Security record · archived quarter
ARGX
argenx SE · Healthcare · Biotechnology
118Tracked holders
0Δ holders
23.58MShares held
$17.26BReported value
+7New positions
−7Exits
Momentum inputs (comparable managers): holder breadth 0.0% · share flow -2.3% · net new positions 0.0% — formula
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 119 | +5 | 20.56M | $18.99B | +10 | −7 |
| Q1 2026 | 118 | 0 | 23.58M | $17.26B | +7 | −7 |
| Q4 2025 | 117 | +1 | 24.12M | $20.07B | +1 | — |
| Q3 2025 | 16 | -2 | 14.76M | $10.89B | — | −2 |
| Q2 2025 | 15 | 0 | 15.30M | $8.43B | — | — |
| Q1 2025 | 13 | +1 | 9.21M | $5.45B | +2 | −1 |
| Q4 2024 | 12 | +2 | 9.05M | $5.57B | +2 | — |
| Q3 2024 | 9 | -1 | 9.09M | $4.93B | — | −1 |
| Q2 2024 | 10 | — | 8.59M | $3.70B | — | — |
Who holds it · Q1 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Fidelity (FMR) ✦ | 4.99M | -10.8% | $3.64B | 0.2% | ▼ Trim | 4 | SEC ↗ ×5 |
| 2 | T. Rowe Price ✦ | 3.37M | +0.4% | $2.46B | 0.3% | ▲ Add | 8 | SEC ↗ ×2 |
| 3 | Janus Henderson Group Plc | 2.54M | +3.4% | $1.85B | 0.9% | ▲ Add | 2 | SEC ↗ ×6 |
| 4 | Capital World Investors ✦ | 2.26M | +17.7% | $1.65B | 0.2% | ▲ Add | 8 | SEC ↗ |
| 5 | Artisan Partners Limited Partnership | 1.47M | -16.4% | $1.07B | 1.7% | ▼ Trim | 2 | SEC ↗ |
| 6 | Wellington Management ✦ | 1.02M | +50.4% | $745.92M | 0.1% | ▲ Add | 8 | SEC ↗ ×9 |
| 7 | BlackRock ✦ (passive) | 808.34K | +9.9% | $590.29M | 0.0% | ▲ Add | 4 | SEC ↗ ×12 |
| 8 | Invesco Ltd. | 594.70K | +42.8% | $434.28M | 0.0% | ▲ Add | 2 | SEC ↗ ×8 |
| 9 | Morgan Stanley ✦ | 560.71K | +8.1% | $409.46M | 0.0% | ▲ Add | 3 | SEC ↗ ×13 |
| 10 | Alliancebernstein L.P. | 422.30K | +2.0% | $355.14M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 11 | Bank Of America Corp /De/ | 400.12K | -0.2% | $292.19M | 0.0% | ▼ Trim | 2 | SEC ↗ ×7 |
| 12 | Sei Investments Co | 286.97K | -13.2% | $209.56M | 0.2% | ▼ Trim | 2 | SEC ↗ ×2 |
| 13 | Jennison Associates Llc | 237.47K | +3.4% | $173.41M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 14 | Franklin Resources Inc | 233.49K | -1.8% | $170.51M | 0.0% | ▼ Trim | 2 | SEC ↗ ×8 |
| 15 | Goldman Sachs Group ✦ | 231.99K | +38.7% | $169.41M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 16 | Clearbridge Investments, LLC | 231.36K | -55.0% | $168.95M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 17 | Citadel Advisors ✦ | 219.13K | -37.5% | $160.02M | 0.1% | ▼ Trim | 8 | SEC ↗ ×2 |
| 18 | Ameriprise Financial Inc | 215.91K | +15.4% | $157.67M | 0.0% | ▲ Add | 2 | SEC ↗ ×5 |
| 19 | Allspring Global Investments… | 175.31K | +1.5% | $130.28M | 0.2% | ▲ Add | 2 | SEC ↗ ×3 |
| 20 | Bnp Paribas Financial Markets | 177.84K | +151.4% | $129.86M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 21 | American Century Companies Inc | 173.70K | -21.4% | $126.85M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 22 | Legal & General Group Plc | 150.85K | +4.5% | $110.16M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 23 | Pictet Asset Management Holding SA | 148.31K | -3.2% | $108.02M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 24 | Deutsche Bank Ag\ | 139.38K | +3.5% | $101.78M | 0.0% | ▲ Add | 2 | SEC ↗ ×5 |
| 25 | Bamco Inc /Ny/ | 138.65K | -9.8% | $101.25M | 0.3% | ▼ Trim | 2 | SEC ↗ |
| 26 | Lazard Asset Management Llc | 133.35K | +0.2% | $97.38M | 0.2% | ▲ Add | 2 | SEC ↗ ×2 |
| 27 | BNP Paribas Asset Management… | 129.15K | +11.9% | $94.31M | 0.1% | ▲ Add | 2 | SEC ↗ ×3 |
| 28 | Two Sigma Investments ✦ | 109.12K | -57.8% | $79.69M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 29 | First Trust Advisors Lp | 107.19K | +98.9% | $78.28M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 30 | Federated Hermes, Inc. | 95.25K | -10.8% | $69.56M | 0.1% | ▼ Trim | 2 | SEC ↗ ×2 |
| 31 | Adage Capital Partners ✦ | 90.00K | New | $65.72M | 0.1% | New | 1 | SEC ↗ |
| 32 | Bank Of Montreal /Can/ | 85.33K | +421.1% | $62.31M | 0.0% | ▲ Add | 2 | SEC ↗ ×5 |
