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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

394 Results
Date of transaction Issuing institution Person obliged to notify
25 may 2026 argenx SE Bank of America Corporation
24 apr 2026 argenx SE T. Rowe Price Group, Inc.
26 mar 2026 argenx SE Norges Bank
20 mar 2026 argenx SE Norges Bank
27 feb 2026 argenx SE Capital Research and Management Company
06 jan 2026 argenx SE Norges Bank
31 dec 2025 argenx SE Norges Bank
05 dec 2025 argenx SE FMR LLC
04 dec 2025 argenx SE FMR LLC
01 dec 2025 argenx SE FMR LLC
19 nov 2025 argenx SE FMR LLC
12 nov 2025 argenx SE FMR LLC
10 nov 2025 argenx SE FMR LLC
05 nov 2025 argenx SE FMR LLC
29 oct 2025 argenx SE FMR LLC
28 oct 2025 argenx SE FMR LLC
24 oct 2025 argenx SE Artisan Investments GP LLC
21 oct 2025 argenx SE FMR LLC
01 oct 2025 argenx SE Norges Bank
25 sep 2025 argenx SE FMR LLC
24 sep 2025 argenx SE FMR LLC
19 sep 2025 argenx SE BlackRock Inc.
09 sep 2025 argenx SE FMR LLC
25 aug 2025 argenx SE FMR LLC
22 aug 2025 argenx SE FMR LLC
14 aug 2025 argenx SE BlackRock Inc.
13 aug 2025 argenx SE BlackRock Inc.
04 aug 2025 argenx SE BlackRock Inc.
01 aug 2025 argenx SE FMR LLC
30 jul 2025 argenx SE BlackRock Inc.
23 jul 2025 argenx SE BlackRock Inc.
21 jul 2025 argenx SE BlackRock Inc.
18 jul 2025 argenx SE BlackRock Inc.
27 jun 2025 argenx SE BlackRock Inc.
26 jun 2025 argenx SE BlackRock Inc.
30 may 2025 argenx SE BlackRock Inc.
15 apr 2025 argenx SE Norges Bank
01 apr 2025 argenx SE FMR LLC
03 mar 2025 argenx SE FMR LLC
28 feb 2025 argenx SE FMR LLC
04 feb 2025 argenx SE FMR LLC
03 feb 2025 argenx SE FMR LLC
22 jan 2025 argenx SE Baillie Gifford & Co
10 jan 2025 argenx SE FMR LLC
31 dec 2024 argenx SE FMR LLC
20 dec 2024 argenx SE T. Rowe Price Group, Inc.
18 dec 2024 argenx SE T. Rowe Price Group, Inc.
12 dec 2024 argenx SE T. Rowe Price Group, Inc.
06 dec 2024 argenx SE FMR LLC
02 dec 2024 argenx SE Artisan Investments GP LLC

Date last update: 01 June 2026