Financial risk management (Tables)

12 Months Ended

Dec. 31, 2019

Financial risk management

Disclosure of categories of material financial assets and liabilities

	December 31,
	2019		2018		2017
	(Euro, in thousands)
Financial assets held at fair value through profit or loss
Equity instruments	€	11,275	€	6,000	€	1,754
Current financial investments		3,919,216		—		—
Financial assets at amortised cost
Cash and cash equivalents		1,861,616		1,290,796		1,151,211
Restricted cash (current and non-current)		1,418		1,276		1,158
Trade and other receivables (excl prepayments)		53,717		18,467		27,422
Total financial assets	€	5,847,242	€	1,316,539	€	1,181,545
Financial liabilities held at fair value through profit or loss
Current financial instruments	€	6,198	€	—	€	—
Financial liabilities at amortised cost
Trade & other liabilities		142,510		68,038		47,122
Other non-current liabilities		6,914		1,502		1,597
Lease liabilities		25,384		—		9
Total financial liabilities	€	181,006	€	69,540	€	48,727

Disclosure of aging balance of receivables

	December 31,
	2019		2018		2017
	(Euro, in thousands)
60 - 90 days	€	87	€	236	€	—
90 - 120 days		—		12		1
more than 120 days	€	—	€	—	€	—

Foreign exchange risk

Financial risk management

Disclosure of sensitivity of exchange rate risk

	December 31,
	2019		2018		2017
Net book value	(Euro, in thousands)
Increase in Euros - U.S. Dollars	€	(133,373)	€	(27,200)	€	(21,083)
Increase in Euros - GB Pounds		113		100		122
Increase in Euros - CH Francs		538		208		203
Increase in Euros - HR Kunas		650		611		(185)
Increase in U.S. Dollars - GB Pounds	€	(894)	€	(923)	€	(831)