AURA
Aura Biosciences, Inc. · Healthcare · Biotechnology
Momentum inputs (comparable managers):
holder breadth +20.0% ·
share flow +0.2% ·
net new positions +16.7%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 63 | +4 | 26.02M | $184.73M | +7 | −3 |
| Q1 2026 | 61 | +1 | 20.24M | $135.34M | +4 | −3 |
| Q4 2025 | 60 | +2 | 20.07M | $109.37M | +2 | — |
| Q3 2025 | 14 | -1 | 14.65M | $90.53M | — | −1 |
| Q2 2025 | 12 | +2 | 13.23M | $82.82M | +2 | — |
| Q1 2025 | 7 | -1 | 7.63M | $44.69M | — | −1 |
| Q4 2024 | 8 | -1 | 7.50M | $61.68M | — | −1 |
| Q3 2024 | 8 | 0 | 6.61M | $58.90M | +1 | −1 |
| Q2 2024 | 8 | — | 9.02M | $68.17M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Adage Capital Partners ✦ | 4.88M | 0.0% | $30.56M | 0.1% | Held | 5 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 3.10M | — | $19.42M | 0.0% | n/c | 1 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 3.10M | — | $19.42M | 0.0% | n/c | 1 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 3.10M | — | $19.42M | 0.0% | n/c | 1 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 3.10M | — | $19.42M | 0.0% | n/c | 1 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 3.10M | — | $19.42M | 0.0% | n/c | 1 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 3.10M | — | $19.42M | 0.0% | n/c | 1 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 3.10M | — | $19.42M | 0.0% | n/c | 1 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 3.10M | — | $19.42M | 0.0% | n/c | 1 | SEC ↗ |
| 10 | The Vanguard Group ✦ (passive) | 2.48M | — | $15.51M | 0.0% | n/c | 1 | SEC ↗ |
| 11 | The Vanguard Group ✦ (passive) | 2.48M | — | $15.51M | 0.0% | n/c | 1 | SEC ↗ |
| 12 | The Vanguard Group ✦ (passive) | 2.48M | — | $15.51M | 0.0% | n/c | 1 | SEC ↗ |
| 13 | Geode Capital Management ✦ (passive) | 929.97K | -9.3% | $5.82M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 14 | Geode Capital Management ✦ (passive) | 929.97K | -9.3% | $5.82M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 15 | State Street Global Advisors ✦ (passive) | 856.19K | +8.0% | $5.36M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 16 | T. Rowe Price ✦ | 504.83K | -2.9% | $3.16M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 17 | T. Rowe Price ✦ | 504.83K | -2.9% | $3.16M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 18 | Wellington Management ✦ | 189.49K | +36.4% | $1.19M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 19 | Wellington Management ✦ | 189.49K | +36.4% | $1.19M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 20 | Wellington Management ✦ | 189.49K | +36.4% | $1.19M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 21 | Renaissance Technologies ✦ | 131.55K | +27.4% | $823,490 | 0.0% | ▲ Add | 5 | SEC ↗ |
| 22 | Millennium Management ✦ | 124.06K | New | $776,609 | 0.0% | New | 1 | SEC ↗ |
| 23 | AQR Capital Management ✦ | 17.64K | New | $110,395 | 0.0% | New | 1 | SEC ↗ |
| 24 | AQR Capital Management ✦ | 17.64K | New | $110,395 | 0.0% | New | 1 | SEC ↗ |
| 25 | AQR Capital Management ✦ | 17.64K | New | $110,395 | 0.0% | New | 1 | SEC ↗ |
| 26 | AQR Capital Management ✦ | 17.64K | New | $110,395 | 0.0% | New | 1 | SEC ↗ |
| 27 | Citadel Advisors ✦ | 12.83K | -92.2% | $80,322 | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 28 | Fidelity (FMR) ✦ | 1.54K | — | $9,652 | 0.0% | n/c | 1 | SEC ↗ |
| 29 | Fidelity (FMR) ✦ | 1.54K | — | $9,652 | 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
| Millennium Management | $776,609 | 0.0% |
| AQR Capital Management | $110,395 | 0.0% |
| AQR Capital Management | $110,395 | 0.0% |
| AQR Capital Management | $110,395 | 0.0% |
| AQR Capital Management | $110,395 | 0.0% |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 125 holders, 50.86M shares, $337.45M 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.