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Equity · Utilities

IMSR

NASDAQ

Terrestrial Energy Inc. /DE/ (IMSR)

$2.80 −1.75% vs prior close Finazon · prior-day close, indicative (IEX-derived, not the official close) · Oct 23, 2026

Reddit mentioned IMSR 9 times in the 30 days to 26 October 2026, in 1 of the communities we track. All of them were scored for sentiment: 67% read bullish, 22% bearish and 11% neither. Reddit data updated 26 October 2026.

Price · Chart
63 sessions
$8 $2 28 Jul 23 Oct

The line runs $5 on 28 July through $2.80 on 23 October, on a scale from $2 to $8. Days the market did not trade hold the previous close, flat.

Track this symbol on TradingView TradingView chart · our licensed closes: 63 sessions, 28 Jul – 23 Oct 2026
Market cap $296.6M
Avg volume 98.1K
Mentions · 30d 9
Net sentiment −0.00

as of Oct 23, 2026

Terrestrial Energy Inc. /DE/ (IMSR) · crowd attention × price

Share ↗
Post on X Share on Reddit Share on LinkedIn
9 mentions

Day21 Oct 2026

MENTIONS20–3 / day
PRICE$3$2.5–$4.5
IMSR over the last 30 days, plotting daily Reddit mentions as bars, left-hand scale; the daily closing price as a line on its own right-hand scale, solid across consecutive trading days, held flat and diagonally hatched over days the market was closed, diagonally hatched over days we hold no close for.per day0123usd$2.5$3.0$3.5$4.0$4.527 Sep4 Oct12 Oct19 Oct26 Oct
IMSR over the last 30 days, plotting daily Reddit mentions as bars, left-hand scale; the daily closing price as a line on its own right-hand scale, solid across consecutive trading days, held flat and diagonally hatched over days the market was closed, diagonally hatched over days we hold no close for.27 Sep12 Oct26 Oct
The Distributed Sentinel 26 Oct 2026

IMSR drew 9 Reddit mentions over the 30 days to 26 October 2026

This chart in words

The chart plots daily Reddit mentions of IMSR over the 30 days to 26 October 2026: 9 in total, busiest on 5 October with 2, and 2 on the last day counted. The line is the daily close over the same window: $4.12 on 28 September, $2.80 on 23 October. Of those days, 20 were trading sessions and the other 10 are hatched on the chart. On 8 of them no session took place, and the last close before it is carried forward rather than plotted; on 1 of them no session took place, and this window holds no earlier close to carry forward; on 1 of them we hold no close at all, which is a gap in our own record rather than a closure we can prove.

Terrestrial Energy Inc. /DE/ (IMSR) on Reddit · 30d

n = 9 scored · Method

In the 30 days to 26 Oct 2026, Terrestrial Energy Inc. /DE/ drew 9 Reddit mentions in the finance subreddits we track, 9 of them scored for sentiment.

IMSR

67% bullish

Overall market sentiment

54% bullish

IMSR reads 13 points more bullish than overall market sentiment. Same measure; same 30-day window.

Where IMSR is discussed

(30d)
r/wallstreetbets 100% 9 +0.00

Moves with IMSR

co-mention r · 31 obs

Tickers whose daily Reddit volume rose and fell with IMSR's. Co-discussion, not price.

KAS.X +0.53 EA +0.51 VALE +0.50 AVIV −0.50 MAGS +0.49 TAGS +0.49

How closely daily Reddit mention counts rose and fell together over the last 30 days (31 daily observations) · Method

Terrestrial Energy Inc. /DE/ (IMSR) insider trades

SEC Form 4 · last 90 days · newest reported trade 14 Oct 2026

In the 90 days to 26 Oct 2026, Terrestrial Energy Inc. /DE/ insiders reported 3 open-market purchases and no sales (SEC Form 4).

Open-market buys 3
Open-market sells 0
Net bought $112K
Non-trade filings 0
Date Insider Type Shares Value
14 Oct 2026 Pardee Charles G Director Buy 7,500 $22K
13 Oct 2026 Irish Simon Chief Executive Officer Buy 16,900 $51K
09 Oct 2026 BUCKMAN FREDERICK W Director Buy 12,000 $39K

Terrestrial Energy Inc. /DE/ (IMSR) reported financials

SEC EDGAR XBRL SEC EDGAR

Terrestrial Energy Inc. /DE/ reported net income of −$28.0M for the fiscal year ended 31 Dec 2025.

