MGNX
name pending profile ingest
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2024
| 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 | Millennium Management ✦ | 3.31M | n/a | $14.08M | 0.0% | n/c | 1 | SEC ↗ |
| 2 | Geode Capital Management ✦ (passive) | 1.42M | n/a | $6.02M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 3 | T. Rowe Price ✦ | 1.34M | n/a | $5.68M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 4 | Two Sigma Investments ✦ | 1.22M | n/a | $5.20M | 0.0% | n/c | 1 | SEC ↗ |
| 5 | Marshall Wace ✦ | 658.01K | n/a | $2.80M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 6 | Renaissance Technologies ✦ | 484.03K | n/a | $2.06M | 0.0% | n/c | 1 | SEC ↗ |
| 7 | Wellington Management ✦ | 265.41K | n/a | $1.13M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 8 | AQR Capital Management ✦ | 143.16K | n/a | $608,435 | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 9 | D. E. Shaw & Co. ✦ | 114.06K | n/a | $484,755 | 0.0% | n/c | 1 | SEC ↗ |
| 10 | Citadel Advisors ✦ | 18.57K | n/a | $78,918 | 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
| No new tracked buyers this quarter. |
Exited
| No tracked exits this quarter. |
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