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Terrestrial Energy Inc. /DE/ Stock: price and insider trades · United States
US·Mcap US$334.2M
3 insiders bought €100k of shares over the last 90 days, the latest filed 15 Oct 2026.
Cluster: 3 buyers in 30 daysTerrestrial Energy Inc. /DE/: what insiders have been doing
Terrestrial Energy Inc. /DE/ is a listed company. Its directors and officers file their transactions with SEC (Form 4). 7 insiders have disclosed 8 filings since 18 October 2025.
Every open-market trade in the period is a purchase: 3 purchases worth €100k, from 3 insiders, and not a single sale. Open-market purchases are the filings investors watch most closely, because the insider pays for the shares out of pocket. Irish Simon filed the largest purchase, €45k, on 14 October 2026, which represents 0.015% of the company's market value. Those buying include 2 senior executives and 1 chief executive.
Compared with its exchange (5,812 companies, median 19 filings), a count of 8 filings is below the norm. The full history, which starts in 2025, counts 3 purchases against no sales.
In all, 2 purchases were made within 30 days of a purchase by another insider of the company. A cluster is several different insiders buying the same stock within a short window, a pattern studied more closely than a single purchase. The latest purchase is recent: it was published 3 days ago, on 15 October 2026. The median gap between a trade and its publication by SEC (Form 4) is 2 days. US insiders must file a Form 4 within two business days of a trade.
For comparison within the same market, see the insider buying recorded at GameStop Corp. and Heico Corp. This summary is built from SEC (Form 4) disclosures alone and does not predict where the share price will go.
Insider Decl.
8
Thresholds
n/a
Buy Volume
€100,270
3 ops. · all time
Sell Volume
n/a
n/a
Who traded when
BuySaleCharles G. Pardee1 buy
Frederick W. Buckman1 buy
Simon Irish1 buy
This score ranks the purchase within its own market. A position size is suggested only on the venues of the backtested strategy universe; elsewhere, signals stay on watch. Not investment advice.
Financial data
as of FY 2025FY ended December 2025 · cache
US$3.16
Analyst consensus
3 analystsUS$8.00Target US$11.67(+270%)US$15.00
Income statement
EBITDA-US$22.5M
Net income-US$28M0.0% margin
Valuation
PER (forward)-3.9x
P/Book1.2x
Beta2.52
Balance sheet & cash
Market capUS$334.2M
Total debtUS$2.1M
Free Cash Flow-US$17.6M
Debt / Equity1%
Profitability & ownership
ROE-27.4%
ROA-14.9%
% insiders18.6%
% institutions26.8%
Last declaration on 15 October 2026
Declarations8 total
7,500 shares@ US$2.95Common StockSEC:0001193125-26-423068:0
Canonical exit: 12 Jan 2027 (T+90)
16,900 shares@ US$3.0070.015% mcap100.0% of flowCommon StockSEC:0001193125-26-421089:0
Canonical exit: 11 Jan 2027 (T+90)
12,000 shares@ US$3.278100.0% of flowCommon StockSEC:0001193125-26-420002:0
Canonical exit: 7 Jan 2027 (T+90)
2,920,000 sharesCommon Stock, par value $0.0001 per shareSEC:0001213900-25-110214:0
25,000 sharesCommon Stock, par value $0.0001 per shareSEC:0001213900-25-104334:0
25,000 sharesCommon Stock, par value $0.0001 per shareSEC:0001213900-25-104333:0
25,000 sharesCommon Stock, par value $0.0001 per shareSEC:0001213900-25-104332:0
5,675,000 sharesCommon Stock, par value $0.0001 per shareSEC:0001213900-25-104331:0
8 of 8 declarations
About Terrestrial Energy Inc. /DE/
Terrestrial Energy Inc. is a company focused on the development of molten salt nuclear reactors. It is listed on NASDAQ under the ticker XNAS.
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