6. Prepaid expenses and other current assets

Prepaid expenses are analyzed as follows:

Prepaid insurance expenses as of June 30, 2025 and December 31, 2024 mainly include prepayments to insurers for directors’ and officers’ insurance services for liabilities that may arise in their capacity as directors and officers of a public entity.

Prepaid research expenses as of June 30, 2025 mainly relate to prepayments for expenses related to research grants.

Prepaid research expenses as of December 31, 2024 mainly relate to prepayments for expenses under the Cooperative Research and Development Agreement as discussed in Note 17.

Other prepaid expenses as of June 30, 2025 and December 31, 2024 mainly include prepayments for professional fees and purchases, which also include costs to fulfill a contract with customers which are expected to be recognized within 2025, upon delivery of services to these customers.

Other current assets are analyzed as follows:

6. Prepaid expenses and other current assets

Prepaid expenses are analyzed as follows:

Prepaid insurance expenses as of December 31, 2024 and 2023 mainly include prepayments to insurers for directors’ and officers’ insurance services for liabilities that may arise in their capacity as directors and officers of a public entity.

Prepaid research expenses as of December 31, 2024 and 2023 mainly relate to prepayments for expenses under the grant agreements and Cooperative Research and Development Agreement as discussed in Note 18.

Other prepaid expenses as of December 31, 2024 and 2023 mainly include prepayments for professional fees and purchases, which also include costs to fulfill a contract with customers which are expected to be recognized within 2024, upon delivery of services to these customers.

Other current assets are analyzed as follows:

Grant receivable as of December 31, 2024 and 2023 relate to accrued income from grants as disclosed in Note 2.