Terrestrial Energy IMSR SEC Filings

NASDAQ IMSR
$2.84 +0.27 (+10.72%)
At close: Nov 6, 2026 · 4:00 PM EST
EDGAR Disclosures

SEC Filings

Source SEC EDGAR

Every SEC filing Terrestrial Energy Inc. /DE/ (IMSR) has made, as reported on EDGAR — annual and quarterly reports, current reports, insider transactions and ownership disclosures. Filter by form group, form type or period, and open any filing or its index directly.

Form Type
# Form Type Form Group Accession Date Filing Index
1POS AMOthers0001104659-26-122131Nov 3, 2026 4:56 PM
2S-3Prospectus0001104659-26-122124Nov 3, 2026 4:55 PM
3S-3Prospectus0001104659-26-122102Nov 3, 2026 4:49 PM
44Insider Transaction0001193125-26-440015Oct 30, 2026 1:17 PM
58-KCurrent Report0002019804-26-000030Oct 27, 2026 11:49 AM
64Insider Transaction0001193125-26-432264Oct 26, 2026 10:30 PM
74Insider Transaction0001193125-26-427979Oct 21, 2026 1:17 AM
83Insider Transaction0001193125-26-427975Oct 21, 2026 1:15 AM
94Insider Transaction0001193125-26-423068Oct 15, 2026 1:42 AM
104Insider Transaction0001193125-26-421089Oct 14, 2026 5:15 PM
114Insider Transaction0001193125-26-420002Oct 13, 2026 7:06 PM
12424B3Prospectus0002019804-26-000027Aug 14, 2026 8:29 PM
1310-QQuarterly & Annual Report0001104659-26-094085Aug 11, 2026 8:30 PM
148-KCurrent Report0001104659-26-093776Aug 11, 2026 12:00 PM
154Insider Transaction0001193125-26-328808Jul 31, 2026 9:00 PM
163Insider Transaction0001193125-26-328703Jul 31, 2026 8:30 PM
178-KCurrent Report0002019804-26-000021Jul 31, 2026 8:06 PM
188-KCurrent Report0002019804-26-000018Jul 28, 2026 8:35 PM
194Insider Transaction0001193125-26-318233Jul 27, 2026 9:00 PM
203Insider Transaction0001193125-26-318156Jul 27, 2026 8:30 PM
218-KCurrent Report0002019804-26-000013Jul 21, 2026 1:15 PM
228-KCurrent Report0002019804-26-000006Jul 17, 2026 8:28 PM
238-KCurrent Report0001104659-26-073471Jun 12, 2026 8:15 PM
24EFFECTOthers9999999995-26-001960Jun 11, 2026 4:15 AM
25POS AMOthers0001104659-26-071014Jun 5, 2026 8:36 PM
26S-8Prospectus0001104659-26-063860May 19, 2026 8:30 PM
27424B3Prospectus0001104659-26-061280May 14, 2026 8:46 PM
28424B3Prospectus0001104659-26-061279May 14, 2026 8:45 PM
2910-QQuarterly & Annual Report0001104659-26-061234May 14, 2026 8:30 PM
308-KCurrent Report0001104659-26-060716May 14, 2026 11:45 AM
318-KCurrent Report0001104659-26-057977May 8, 2026 8:30 PM
32ARSOthers0001104659-26-051687Apr 29, 2026 9:06 PM
33DEFA14AOthers0001104659-26-051678Apr 29, 2026 9:05 PM
34DEF 14AOthers0001104659-26-051655Apr 29, 2026 9:01 PM
358-KCurrent Report0001104659-26-044426Apr 16, 2026 8:40 PM
364Insider Transaction0001193125-26-155213Apr 14, 2026 10:00 PM
374Insider Transaction0001193125-26-155212Apr 14, 2026 10:00 PM
384Insider Transaction0001193125-26-155211Apr 14, 2026 10:00 PM
394Insider Transaction0001193125-26-155209Apr 14, 2026 10:00 PM
40DOthers0002019804-26-000001Mar 31, 2026 1:28 PM
41424B3Prospectus0001104659-26-036889Mar 30, 2026 10:10 PM
42424B3Prospectus0001104659-26-036893Mar 30, 2026 10:10 PM
43POS EXOthers0001104659-26-036902Mar 30, 2026 9:35 PM
44POS EXOthers0001104659-26-036900Mar 30, 2026 9:35 PM
4510-KQuarterly & Annual Report0001104659-26-036846Mar 30, 2026 9:32 PM
468-KCurrent Report0001104659-26-036467Mar 30, 2026 11:30 AM
473Insider Transaction0001193805-26-000145Feb 17, 2026 2:00 AM
48SCHEDULE 13GBeneficial Ownership Report0001104659-26-016540Feb 17, 2026 9:53 PM
498-KCurrent Report0001104659-26-007880Jan 29, 2026 5:28 PM
50SCHEDULE 13GBeneficial Ownership Report0001193805-26-000054Jan 22, 2026 10:16 PM

Terrestrial Energy Inc. /DE/ SEC Filings API

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