Security record
ARGX
argenx SE · Healthcare · Biotechnology
121Tracked holders
+5Δ holders
20.63MShares held
$19.06BReported value
+10New positions
−5Exits
Momentum inputs (comparable managers):
holder breadth +4.3% ·
share flow -2.0% ·
net new positions +4.1%
— formula
Ownership fragmentation — more holders, smaller aggregate stake
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 121 | +5 | 20.63M | $19.06B | +10 | −5 |
| 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 · Q2 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Fidelity (FMR) ✦ | 5.23M | +4.8% | $4.85B | 0.2% | ▲ Add | 5 | SEC ↗ |
| 2 | Fidelity (FMR) ✦ | 5.23M | +4.8% | $4.85B | 0.2% | ▲ Add | 5 | SEC ↗ |
| 3 | Fidelity (FMR) ✦ | 5.23M | +4.8% | $4.85B | 0.2% | ▲ Add | 5 | SEC ↗ |
| 4 | Fidelity (FMR) ✦ | 5.23M | +4.8% | $4.85B | 0.2% | ▲ Add | 5 | SEC ↗ |
| 5 | Fidelity (FMR) ✦ | 5.23M | +4.8% | $4.85B | 0.2% | ▲ Add | 5 | SEC ↗ |
| 6 | Fidelity (FMR) ✦ | 5.23M | +4.8% | $4.85B | 0.2% | ▲ Add | 5 | SEC ↗ |
| 7 | T. Rowe Price ✦ | 2.68M | -20.6% | $2.48B | 0.2% | ▼ Trim | 9 | SEC ↗ |
| 8 | T. Rowe Price ✦ | 2.68M | -20.6% | $2.48B | 0.2% | ▼ Trim | 9 | SEC ↗ |
| 9 | Capital World Investors ✦ | 2.20M | -2.5% | $2.04B | 0.2% | ▼ Trim | 9 | SEC ↗ |
| 10 | Artisan Partners Limited Partnership | 1.51M | +2.8% | $1.40B | 2.3% | ▲ Add | 3 | SEC ↗ |
| 11 | Wellington Management ✦ | 930.55K | -8.9% | $863.33M | 0.1% | ▼ Trim | 9 | SEC ↗ |
| 12 | Wellington Management ✦ | 930.55K | -8.9% | $863.33M | 0.1% | ▼ Trim | 9 | SEC ↗ |
| 13 | Wellington Management ✦ | 930.55K | -8.9% | $863.33M | 0.1% | ▼ Trim | 9 | SEC ↗ |
| 14 | Wellington Management ✦ | 930.55K | -8.9% | $863.33M | 0.1% | ▼ Trim | 9 | SEC ↗ |
| 15 | Wellington Management ✦ | 930.55K | -8.9% | $863.33M | 0.1% | ▼ Trim | 9 | SEC ↗ |
| 16 | Wellington Management ✦ | 930.55K | -8.9% | $863.33M | 0.1% | ▼ Trim | 9 | SEC ↗ |
| 17 | Wellington Management ✦ | 930.55K | -8.9% | $863.33M | 0.1% | ▼ Trim | 9 | SEC ↗ |
| 18 | Wellington Management ✦ | 930.55K | -8.9% | $863.33M | 0.1% | ▼ Trim | 9 | SEC ↗ |
| 19 | Wellington Management ✦ | 930.55K | -8.9% | $863.33M | 0.1% | ▼ Trim | 9 | SEC ↗ |
| 20 | BlackRock ✦ (passive) | 777.24K | -3.9% | $721.10M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 21 | BlackRock ✦ (passive) | 777.24K | -3.9% | $721.10M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 22 | BlackRock ✦ (passive) | 777.24K | -3.9% | $721.10M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 23 | BlackRock ✦ (passive) | 777.24K | -3.9% | $721.10M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 24 | BlackRock ✦ (passive) | 777.24K | -3.9% | $721.10M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 25 | BlackRock ✦ (passive) | 777.24K | -3.9% | $721.10M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 26 | BlackRock ✦ (passive) | 777.24K | -3.9% | $721.10M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 27 | BlackRock ✦ (passive) | 777.24K | -3.9% | $721.10M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 28 | BlackRock ✦ (passive) | 777.24K | -3.9% | $721.10M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 29 | BlackRock ✦ (passive) | 777.24K | -3.9% | $721.10M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 30 | BlackRock ✦ (passive) | 777.24K | -3.9% | $721.10M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 31 | BlackRock ✦ (passive) | 777.24K | -3.9% | $721.10M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 32 | BlackRock ✦ (passive) | 777.24K | -3.9% | $721.10M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 33 | Morgan Stanley ✦ | 643.12K | +14.7% | $596.67M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 34 | Morgan Stanley ✦ | 643.12K | +14.7% | $596.67M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 35 | Morgan Stanley ✦ | 643.12K | +14.7% | $596.67M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 36 | Morgan Stanley ✦ | 643.12K | +14.7% | $596.67M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 37 | Morgan Stanley ✦ | 643.12K | +14.7% | $596.67M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 38 | Morgan Stanley ✦ | 643.12K | +14.7% | $596.67M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 39 | Morgan Stanley ✦ | 643.12K | +14.7% | $596.67M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 40 | Morgan Stanley ✦ | 643.12K | +14.7% | $596.67M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 41 | Morgan Stanley ✦ | 643.12K | +14.7% | $596.67M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 42 | Morgan Stanley ✦ | 643.12K | +14.7% | $596.67M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 43 | Morgan Stanley ✦ | 643.12K | +14.7% | $596.67M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 44 | Morgan Stanley ✦ | 643.12K | +14.7% | $596.67M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 45 | Morgan Stanley ✦ | 643.12K | +14.7% | $596.67M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 46 | Morgan Stanley ✦ | 643.12K | +14.7% | $596.67M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 47 | Morgan Stanley ✦ | 643.12K | +14.7% | $596.67M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 48 | Morgan Stanley ✦ | 643.12K | +14.7% | $596.67M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 49 | Invesco Ltd. | 443.99K | -25.3% | $411.92M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 50 | Invesco Ltd. | 443.99K | -25.3% | $411.92M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 51 | Invesco Ltd. | 443.99K | -25.3% | $411.92M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 52 | Invesco Ltd. | 443.99K | -25.3% | $411.92M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 53 | Invesco Ltd. | 443.99K | -25.3% | $411.92M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 54 | Invesco Ltd. | 443.99K | -25.3% | $411.92M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 55 | Invesco Ltd. | 443.99K | -25.3% | $411.92M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 56 | Bank Of America Corp /De/ | 400.23K | 0.0% | $371.33M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 57 | Bank Of America Corp /De/ | 400.23K | 0.0% | $371.33M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 58 | Bank Of America Corp /De/ | 400.23K | 0.0% | $371.33M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 59 | Bank Of America Corp /De/ | 400.23K | 0.0% | $371.33M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 60 | Bank Of America Corp /De/ | 400.23K | 0.0% | $371.33M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 61 | Bank Of America Corp /De/ | 400.23K | 0.0% | $371.33M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 62 | Bank Of America Corp /De/ | 400.23K | 0.0% | $371.33M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 63 | Alliancebernstein L.P. | 395.66K | -6.3% | $288.93M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 64 | Sei Investments Co | 255.07K | -11.1% | $236.65M | 0.2% | ▼ Trim | 3 | SEC ↗ |
| 65 | Sei Investments Co | 255.07K | -11.1% | $236.65M | 0.2% | ▼ Trim | 3 | SEC ↗ |
| 66 | Clearbridge Investments, LLC | 253.78K | +9.7% | $235.45M | 0.2% | ▲ Add | 3 | SEC ↗ |
