0.011% of shares out |
| 30 Jun 2026 | Quarterly earnings | Q2 2026 reported | EPS −0.09 USD | |
| 30 Jun 2026 | Financials | Total assets | 289.9M USD | at period end |
| 30 Jun 2026 | Financials | Total equity | 281.7M USD | at period end |
| 31 Mar 2026 | Quarterly earnings | Q1 2026 reported | EPS −0.10 USD | |
| 31 Dec 2025 | Annual report | FY 2025 reported | EPS −0.39 USD | |
| 31 Dec 2025 | Financials | Net income | −28.0M USD | fiscal year |
| 31 Dec 2025 | Financials | Diluted EPS | −0.39 USD | fiscal year |
| 30 Jun 2025 | Quarterly earnings | Q2 2026 reported | EPS −0.10 USD | |
| 31 Mar 2025 | Quarterly earnings | Q1 2026 reported | EPS −0.10 USD | |
| 31 Dec 2024 | Annual report | FY 2025 reported | EPS −0.19 USD | Revenue $0M |
| 30 Jun 2024 | Quarterly earnings | Q2 2024 reported | EPS −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
How do Reddit mentions of Terrestrial Energy Inc. /DE/ (IMSR) compare with its price?
Share ↗
Which subreddits are talking about Terrestrial Energy Inc. /DE/ (IMSR)?
30 days
| Community | Share | Mentions | Net sentiment |
|---|---|---|---|
| r/wallstreetbets | 100% | 8 | +0.15 |
What do people ask about Terrestrial Energy Inc. /DE/ (IMSR)?
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
- Finazonprior-day close, indicative (IEX-derived, not the official close), some closes dollar-rounded at the source
- TradingViewthe price chart widget, drawn by TradingView from their own data
- RedditReddit ingest across the tracked finance subreddits
- SEC EDGARForm 4 filings (insider transactions)
- SEC EDGAR13F filings
- SECSEC fails-to-deliver (CNS) data
- SEC EDGARXBRL company facts, latest period ended 30 Jun 2026
- SEC EDGARreported earnings figures and scheduled report dates
- SEC EDGARValuation computed from SEC EDGAR filings