27. Note to the cash flow statement
| 
 | 31 December | |
|---|---|---|
| (thousands of €) | 2021 | 2020 | 
| Adjustment for non-cash transactions | 
 | 
 | 
| Depreciation, amortization and impairment | 34,636 | 18,682 | 
| Share-based compensation expenses | 70,726 | 79,959 | 
| Decrease in retirement benefit obligations and provisions | (2,347) | (260) | 
| Unrealized exchange gains (-)/losses and non-cash other financial result | (57,073) | 105,055 | 
| Discounting effect of deferred income | 9,289 | 16,278 | 
| Fair value re-measurement of warrants | (2,960) | (3,034) | 
| Net change in (fair) value of current financial investments | (119) | 15,900 | 
| Fair value adjustment financial assets held at fair value through profit or loss | 4,919 | (2,396) | 
| Other non-cash expenses | 648 | 539 | 
| Total adjustment for non-cash transactions | 57,718 | 230,723 | 
| 
 | 
 | 
 | 
| Adjustment for items to disclose separately under operating cash flow | 
 | 
 | 
| Interest expense | 11,656 | 9,424 | 
| Interest income | (2,853) | (7,476) | 
| Tax expense | 2,423 | 2,119 | 
| Total adjustment for items to disclose separately under operating cash flow | 11,227 | 4,067 | 
| 
 | 
 | 
 | 
| Adjustment for items to disclose under investing and financing cash flows | 
 | 
 | 
| Gain on sale of subsidiaries | (22,191) | - | 
| Loss on sale of fixed assets | - | 82 | 
| Realized exchange gain on sale of current financial investments | (6,645) | - | 
| Interest income on current financial assets | (12) | (2,554) | 
| Total adjustment for items to disclose separately under investing and financing cash flow | (28,847) | (2,472) | 
| Change in working capital other than deferred income | 
 | 
 | 
| Increase in inventories | (21,168) | (100) | 
| Increase (-)/decrease in receivables | 79,859 | (177,155) | 
| Increase/decrease (-) in liabilities | (35,353) | 31,163 | 
| Total change in working capital other than deferred income | 23,337 | (146,092) |