ANNX
Annexon, Inc. · Healthcare · Biotechnology
Momentum inputs (comparable managers):
holder breadth -18.2% ·
share flow -30.0% ·
net new positions -20.0%
— formula
Broad distribution — falling shares and fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 83 | 0 | 98.98M | $564.98M | +7 | −7 |
| Q1 2026 | 86 | +9 | 86.15M | $477.02M | +15 | −6 |
| Q4 2025 | 77 | +3 | 76.53M | $384.12M | +3 | — |
| Q3 2025 | 16 | +1 | 41.50M | $126.59M | +2 | −1 |
| Q2 2025 | 12 | 0 | 37.67M | $90.40M | +2 | −2 |
| Q1 2025 | 9 | -2 | 6.64M | $12.81M | — | −2 |
| Q4 2024 | 11 | -2 | 14.57M | $74.72M | — | −2 |
| Q3 2024 | 12 | +1 | 12.67M | $75.00M | +1 | — |
| Q2 2024 | 11 | — | 15.25M | $74.74M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Geode Capital Management ✦ (passive) | 2.25M | +3.4% | $4.33M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 2 | Geode Capital Management ✦ (passive) | 2.25M | +3.4% | $4.33M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 3 | State Street Global Advisors ✦ (passive) | 2.04M | -54.8% | $3.94M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 4 | Renaissance Technologies ✦ | 1.16M | +135.4% | $2.24M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 5 | T. Rowe Price ✦ | 524.74K | -52.5% | $1.01M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 6 | T. Rowe Price ✦ | 524.74K | -52.5% | $1.01M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 7 | Wellington Management ✦ | 356.48K | +32.9% | $688,006 | 0.0% | ▲ Add | 4 | SEC ↗ |
| 8 | Wellington Management ✦ | 356.48K | +32.9% | $688,006 | 0.0% | ▲ Add | 4 | SEC ↗ |
| 9 | Millennium Management ✦ | 175.30K | +12.6% | $338,335 | 0.0% | ▲ Add | 4 | SEC ↗ |
| 10 | AQR Capital Management ✦ | 73.79K | +122.6% | $142,415 | 0.0% | ▲ Add | 4 | SEC ↗ |
| 11 | AQR Capital Management ✦ | 73.79K | +122.6% | $142,415 | 0.0% | ▲ Add | 4 | SEC ↗ |
| 12 | AQR Capital Management ✦ | 73.79K | +122.6% | $142,415 | 0.0% | ▲ Add | 4 | SEC ↗ |
| 13 | AQR Capital Management ✦ | 73.79K | +122.6% | $142,415 | 0.0% | ▲ Add | 4 | SEC ↗ |
| 14 | AQR Capital Management ✦ | 73.79K | +122.6% | $142,415 | 0.0% | ▲ Add | 4 | SEC ↗ |
| 15 | Point72 Asset Management ✦ | 45.71K | -99.2% | $88,229 | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 16 | Citadel Advisors ✦ | 12.46K | -50.4% | $24,038 | 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
| Two Sigma Investments | $703,749 | was 0.0% |
| Marshall Wace | $199,276 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 216 holders, 155.62M shares, $854.15M 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.