| Summary of the stock option plan and the changes during the period |
| | | | | | | | | | | | | | | | | | | | | | | | Weighted | | | | | | | | Weighted | | Weighted | | Average | | | | | | Number of | | Average | | Average | | Remaining | | Aggregate | | | Outstanding | | Exercise | | Grant Date | | Contractual | | Intrinsic | | | Options | | Price | | Fair Value | | Years | | Value | Balance, January 1, 2025 | | 5,984,204 | | $ | 3.04 | | | | | 8.00 | | $ | 81,519,660 | Expired | | (1,742) | | | 330.95 | | | | | | | | | Forfeited | | (25,625) | | | 4.49 | | | | | | | | | Exercised | | (100,274) | | | 1.56 | | | | | | | | | Balance, September 30, 2025 | | 5,856,563 | | $ | 2.98 | | | | | 7.25 | | $ | 5,739,432 | Vested and Exercisable, September 30, 2025 | | 5,502,559 | | $ | 3.07 | | | | | 7.16 | | $ | 5,392,508 | Vested and Expected to Vest, September 30, 2025 | | 5,856,563 | | $ | 2.98 | | | | | 7.25 | | $ | 5,739,432 |
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| | | | | | | | | | | | | | | | | | | | | | | | Weighted | | | | | | | | Weighted | | Weighted | | Average | | | | | | Number of | | Average | | Average | | Remaining | | Aggregate | | | Outstanding | | Exercise | | Grant Date | | Contractual | | Intrinsic | | | Options | | Price | | Fair Value | | Years | | Value | Balance, January 1, 2023 | | 8,512,225 | | $ | 3.75 | | | | | 9.58 | | | | Forfeited | | | | | | | | | | | | | | Solely Time-based Vesting | | (17,506) | | | | | | | | | | | | Performance Conditioned Vesting | | (7,533,334) | | | 3.00 | | | | | | | | | Total Options Forfeited | | (7,550,840) | | | 3.00 | | | | | | | | | Expired | | (6,510) | | | 49.83 | | | | | | | | | Exercised | | (6,411) | | | 0.53 | | | | | | | | | Balance, December 31, 2023 | | 948,464 | | $ | 6.20 | | | | | 7.25 | | | | Vested and Exercisable, December 31, 2023 | | 937,592 | | $ | 6.26 | | | | | 7.24 | | | | Vested and Expected to Vest, December 31, 2023 | | 948,464 | | $ | 6.20 | | | | | 7.25 | | | | Granted | | 5,059,228 | | | 2.57 | | $ | 1.50 | | | | | | Forfeited | | (6,769) | | | 2.57 | | | | | | | | | Expired | | (1,878) | | | 348.07 | | | | | | | | | Exercised | | (14,841) | | | 2.29 | | | | | — | | | | Balance, December 31, 2024 | | 5,984,204 | | $ | 3.04 | | | | | 8.00 | | $ | 81,519,660 | Vested and Exercisable, December 31, 2024 | | 5,554,326 | | $ | 3.07 | | | | | 7.91 | | $ | 75,783,094 | Vested and Expected to Vest, December 31, 2024 | | 5,984,204 | | $ | 3.04 | | | | | 8.00 | | $ | 81,519,660 |
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| Summary of stock-based compensation expense |
| | | | | | | | | | | | | | | Three Months Ended September 30, | | Nine Months Ended September 30, | | | 2025 | | 2024 | | 2025 | | 2024 | Cost of goods sold | | $ | 26 | | $ | — | | $ | 58 | | $ | 115 | Research and development | | | 141 | | | 18 | | | 318 | | | 729 | Sales and marketing | | | 773 | | | 29 | | | 1,582 | | | 2,597 | General and administrative | | | 1,424 | | | 4 | | | 3,234 | | | 3,960 | Total stock-based compensation expense | | $ | 2,364 | | $ | 51 | | $ | 5,192 | | $ | 7,401 |
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| | | | | | | | | Year Ended December 31, | | | 2024 | | 2023 | Cost of goods sold | | $ | 130 | | $ | — | Research and development | | | 802 | | | — | Sales and marketing | | | 2,808 | | | 1 | General and administrative | | | 3,995 | | | — | Total stock-based compensation expense | | $ | 7,735 | | $ | 1 |
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