Notes to the interim condensed consolidated statement of financial position - Short-term Derivatives (Details)
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6 Months Ended |
12 Months Ended |
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May 07, 2025
EUR (€)
€ / shares
shares
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May 02, 2025
€ / shares
shares
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Apr. 28, 2025
shares
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Dec. 19, 2024
EUR (€)
€ / shares
shares
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Dec. 11, 2024
EUR (€)
€ / shares
D
shares
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Oct. 17, 2024
EUR (€)
€ / shares
shares
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Jun. 30, 2025
EUR (€)
€ / shares
shares
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Jun. 30, 2024
EUR (€)
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Dec. 31, 2024
EUR (€)
€ / shares
shares
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Oct. 14, 2024
EUR (€)
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| Disclosure of detailed information about borrowings [line items] |
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| Short-term debt - derivatives | € |
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€ 73,400,000
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| Par value per share |
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€ 0.01
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| Proceeds from issuance of shares | € |
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€ 57,370,000
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€ 6,000
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| Issue of prefunded warrants | € |
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58,206,000
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| T2 New Shares and T2 BSAs call options |
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| Disclosure of detailed information about borrowings [line items] |
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| Losses on fair value variation | € |
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€ (84,700,000)
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| Short-term debt - derivatives | € |
€ 158,100,000
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€ 73,400,000
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| Tranche I, 2024 Financing arrangement in three tranches |
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| Disclosure of detailed information about borrowings [line items] |
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| Shares issued during period upon exercise of warrants | shares |
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1,000,000
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| Tranche I, phase II, 2024 Financing arrangement in three tranches |
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| Disclosure of detailed information about borrowings [line items] |
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| Proceeds from issuance of shares and warrants | € |
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€ 21,400,000
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| Net proceeds from issuance of shares and warrants | € |
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€ 20,100,000
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| Tranche II, 2024 Financing arrangement in three tranches |
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| Disclosure of detailed information about borrowings [line items] |
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| Fair Value (in millions of euros) | € |
273,700,000
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| Proceeds from issuance of shares and warrants | € |
115,600,000
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| Net proceeds from issuance of shares and warrants | € |
108,000,000
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| Tranche II, 2024 Financing arrangement in three tranches | T2 New Shares and T2 BSAs call options |
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| Disclosure of detailed information about borrowings [line items] |
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| Short-term debt - derivatives | € |
€ 158,100,000
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| T1 BSA Warrants | Tranche I, 2024 Financing arrangement in three tranches |
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| Disclosure of detailed information about borrowings [line items] |
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| Number of warrants exercised | shares |
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1,000,000
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| Shares issued during period upon exercise of warrants | shares |
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1,000,000
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| T1 BSA Warrants | Tranche I, phase I, 2024 Financing arrangement in three tranches |
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| Disclosure of detailed information about borrowings [line items] |
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| Number of warrants issued | shares |
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35,399,481
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| Number of shares callable by warrants | shares |
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35,399,481
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| Exercise price per warrant |
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€ 0.01
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| Subscription price per warrant |
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€ 1.34
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| Proceeds from issuance of shares and warrants | € |
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€ 94,100,000
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| Net proceeds from issuance of shares and warrants | € |
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€ 86,600,000
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| T1 bis BSA Warrants | Tranche I, phase II, 2024 Financing arrangement in three tranches |
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| Disclosure of detailed information about borrowings [line items] |
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| Number of warrants issued | shares |
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8,053,847
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| Number of shares callable by warrants | shares |
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8,053,847
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| Exercise price per warrant |
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€ 0.01
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| Warrants, Subscription Price |
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€ 1.34
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| T2 BSA Prefunded Warrants |
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| Disclosure of detailed information about borrowings [line items] |
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| Price per share |
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€ 1.35
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| Number of shares callable by warrants | shares |
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43,437,036
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| Subscription price per warrant |
