// company-profile
Terrestrial Energy Inc. /DE/
IMSRExchangeNasdaqSectorFabricated Plate Work (Boiler Shops)Inc.DEFilings22Insiders16
// api This Terrestrial Energy Inc. /DE/ insider-trading data is served live by the Form4API insider trading API. Get the same data via API.
// activity-summary
No insider transactions in the last 30 days.
// 90-day insight
Over the last 90 days, Terrestrial Energy Inc. /DE/ insiders bought $0 across 5 transactions with no open-market sales.
- Most active insider: Thrasher Brian Patrick with 2 transactions totaling $0.
Activity skews bullish — buys outpace sales.
Institutional Ownership
Top 13F-HR holders of Terrestrial Energy Inc. /DE/ as of 2026-03-31
Total reported AUM
$118.8M
QoQ change
-18.4%
Reporting period
2026-03-31
#1
EXCHANGE TRADED CONCEPTS, LLC
CIK 1457320
$12.6M
2.1M shares
#2
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
$7.8M
1.3M shares
#3
CITADEL ADVISORS LLC
CIK 1423053
$7.7M
1.3M shares
Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Apr 12, 2026 | Millsap Steven M. | IMSR | Award | 49,917 | $0.00 | $0K |
| Apr 12, 2026 | Smith William F. | IMSR | Award | 32,787 | $0.00 | $0K |
| Apr 12, 2026 | Thrasher Brian Patrick | IMSR | Award | 49,917 | $0.00 | $0K |
| Apr 12, 2026 | Thrasher Brian Patrick | IMSR | Award | 58,236 | $0.00 | $0K |
| Apr 12, 2026 | LeBlanc David Michael | IMSR | Award | 32,787 | $0.00 | $0K |
29 more transactions hidden
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