ARGX
argenx SE · Healthcare · Biotechnology
Momentum inputs (comparable managers):
holder breadth +20.0% ·
share flow -0.4% ·
net new positions +16.7%
· formula
Ownership fragmentation: more holders, smaller aggregate stake
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2024
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 3 | +1 | 36.98K | $35.38M | +1 | −1 |
| 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 | n/a |
| Q3 2025 | 16 | -2 | 14.76M | $10.89B | n/a | −2 |
| Q2 2025 | 15 | 0 | 15.30M | $8.43B | n/a | n/a |
| Q1 2025 | 13 | +1 | 9.21M | $5.45B | +2 | −1 |
| Q4 2024 | 12 | +2 | 9.05M | $5.57B | +2 | n/a |
| Q3 2024 | 9 | -1 | 9.09M | $4.93B | n/a | −1 |
| Q2 2024 | 10 | n/a | 8.59M | $3.70B | n/a | n/a |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | T. Rowe Price ✦ | 5.52M | -5.2% | $3.39B | 0.4% | ▼ Trim | 3 | SEC ↗ ×2 |
| 2 | Capital World Investors ✦ | 1.79M | +5.1% | $1.10B | 0.2% | ▲ Add | 3 | SEC ↗ |
| 3 | Citadel Advisors ✦ | 514.11K | -16.4% | $316.17M | 0.3% | ▼ Trim | 3 | SEC ↗ ×2 |
| 4 | Wellington Management ✦ | 424.97K | -11.9% | $261.36M | 0.0% | ▼ Trim | 3 | SEC ↗ ×8 |
| 5 | D. E. Shaw & Co. ✦ | 288.30K | +183.8% | $177.30M | 0.2% | ▲ Add | 3 | SEC ↗ |
| 6 | Marshall Wace ✦ | 191.55K | +184.7% | $117.81M | 0.1% | ▲ Add | 3 | SEC ↗ ×2 |
| 7 | Point72 Asset Management ✦ | 147.99K | New | $91.01M | 0.3% | New | 1 | SEC ↗ |
| 8 | Adage Capital Partners ✦ | 89.79K | -46.8% | $55.22M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 9 | Millennium Management ✦ | 64.42K | -41.3% | $39.62M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 10 | Geode Capital Management ✦ (passive) | 27.21K | +1.7% | $16.73M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 11 | State Street Global Advisors ✦ (passive) | 1.93K | n/a | $1.19M | 0.0% | n/c | 1 | SEC ↗ |
| 12 | AQR Capital Management ✦ | 380 | New | $233,700 | 0.0% | New | 1 | SEC ↗ ×3 |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| Point72 Asset Management | $91.01M | 0.3% |
| AQR Capital Management | $233,700 | 0.0% |
Exited
| No tracked exits this quarter. |
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.
What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.