Terrestrial Energy Inc. (IMSR): R&D Expense

Annual figures by period end, from SEC filings.

$9.77M

Year ended 2025-12-31

$14.98M

Trailing 12 months to 2026-06-30

2024-12-31 R&D Expense (USD) 2025-12-31

Period ended	R&D Expense	Change YoY	Source filing
2025-12-31	$9.77M	+88.7%	2026-03-30, From 2025-01-01
2024-12-31	$5.18M	n/a	2026-03-30, From 2024-01-01

R&D Expense at similar companies

Companies with the same SEC industry code (Fabricated Plate Work (Boiler Shops)), reporting in the same currency, closest in revenue. Each shows its own latest fiscal year, so period ends differ.

Company	Year ended	R&D Expense	Change YoY
Terrestrial Energy Inc. (IMSR)	2025-12-31	$9.77M	+88.7%
Terra Innovatum Global N.V. (NKLR)	2025-12-31	$1.39M	n/m
Nuscale Power Corp (SMR)	2025-12-31	$45.53M	-2.7%

Compare IMSR, NKLR, SMR side by side · Screen every company in Fabricated Plate Work (Boiler Shops) ↗