ANNX
Annexon, Inc. · Healthcare · Biotechnology
Momentum inputs (comparable managers):
holder breadth -15.4% ·
share flow -15.2% ·
net new positions -18.2%
— formula
Broad distribution — falling shares and fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2024
| 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 | Point72 Asset Management ✦ | 5.63M | +5.6% | $28.87M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 2 | State Street Global Advisors ✦ (passive) | 4.51M | — | $23.14M | 0.0% | n/c | 1 | SEC ↗ |
| 3 | Geode Capital Management ✦ (passive) | 2.17M | +1.3% | $11.14M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 4 | Geode Capital Management ✦ (passive) | 2.17M | +1.3% | $11.14M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 5 | T. Rowe Price ✦ | 1.10M | +6.7% | $5.67M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 6 | T. Rowe Price ✦ | 1.10M | +6.7% | $5.67M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 7 | Renaissance Technologies ✦ | 493.70K | +23.0% | $2.53M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 8 | Wellington Management ✦ | 268.17K | +1.8% | $1.38M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 9 | Wellington Management ✦ | 268.17K | +1.8% | $1.38M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 10 | Millennium Management ✦ | 155.68K | +114.3% | $798,618 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 11 | Two Sigma Investments ✦ | 137.18K | -2.6% | $703,749 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 12 | Marshall Wace ✦ | 38.84K | -86.7% | $199,276 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 13 | Marshall Wace ✦ | 38.84K | -86.7% | $199,276 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 14 | AQR Capital Management ✦ | 33.15K | -48.8% | $170,075 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 15 | AQR Capital Management ✦ | 33.15K | -48.8% | $170,075 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 16 | AQR Capital Management ✦ | 33.15K | -48.8% | $170,075 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 17 | Citadel Advisors ✦ | 25.10K | +345.2% | $128,753 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 18 | Citadel Advisors ✦ | 25.10K | +345.2% | $128,753 | 0.0% | ▲ Add | 2 | 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
| Adage Capital Partners | $16.81M | was 0.0% |
| D. E. Shaw & Co. | $481,953 | 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.