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v3.25.2

Schedule of fair valuation monte carlo model (Details) € / shares in Units, $ / shares in Units, $ in Thousands, € in Millions | Jun. 30, 2025 USD ($) $ / shares | Jun. 04, 2025 | Mar. 19, 2025 USD ($) Simulations $ / shares | Jun. 30, 2025 € / shares | Mar. 19, 2025 EUR (€) € / shares
--- | --- | --- | --- | --- | ---
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items] |  |  |  |  |
Probability |  | 6.00% | 4.00% |  |
PV | $ 8,873 |  | $ 8,165 |  |
Investment round [Member] |  |  |  |  |
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items] |  |  |  |  |
Event date | Jun. 30, 2026 |  | Mar. 31, 2026 |  |
Probability | 2.50% |  | 2.50% |  |
Average bond balance | $ 9,495 |  | $ 8,678 |  |
Average payoff balance | $ 10,205 |  | $ 9,321 |  |
Discount rate | 6.80% |  | 7.30% |  |
PV factor | € / shares |  |  |  | € 0.9359 | € 0.9299
PV | $ 239 |  | $ 217 |  |
Change of Control [Member] |  |  |  |  |
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items] |  |  |  |  |
Event date | Dec. 31, 2027 |  | Dec. 31, 2027 |  |
Probability | 5.00% |  | 5.00% |  |
Average bond balance | $ 10,301 |  | $ 9,548 |  |
Average payoff balance | $ 10,340 |  | $ 9,776 |  |
Discount rate | 6.80% |  | 7.30% |  |
PV factor | € / shares |  |  |  | 0.8472 | 0.8221
PV | $ 438 |  | $ 402 |  |
Maturity [Member] |  |  |  |  |
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items] |  |  |  |  |
Event date | Mar. 19, 2028 |  | Mar. 19, 2028 |  |
Probability | 90.00% |  | 90.00% |  |
Average bond balance | $ 10,417 |  | $ 9,656 |  |
Average payoff balance | $ 10,863 |  | $ 10,317 |  |
Discount rate | 6.80% |  | 7.30% |  |
PV factor | € / shares |  |  |  | 0.8352 | 0.8098
PV | $ 8,166 |  | $ 7,519 |  |
Dissolution [Member] |  |  |  |  |
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items] |  |  |  |  |
Event date | Dec. 31, 2026 |  | Sep. 30, 2026 |  |
Probability | 2.50% |  | 2.50% |  |
Average bond balance | $ 9,765 |  | $ 8,927 |  |
Average payoff balance | $ 1,321 |  | $ 1,225 |  |
Discount rate | 6.80% |  | 7.30% |  |
PV factor | € / shares |  |  |  | € 0.9052 | € 0.8977
PV | $ 30 |  | $ 27 |  |
Mandatory Convertible Bond [Member] |  |  |  |  |
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items] |  |  |  |  |
Effective date |  |  | Mar. 19, 2025 |  |
Event date |  |  | Mar. 19, 2028 |  |
Nominal value |  |  | $ 8,165 |  | € 7.5
Risk-free rate |  |  | 4.00% | 3.70% | 4.00%
Instrument term | 2 years 8 months 12 days |  | 3 years |  |
Stock volatility | 8200.00% |  | 83.00% |  |
GNTA share price | $ / shares | $ 3.05 |  | $ 3.82 |  |
Instrument term |  |  | 3 years |  |
Number of simulations | Simulations |  |  | 20,000 |  |
Implied yield |  |  | 7.30% | 6.80% | 7.30%
Probability |  |  | 6.00% |  |
Mandatory Convertible Bond [Member] | Measurement Input, Option Volatility [Member] |  |  |  |  |
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items] |  |  |  |  |
Instrument term |  |  | 3 years |  |
Mandatory Convertible Bond [Member] | Interest Rate Risk [Member] |  |  |  |  |
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items] |  |  |  |  |
Instrument term |  |  | 3 years |  |

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