argenx SE (ARGX)
Nasdaq: ARGX · Biological Products, (No Diagnostic Substances) · filing with the SEC since 2017
Who owns argenx SE
As filed with the SECHolders of 5% or more
1
Fmr LLC holds 8.7% of COMMON STOCK, as its SCHEDULE 13G/A filed May 6, 2026 says.
Directors and officers
0
report now, of 0 people on the record since . Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 1 named at left.
Holders of 5% or moreshare of the class, as filed
Fmr LLC
SCHEDULE 13G/A · filed May 6, 2026 · COMMON STOCK · 10% in Feb 12, 2025
T. Rowe Price Associates, Inc.
SCHEDULE 13G/A · filed Aug 14, 2026 · ADR · reported falling below 5%, from 6% in Nov 14, 2025
Artisan Partners Asset Management Inc.
SCHEDULE 13G/A · filed Aug 12, 2025 · American Depositary Shares · reported falling below 5%
What ARGX reports owning in othersstakes of 5% or more, and other ties
argenx SE reports no stake in another company in the record.
Insider tradesForm 4
0sales
0purchases
0sales on a scheduled plan
0people selling
$0sold, in dollars
$0bought, in dollars
Open-market trades on Form 4 from Sep 30, 2025 to Sep 30, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
No open-market trade is on the record for these years.
Dollars as filed, summed by the transaction date.
People who traded in the window
No one on the roster filed an open-market trade in the window.