RNAM
Avidity Biosciences Inc · Healthcare · Biotechnology
Momentum inputs (comparable managers):
holder breadth +8.3% ·
share flow +3.2% ·
net new positions +7.7%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2024
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | T. Rowe Price ✦ | 11.04M | +3.8% | $321.13M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 2 | Wellington Management ✦ | 8.11M | +15.3% | $235.73M | 0.0% | ▲ Add | 3 | SEC ↗ ×9 |
| 3 | State Street Global Advisors ✦ (passive) | 4.60M | — | $133.83M | 0.0% | n/c | 1 | SEC ↗ |
| 4 | Geode Capital Management ✦ (passive) | 2.81M | +8.6% | $82.83M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 5 | Adage Capital Partners ✦ | 2.75M | -10.6% | $80.03M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 6 | Norges Bank ✦ (passive) | 724.79K | -30.8% | $21.08M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 7 | D. E. Shaw & Co. ✦ | 558.97K | -49.6% | $16.25M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 8 | Citadel Advisors ✦ | 411.68K | New | $11.97M | 0.0% | New | 1 | SEC ↗ |
| 9 | Renaissance Technologies ✦ | 211.20K | +48.8% | $6.14M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 10 | Marshall Wace ✦ | 162.86K | -10.6% | $4.74M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 11 | Two Sigma Investments ✦ | 132.56K | +1.9% | $3.85M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 12 | Millennium Management ✦ | 23.94K | +29.2% | $696,204 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 13 | AQR Capital Management ✦ | 13.06K | -47.7% | $379,813 | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Citadel Advisors | $11.97M | 0.0% |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 1 holders, 8.00K shares, $236,160 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.