Security record · archived quarter
DAWN
Day One Biopharmaceuticals, Inc. · Healthcare · Biotechnology
14Tracked holders
—Δ holders
8.62MShares held
$118.84MReported value
+0New positions
−0Exits
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2024
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q1 2026 | 86 | +1 | 49.82M | $1.05B | +13 | −13 |
| Q4 2025 | 86 | +2 | 51.33M | $478.37M | +3 | — |
| Q3 2025 | 15 | -1 | 35.84M | $252.66M | — | −2 |
| Q2 2025 | 14 | -1 | 36.93M | $240.03M | +1 | −2 |
| Q1 2025 | 12 | -2 | 10.53M | $83.51M | — | −2 |
| Q4 2024 | 14 | 0 | 10.71M | $135.72M | +1 | −1 |
| Q3 2024 | 13 | -1 | 9.77M | $136.05M | +1 | −2 |
| Q2 2024 | 14 | — | 8.62M | $118.84M | — | — |
Who holds it · Q2 2024
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Viking Global Investors ✦ | 2.56M | — | $35.26M | 0.1% | n/c | 1 | SEC ↗ |
| 2 | T. Rowe Price ✦ | 2.35M | — | $32.40M | 0.0% | n/c | 1 | SEC ↗ |
| 3 | T. Rowe Price ✦ | 2.35M | — | $32.40M | 0.0% | n/c | 1 | SEC ↗ |
| 4 | Geode Capital Management ✦ (passive) | 1.30M | — | $17.87M | 0.0% | n/c | 1 | SEC ↗ |
| 5 | Geode Capital Management ✦ (passive) | 1.30M | — | $17.87M | 0.0% | n/c | 1 | SEC ↗ |
| 6 | Point72 Asset Management ✦ | 470.25K | — | $6.48M | 0.0% | n/c | 1 | SEC ↗ |
| 7 | Citadel Advisors ✦ | 369.61K | — | $5.09M | 0.0% | n/c | 1 | SEC ↗ |
| 8 | Citadel Advisors ✦ | 369.61K | — | $5.09M | 0.0% | n/c | 1 | SEC ↗ |
| 9 | Two Sigma Investments ✦ | 299.21K | — | $4.12M | 0.0% | n/c | 1 | SEC ↗ |
| 10 | Wellington Management ✦ | 298.04K | — | $4.11M | 0.0% | n/c | 1 | SEC ↗ |
| 11 | Wellington Management ✦ | 298.04K | — | $4.11M | 0.0% | n/c | 1 | SEC ↗ |
| 12 | Wellington Management ✦ | 298.04K | — | $4.11M | 0.0% | n/c | 1 | SEC ↗ |
| 13 | Wellington Management ✦ | 298.04K | — | $4.11M | 0.0% | n/c | 1 | SEC ↗ |
| 14 | D. E. Shaw & Co. ✦ | 224.34K | — | $3.09M | 0.0% | n/c | 1 | SEC ↗ |
| 15 | D. E. Shaw & Co. ✦ | 224.34K | — | $3.09M | 0.0% | n/c | 1 | SEC ↗ |
| 16 | Norges Bank ✦ (passive) | 169.00K | — | $2.33M | 0.0% | n/c | 1 | SEC ↗ |
| 17 | Millennium Management ✦ | 167.76K | — | $2.31M | 0.0% | n/c | 1 | SEC ↗ |
| 18 | Marshall Wace ✦ | 161.13K | — | $2.22M | 0.0% | n/c | 1 | SEC ↗ |
| 19 | Marshall Wace ✦ | 161.13K | — | $2.22M | 0.0% | n/c | 1 | SEC ↗ |
| 20 | AQR Capital Management ✦ | 113.02K | — | $1.56M | 0.0% | n/c | 1 | SEC ↗ |
| 21 | AQR Capital Management ✦ | 113.02K | — | $1.56M | 0.0% | n/c | 1 | SEC ↗ |
| 22 | Fisher Asset Management ✦ | 73.30K | — | $1.01M | 0.0% | n/c | 1 | SEC ↗ |
| 23 | Renaissance Technologies ✦ | 72.14K | — | $994,089 | 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
| No new tracked buyers this quarter. |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 206 holders, 83.68M shares, $1.67B 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 2024 ·
Methodology ·
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