| 33 | 1832 Asset Management L.P. | 84.20K | -23.9% | $61.49M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 34 | Aberdeen Group plc | 82.11K | +56.9% | $59.96M | 0.1% | ▲ Add | 2 | SEC ↗ ×2 |
| 35 | Td Asset Management Inc | 80.82K | -20.4% | $59.02M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 36 | Millennium Management ✦ | 72.36K | +19.7% | $52.84M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 37 | Ensign Peak Advisors, Inc | 71.60K | -20.8% | $52.28M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 38 | Nuveen, LLC | 66.24K | 0.0% | $48.37M | 0.0% | Held | 2 | SEC ↗ ×2 |
| 39 | Amundi | 61.43K | +44.6% | $44.86M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 40 | Envestnet Asset Management Inc | 61.42K | -23.2% | $44.85M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 41 | Northern Trust Corp | 58.71K | -8.6% | $42.87M | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 42 | Nomura Asset Management… | 58.37K | +28.8% | $42.63M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 43 | D. E. Shaw & Co. ✦ | 52.12K | +14.5% | $38.06M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 44 | Manufacturers Life Insurance… | 49.33K | -14.1% | $36.02M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 45 | Nomura Asset Management Co Ltd | 49.31K | -0.1% | $36.01M | 0.1% | ▼ Trim | 2 | SEC ↗ ×5 |
| 46 | New York State Common Retirement… | 39.44K | -10.4% | $28.80M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 47 | Dimensional Fund Advisors Lp | 38.79K | +5.4% | $28.33M | 0.0% | ▲ Add | 2 | SEC ↗ ×4 |
| 48 | Jane Street Group, Llc | 38.44K | +34.9% | $28.07M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 49 | Wells Fargo & Company/Mn | 38.10K | -29.9% | $27.83M | 0.0% | ▼ Trim | 2 | SEC ↗ ×4 |
| 50 | Raymond James Financial Inc | 36.80K | -36.0% | $26.87M | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 51 | Royal Bank Of Canada | 32.92K | -7.7% | $24.04M | 0.0% | ▼ Trim | 2 | SEC ↗ ×7 |
| 52 | Victory Capital Management Inc | 32.26K | -4.7% | $23.55M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 53 | UBS Group AG | 31.65K | -47.6% | $23.11M | 0.0% | ▼ Trim | 2 | SEC ↗ ×4 |
| 54 | UBS AM, a distinct business unit of… | 27.51K | +27.9% | $20.09M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 55 | Qube Research & Technologies Ltd | 25.54K | +13.7% | $18.65M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 56 | Geode Capital Management ✦ (passive) | 23.57K | -0.5% | $17.21M | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 57 | LMR Partners LLP | 23.49K | +517.1% | $17.15M | 0.2% | ▲ Add | 2 | SEC ↗ |
| 58 | LPL Financial LLC | 23.25K | -9.4% | $16.98M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 59 | Blair William & Co/Il | 22.41K | -14.9% | $16.36M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 60 | Hsbc Holdings Plc | 20.38K | New | $14.88M | 0.0% | New | 1 | SEC ↗ |
| 61 | Schroder Investment Management Group | 21.02K | — | $14.81M | 0.0% | n/c | 1 | SEC ↗ |
| 62 | Hrt Financial Lp | 18.75K | -4.7% | $13.70M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 63 | Squarepoint Ops LLC | 18.68K | -33.8% | $13.64M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 64 | Bank of New York Mellon Corp | 17.18K | +3.8% | $12.55M | 0.0% | ▲ Add | 2 | SEC ↗ ×7 |
| 65 | Jones Financial Companies Lllp | 16.81K | +2923.2% | $11.62M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 66 | Assenagon Asset Management S.A. | 14.79K | -39.3% | $10.80M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 67 | Allianz Asset Management GmbH | 14.40K | +379.9% | $10.52M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 68 | Susquehanna International Group, Llp | 14.39K | -39.9% | $10.51M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 69 | Balyasny Asset Management L.P. | 13.11K | -68.7% | $9.57M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 70 | JPMorgan Chase ✦ | 13.01K | -7.1% | $9.16M | 0.0% | ▼ Trim | 3 | SEC ↗ ×12 |
