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Fair value measurements | 6 Months Ended
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Jun. 30, 2025
Fair Value Disclosures [Abstract] |
Fair value measurements | 8. Fair value measurements The Company measures certain assets and liabilities at fair value in accordance with ASC 820. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction in the principal or most advantageous market at the measurement date. Valuation techniques are designed to maximize the use of observable inputs and minimize unobservable inputs. Financial assets and liabilities carried at fair value are to be classified and disclosed in one of the following three levels of the fair value hierarchy of which the first two are considered observable and the last is considered unobservable:
| ● | Level 1 - Quoted prices in active markets for identical assets or liabilities.
| ● | Level 2 - Observable inputs (other than Level 1 quoted prices), such as quoted prices in active markets for similar assets or liabilities, quoted prices in markets that are not active for identical or similar assets or liabilities, or other inputs that are observable or can be corroborated by observable market data.
| ● | Level 3 - Unobservable inputs that are supported by little or no market activity that are significant to determining the fair value of the assets or liabilities, including pricing models, discounted cash flow methodologies, and similar techniques.
To the extent that the valuation is based on models or inputs that are less observable or unobservable in the market, the determination of fair value requires more judgment. Accordingly, the degree of judgment exercised by the Company in determining fair value is greatest for instruments categorized in Level 3. A financial instrument’s level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. The fair value of assets classification is represented as follows: Schedule of fair value of assets classification
|  | Total |  |  | Level 1 |  |  | Level 2 |  |  | Level 3 |
|  | June 30, 2025 |
|  | Total |  |  | Level 1 |  |  | Level 2 |  |  | Level 3 |
Cash and cash equivalents |  | € | 5,176,632 |  |  | € | 5,176,632 |  |  |  | - |  |  |  | - |
Marketable Securities |  | € | 12,491,755 |  |  | € | 12,491,755 |  |  |  | - |  |  |  | - |
Total cash and cash equivalents, and marketable securities |  | € | 17,668,388 |  |  | € | 17,668,388 |  |  | € | - |  |  | € | - |
|  | Total |  |  | Level 1 |  |  | Level 2 |  |  | Level 3 |
|  | December 31, 2024 |
|  | Total |  |  | Level 1 |  |  | Level 2 |  |  | Level 3 |
Cash and cash equivalents |  | € | 4,581,749 |  |  | € | 4,581,749 |  |  | € | - |  |  | € | - |
Marketable Securities |  | € | 8,078,002 |  |  | € | 8,078,002 |  |  | € | - |  |  | € | - |
Total cash and cash equivalents and marketable securities |  | € | 12,659,751 |  |  | € | 12,659,751 |  |  | € | - |  |  | € | - |
The fair value of liabilities classification is represented as follows: Schedule of fair value of liabilities classification
|  | June 30, 2025 |
|  | Total |  |  | Level 1 |  |  | Level 2 |  |  | Level 3 |
Mandatory convertible bond |  | € | 7,555,000 |  |  |  | - |  |  |  | - |  |  | € | 7,555,000 |
Mandatory convertible bond |  | € | 7,555,000 |  |  | € | - |  |  | € | - |  |  | € | 7,555,000 |
The instrument is classified as a Level 3 fair value liability under ASC 820, based on the use of significant unobservable inputs in its valuation (See Note 13. Mandatory convertible bond issuance for more details). No transfers between levels of fair value hierarchy occurred during the period. The Company had no assets or liabilities classified as Level 3 fair value at December 31, 2024. The carrying values of the Company’s R&D tax credits, VAT credits, accounts payable, accrued expenses, and other current liabilities were evaluated and determined to approximate their fair values due to the short-term nature of these assets and liabilities.

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- Definition The entire disclosure of the fair value measurement of assets and liabilities, which includes financial instruments measured at fair value that are classified in shareholders' equity, which may be measured on a recurring or nonrecurring basis. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/820/tableOfContent + Details
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