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Advent Technologies Holdings, Inc. (ADNH): R&D Expense

Annual figures by period end, from SEC filings.

Not updated since 2024-12-31. No annual report in US GAAP has been filed since. Companies that switch to IFRS reporting, as many foreign filers do, or stop filing are not updated here.

Restated years: each year's figure is from the latest filing that reports it. The company later restated the year ended 2023-12-31 (for example after a spin-off or a discontinued operation), while the year before it was last reported on the old basis. Changes across those points are marked n/c (not comparable), and growth rates are not computed across them.

$3.23M
Year ended 2024-12-31
$1.63M
Trailing 12 months to 2025-09-30
$9.80M2020-12-31: $102.5K2021-12-31: $3.54M2022-12-31: $9.80M2023-12-31: $7.57M2024-12-31: $3.23M$3.23M
2020-12-31 R&D Expense (USD) 2024-12-31
Period endedR&D ExpenseChange YoYSource filing
2024-12-31$3.23M-57.4%2025-06-06, From 2024-01-01
2023-12-31$7.57Mn/c2025-06-06, From 2023-01-01
2022-12-31$9.80M+176.6%2024-08-13, From 2022-01-01
2021-12-31$3.54Mn/m2023-03-31, From 2021-01-01
2020-12-31$102.5Kn/a2022-03-31, From 2020-01-01