| 71 | Quantinno Capital Management LP | 11.15K | +11.1% | $8.14M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 72 | Optiver Holding B.V. | 10.11K | +907.0% | $7.38M | 0.3% | ▲ Add | 2 | SEC ↗ |
| 73 | Charles Schwab Investment… | 9.40K | +14.1% | $6.87M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 74 | Assetmark, Inc | 9.28K | -5.7% | $6.77M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 75 | Citigroup Inc | 9.08K | -17.1% | $6.63M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 76 | Creative Planning | 8.24K | -5.4% | $6.02M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 77 | Stifel Financial Corp | 8.07K | -15.7% | $5.89M | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 78 | Mackenzie Financial Corp | 7.44K | +19.4% | $5.43M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 79 | Cetera Investment Advisers | 6.73K | -26.8% | $4.92M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 80 | Mml Investors Services, Llc | 6.01K | -49.6% | $4.39M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 81 | Mitsubishi UFJ Asset Management… | 5.55K | 0.0% | $4.05M | 0.0% | Held | 2 | SEC ↗ |
| 82 | Voya Investment Management Llc | 5.54K | -96.7% | $4.05M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 83 | Barclays Plc | 5.50K | -47.7% | $4.02M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 84 | HighTower Advisors, LLC | 5.30K | -12.8% | $3.87M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 85 | State Street Global Advisors ✦ (passive) | 5.11K | +8.0% | $3.73M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 86 | Focus Partners Wealth | 4.81K | +38.2% | $3.51M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 87 | Truist Financial Corp | 3.88K | -14.2% | $2.83M | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 88 | Pnc Financial Services Group, Inc. | 3.80K | +17.7% | $2.77M | 0.0% | ▲ Add | 2 | SEC ↗ ×6 |
| 89 | Rhumbline Advisers | 3.75K | +105.1% | $2.74M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 90 | Mariner, LLC | 3.62K | -3.6% | $2.64M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 91 | DZ BANK AG Deutsche Zentral… | 3.60K | New | $2.63M | 0.0% | New | 1 | SEC ↗ |
| 92 | Us Bancorp \De\ | 2.82K | -55.8% | $2.06M | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 93 | Cerity Partners LLC | 2.79K | -24.0% | $2.04M | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 94 | Principal Financial Group Inc | 2.67K | +1.0% | $1.95M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 95 | AQR Capital Management ✦ | 2.53K | +5.4% | $1.85M | 0.0% | ▲ Add | 6 | SEC ↗ ×4 |
| 96 | Corient Private Wealth LP | 2.25K | -99.1% | $1.63M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 97 | Simplex Trading, Llc | 1.77K | +136.1% | $1.29M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 98 | IMC-Chicago, LLC | 1.75K | New | $1.28M | 0.0% | New | 1 | SEC ↗ |
| 99 | Daiwa Securities Group Inc. | 1.61K | -4.0% | $1.18M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 100 | Loomis Sayles & Co L P | 1.57K | New | $1.15M | 0.0% | New | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Adage Capital Partners | $65.72M | 0.1% |
| Hsbc Holdings Plc | $14.88M | 0.0% |
| DZ BANK AG Deutsche Zentral… | $2.63M | 0.0% |
| IMC-Chicago, LLC | $1.28M | 0.0% |
| Loomis Sayles & Co L P | $1.15M | 0.0% |
Exited
| Marshall Wace | $11.36M | was 0.0% |
| Tudor Investment Corp Et Al | $1.81M | was 0.0% |
| Group One Trading Llc | $1.57M | was 0.0% |
| Nomura Holdings Inc | $254,808 | was 0.0% |
| Gotham Asset Management | $228,738 | was 0.0% |
| FIL Ltd | $63,912 | was 0.0% |
| Zurcher Kantonalbank (Zurich… | $10,932 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 472 holders, 28.81M shares, $18.26B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q1 2026 ·
Methodology ·
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