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€ 1.34
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| T2 BSA Prefunded Warrants | Tranche II, 2024 Financing arrangement in three tranches |
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| Disclosure of detailed information about borrowings [line items] |
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| Price per share |
€ 1.35
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| Number of warrants issued | shares |
43,437,036
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43,437,036
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43,437,036
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| Number of shares callable by warrants | shares |
43,437,036
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| Subscription price per warrant |
€ 1.34
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| Par value per share |
€ 0.01
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| Aggregate gross proceed | € |
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€ 58,639,998.6
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| Adjustment to warrant subscription price |
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€ 0.01
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| Approximate number of warrants expected to be issued | shares |
43,400,000
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43,400,000
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43,400,000
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| Number of shares per warrant | shares |
1
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1
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1
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1
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| Stock price |
€ 3.19
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€ 2.37
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€ 2.18
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| Maturity term of warrants |
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3 months 15 days
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3 months
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| Expected volatility |
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59.30%
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58.30%
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| Fair value of potential warrants | € |
€ 138,100,000
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€ 45,400
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€ 37,300
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| Settlement of warrants through reserves | € |
€ 138,100,000
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| Unit Fair value (€) |
3.18
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1.05
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0.86
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| Issue of prefunded warrants | € |
€ 58,200,000
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| Share price, measurement input |
€ 3.19
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| T2 BSA Prefunded Warrants | Tranche II, 2024 Financing arrangement in three tranches | T2 BSA Call options |
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| Disclosure of detailed information about borrowings [line items] |
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| Short-term debt - derivatives | € |
€ 79,900,000
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| Unit consisting of one T2 BSA Warrant and one T3 BSA warrant | Tranche II, 2024 Financing arrangement in three tranches |
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| Disclosure of detailed information about borrowings [line items] |
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| Subscription price per warrant |
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€ 1.34
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| T3 BSAs Warrants Attached To T2 New Shares | Tranche II, 2024 Financing arrangement in three tranches |
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| Disclosure of detailed information about borrowings [line items] |
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| Number of shares callable by warrants | shares |
38,239,990
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38,239,990
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| Exercise price per warrant |
€ 1.5
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€ 1.5
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| T3 BSAs Warrants Attached To T2 BSA Warrants |
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| Disclosure of detailed information about borrowings [line items] |
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| Number of shares callable by warrants | shares |
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39,093,329
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| Exercise price per warrant |
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€ 1.5
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| T3 BSAs Warrants Attached To T2 BSA Warrants | Tranche II, 2024 Financing arrangement in three tranches |
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| Disclosure of detailed information about borrowings [line items] |
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| Number of shares callable by warrants | shares |
39,093,329
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| Exercise price per warrant |
€ 1.5
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| Number of warrants in each unit | shares |
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1
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| T2 and T3 BSAs | Tranche II, 2024 Financing arrangement in three tranches |
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| Disclosure of detailed information about borrowings [line items] |
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| Subscription price per warrant |
€ 1.34
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| Issue of prefunded warrants | € |
€ 58,200,000
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| T1 New Share | Tranche I, phase I, 2024 Financing arrangement in three tranches |
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| Disclosure of detailed information about borrowings [line items] |
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| Number of shares issued during the period | shares |
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34,600,507
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| Price per share |
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€ 1.35
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| T1 bis Shares | Tranche I, phase II, 2024 Financing arrangement in three tranches |
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| Disclosure of detailed information about borrowings [line items] |
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| Number of shares issued during the period | shares |
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7,872,064
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| Price per share |
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€ 1.35
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| T2 New Share | Tranche II, 2024 Financing arrangement in three tranches |
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| Disclosure of detailed information about borrowings [line items] |
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| Number of shares issued during the period | shares |