Figure Reported Period
Net income −$28.0M 31 Dec 2025 fiscal year
Diluted EPS −$0.39 31 Dec 2025 fiscal year
Total assets $289.9M 30 Jun 2026 at period end
Total equity $281.7M 30 Jun 2026 at period end

Terrestrial Energy Inc. /DE/ (IMSR) earnings

SEC EDGAR

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

Date Period EPS Revenue
30 Jun 2026 Q2 2026 −$0.09 —
31 Mar 2026 Q1 2026 −$0.10 —
31 Dec 2025 FY 2025 −$0.39 —
30 Jun 2025 Q2 2026 −$0.10 —
31 Mar 2025 Q1 2026 −$0.10 —
31 Dec 2024 FY 2025 −$0.19 $0M
30 Jun 2024 Q2 2024 −$0.02 —

Next report no date announced in SEC filings yet

Reported figures & scheduled dates · SEC EDGAR filings

Terrestrial Energy Inc. /DE/ (IMSR) institutional holders (13F)

SEC Form 13F SEC EDGAR

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; the latest of those filings landed 02 Sep 2026.

Fund Action Shares Value
D. E. Shaw & Co. Trimmed −45.0% shares 667,968 $4.7M
Renaissance Technologies Trimmed −54.9% shares 183,800 $1.3M
Millennium Management New position 96,035 $680K
AQR Capital Management New position 59,777 $423K
Balyasny Asset Management Trimmed −72.6% shares 56,461 $400K
Tudor Investment Corp Added +275.2% shares 42,225 $299K
Marshall Wace Held (±25%) −22.8% shares 20,278 $144K
Citadel Advisors Trimmed −99.2% shares 10,061 $71K

Terrestrial Energy Inc. /DE/ (IMSR) fails-to-deliver

SEC CNS data SEC

On 29 Sep 2026, 48,409 shares of Terrestrial Energy Inc. /DE/ failed to deliver (about $199K) — the latest of 2 consecutive trading days with recorded fails.

Settlement date Shares failed Notional % of shares out
29 Sep 2026 48,409 $199K 0.046%
28 Sep 2026 12,169 $52K 0.011%
22 Sep 2026 18,076 $81K 0.017%
21 Sep 2026 304 $1K <0.001%
18 Sep 2026 40,374 $177K 0.038%
17 Sep 2026 33,910 $144K 0.032%
16 Sep 2026 39,456 $169K 0.037%
11 Sep 2026 3,232 $17K 0.003%

Terrestrial Energy Inc. /DE/ (IMSR): frequently asked questions

From live data

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

In the 90 days to 26 Oct 2026, Terrestrial Energy Inc. /DE/ insiders reported 3 open-market purchases and no sales (SEC Form 4).

How many institutions hold Terrestrial Energy Inc. /DE/?

8 of the 45 institutional funds we track reported a Terrestrial Energy Inc. /DE/ position for the quarter ended 30 Jun 2026, per SEC Form 13F filings.

Has Terrestrial Energy Inc. /DE/ had fails-to-deliver recently?

Yes. The most recent SEC fails-to-deliver record for Terrestrial Energy Inc. /DE/ is dated 29 Sep 2026, when 48,409 shares failed to deliver.

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

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

What exchange is Terrestrial Energy Inc. /DE/ listed on?

Terrestrial Energy Inc. /DE/ trades on NASDAQ under the ticker IMSR.

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

Terrestrial Energy Inc. /DE/ was mentioned 2 times in the last 7 days across the finance subreddits we track, and 9 times over the trailing 30 days. Of 9 classified mentions, 67% read bullish, 22% bearish and 11% neutral. Crowd sentiment is a social signal, not investment advice.

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.

Sources

  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 EDGARSEC EDGAR XBRL company facts · latest period ended 30 Jun 2026
  5. SEC EDGARSEC EDGAR 13F filings
  6. SECSEC fails-to-deliver (CNS) data
  7. SEC EDGARValuation computed from SEC EDGAR filings