9. Staff costs The table below summarizes the number of employees of our continuing operations on December 31, 2024, 2023 and 2022: | | | | | | | | | | | | 2024 | | 2023 | | 2022 | Number of employees on December 31 | | | 704 | | | 646 | | | 724 | Total | | | 704 | | | 646 | | | 724 |
The average number of FTE’s of our continuing operations during the years 2024, 2023 and 2022 was: | | | | | | | | | | | | Year ended December 31, | | | 2024 | | 2023 | | 2022 | Members of the Executive Committee | | | 4 | | | 4 | | | 4 | Research and development | | | 408 | | | 372 | | | 434 | Commercial and medical affairs | | | 26 | | | 13 | | | 7 | Corporate and support | | | 207 | | | 245 | | | 250 | Total | | | 645 | | | 634 | | | 695 |
Their aggregate remuneration comprised: | | | | | | | | | | | | Year ended December 31, | | | 2024 | | 2023 | | 2022 | | | | | (Euro, in thousands) | Wages and salaries | | € | (98,863) | | € | (100,250) | | € | (99,708) | Social security costs | | | (15,590) | | | (15,742) | | | (16,748) | Pension costs | | | (5,669) | | | (5,581) | | | (5,583) | Costs related to subscription right plans | | | (17,685) | | | (36,628) | | | (62,003) | Other personnel costs | | | (9,136) | | | (6,682) | | | (9,670) | Total personnel costs | | € | (146,943) | | € | (164,883) | | € | (193,712) |
Reference is made to note 32 “Share-based payments” for more information on our subscription right plans. |