42,488,883
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42,488,883
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42,488,883
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| Price per share |
€ 1.35
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| Par value per share |
€ 0.01
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| Approximate number of shares expected to be issued | shares |
42,500,000
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42,500,000
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42,500,000
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| Number of shares per instruments | shares |
1
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1
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1
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| Stock price |
€ 3.19
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€ 2.37
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€ 2.18
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| Maturity |
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3 months 15 days
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3 months
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| Expected volatility |
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59.30%
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58.30%
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| Fair value of potential shares | € |
€ 135,500,000
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€ 44,000
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€ 36,100
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| Unit fair value |
3.19
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1.04
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0.85
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| Proceeds from issuance of shares | € |
€ 57,400,000
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| Share price, measurement input |
€ 3.19
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| T2 New Share | Tranche II, 2024 Financing arrangement in three tranches | T2 New Shares Call options |
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| Disclosure of detailed information about borrowings [line items] |
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| Short-term debt - derivatives | € |
€ 78,200,000
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| T2 New Share | If five day volume weighted average price more than €1.35 | Tranche II, 2024 Financing arrangement in three tranches |
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| Disclosure of detailed information about borrowings [line items] |
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| Call option strike price |
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€ 1.35
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| Call option, conversion ratio |
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1
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| T2 New Share | ABSA warrants | Tranche II, 2024 Financing arrangement in three tranches |
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| Disclosure of detailed information about borrowings [line items] |
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| Aggregate gross proceed | € |
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|
€ 57,359,992
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| Number of trading days of volume weighted average price | D |
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5
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| T2 New Share | T3 BSAs Warrants Attached To T2 New Shares | Tranche II, 2024 Financing arrangement in three tranches |
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| Disclosure of detailed information about borrowings [line items] |
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| Number of shares per warrant | shares |
1
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| Number of warrants in each unit | shares |
|
1
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| ABSAs | Tranche II, 2024 Financing arrangement in three tranches |
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| Disclosure of detailed information about borrowings [line items] |
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| Price per share |
€ 1.35
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€ 1.35
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| Maximum | 2024 Financing arrangement in three tranches |
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| Disclosure of detailed information about borrowings [line items] |
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| Structured Financing amount | € |
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€ 348,000,000
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| Maximum | Tranche II, 2024 Financing arrangement in three tranches |
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| Disclosure of detailed information about borrowings [line items] |
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| Structured Financing amount | € |
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|
€ 116,000,000
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| Maximum | T2 BSA Prefunded Warrants | Tranche II, 2024 Financing arrangement in three tranches |
|
|
|
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|
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| Disclosure of detailed information about borrowings [line items] |
|
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|
|
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| Exercise price per warrant |
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|
€ 1.35
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|
|
|
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| Maximum | T3 BSA warrants | Tranche II, 2024 Financing arrangement in three tranches |
|
|
|
|
|
|
|
|
|
|
| Disclosure of detailed information about borrowings [line items] |
|
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|
|
|
|
|
|
|
|
| Additional proceeds receivable upon exercise of warrants | € |
€ 116,000,000
|
|
|
|
|
|
|
|
|
|
| Maximum | T3 BSAs Warrants Attached To T2 New Shares | Tranche II, 2024 Financing arrangement in three tranches |
|
|
|
|
|
|
|
|
|
|
| Disclosure of detailed information about borrowings [line items] |
|
|
|
|
|
|
|
|
|
|
| Additional proceeds receivable upon exercise of warrants | € |
57,400,000
|
|
|
|
|
|
|
|
|
|
| Maximum | T3 BSAs Warrants Attached To T2 BSA Warrants | Tranche II, 2024 Financing arrangement in three tranches |
|
|
|
|
|
|
|
|
|
|
| Disclosure of detailed information about borrowings [line items] |
|
|
|
|
|
|
|
|
|
|
| Additional proceeds receivable upon exercise of warrants | € |
€ 58,600,000
|
|
|
|
|
|
|
|
|
|
| Maximum | T2 and T3 BSAs | Tranche II, 2024 Financing arrangement in three tranches |
|
|
|
|
|
|
|
|
|
|
| Disclosure of detailed information about borrowings [line items] |
|
|
|
|
|
|
|
|
|
|
| Number of shares callable by warrants | shares |
120,800,000
|
|
|
|
|
|
|
|
|
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| Maximum | T2 New Share | ABSA warrants | Tranche II, 2024 Financing arrangement in three tranches |
|
|
|
|
|
|
|
|
|
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| Disclosure of detailed information about borrowings [line items] |
|
|
|
|
|
|
|
|
|
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| Exercise price per warrant |
|
|
|
|
€ 1.35
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|