Terrestrial Energy Inc. /DE/

Holding change · SEC EDGAR

This page reproduces a recorded source event. It is not a live quote, forecast, recommendation or legal conclusion.

Event type

insider.holding_change

Occurred

2026-07-29

Reported

2026-07-31

Disclosure lag

2 days

Context

links are based on the recorded entity type

Field	Recorded value
Entity	Terrestrial Energy Inc. /DE/
Source	SEC EDGAR ↗
News section	companies
Source identifier	0001193125-26-328808
Source-linked related entities	cowan-pamela-beth-2147170 · person
Event ID	#201451

Related recorded events

same canonical or source-linked entity relations

Reported	Type	Event	Source
2026-08-11	New filing	Event #642100	SEC EDGAR
2026-07-31	New filing	Event #201975	SEC EDGAR
2026-07-28	New filing	Event #109326	SEC EDGAR
2026-07-21	New filing	Event #20648	SEC EDGAR
2026-07-17	New filing	Event #21313	SEC EDGAR

Recorded payload

JSON payload as stored after parsing

{
  "accession": "0001193125-26-328808",
  "acquired_disposed": "A",
  "code": "A",
  "direct_or_indirect": "D",
  "form": "4",
  "is_derivative": true,
  "issuer_name": "Terrestrial Energy Inc. /DE/",
  "label": "Grant or award",
  "person_name": "Cowan Pamela Beth",
  "price": 0,
  "role": "EVP, Engineering",
  "security": "Stock Option (Right to Buy)",
  "shares": 299401,
  "shares_owned_after": 299401,
  "source_path": "edgar/data/2147170/0001193125-26-328808.txt",
  "ticker": "IMSR",
  "value": null
}

Evidence-based analysis

facts, provenance and explicit model coverage

Descriptive evidence from the stored source record; it is not advice, a forecast or a legal conclusion.

Dimension	Status / value	Method or boundary
What happened	not_covered	The source record has no short title or summary.
When	source_backed · reported 2026-07-31	Occurred 2026-07-29. Source-record timestamps; no timezone or event time is inferred.
Affected entities	resolved · Terrestrial Energy Inc. /DE/ · 1 related	Canonical primary entity and stored related_entity_ids only.
Event classification	insider · insider.holding_change	canonical event type plus source-provided category; no sentiment or impact is inferred
Entity linking	resolved	Canonical entity resolved during ingestion
Deduplication	applied	unique source event key at ingestion
Source trust	high · terms allowed	Source registry metadata
Sentiment	not_covered	No sentiment model output is published for this record.
Market reaction	not_covered	Requires licensed quote, candle and volume observations for the affected instrument.
Historical analogs	not_covered	Requires an audited event-cluster corpus and matching methodology.
Impact mechanism	not_covered	No causal market-impact model is published for this record.
Related risks	not_covered	Risk implications require an audited instrument/entity exposure model.
Instrument linkage	not_covered	No instrument relation is inferred from an entity event; licensed instrument mapping is required.

Source: Open recorded SEC filing

Source: SEC EDGAR · as of 2026-07-31T00:00:00Z