argenx ($ARGX) Insider Trading & Smart Money Activity

argenx SE · Biotechnology · Latest filing Oct 14, 2026

argenx SE ($ARGX) has 1 congress trade, 42 13F position changes and 5 analyst ratings on file.

Insider buyers (12 mo)
0
Insider sellers (12 mo)
0
Net insider $ (12 mo)
$0
Congress trades (12 mo)
1
13F moves on file
42
Analyst ratings on file
5

ARGX insider buying and selling by quarter

QuarterInsider buysInsider salesCongress buys / sales13F added / cut
Q1 2026 0 0 1 / 0 0 / 0
Q2 2026 0 0 0 / 0 27 / 15
Q3 2026 0 0 0 / 0 0 / 0
Q4 2026 0 0 0 / 0 0 / 0

Insider buys and sales count open-market trades only (Form 4 codes P and S). Grants, option exercises and tax withholding are left out.

All ARGX insider, congress, 13F and analyst activity

DateSourceWhoActionSharesValue / amount ΔOwn1W1M6MFilingStory
Analyst Wells Fargo Reiterates to Overweight PT $1,356 Read
Analyst Oppenheimer Reiterates to Outperform PT $1,038 Read
Analyst Evercore ISI Group Reiterates to Outperform PT $1,078 -0.7% Read
Analyst HC Wainwright Reiterates to buy PT $940 +5.7%0.0% Read
Analyst Morgan Stanley Reiterates to buy PT $1,180 +6.7%+7.7% Read
13F Wellington Management Group Added +342.22K sh $918.23M +0.9%+10.6% —
13F Wellington Management Group Added +342.22K sh $947.68M +0.9%+10.6% —
13F Two Sigma Investments Reduced -149.44K sh $98.09M +0.9%+10.6% —
13F Two Sigma Investments Reduced -149.44K sh $101.24M +0.9%+10.6% —
13F Rtw Investments Added +35.95K sh $658.20M +0.9%+10.6% Read
13F Optiver Holding B.V. Added +9.11K sh $9.09M +0.9%+10.6% —
13F Optiver Holding B.V. Added +9.11K sh $9.38M +0.9%+10.6% —
13F Lmr Partners Added +19.68K sh $21.11M +0.9%+10.6% —
13F Lmr Partners Added +19.68K sh $21.79M +0.9%+10.6% —
13F Janus Henderson Group Added +83.57K sh $2.28B +0.9%+10.6% —
13F Janus Henderson Group Added +83.57K sh $2.36B +0.9%+10.6% —
13F FMR Reduced -601.28K sh $4.49B +0.9%+10.6% —
13F FMR Reduced -601.28K sh $4.55B +0.9%+10.6% —
13F Avoro Capital Advisors Added +10K sh $927.77M +0.9%+10.6% Read
13F Ameriprise Financial Added +28.77K sh $194.09M +0.9%+10.6% —
13F Ameriprise Financial Added +28.77K sh $200.31M +0.9%+10.6% —
13F Alliancebernstein L.P. Added +8.12K sh $379.63M +0.9%+10.6% —
13F Alliancebernstein L.P. Added +8.12K sh $391.80M +0.9%+10.6% —
13F BNP Paribas Asset Management Holding S.A. Added +13.79K sh $116.10M -0.7%+7.5% —
13F BNP Paribas Asset Management Holding S.A. Added +13.79K sh $119.82M -0.7%+7.5% —
13F Sei Investments Reduced -43.54K sh $257.97M +0.2%+11.3% —
13F Sei Investments Reduced -43.54K sh $266.24M +0.2%+11.3% —
13F Hudson Bay Capital Management Added +8.18K sh $27.83M +0.2%+11.3% —
13F Artisan Partners Limited Partnership Reduced -288.96K sh $1.32B +0.2%+11.3% —
13F Artisan Partners Limited Partnership Reduced -288.96K sh $1.36B +0.2%+11.3% —
Congress Alan Armstrong Purchase $1,001 - $15,000 +6.2%+10.2%+38.0% —

Showing 31 of 48 filings (the latest 13F moves are capped at 25; see the institutions below).

1W / 1M / 6M = how ARGX moved from the trade or filing date.

Members of Congress trading ARGX

Institutions moving ARGX (13F)

Analyst ratings on ARGX

DateFirmActionRatingPrice target1W1M6MStory
Wells Fargo Reiterates Overweight $1,355 → $1,356 Read
Oppenheimer Reiterates Outperform $1,100 → $1,038 Read
Evercore ISI Group Reiterates Outperform $1,175 → $1,078 -0.7% Read
HC Wainwright Reiterates buy $940 +5.7%0.0% Read
Morgan Stanley Reiterates buy $1,180 +6.7%+7.7% Read

Frequently asked questions

Which members of Congress traded ARGX?

1 disclosed trade by Alan Armstrong. The latest was on Mar 30, 2026.

Which institutions changed their ARGX positions?

Recent 13F filers moving the stock include Wellington Management Group, Two Sigma Investments, Optiver Holding B.V., Lmr Partners and Janus Henderson Group.

Other biotechnology stocks

Data comes from public SEC Form 4 and 13F filings and STOCK Act disclosures. Dates are the trade or filing date reported. This page is for research only and is not investment advice.

Get trade alerts by text