SEC filingsOct 12, 2026 to Oct 19, 2026: insiders reported 840 purchases and sales across 212 companies.840 insider purchases and sales in 7 daysSee the filings →
HornScout

Company profile

IMSR

Terrestrial Energy Inc.
NASDAQUtilities

Latest close: 3.05 USD · Oct 16, 2026 · 1 year · split-adjusted

On the price, the facts of the public record■Insider buy□Insider sell◇Significant stake declared (13D)●Results filed
With an account, also○dividends▲splits◌next earningswith an account

End-of-day prices provided by Twelve Data · One close per session; the series does not update during the trading day.

Latest on record

The most recent facts, as filed.

Up to three of the most recent, checkable facts already loaded on this page, each linked to its source.

  1. Oct 14, 2026Reported purchase · Form 4Charles G Pardee · $22.1KOpen the filing ↗
  2. Oct 13, 2026Reported purchase · Form 4Simon Irish, Chief Executive Officer · $50.8KOpen the filing ↗
  3. Oct 9, 2026Reported purchase · Form 4FREDERICK W BUCKMAN · $39.3KOpen the filing ↗

In numbers

What this profile holds, counted.

Closes · 1 year250
SEC filings on record16424 flagged findings
Reported transactions (Form 4)38since Aug 19, 2024 · and 40 other holdings
Corporate events (8-K)16since Aug 20, 2024

What the record says

Description, identity and filings, each with its source.

Every block cites its source. The colour of a finding marks its category — which document, who filed it — not how much it matters.

Identity

Formerly traded as HOND.

SEC topics

Regulatory history

Topics detected in its SEC reports, with the original excerpt.

Each topic is assigned by a classifier over the full filing; the excerpts show where it was detected and are not always enough to verify it. Open the filing to read it in full.

  • 2026-06-12share offering or dilution eventrecentOpen filing ↗
    “…communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) ​ Securities registered pursuant to…”
  • 2026-05-14share offering or dilution eventrecentOpen filing ↗
    “…​ ​ ​ ​ ​ Purchases of intangible assets ​ — ​ (21) ​ Purchases of property and equipment ​ (53) ​ (163) ​ Purchase of…”
    +1 more passage from the same document
    • “…​ Purchases of property and equipment ​ (53) ​ (163) ​ Purchase of investments ​ (73,146) ​ — ​ Proceeds from redemptions of…”
  • 2026-05-14capital return (buybacks/dividends)recentOpen filing ↗
    “…Warrants As of March 31, 2026 and December 31, 2025, the Company had 30,276,119 outstanding warrants to purchase common stock at a…”
  • 2026-05-14reverse splitrecentOpen filing ↗
    “…data or otherwise stated) (Unaudited) Exchangeable Shares As of March 31, 2026 and December 31, 2025, the Company had 23,692,820…”
  • 2026-05-14share offering or dilution eventrecentOpen filing ↗
    “…​ ​ Purchases of intangible assets ​ — ​ ( 21 ) ​ Purchases of property and equipment ​ ( 53 ) ​ ( 163 ) ​ Purchase of investments ​…”
    +1 more passage from the same document
    • “…of property and equipment ​ ( 53 ) ​ ( 163 ) ​ Purchase of investments ​ ( 73,146 ) ​ — ​ Proceeds from redemptions of investments…”
  • 2026-05-14capital return (buybacks/dividends)recentOpen filing ↗
    “…Warrants As of March 31, 2026 and December 31, 2025, the Company had 30,276,119 outstanding warrants to purchase common stock at a…”
  • 2026-05-14share offering or dilution eventrecentOpen filing ↗
    “…communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) ​ Securities registered pursuant to…”

Original excerpts from SEC filings, untranslated. Not advice and not a prediction.

SEC record

SEC dossier

What this company has filed with the SEC, in plain language.

The 25 most recent filings (of 164)

Everything filed

Every SEC filing, newest first, with what it is. Below, each type with its own explanation.

  • Insider transaction · 3 Form 4 filings newshow all 3hide
  • Aug 14, 26424B3 ↗Securities offering
  • Aug 11, 2610-Q ↗Quarterly report
  • Aug 11, 268-K ↗Current report · Results
  • Jul 31, 268-K ↗Current report · A senior executive left or was appointed
  • Jul 31, 26Form 4 ↗Insider transaction
  • Jul 31, 26Form 3 ↗Insider transaction
  • Jul 28, 268-K ↗Current report · A senior executive left or was appointed
  • Jul 27, 26Form 4 ↗Insider transaction
  • Jul 27, 26Form 3 ↗Insider transaction
  • Jul 21, 268-K ↗Current report · Communication to the market
  • Jul 17, 268-K ↗Current report · A senior executive left or was appointed
  • Jun 12, 268-K ↗Current report · Shareholder vote results
  • Jun 5, 26POS AM ↗Securities offering
  • May 14, 26424B3 ↗Securities offering
  • May 14, 26424B3 ↗Securities offering
  • May 14, 2610-Q ↗Quarterly report
  • May 14, 268-K ↗Current report · Results
  • May 8, 268-K ↗Current report · A senior executive left or was appointed
  • Apr 29, 26DEFA14A ↗Shareholder meeting and votes
  • Apr 29, 26DEF 14A ↗Shareholder meeting and votes
  • Apr 16, 268-K ↗Current report · A senior executive left or was appointed
  • Apr 14, 26Form 4 ↗Insider transaction

164 filings on record, the oldest from May 24, 24.

Listing the 25 most recent filings of the 164 on record.

