Argenx SE
ARGX- Exchange
- Nasdaq
- Industry
- Biological Products, (No Diagnostic Substances)
- SEC CIK
- 0001697862
No open-market purchases or sales by Argenx SE insiders were filed in the last 90 days; 510 institutions reported holding it in 13F filings for Q2 2026, worth $26.1B in total; no superinvestor holds it.
13F holders, Q4 2025
Institutional positions in Argenx SE as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 510
- +48 vs. Q3 2025
- Shares held
- 29.7M
- −625.4K (−2.1%) vs. Q3 2025
- Total value
- $25.0B
- +$2.60B (+11.6%) vs. Q3 2025
- New holders
- 100
- 175 more added
- Sold out
- 52
- 167 more reduced
8 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ARGX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 510 | $26.1B |
| Q1 2026 | 478 | $21.1B |
| Q4 2025 | 510 | $25.0B |
| Q3 2025 | 470 | $22.5B |
| Q2 2025 | 439 | $17.7B |
| Q1 2025 | 448 | $19.7B |
| Q4 2024 | 397 | $21.0B |
| Q3 2024 | 358 | $19.0B |
| Q2 2024 | 336 | $14.7B |
| Q1 2024 | 328 | $13.4B |
| Q4 2023 | 346 | $12.5B |
| Q3 2023 | 341 | $15.9B |
| Q2 2023 | 290 | $12.0B |
| Q1 2023 | 272 | $11.6B |
| Q4 2022 | 271 | $11.6B |
| Q3 2022 | 255 | $11.2B |
| Q2 2022 | 232 | $12.4B |
| Q1 2022 | 199 | $10.2B |
| Q4 2021 | 208 | $10.1B |
| Q3 2021 | 182 | $8.57B |
| Q2 2021 | 177 | $8.57B |
| Q1 2021 | 191 | $7.84B |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Argenx SE; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Morgan Stanley | 518,852 | $436.3M | 0.03% | +83,746+19.2% | Added |
| RTW Investments, LP | 673,497 | $566.4M | 5.67% | 00.0% | Unchanged |
| Wellington Management Group LLP | 679,236 | $571.2M | 0.10% | −50,750−7.0% | Reduced |
| BlackRock, Inc. | 735,598 | $618.6M | 0.01% | +211,797+40.4% | Added |
| Avoro Capital Advisors LLC | 990,000 | $832.5M | 8.18% | 00.0% | Unchanged |
| Artisan Partners Limited Partnership | 1,756,942 | $1.48B | 2.26% | −429,568−19.6% | Reduced |
| Capital World Investors | 1,916,234 | $1.61B | 0.22% | −43,270−2.2% | Reduced |
| Janus Henderson Group PLC | 2,458,164 | $2.06B | 0.92% | −117,087−4.5% | Reduced |
| Price T Rowe Associates Inc | 3,362,324 | $2.83B | 0.30% | −278,085−7.6% | Reduced |
| FMR LLC | 5,592,319 | $4.70B | 0.24% | −100,027−1.8% | Reduced |
| Alkeon Capital Management LLC | 0 | $0 | 0.00% | −175,000−100.0% | Sold out |
| Caisse de Depot Et Placement du Quebec | 0 | $0 | 0.00% | −73,595−100.0% | Sold out |
| HSBC Holdings PLC | 0 | $0 | 0.00% | −25,749−100.0% | Sold out |
| Mediolanum International Funds Ltd | 0 | $0 | 0.00% | −14,339−100.0% | Sold out |
| StemPoint Capital LP | 0 | $0 | 0.00% | −12,465−100.0% | Sold out |
| Iron Triangle Partners LP | 0 | $0 | 0.00% | −9,900−100.0% | Sold out |
| Ikarian Capital, LLC | 0 | $0 | 0.00% | −5,942−100.0% | Sold out |
| Prosight Management, LP | 0 | $0 | 0.00% | −3,300−100.0% | Sold out |
| Mirabella Financial Services LLP | 0 | $0 | 0.00% | −2,976−100.0% | Sold out |
| Bayesian Capital Management, LP | 0 | $0 | 0.00% | −2,920−100.0% | Sold out |
| CenterBook Partners LP | 0 | $0 | 0.00% | −2,823−100.0% | Sold out |
| Evolutionary Tree Capital Management, LLC | 0 | $0 | 0.00% | −2,600−100.0% | Sold out |
| Boothbay Fund Management, LLC | 0 | $0 | 0.00% | −2,321−100.0% | Sold out |
| Tema ETFs LLC | 0 | $0 | 0.00% | −2,031−100.0% | Sold out |
