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Insider Cluster (3 insiders) ·Filed Oct 15, 2026

IMSR

Terrestrial Energy Inc. /DE/
BULLISH
Impact 5/10
Horizondays Processed11d 17h ago
Insider cluster: 3 insiders, $0.1M total
Actionable Insight ▲ Bullish

The CEO joining two directors in open-market purchases within a tight window is a strong signal of insider conviction. Monitor for any upcoming corporate announcements (earnings, product milestones, or strategic updates) that may have prompted this coordinated buying.

DirectionBullish
Confidencemedium
Horizondays
Latest settled — T+5d
IMSR ▼ -8.20% at T+5d
LONG call ✗ call lost -8.20% · α vs SPY -7.77% · entry $3.05 → $2.80
Next anchor: T+20d in 16d
Entry = T+0 close
Oct 15, 2026
via day close
T+1d
-6.56%
call -6.56% · α -6.98%
$2.85
settled 11d ago
T+5d
-8.20%
call -8.20% · α -7.77%
$2.80
settled 5d ago
T+20d
Pending
in 16d
T+60d
Pending
in 3mo

Price Chart

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Executive Summary

Three insiders, including CEO Simon Irish, made open-market purchases totaling $112K over a one-week window. This cluster of insider buying, particularly the CEO's $51K purchase, signals confidence in the company's prospects despite a recent stock decline.

Key Financial Metrics

Direction
buying
Total Value
$112.3K
Insiders
3

Key Facts

  • CEO Simon Irish purchased 16,900 shares at $3.007 for $50,818 on 2026-10-13
  • Director Frederick W. Buckman purchased 12,000 shares at $3.278 for $39,336 on 2026-10-09
  • Director Charles G. Pardee purchased 7,500 shares at $2.95 for $22,125 on 2026-10-14
  • Total insider purchases: $112,279 across three insiders
  • All transactions are open-market buys (code P), not grants or tax-related

Financial Impact

Total insider purchases of $112K represent approximately 0.03% of market cap ($326M) — modest in absolute terms but significant as a cluster of open-market buys by top insiders.

insider ownershipmarket sentiment

Risk Factors

  • The dollar amounts are modest relative to market cap — these purchases alone do not change the company's fundamental outlook

Investment Themes

Industrials & Manufacturing

Documents Analyzed

This report is based on 1 SEC document filed with EDGAR.

DocumentAccession Number
CLUSTER Data (Synthetic)cluster-IMSR-1792100566423
6 reports for IMSR
Performance horizon

Track record builds as more directional reports settle.

Filters
Rows
Reports for IMSR — sortable, filterable
TypeNow
Oct 27, 2026
today
8-K
NEUTRAL ★ 3/10
$2.87awaiting T+1—$3.24 (+13.07%)
Oct 15, 2026
11d ago
Insider Cluster
BULLISH ★ 5/10
$3.05 $2.85▼ −6.56%▼ −6.98%$3.24 (+6.39%)
Aug 11, 2026
11w ago
8-K
BULLISH ★ 7/10
$5.67 $5.81▲ +2.47%▲ +2.22%$3.24 (−42.77%)
Jun 12, 2026
19w ago
EFFECT
BULLISH ★ 8/10
$7.23 $7.56▲ +4.56%▲ +2.80%$3.24 (−55.12%)
Mar 30, 2026
30w ago
Press Release
MIXED ★ 6/10
$5.53 $6.01▲ +8.59%▲ +5.70%$3.24 (−41.32%)
Mar 17, 2026
32w ago
Press Release
NEUTRAL ★ 3/10
$6.58 $6.41▼ −2.58%▼ −1.19%$3.24 (−50.68%)
Showing 6 of 6

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Report published Oct 15, 2026