Operating expenses (Tables)

3 Months Ended

Mar. 31, 2026

Expenses by nature [abstract]

Disclosure of expenses by nature


(amounts in thousands of euros)
SALES AND MARKETING		FOR THE THREE MONTHS ENDED MARCH 31, 2025		FOR THE THREE MONTHS ENDED MARCH 31, 2026
Personnel costs		474		1,007
Consulting and professional fees		218		666
Other sales and marketing expenses		168		75
Sales & Marketing		860		1,748

Research and development expenses break down as follows:


(amounts in thousands of euros)
RESEARCH AND DEVELOPMENT EXPENSES		FOR THE THREE MONTHS ENDED MARCH 31, 2025		FOR THE THREE MONTHS ENDED MARCH 31, 2026
Sub-contracting, studies and research		29,153		19,795
Personnel costs		5,368		24,395
Consulting and professional fees		3,981		4,026
Intellectual property fees		239		431
Other research and development expenses		560		896
Research and development expenses		39,301		49,542


(amounts in thousands of euros)
GENERAL AND ADMINISTRATIVE EXPENSES		FOR THE THREE MONTHS ENDED MARCH 31, 2025		FOR THE THREE MONTHS ENDED MARCH 31, 2026
Personnel costs		5,059		1,640
Consulting and professional fees		1,935		3,344
Other general and administrative expenses		1,039		1,299
General and administrative expenses		8,033		6,283