Argenx SE - ADRARGX
13F holders, Q1 2026 (March 31)477holders −32
57new positions
88sold out
6famous investors
$731.61avg. 13F price*
At the end of Q1 2026, 477 institutions reported holding Argenx SE - ADR (ARGX) in their 13F filings, down 32 from Q4 2025. 57 opened new positions and 88 sold out. The largest holders were FMR LLC ($3.6B), T. Rowe Price Associates Inc. ($2.5B) and Janus Henderson Group PLC ($1.8B). 6 famous investors held it, including Ron Baron (0.3% of Baron Capital (BAMCO)'s portfolio), Ken Griffin (0.1% of Citadel Advisors's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Argenx SE - ADR
- CUSIP
- 04016X101
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 57 | $144.5M |
| Exits | 88 | $446.9M |
All 13F filers, Q4 2025 → Q1 2026: 2,182,607 shares bought and 3,002,550 shares sold, net −819,943 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 477 holders
| FMR LLC | 0.19% | Reduce -10.8% | 4,991,034 | $3.6B |
| T. Rowe Price Associates Inc. | 0.29% | Add +0.4% | 3,374,955 | $2.5B |
| Janus Henderson Group PLC | 0.88% | Add +3.4% | 2,541,732 | $1.8B |
| Capital World Investors | 0.23% | Add +17.7% | 2,256,216 | $1.6B |
| Artisan Partners Limited Partnership | 1.75% | Reduce -16.4% | 1,467,982 | $1.1B |
| Wellington Management Group LLP | 0.14% | Add +50.4% | 1,021,457 | $745.9M |
| Avoro Capital Advisors LLC | 7.19% | Add +1.0% | 1,000,000 | $730.3M |
| BlackRock, Inc. | 0.01% | Add +9.9% | 808,337 | $590.3M |
| RTW Investments, LP | 5.16% | Add +5.3% | 709,446 | $518.1M |
| Invesco Ltd. | 0.04% | Add +42.8% | 594,697 | $434.3M |
| Morgan Stanley | 0.02% | Add +8.1% | 560,711 | $409.5M |
| Alliancebernstein L.P. | 0.12% | Add +2.0% | 422,304 | $355.1M |
| Bank of America Corp. | 0.02% | Reduce -0.2% | 400,117 | $292.2M |
| Sands Capital Management, LLC | 0.97% | Reduce -4.7% | 340,285 | $248.5M |
| Bellevue Group AG | 5.44% | Reduce -32.2% | 313,000 | $228.6M |
| Sei Investments Co. | 0.19% | Reduce -13.2% | 286,966 | $209.6M |
| William Blair Investment Management, LLC | 0.64% | Add +19.0% | 266,067 | $194.4M |
| Jennison Associates LLC | 0.12% | Add +3.4% | 237,468 | $173.4M |
| Franklin Resources Inc. | 0.04% | Reduce -1.8% | 233,493 | $170.5M |
| Goldman Sachs Group Inc. | 0.02% | Add +38.7% | 231,985 | $169.4M |
| Clearbridge Investments, LLC | 0.15% | Reduce -55.0% | 231,356 | $168.9M |
| Citadel Advisors | 0.12% | Reduce -37.5% | 219,126 | $160.0M |
| Fiera Capital Corp | 0.54% | Reduce -3.9% | 217,198 | $158.6M |
| Ameriprise Financial Inc. | 0.04% | Add +15.4% | 215,910 | $157.7M |
| Allspring Global Investments Holdings, LLC | 0.22% | Add +1.5% | 175,311 | $130.3M |
| BNP Paribas Financial Markets | 0.09% | Add +151.4% | 177,836 | $129.9M |
| American Century Companies Inc. | 0.07% | Reduce -21.4% | 173,700 | $126.8M |
| Checkpoint Capital L.P. | 40.10% | Add +7.8% | 153,000 | $111.7M |
| Lord, Abbett & Co. LLC | 0.38% | Reduce -25.4% | 152,083 | $111.1M |
| Legal & General Group Plc | 0.03% | Add +4.5% | 150,850 | $110.2M |
| Pictet Asset Management Holding SA | 0.11% | Reduce -3.2% | 148,306 | $108.0M |
| Deutsche Bank AG | 0.03% | Add +3.5% | 139,381 | $101.8M |
| Baron Capital (BAMCO) | 0.31% | Reduce -9.8% | 138,648 | $101.2M |
| Orbimed Advisors LLC | 2.26% | Reduce -6.2% | 136,900 | $100.0M |
| Lazard Asset Management LLC | 0.16% | Add +0.2% | 133,347 | $97.4M |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 0.11% | Add +11.9% | 129,147 | $94.3M |
| Eventide Asset Management, LLC | 1.52% | Add +3.7% | 125,657 | $91.7M |
| Agf Management Ltd. | 0.41% | Add +0.3% | 125,069 | $91.3M |
| Two Sigma Investments, LP | 0.07% | Reduce -57.8% | 109,121 | $79.7M |
| First Trust Advisors LP | 0.06% | Add +98.9% | 107,195 | $78.3M |
| Pinebridge Investments LLC | 0.64% | Add +44.1% | 103,812 | $75.8M |
| Rock Springs Capital Management LP | 4.24% | Reduce -4.6% | 98,500 | $71.9M |
| Federated Hermes, Inc. | 0.11% | Reduce -10.8% | 95,253 | $69.6M |
