argenx Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

ENXTBR:ARGX Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Shares	Max Price
26 Feb 26	Sell€1,267,490	Anthony Rosenberg	Individual	1,750	€724.28
14 Jan 26	Sell€643,532	James Daly	Individual	925	€695.71
25 Nov 25	Sell€37,806	Timothy Van Hauwermeiren	Individual	48.24	€783.70
21 Nov 25	Sell€38,447	Timothy Van Hauwermeiren	Individual	48.24	€797.00
13 Nov 25	Sell€37,048	Timothy Van Hauwermeiren	Individual	48.24	€768.00
03 Sep 25	Sell€6,090,000	Timothy Van Hauwermeiren	Individual	10,000	€609.00
02 Sep 25	Sell€371,245	Brian Kotzin	Individual	608	€610.60
13 Aug 25	Sell€233,410	Ana Cespedes	Individual	426	€547.91
12 May 25	Buy€4,618	Timothy Van Hauwermeiren	Individual	9.64	€479.00

Insider Trading Volume

Insider Buying: ARGX insiders have only sold shares in the past 3 months.

Ownership Breakdown

What is the ownership structure of ARGX?
Owner Type	Number of Shares	Ownership Percentage
Private Companies	2,100	0.00338%
Individual Insiders	85,945	0.138%
General Public	15,451,411	24.8%
Institutions	46,648,315	75%

Dilution of Shares: Shareholders have not been meaningfully diluted in the past year.

Top Shareholders

Top 25 shareholders own 54.44% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
8.99%	FMR LLC	5,591,242	€3.7b	-1.72%	0.2%
7.37%	BlackRock, Inc.	4,585,530	€3.1b	4.84%	0.05%
5.75%	Artisan Partners Limited Partnership	3,576,266	€2.4b	48.9%	1.93%
5.44%	T. Rowe Price Group, Inc.	3,381,710	€2.3b	-7.76%	0.21%
3.97%	Janus Henderson Group plc	2,469,046	€1.6b	-4.53%	0.67%
3.64%	Wellington Management Group LLP	2,261,668	€1.5b	0.63%	0.27%
2.91%	Norges Bank Investment Management	1,809,315	€1.2b	-2.07%	0.08%
2.88%	The Vanguard Group, Inc.	1,789,762	€1.2b	0%	0.02%
1.59%	Avoro Capital Advisors LLC	990,000	€659.5m	0%	7.14%
1.08%	RTW Investments, LP	673,497	€448.7m	0%	5.24%
0.89%	Amundi Asset Management SAS	551,270	€367.3m	9.3%	0.07%
0.84%	ClearBridge Investments, LLC	522,143	€347.9m	-32.7%	0.29%
0.83%	Geode Capital Management, LLC	513,121	€341.8m	0.46%	0.02%
0.81%	Jennison Associates LLC	502,298	€334.6m	-0.85%	0.22%
0.79%	UBS Asset Management AG	494,244	€329.3m	0.29%	0.02%
0.74%	Bellevue Asset Management AG	461,854	€307.7m	-15.5%	5.89%
0.71%	Franklin Resources, Inc.	444,350	€296.0m	-5.29%	0.1%
0.71%	AllianceBernstein L.P.	443,612	€295.5m	289%	0.1%
0.68%	Eaton Vance Management	424,464	€282.8m	-0.04%	0.06%
0.66%	Federated Hermes, Inc.	410,802	€273.7m	-29.9%	0.55%
0.66%	Teachers Insurance and Annuity Association-College Retirement Equities Fund	408,850	€272.4m	18.6%	0.06%
0.65%	Lord, Abbett & Co. LLC	404,032	€269.2m	-0.37%	0.87%
0.65%	Invesco Ltd.	403,238	€268.6m	0%	0.07%
0.61%	Polar Capital Holdings Plc	379,042	€252.5m	0%	0.72%
0.59%	SEI Investments Company	366,422	€244.1m	-0.48%	0.23%

Company Analysis and Financial Data Status

Data	Last Updated (UTC time)
Company Analysis	2026/04/24 08:05
End of Day Share Price	2026/04/24 00:00
Earnings	2025/12/31
Annual Earnings	2025/12/31

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

Package	Data	Timeframe	Example US Source ^*
Company Financials	10 years	Income statement Cash flow statement Balance sheet	SEC Form 10-K SEC Form 10-Q
Analyst Consensus Estimates	+3 years	Forecast financials Analyst price targets	Analyst Research Reports Blue Matrix
Market Prices	30 years	Stock prices Dividends, Splits and Actions	ICE Market Data SEC Form S-1
Ownership	10 years	Top shareholders Insider trading	SEC Form 4 SEC Form 13D
Management	10 years	Leadership team Board of directors	SEC Form 10-K SEC Form DEF 14A
Key Developments	10 years	Company announcements	SEC Form 8-K

^* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the world class team who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.

Analyst Sources

argenx SE is covered by 55 analysts. 29 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

Analyst	Institution
null null	Baird
Colleen Kusy	Baird
Joel Beatty	Baird