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Register substantial holdings and gross short positions

This overview shows all substantial holdings and gross short positions in issuing institutions and shares with special controlling rights.

An issuing institution is: a public limited company (naamloze vennootschap) incorporated under Dutch law whose (depositary receipts for) shares are admitted to trading on a regulated market in the Netherlands or in another Member State of the European Union or an EEA State, or a legal entity incorporated under the law of a state that is not an EU Member State and whose (depositary receipts for) shares are admitted to trading on a regulated market in the Netherlands.

As soon as the substantial holding or short position equals or exceeds 3% of the issued capital, the holder should report this. Subsequently, he should notify the AFM again when his substantial holding or short position consequently reaches, exceeds or falls below a threshold. This can be caused by the acquisition or disposal of shares by the shareholder or because the issued capital of the issuing institution is increased or decreased. Thresholds are: 3%, 5%, 10%, 15%, 20%, 25%, 30%, 40%, 50%, 60%, 75% en 95%.

The duty to notify applies to legal entities as well as natural persons.

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WMZ notifications 1991  1996

The two older databases can be downloaded below

10 Results
Date of transaction Issuing institution Person obliged to notify
24 jun 2024 argenx SE Wellington Management Group LLP
26 jan 2024 argenx SE Wellington Management Group LLP
17 jul 2023 argenx SE Wellington Management Group LLP
05 oct 2020 argenx SE Wellington Management Group LLP
03 aug 2020 argenx SE Wellington Management Group LLP
04 jun 2020 argenx SE Wellington Management Group LLP
05 feb 2020 argenx SE Wellington Management Group LLP
21 nov 2019 argenx SE Wellington Management Group LLP
07 nov 2019 argenx SE Wellington Management Group LLP
16 oct 2019 argenx SE Wellington Management Group LLP

Date last update: 01 June 2026