MGNX
name pending profile ingest
Momentum inputs (comparable managers): holder breadth 0.0% · share flow -11.4% · net new positions 0.0% · formula
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 62 | +12 | 29.70M | $137.22M | +18 | −7 |
| Q1 2026 | 51 | +5 | 25.23M | $72.90M | +7 | −2 |
| Q4 2025 | 46 | +1 | 22.59M | $36.34M | +1 | n/a |
| Q3 2025 | 14 | -1 | 15.12M | $25.40M | n/a | −1 |
| Q2 2025 | 12 | 0 | 11.58M | $14.01M | +1 | −1 |
| Q1 2025 | 9 | 0 | 6.98M | $8.87M | +1 | −1 |
| Q4 2024 | 9 | -1 | 8.68M | $28.22M | n/a | −1 |
| Q3 2024 | 9 | -1 | 8.63M | $28.39M | n/a | −1 |
| Q2 2024 | 10 | n/a | 8.97M | $38.13M | n/a | n/a |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | The Vanguard Group ✦ (passive) | 4.21M | n/a | $5.10M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 2 | Millennium Management ✦ | 2.02M | +16.9% | $2.44M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 1.82M | n/a | $2.20M | 0.0% | n/c | 1 | SEC ↗ ×8 |
| 4 | Renaissance Technologies ✦ | 1.33M | +15.1% | $1.61M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 5 | Geode Capital Management ✦ (passive) | 683.54K | -53.1% | $827,380 | 0.0% | ▼ Trim | 5 | SEC ↗ ×2 |
| 6 | Two Sigma Investments ✦ | 407.29K | -37.8% | $492,818 | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 7 | Marshall Wace ✦ | 405.91K | +35.7% | $491,152 | 0.0% | ▲ Add | 5 | SEC ↗ ×3 |
| 8 | State Street Global Advisors ✦ (passive) | 300.29K | -78.7% | $363,347 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 9 | Citadel Advisors ✦ | 171.58K | New | $207,609 | 0.0% | New | 1 | SEC ↗ |
| 10 | D. E. Shaw & Co. ✦ | 100.51K | +250.2% | $121,618 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 11 | AQR Capital Management ✦ | 75.53K | -67.5% | $91,390 | 0.0% | ▼ Trim | 5 | SEC ↗ ×4 |
| 12 | Fidelity (FMR) ✦ | 63.91K | n/a | $77,337 | 0.0% | n/c | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| Citadel Advisors | $207,609 | 0.0% |
Exited
| T. Rowe Price | $33,000 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 108 holders, 43.15M shares, $116.09M 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.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Officer · 31.11K sh · $129,086
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology