Security record · archived quarter
RNAM
Avidity Biosciences Inc · Healthcare · Biotechnology
13Tracked holders
-1Δ holders
64.96MShares held
$1.84BReported value
+1New positions
−2Exits
Momentum inputs (comparable managers):
holder breadth -7.1% ·
share flow -2.1% ·
net new positions -7.7%
— formula
Broad distribution — falling shares and fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2025
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q4 2025 | 103 | +3 | 81.99M | $5.91B | +5 | −1 |
| Q3 2025 | 15 | 0 | 78.61M | $3.43B | — | −1 |
| Q2 2025 | 13 | -1 | 64.96M | $1.84B | +1 | −2 |
| Q1 2025 | 11 | -2 | 31.61M | $933.16M | — | −2 |
| Q4 2024 | 13 | +1 | 31.55M | $918.65M | +1 | — |
| Q3 2024 | 11 | 0 | 25.98M | $1.19B | +1 | −1 |
| Q2 2024 | 11 | — | 22.12M | $903.80M | — | — |
Who holds it · Q2 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Fidelity (FMR) ✦ | 16.19M | — | $459.68M | 0.0% | n/c | 1 | SEC ↗ |
| 2 | Fidelity (FMR) ✦ | 16.19M | — | $459.68M | 0.0% | n/c | 1 | SEC ↗ |
| 3 | Fidelity (FMR) ✦ | 16.19M | — | $459.68M | 0.0% | n/c | 1 | SEC ↗ |
| 4 | Fidelity (FMR) ✦ | 16.19M | — | $459.68M | 0.0% | n/c | 1 | SEC ↗ |
| 5 | Fidelity (FMR) ✦ | 16.19M | — | $459.68M | 0.0% | n/c | 1 | SEC ↗ |
| 6 | T. Rowe Price ✦ | 10.81M | -4.7% | $306.97M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 7 | T. Rowe Price ✦ | 10.81M | -4.7% | $306.97M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 9.34M | — | $265.17M | 0.0% | n/c | 1 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 9.34M | — | $265.17M | 0.0% | n/c | 1 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 9.34M | — | $265.17M | 0.0% | n/c | 1 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 9.34M | — | $265.17M | 0.0% | n/c | 1 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 9.34M | — | $265.17M | 0.0% | n/c | 1 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 9.34M | — | $265.17M | 0.0% | n/c | 1 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 9.34M | — | $265.17M | 0.0% | n/c | 1 | SEC ↗ |
| 15 | BlackRock ✦ (passive) | 9.34M | — | $265.17M | 0.0% | n/c | 1 | SEC ↗ |
| 16 | BlackRock ✦ (passive) | 9.34M | — | $265.17M | 0.0% | n/c | 1 | SEC ↗ |
| 17 | BlackRock ✦ (passive) | 9.34M | — | $265.17M | 0.0% | n/c | 1 | SEC ↗ |
| 18 | BlackRock ✦ (passive) | 9.34M | — | $265.17M | 0.0% | n/c | 1 | SEC ↗ |
| 19 | BlackRock ✦ (passive) | 9.34M | — | $265.17M | 0.0% | n/c | 1 | SEC ↗ |
| 20 | BlackRock ✦ (passive) | 9.34M | — | $265.17M | 0.0% | n/c | 1 | SEC ↗ |
| 21 | BlackRock ✦ (passive) | 9.34M | — | $265.17M | 0.0% | n/c | 1 | SEC ↗ |
| 22 | BlackRock ✦ (passive) | 9.34M | — | $265.17M | 0.0% | n/c | 1 | SEC ↗ |
| 23 | Wellington Management ✦ | 9.25M | -4.5% | $262.69M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 24 | Wellington Management ✦ | 9.25M | -4.5% | $262.69M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 25 | Wellington Management ✦ | 9.25M | -4.5% | $262.69M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 26 | Wellington Management ✦ | 9.25M | -4.5% | $262.69M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 27 | Wellington Management ✦ | 9.25M | -4.5% | $262.69M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 28 | Wellington Management ✦ | 9.25M | -4.5% | $262.69M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 29 | Wellington Management ✦ | 9.25M | -4.5% | $262.69M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 30 | Wellington Management ✦ | 9.25M | -4.5% | $262.69M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 31 | Wellington Management ✦ | 9.25M | -4.5% | $262.69M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 32 | The Vanguard Group ✦ (passive) | 9.25M | — | $262.65M | 0.0% | n/c | 1 | SEC ↗ |
| 33 | The Vanguard Group ✦ (passive) | 9.25M | — | $262.65M | 0.0% | n/c | 1 | SEC ↗ |
| 34 | The Vanguard Group ✦ (passive) | 9.25M | — | $262.65M | 0.0% | n/c | 1 | SEC ↗ |
| 35 | The Vanguard Group ✦ (passive) | 9.25M | — | $262.65M | 0.0% | n/c | 1 | SEC ↗ |
| 36 | The Vanguard Group ✦ (passive) | 9.25M | — | $262.65M | 0.0% | n/c | 1 | SEC ↗ |
| 37 | State Street Global Advisors ✦ (passive) | 4.20M | -2.8% | $119.32M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 38 | Geode Capital Management ✦ (passive) | 2.85M | +3.4% | $80.89M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 39 | Geode Capital Management ✦ (passive) | 2.85M | +3.4% | $80.89M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 40 | Adage Capital Partners ✦ | 1.53M | -28.8% | $43.37M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 41 | Norges Bank ✦ (passive) | 995.12K | +18.7% | $28.26M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 42 | D. E. Shaw & Co. ✦ | 237.40K | New | $6.74M | 0.0% | New | 1 | SEC ↗ |
| 43 | Millennium Management ✦ | 236.99K | +1290.1% | $6.73M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 44 | Marshall Wace ✦ | 60.22K | -86.8% | $1.71M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 45 | Marshall Wace ✦ | 60.22K | -86.8% | $1.71M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 46 | Citadel Advisors ✦ | 21.72K | +34.2% | $616,905 | 0.0% | ▲ Add | 3 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| D. E. Shaw & Co. | $6.74M | 0.0% |
Exited
| Two Sigma Investments | $826,560 | was 0.0% |
| AQR Capital Management | $318,374 | was 0.0% |
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.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
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: Q2 2025 ·
Methodology ·
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