| Adage Capital Partners Gp, L.L.C. | 0.10% | New | 90,000 | $65.7M |
| Bank of Montreal | 0.03% | Add +421.1% | 85,333 | $62.3M |
| Braidwell LP | 2.36% | Add +173.9% | 84,939 | $62.0M |
| 1832 Asset Management L.P. | 0.08% | Reduce -23.9% | 84,200 | $61.5M |
| TimesSquare Capital Management, LLC | 1.03% | Reduce -23.4% | 83,117 | $60.7M |
| Aberdeen Group plc | 0.10% | Add +56.9% | 82,106 | $60.0M |
| TD Asset Management Inc | 0.05% | Reduce -20.4% | 80,824 | $59.0M |
| Eagle Health Investments LP | 11.70% | Add +21.7% | 76,336 | $55.7M |
| Public Sector Pension Investment Board | 0.17% | Add +100.3% | 73,300 | $53.5M |
| Millennium Management | 0.04% | Add +19.7% | 72,365 | $52.8M |
| Ensign Peak Advisors, Inc | 0.10% | Reduce -20.8% | 71,598 | $52.3M |
| PGGM Investments | 0.92% | Add +30.4% | 71,514 | $52.2M |
| Nuveen, LLC | 0.01% | No change | 66,241 | $48.4M |
| Bessemer Group Inc. | 0.07% | Add +2.7% | 64,251 | $46.9M |
| Amundi | 0.01% | Add +44.6% | 61,433 | $44.9M |
| Envestnet Asset Management Inc. | 0.01% | Reduce -23.2% | 61,418 | $44.9M |
| Life Cycle Investment Partners Ltd | 0.27% | Add +28.5% | 58,867 | $43.0M |
| Northern Trust Corp. | 0.01% | Reduce -8.6% | 58,706 | $42.9M |
| Nomura Asset Management International Inc. | 0.07% | Add +28.8% | 58,374 | $42.6M |
| Handelsbanken Fonder AB | 0.13% | Add +4.3% | 54,926 | $40.1M |
| Candriam S.C.A. | 0.21% | Add +11.1% | 54,148 | $39.5M |
| D. E. Shaw & Co. | 0.03% | Add +14.5% | 52,122 | $38.1M |
| Manufacturers Life Insurance Company, The | 0.03% | Reduce -14.1% | 49,330 | $36.0M |
| Nomura Asset Management Co. Ltd. | 0.09% | Reduce -0.1% | 49,306 | $36.0M |
| Van Eck Associates Corp. | 0.02% | Add +17.0% | 40,397 | $29.5M |
| New York State Common Retirement Fund | 0.04% | Reduce -10.4% | 39,437 | $28.8M |
| Dimensional Fund Advisors LP | 0.01% | Add +5.4% | 38,794 | $28.3M |
| Jane Street Group, LLC | 0.03% | Add +34.9% | 38,438 | $28.1M |
| Wells Fargo & Company | 0.01% | Reduce -29.9% | 38,104 | $27.8M |
| Raymond James Financial Inc. | 0.01% | Reduce -36.0% | 36,802 | $26.9M |
| Patient Square Capital LP | 4.76% | Add +41.2% | 36,718 | $26.8M |
| Davern Capital Partners, LP | 7.02% | Reduce -1.8% | 35,045 | $25.6M |
| Royal Bank of Canada | 0.00% | Reduce -7.7% | 32,917 | $24.0M |
| Victory Capital Management Inc. | 0.02% | Reduce -4.7% | 32,255 | $23.6M |
| UBS Group AG | 0.00% | Reduce -47.6% | 31,647 | $23.1M |
| Tri Locum Partners LP | 3.24% | Reduce -16.0% | 31,635 | $23.1M |
| Jefferies Financial Group Inc. | 0.28% | Add +0.0% | 30,005 | $21.9M |
| Hudson Bay Capital Management LP | 0.15% | Add +37.5% | 30,000 | $21.9M |
| Artia Global Partners LP | 4.90% | Reduce -54.0% | 29,739 | $21.7M |
| Perpetual Ltd | 0.32% | Reduce -8.4% | 28,359 | $20.7M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +27.9% | 27,506 | $20.1M |
| Jones Hill Capital LP | 4.07% | — | 25,995 | $19.0M |
| Qube Research & Technologies Ltd | 0.03% | Add +13.7% | 25,536 | $18.6M |
| Baker Bros. Advisors LP | 0.11% | No change | 25,174 | $18.4M |
| Oddo BHF Asset Management Sas | 0.72% | Add +6.5% | 25,009 | $18.3M |
| Geode Capital Management, LLC | 0.00% | Reduce -0.5% | 23,569 | $17.2M |
| LMR Partners LLP | 0.20% | Add +517.1% | 23,488 | $17.2M |
| LPL Financial LLC | 0.00% | Reduce -9.4% | 23,247 | $17.0M |
| Voloridge Investment Management, LLC | 0.07% | Add +60.5% | 22,651 | $16.5M |
| Blair William & Co. | 0.05% | Reduce -14.9% | 22,407 | $16.4M |
| Natixis Advisors, LLC | 0.02% | Reduce -9.4% | 20,380 | $14.9M |
| HSBC Holdings PLC | 0.01% | New | 20,379 | $14.9M |
| Schroder Investment Management Group | 0.01% | Add +82.0% | 21,023 | $14.8M |
| Mirova | 0.59% | New | 19,833 | $14.5M |
| HRT Financial LP | 0.03% | Reduce -4.7% | 18,754 | $13.7M |
| Squarepoint Ops LLC | 0.03% | Reduce -33.8% | 18,679 | $13.6M |
| Bank of New York Mellon Corp | 0.00% | Add +3.8% | 17,183 | $12.5M |
"% of holder's portfolio" is ARGX's weight in each manager's 13F, not the share of Argenx SE - ADR the manager owns.