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, Q1 2026
Institutional positions in Argenx SE as of Mar 31, 2026. 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
- 478
- −26 vs. Q4 2025
- Shares held
- 28.8M
- −929.3K (−3.1%) vs. Q4 2025
- Total value
- $21.1B
- −$3.92B (−15.7%) vs. Q4 2025
- New holders
- 63
- 178 more added
- Sold out
- 89
- 172 more reduced
6 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding Argenx SE; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| FMR LLC | 4,991,034 | $3.64B | 0.19% | −601,285−10.8% | Reduced |
| Price T Rowe Associates Inc | 3,374,955 | $2.46B | 0.28% | +12,631+0.4% | Added |
| Janus Henderson Group PLC | 2,541,732 | $1.85B | 0.88% | +83,568+3.4% | Added |
| Capital World Investors | 2,256,216 | $1.65B | 0.22% | +339,982+17.7% | Added |
| Artisan Partners Limited Partnership | 1,467,982 | $1.07B | 1.75% | −288,960−16.4% | Reduced |
| Wellington Management Group LLP | 1,021,457 | $745.9M | 0.14% | +342,221+50.4% | Added |
| Avoro Capital Advisors LLC | 1,000,000 | $730.3M | 7.19% | +10,000+1.0% | Added |
| BlackRock, Inc. | 808,337 | $590.3M | 0.01% | +72,739+9.9% | Added |
| RTW Investments, LP | 709,446 | $518.1M | 5.16% | +35,949+5.3% | Added |
| Invesco Ltd. | 594,697 | $434.3M | 0.04% | +178,289+42.8% | Added |
| Morgan Stanley | 560,711 | $409.5M | 0.02% | +41,859+8.1% | Added |
| Alliancebernstein L.P. | 422,304 | $355.1M | 0.12% | +8,122+2.0% | Added |
| Bank of America Corp | 400,117 | $292.2M | 0.02% | −659−0.2% | Reduced |
| Sands Capital Management, LLC | 340,285 | $248.5M | 0.97% | −16,585−4.6% | Reduced |
| Bellevue Group AG | 313,000 | $228.6M | 5.44% | −148,854−32.2% | Reduced |
| SEI Investments Co | 286,966 | $209.6M | 0.19% | −43,540−13.2% | Reduced |
| William Blair Investment Management, LLC | 266,067 | $194.4M | 0.64% | +42,401+19.0% | Added |
| Jennison Associates LLC | 237,468 | $173.4M | 0.12% | +7,707+3.4% | Added |
| Franklin Resources Inc | 233,493 | $170.5M | 0.04% | −4,208−1.8% | Reduced |
| Goldman Sachs Group Inc | 231,985 | $169.4M | 0.02% | +64,779+38.7% | Added |
| Clearbridge Investments, LLC | 231,356 | $168.9M | 0.15% | −282,408−55.0% | Reduced |
| Citadel Advisors LLC | 219,126 | $160.0M | 0.11% | −131,725−37.5% | Reduced |
| Fiera Capital Corp | 217,198 | $158.6M | 0.54% | −8,773−3.9% | Reduced |
| Ameriprise Financial Inc | 215,910 | $157.7M | 0.04% | +28,771+15.4% | Added |
| Allspring Global Investments Holdings, LLC | 175,311 | $130.3M | 0.22% | +2,579+1.5% | Added |
| BNP Paribas Arbitrage, SA | 177,836 | $129.9M | 0.09% | +107,092+151.4% | Added |
| American Century Companies Inc | 173,700 | $126.8M | 0.07% | −47,348−21.4% | Reduced |
| Checkpoint Capital L.P. | 153,000 | $111.7M | 40.10% | +11,000+7.7% | Added |
| Lord, Abbett & Co. LLC | 152,083 | $111.1M | 0.36% | −51,781−25.4% | Reduced |
| Legal & General Group Plc | 150,850 | $110.2M | 0.03% | +6,495+4.5% | Added |
| Pictet Asset Management Holding SA | 148,306 | $108.0M | 0.11% | −4,905−3.2% | Reduced |
| Deutsche Bank AG | 139,381 | $101.8M | 0.03% | +4,671+3.5% | Added |
| Bamco Inc | 138,648 | $101.2M | 0.31% | −15,071−9.8% | Reduced |
| OrbiMed Advisors LLC | 136,900 | $100.0M | 2.27% | −9,100−6.2% | Reduced |
| Lazard Asset Management LLC | 133,347 | $97.4M | 0.16% | +317+0.2% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 129,147 | $94.3M | 0.11% | +13,789+12.0% | Added |
| Eventide Asset Management, LLC | 125,657 | $91.7M | 1.52% | +4,436+3.7% | Added |
| Agf Management Ltd | 125,069 | $91.3M | 0.41% | +378+0.3% | Added |
| Two Sigma Investments, LP | 109,121 | $79.7M | 0.07% | −149,435−57.8% | Reduced |
| First Trust Advisors LP | 107,195 | $78.3M | 0.06% | +53,293+98.9% | Added |
| Pinebridge Investments LLC | 103,812 | $75.8M | 0.64% | +31,772+44.1% | Added |
| Rock Springs Capital Management LP | 98,500 | $71.9M | 4.24% | −4,750−4.6% | Reduced |
| Federated Hermes, Inc. | 95,253 | $69.6M | 0.11% | −11,517−10.8% | Reduced |
| Adage Capital Partners GP, L.L.C. | 90,000 | $65.7M | 0.10% | +90,000 | New |
| Bank of Montreal | 85,333 | $62.3M | 0.03% | +68,956+421.1% | Added |
| Braidwell LP | 84,939 | $62.0M | 2.07% | +53,932+173.9% | Added |
| 1832 Asset Management L.P. | 84,200 | $61.5M | 0.08% | −26,500−23.9% | Reduced |
| TimesSquare Capital Management, LLC | 83,117 | $60.7M | 1.03% | −25,392−23.4% | Reduced |
| Standard Life Aberdeen plc | 82,106 | $60.0M | 0.10% | +29,759+56.8% | Added |
| TD Asset Management Inc | 80,824 | $59.0M | 0.05% | −20,699−20.4% | Reduced |
| Eagle Health Investments LP | 76,336 | $55.7M | 11.70% | +13,606+21.7% | Added |
| Public Sector Pension Investment Board | 73,300 | $53.5M | 0.17% | +36,700+100.3% | Added |
| Millennium Management LLC | 72,365 | $52.8M | 0.04% | +11,907+19.7% | Added |
| Ensign Peak Advisors, Inc | 71,598 | $52.3M | 0.10% | −18,854−20.8% | Reduced |
| PGGM Investments | 71,514 | $52.2M | 0.92% | +16,684+30.4% | Added |
| Nuveen, LLC | 66,241 | $48.4M | 0.01% | 00.0% | Unchanged |
| Bessemer Group Inc | 64,251 | $46.9M | 0.07% | +1,714+2.7% | Added |
| Amundi | 61,433 | $44.9M | 0.01% | +18,948+44.6% | Added |
| Envestnet Asset Management Inc | 61,418 | $44.9M | 0.01% | −18,571−23.2% | Reduced |
| Life Cycle Investment Partners Ltd | 58,867 | $43.0M | 0.27% | +13,041+28.5% | Added |
| Northern Trust Corp | 58,706 | $42.9M | 0.01% | −5,538−8.6% | Reduced |
| Nomura Asset Management International Inc. | 58,374 | $42.6M | 0.07% | +13,059+28.8% | Added |
| Handelsbanken Fonder AB | 54,926 | $40.1M | 0.13% | +2,248+4.3% | Added |
| Candriam Luxembourg S.C.A. | 54,148 | $39.5M | 0.21% | +5,407+11.1% | Added |