| SIH Partners, LLLP | 0 | $0 | 0.00% | −1,853−100.0% | Sold out |
| Capital International Sarl | 0 | $0 | 0.00% | −1,849−100.0% | Sold out |
| Sanders Morris Harris LLC | 0 | $0 | 0.00% | −1,830−100.0% | Sold out |
| Omers Administration Corp | 0 | $0 | 0.00% | −1,700−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −1,525−100.0% | Sold out |
| Loomis Sayles & Co L P | 0 | $0 | 0.00% | −1,441−100.0% | Sold out |
| Capital International Ltd | 0 | $0 | 0.00% | −1,088−100.0% | Sold out |
| Brevan Howard Capital Management LP | 0 | $0 | 0.00% | −998−100.0% | Sold out |
| D.A. Davidson & Co. | 0 | $0 | 0.00% | −899−100.0% | Sold out |
| Cynosure Management, LLC | 0 | $0 | 0.00% | −802−100.0% | Sold out |
| TownSquare Capital, LLC | 0 | $0 | 0.00% | −720−100.0% | Sold out |
| Flow Traders U.S. LLC | 0 | $0 | 0.00% | −706−100.0% | Sold out |
| Beirne Wealth Consulting Services, LLC | 0 | $0 | 0.00% | −686−100.0% | Sold out |
| Capital International Inc | 0 | $0 | 0.00% | −624−100.0% | Sold out |
| Integrated Wealth Concepts LLC | 0 | $0 | 0.00% | −609−100.0% | Sold out |
| Arrowpoint Investment Partners (Singapore) Pte. Ltd. | 0 | $0 | 0.00% | −486−100.0% | Sold out |
| Pitcairn Co | 0 | $0 | 0.00% | −354−100.0% | Sold out |
| Axxcess Wealth Management, LLC | 0 | $0 | 0.00% | −335−100.0% | Sold out |
| Blue Barn Wealth, LLC | 0 | $0 | 0.00% | −322−100.0% | Sold out |
| BBR Partners, LLC | 0 | $0 | 0.00% | −290−100.0% | Sold out |
| Summit Trail Advisors, LLC | 0 | $0 | 0.00% | −286−100.0% | Sold out |
| Peregrine Capital Management LLC | 0 | $0 | 0.00% | −239−100.0% | Sold out |
| Mather Group, LLC. | 0 | $0 | 0.00% | −68−100.0% | Sold out |
| BIT Capital GmbH | 0 | $0 | 0.00% | −50−100.0% | Sold out |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −30−100.0% | Sold out |
| TFC Financial Management | 0 | $0 | 0.00% | −19−100.0% | Sold out |
| Webster Bank, N. A. | 0 | $0 | 0.00% | −9−100.0% | Sold out |
| Wealthspire Advisors, LLC | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| Marshall & Sterling Wealth Advisors Inc. | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| Montag A & Associates Inc | 0 | $0 | 0.00% | −4−100.0% | Sold out |
| Salem Investment Counselors Inc | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| Grey Fox Wealth Advisors, LLC | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| Bare Financial Services, Inc | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| Palisade Asset Management, LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Larson Financial Group LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Imprint Wealth LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| PEAK6 LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Johnson Investment Counsel Inc | 0 | $0 | 0.00% | −8−100.0% | Sold out |
| Pinebridge Investments, L.P. | – | – | – | – | Not filed |
| AXA Investment Managers S.A. | – | – | – | – | Not filed |
| Thematics Asset Management | – | – | – | – | Not filed |
| EFG Asset Management (North America) Corp. | – | – | – | – | Not filed |
| Wetherby Asset Management Inc | – | – | – | – | Not filed |
| Glenmede Investment Management, LP | – | – | – | – | Not filed |
| Binnacle Investments Inc | – | – | – | – | Not filed |
| Hemington Wealth Management | – | – | – | – | Not filed |