Security record · archived quarter
MGNX
name pending profile ingest
46Tracked holders
+1Δ holders
22.59MShares held
$36.34MReported value
+1New positions
−0Exits
Momentum inputs (comparable managers):
holder breadth +2.2% ·
share flow +3.7% ·
net new positions +2.2%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2025
Ownership over time
| 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 | — |
| Q3 2025 | 14 | -1 | 15.12M | $25.40M | — | −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 | — | −1 |
| Q3 2024 | 9 | -1 | 8.63M | $28.39M | — | −1 |
| Q2 2024 | 10 | — | 8.97M | $38.13M | — | — |
Who holds it · Q4 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | The Vanguard Group ✦ (passive) | 4.23M | +0.1% | $6.81M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 2 | Renaissance Technologies ✦ | 2.91M | +71.0% | $4.68M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 3 | Millennium Management ✦ | 1.97M | -6.7% | $3.18M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 4 | Bank Of America Corp /De/ | 1.84M | — | $2.96M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 5 | Marshall Wace ✦ | 1.28M | +104.0% | $2.07M | 0.0% | ▲ Add | 7 | SEC ↗ ×2 |
| 6 | Jane Street Group, Llc | 1.25M | — | $2.02M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 7 | BlackRock ✦ (passive) | 1.15M | -25.1% | $1.86M | 0.0% | ▼ Trim | 3 | SEC ↗ ×6 |
| 8 | Citadel Advisors ✦ | 1.04M | +109.7% | $1.67M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 9 | Two Sigma Investments ✦ | 999.47K | +128.7% | $1.61M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 10 | Connor, Clark & Lunn Investment… | 818.82K | — | $1.32M | 0.0% | n/c | 1 | SEC ↗ |
| 11 | D. E. Shaw & Co. ✦ | 756.65K | +240.5% | $1.22M | 0.0% | ▲ Add | 4 | SEC ↗ ×2 |
| 12 | Geode Capital Management ✦ (passive) | 655.30K | -0.3% | $1.06M | 0.0% | ▼ Trim | 7 | SEC ↗ ×2 |
| 13 | Nomura Asset Management… | 420.00K | — | $676,000 | 0.0% | n/c | 1 | SEC ↗ |
| 14 | Squarepoint Ops LLC | 312.42K | — | $503,003 | 0.0% | n/c | 1 | SEC ↗ |
| 15 | Universal- Beteiligungs- und… | 300.00K | — | $468,000 | 0.0% | n/c | 1 | SEC ↗ |
| 16 | State Street Global Advisors ✦ (passive) | 274.59K | 0.0% | $442,085 | 0.0% | Held | 5 | SEC ↗ |
| 17 | Point72 Asset Management ✦ | 249.16K | New | $401,143 | 0.0% | New | 1 | SEC ↗ |
| 18 | Amundi | 214.28K | — | $344,988 | 0.0% | n/c | 1 | SEC ↗ |
| 19 | Mackenzie Financial Corp | 207.88K | — | $323,653 | 0.0% | n/c | 1 | SEC ↗ |
| 20 | Hrt Financial Lp | 190.09K | — | $306,000 | 0.0% | n/c | 1 | SEC ↗ |
| 21 | Dimensional Fund Advisors Lp | 187.78K | — | $302,099 | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 22 | Goldman Sachs Group ✦ | 181.71K | -29.8% | $292,546 | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 23 | Morgan Stanley ✦ | 161.02K | -83.7% | $259,236 | 0.0% | ▼ Trim | 2 | SEC ↗ ×5 |
| 24 | Canada Pension Plan Investment Board | 155.20K | — | $249,872 | 0.0% | n/c | 1 | SEC ↗ |
| 25 | Northern Trust Corp | 152.67K | — | $245,802 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 26 | UBS Group AG | 119.45K | — | $192,310 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 27 | Invesco Ltd. | 111.12K | — | $178,905 | 0.0% | n/c | 1 | SEC ↗ |
| 28 | Ameriprise Financial Inc | 92.85K | — | $149,494 | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 29 | Susquehanna International Group, Llp | 68.54K | — | $110,351 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 30 | LPL Financial LLC | 65.12K | — | $104,851 | 0.0% | n/c | 1 | SEC ↗ |
| 31 | Fidelity (FMR) ✦ | 62.30K | -1.6% | $100,301 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 32 | Barclays Plc | 41.35K | — | $66,575 | 0.0% | n/c | 1 | SEC ↗ |
| 33 | Sei Investments Co | 31.32K | — | $50,422 | 0.0% | n/c | 1 | SEC ↗ |
| 34 | Corient Private Wealth LP | 23.64K | — | $38,066 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 35 | Prudential Financial Inc | 22.60K | — | $36,386 | 0.0% | n/c | 1 | SEC ↗ |
| 36 | Tudor Investment Corp Et Al | 16.43K | — | $26,451 | 0.0% | n/c | 1 | SEC ↗ |
| 37 | Osaic Holdings, Inc. | 6.46K | — | $10,396 | 0.0% | n/c | 1 | SEC ↗ |
| 38 | JPMorgan Chase ✦ | 5.75K | -99.6% | $9,262 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 39 | Simplex Trading, Llc | 5.10K | — | $8,206 | 0.0% | n/c | 1 | SEC ↗ |
| 40 | Wells Fargo & Company/Mn | 3.00K | — | $4,830 | 0.0% | n/c | 1 | SEC ↗ |
| 41 | Russell Investments Group, Ltd. | 1.28K | — | $2,057 | 0.0% | n/c | 1 | SEC ↗ |
| 42 | Bnp Paribas Financial Markets | 694 | — | $1,117 | 0.0% | n/c | 1 | SEC ↗ |
| 43 | Royal Bank Of Canada | 879 | — | $1,000 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 44 | Jones Financial Companies Lllp | 30 | — | $48 | 0.0% | n/c | 1 | SEC ↗ |
| 45 | Rockefeller Capital Management L.P. | 25 | — | $40 | 0.0% | n/c | 1 | SEC ↗ |
| 46 | Cwm, Llc | 243 | — | $0 | 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
| Point72 Asset Management | $401,143 | 0.0% |
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.
Frequently co-owned
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)
Aug 19
Peters Jeffrey Stuart
Officer · 31.11K sh · $129,086
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
Aug 14
SC 13G/A — ARMISTICE CAPITAL, LLC
Aug 03
SC 13G/A — BANK OF AMERICA CORP /DE/
Jul 29
SC 13G — BlackRock, Inc.
Jul 20
SC 13G/A — MILLENNIUM MANAGEMENT LLC
Jun 05
SC 13G — MILLENNIUM MANAGEMENT LLC
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: Q4 2025 ·
Methodology ·
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