8-Ks, explained

Stress1Structure7Governance8
  • Governance5 senior executive changes2026show all 5hide
    • Jul 31, 26GovernanceA senior executive left or was appointed8-K 5.02 ↗
    • Jul 28, 26GovernanceA senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
    • Jul 17, 26GovernanceA senior executive left or was appointed8-K 5.02 ↗
    • May 8, 26GovernanceA senior executive left or was appointed8-K 5.02 ↗
    • Apr 16, 26GovernanceA senior executive left or was appointed+1 more in the same filing8-K 5.02 ↗
  • Nov 24, 25GovernanceAuditor change filing (8-K Item 4.01)+1 more in the same filing8-K 4.01 ↗
  • Nov 3, 25StructureSold unregistered shares+9 more in the same filing8-K 3.02 ↗
  • Jul 15, 25StressPast accounts declared unreliable and being restated8-K 4.02 ↗
  • Mar 26, 25StructureEntered a material agreement+4 more in the same filing8-K 1.01 ↗
  • Aug 20, 24StructureEntered a material agreement+4 more in the same filing8-K 1.01 ↗

Corporate events are tracked from 2004-08-23, when the SEC renumbered 8-K items. Earlier filings use an incompatible numbering and are not classified here.

Ownership and control

Schedule 13D: stake and stated purpose

Filed by holders above 5% of a share class who cannot use the short form. It includes the investor's stated purpose: read it before assuming they seek influence.

Schedule 13G: short-form filing

The short form, for holders who meet specific requirements: institutional investors, passive investors without a control purpose, or exempt investors. Asset managers and index funds usually file it.

  • Roberto Marco Sella14.3%Oct 29, 25SCHEDULE 13G ↗3 co-filers on this document — the figure is the largest single stake, not their sum.
  • First Trust Capital Management L.P.4.7%Jun 30, 25SCHEDULE 13G/A ↗4 co-filers on this document — the figure is the largest single stake, not their sum. · 1 earlier filing
  • Picton Mahoney Asset Management4.1%Jun 30, 25SCHEDULE 13G/A ↗
  • LMR Partners LLP4.1%Jun 30, 25SCHEDULE 13G/A ↗8 co-filers on this document — the figure is the largest single stake, not their sum.
  • Merus Global Investments, LLC3.8%Jun 30, 25SCHEDULE 13G/A ↗1 earlier filing
show 5 more holdershide
  • THE GOLDMAN SACHS GROUP, INC.3.2%Mar 31, 25SCHEDULE 13G/A ↗2 co-filers on this document — the figure is the largest single stake, not their sum.
  • Kenneth Griffin2.2%Dec 31, 25SCHEDULE 13G/A ↗7 co-filers on this document — the figure is the largest single stake, not their sum. · 1 earlier filing
  • Linden Capital L.P.0.9%Sep 30, 25SCHEDULE 13G/A ↗4 co-filers on this document — the figure is the largest single stake, not their sum.
  • MAGNETAR FINANCIAL LLC0.6%Sep 30, 25SCHEDULE 13G/A ↗4 co-filers on this document — the figure is the largest single stake, not their sum. · 1 earlier filing
  • AQR Capital Management, LLC0.0%Jun 30, 25SCHEDULE 13G/A ↗3 co-filers on this document — the figure is the largest single stake, not their sum. · 1 earlier filing

Structured 13D/G data starts 2023-12, when the SEC moved these filings to a machine-readable format. Earlier filings exist but are not parsed here.

SEC record

Insider transactions

Buys and sells reported by officers, directors and major shareholders on SEC Form 4.

Buys and sells

  • Oct 14, 26Buy$22KCharles G Pardee↗
  • Oct 13, 26Buy$51KSimon IrishChief Executive Officer↗
  • Oct 9, 26Buy$39KFREDERICK W BUCKMAN↗
Stock compensation, tax and giftsshow the 6 other transactionshide

Stock compensation, tax withholding, option exercises and gifts. They are listed separately and are not included in the purchase and sale totals. The type describes the transaction, not the filer's intent.

  • Nov 6, 25Otheramount n/aShawn Matthews↗
  • Oct 28, 25Otheramount n/aShawn Matthews↗
  • Oct 28, 25Otheramount n/aShawn Matthews↗
  • Oct 28, 25Otheramount n/aJacob Loveless↗
  • Oct 28, 25Otheramount n/aAndrew Scott Brenner↗
  • Oct 28, 25Otheramount n/aMichael J Connor↗

The full record holds 9 transactions and goes back to Aug 15, 24.

Its sector and its market

Terrestrial Energy Inc. among Utilities companies

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Coverage

What sits behind this page.

Where each figure comes from and how far it reaches.

Prices
End-of-day closes provided by Twelve Data. One close per session; not real time. Closes adjusted for splits.
Series quality
250 clean closes in the period.
SEC records
164 documents on file, from May 24, 2024 to Oct 15, 2026.
Company description
No description available.
This page
Generated on Oct 19, 2026; refreshed through the day.

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Which SEC documents appear here?

Those filed with the SEC by the company, its insiders and its major shareholders, within our coverage: periodic reports (10-K, 10-Q, 20-F), material events (8-K), proposed sale notices (Form 144), insider transactions (Form 4) and stakes above 5% (13D/13G). Each links to the original on EDGAR.

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It depends on the company: some European issuers file a 20-F or 6-K with the SEC and others don't. The profile shows whatever is on record; when there is nothing, it says so rather than guessing why. Europe does not yet have a common filing archive like EDGAR in the United States. The EU will open its own, ESAP, in July 2027 (managers' transactions arrive in January 2028), and we plan to add it once it is available.

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