| 67 | Jennison Associates Llc | 226.20K | -4.8% | $209.86M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 68 | Franklin Resources Inc | 224.93K | -3.7% | $208.68M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 69 | Franklin Resources Inc | 224.93K | -3.7% | $208.68M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 70 | Franklin Resources Inc | 224.93K | -3.7% | $208.68M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 71 | Franklin Resources Inc | 224.93K | -3.7% | $208.68M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 72 | Franklin Resources Inc | 224.93K | -3.7% | $208.68M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 73 | Franklin Resources Inc | 224.93K | -3.7% | $208.68M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 74 | Franklin Resources Inc | 224.93K | -3.7% | $208.68M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 75 | Citadel Advisors ✦ | 212.42K | -3.1% | $197.07M | 0.1% | ▼ Trim | 9 | SEC ↗ |
| 76 | Citadel Advisors ✦ | 212.42K | -3.1% | $197.07M | 0.1% | ▼ Trim | 9 | SEC ↗ |
| 77 | Pictet Asset Management Holding SA | 198.28K | +33.7% | $183.81M | 0.2% | ▲ Add | 3 | SEC ↗ |
| 78 | Two Sigma Investments ✦ | 185.64K | +70.1% | $172.23M | 0.1% | ▲ Add | 6 | SEC ↗ |
| 79 | Ameriprise Financial Inc | 181.46K | -15.9% | $168.36M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 80 | Ameriprise Financial Inc | 181.46K | -15.9% | $168.36M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 81 | Ameriprise Financial Inc | 181.46K | -15.9% | $168.36M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 82 | Ameriprise Financial Inc | 181.46K | -15.9% | $168.36M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 83 | Ameriprise Financial Inc | 181.46K | -15.9% | $168.36M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 84 | Goldman Sachs Group ✦ | 177.85K | -23.3% | $165.00M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 85 | Goldman Sachs Group ✦ | 177.85K | -23.3% | $165.00M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 86 | Goldman Sachs Group ✦ | 177.85K | -23.3% | $165.00M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 87 | Goldman Sachs Group ✦ | 177.85K | -23.3% | $165.00M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 88 | Goldman Sachs Group ✦ | 177.85K | -23.3% | $165.00M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 89 | Legal & General Group Plc | 177.16K | +17.4% | $164.37M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 90 | Legal & General Group Plc | 177.16K | +17.4% | $164.37M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 91 | Legal & General Group Plc | 177.16K | +17.4% | $164.37M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 92 | American Century Companies Inc | 173.19K | -0.3% | $160.69M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 93 | Allspring Global Investments… | 170.83K | -2.6% | $155.37M | 0.2% | ▼ Trim | 3 | SEC ↗ |
| 94 | Allspring Global Investments… | 170.83K | -2.6% | $155.37M | 0.2% | ▼ Trim | 3 | SEC ↗ |
| 95 | Allspring Global Investments… | 170.83K | -2.6% | $155.37M | 0.2% | ▼ Trim | 3 | SEC ↗ |
| 96 | Bnp Paribas Financial Markets | 157.96K | -11.2% | $146.55M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 97 | 1832 Asset Management L.P. | 157.94K | +87.6% | $146.53M | 0.2% | ▲ Add | 3 | SEC ↗ |
| 98 | Deutsche Bank Ag\ | 137.34K | -1.5% | $127.42M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 99 | Deutsche Bank Ag\ | 137.34K | -1.5% | $127.42M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 100 | Deutsche Bank Ag\ | 137.34K | -1.5% | $127.42M | 0.0% | ▼ Trim | 3 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| Jane Street Group, Llc | $28.07M | was 0.0% |
| Balyasny Asset Management L.P. | $9.57M | was 0.0% |
| IMC-Chicago, LLC | $1.28M | was 0.0% |
| Loomis Sayles & Co L P | $1.15M | was 0.0% |
| Walleye Trading LLC | $177,451 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 1 holders, 797 shares, $571,869 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: Q2 2026 ·
Methodology ·
Get this via the API