| D. E. Shaw & Co., Inc. | 52,122 | $38.1M | 0.03% | +6,589+14.5% | Added |
| Manufacturers Life Insurance Company, The | 49,330 | $36.0M | 0.03% | −8,078−14.1% | Reduced |
| Nomura Asset Management Co Ltd | 49,306 | $36.0M | 0.09% | −52−0.1% | Reduced |
| Van Eck Associates Corp | 40,397 | $29.5M | 0.02% | +5,862+17.0% | Added |
| New York State Common Retirement Fund | 39,437 | $28.8M | 0.04% | −4,590−10.4% | Reduced |
| Dimensional Fund Advisors LP | 38,794 | $28.3M | 0.01% | +1,977+5.4% | Added |
| Jane Street Group, LLC | 38,438 | $28.1M | 0.03% | +9,953+34.9% | Added |
| Wells Fargo & Company | 38,104 | $27.8M | 0.01% | −16,286−29.9% | Reduced |
| Raymond James Financial Inc | 36,802 | $26.9M | 0.01% | −20,687−36.0% | Reduced |
| Patient Square Capital LP | 36,718 | $26.8M | 4.76% | +10,718+41.2% | Added |
| Davern Capital Partners, LP | 35,045 | $25.6M | 7.02% | −640−1.8% | Reduced |
| Royal Bank of Canada | 32,917 | $24.0M | 0.00% | −2,743−7.7% | Reduced |
| Victory Capital Management Inc | 32,255 | $23.6M | 0.02% | −1,592−4.7% | Reduced |
| UBS Group AG | 31,647 | $23.1M | 0.00% | −28,737−47.6% | Reduced |
| Tri Locum Partners LP | 31,635 | $23.1M | 3.24% | −6,018−16.0% | Reduced |
| Jefferies Financial Group Inc. | 30,005 | $21.9M | 0.27% | +50.0% | Added |
| Hudson Bay Capital Management LP | 30,000 | $21.9M | 0.13% | +8,178+37.5% | Added |
| Artia Global Partners LP | 29,739 | $21.7M | 4.90% | −34,960−54.0% | Reduced |
| Perpetual Ltd | 28,359 | $20.7M | 0.32% | −2,591−8.4% | Reduced |
| UBS Asset Management Americas Inc | 27,506 | $20.1M | 0.00% | +6,001+27.9% | Added |
| Jones Hill Capital LP | 25,995 | $19.0M | 4.07% | +25,995 | New |
| Qube Research & Technologies Ltd | 25,536 | $18.6M | 0.03% | +3,085+13.7% | Added |
| Baker Bros. Advisors LP | 25,174 | $18.4M | 0.11% | 00.0% | Unchanged |
| Oddo BHF Asset Management SAS | 25,009 | $18.3M | 0.72% | +1,536+6.5% | Added |
| Geode Capital Management, LLC | 23,569 | $17.2M | 0.00% | −126−0.5% | Reduced |
| LMR Partners LLP | 23,488 | $17.2M | 0.16% | +19,682+517.1% | Added |
| LPL Financial LLC | 23,247 | $17.0M | 0.00% | −2,409−9.4% | Reduced |
| Voloridge Investment Management, LLC | 22,651 | $16.5M | 0.07% | +8,539+60.5% | Added |
| Blair William & Co | 22,407 | $16.4M | 0.05% | −3,933−14.9% | Reduced |
| Natixis Advisors, L.P. | 20,380 | $14.9M | 0.02% | −2,120−9.4% | Reduced |
| HSBC Holdings PLC | 20,379 | $14.9M | 0.01% | +20,379 | New |
| Schroder Investment Management Group | 21,023 | $14.8M | 0.01% | +9,471+82.0% | Added |
| Mirova | 19,833 | $14.5M | 0.59% | +19,833 | New |
| HRT Financial LP | 18,754 | $13.7M | 0.03% | −930−4.7% | Reduced |
| Squarepoint Ops LLC | 18,679 | $13.6M | 0.03% | −9,523−33.8% | Reduced |
| Bank of New York Mellon Corp | 17,183 | $12.5M | 0.00% | +634+3.8% | Added |