Day One Biopharmaceuticals, Inc.
DAWNDelisted Apr 23, 2026- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001845337
Day One Biopharmaceuticals, Inc. was delisted on Apr 23, 2026; its insiders filed their last Form 4 on Apr 27, 2026; 208 institutions reported holding it in 13F filings for Q1 2026, worth $1.85B in total; Soros Fund Management was the only superinvestor holding it.
13F holders, Q1 2023
Institutional positions in Day One Biopharmaceuticals, Inc. as of Mar 31, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 126
- +17 vs. Q4 2022
- Shares held
- 61.2M
- +1.02M (+1.7%) vs. Q4 2022
- Total value
- $818.1M
- −$470.9M (−36.5%) vs. Q4 2022
- New holders
- 34
- 40 more added
- Sold out
- 17
- 27 more reduced
Compare with Q4 2022: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting DAWN on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 1 | $3.55K |
| Q1 2026 | 208 | $1.85B |
| Q4 2025 | 184 | $758.4M |
| Q3 2025 | 173 | $603.5M |
| Q2 2025 | 174 | $561.1M |
| Q1 2025 | 184 | $747.1M |
| Q4 2024 | 164 | $1.19B |
| Q3 2024 | 166 | $1.28B |
| Q2 2024 | 157 | $1.03B |
| Q1 2024 | 148 | $1.20B |
| Q4 2023 | 139 | $1.12B |
| Q3 2023 | 130 | $951.5M |
| Q2 2023 | 140 | $941.0M |
| Q1 2023 | 126 | $818.1M |
| Q4 2022 | 109 | $1.29B |
| Q3 2022 | 93 | $1.21B |
| Q2 2022 | 87 | $1.06B |
| Q1 2022 | 66 | $429.6M |
| Q4 2021 | 58 | $698.3M |
| Q3 2021 | 45 | $452.9M |
| Q2 2021 | 33 | $401.1M |
| Q1 2021 | 0 | $0 |
Institutions, Q1 2023
Shares, value and share of portfolio for each institution holding Day One Biopharmaceuticals, Inc.; share changes are against Q4 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Renaissance Technologies LLC | 379,100 | $5.07M | 0.01% | +231,674+157.1% | Added |
| Citadel Advisors LLC | 394,084 | $5.27M | 0.01% | +387,213+5,635.5% | Added |
| Parkman Healthcare Partners LLC | 400,220 | $5.35M | 1.16% | +175,737+78.3% | Added |
| Lord, Abbett & Co. LLC | 402,440 | $5.38M | 0.02% | −103,738−20.5% | Reduced |
| D. E. Shaw & Co., Inc. | 424,379 | $5.67M | 0.01% | −176,943−29.4% | Reduced |
| Driehaus Capital Management LLC | 471,884 | $6.31M | 0.09% | −11,600−2.4% | Reduced |
| Nuveen Asset Management, LLC | 498,791 | $6.67M | 0.00% | +77,664+18.4% | Added |
| Janus Henderson Group PLC | 562,794 | $7.53M | 0.00% | +562,794 | New |
| Geode Capital Management, LLC | 588,476 | $7.87M | 0.00% | +7,992+1.4% | Added |
| Commodore Capital LP | 739,661 | $9.89M | 1.51% | 00.0% | Unchanged |
| Adage Capital Partners GP, L.L.C. | 740,000 | $9.89M | 0.02% | −2,560,000−77.6% | Reduced |
| Boxer Capital, LLC | 1,189,943 | $15.9M | 0.78% | 00.0% | Unchanged |
| Polar Capital Holdings Plc | 1,399,548 | $18.7M | 0.14% | 00.0% | Unchanged |
| Viking Global Investors LPSuperinvestorViking Global Investors | 1,558,563 | $20.8M | 0.10% | 00.0% | Unchanged |
| Nicholas Investment Partners, LP | 1,603,390 | $21.4M | 1.63% | +816,836+103.8% | Added |
| Price T Rowe Associates Inc | 1,664,751 | $22.3M | 0.00% | −517,827−23.7% | Reduced |
| State Street Corp | 2,256,791 | $30.2M | 0.00% | −199,744−8.1% | Reduced |
| BlackRock Inc. | 2,258,495 | $30.2M | 0.00% | −176,773−7.3% | Reduced |
| Goldman Sachs Group Inc | 2,283,336 | $30.5M | 0.01% | +515,234+29.1% | Added |
| Canaan Partners XI LLC | 2,548,403 | $34.1M | 24.51% | 00.0% | Unchanged |
| Vanguard Group Inc | 3,131,981 | $41.9M | 0.00% | +23,008+0.7% | Added |
| Braidwell LP | 3,159,895 | $42.2M | 1.39% | +1,913,356+153.5% | Added |
| Franklin Resources Inc | 3,406,871 | $45.5M | 0.02% | +934,022+37.8% | Added |
| Ra Capital Management, L.P. | 7,040,622 | $94.1M | 2.13% | 00.0% | Unchanged |
| Atlas Venture Life Science Advisors, LLC | 7,608,394 | $101.7M | 13.77% | +40,077+0.5% | Added |
| FMR LLC | 8,572,183 | $114.6M | 0.01% | −430,128−4.8% | Reduced |
| Pathway Capital Management, LP | 0 | $0 | 0.00% | −995,686−100.0% | Sold out |
| Deerfield Management Company, L.P. (Series C) | 0 | $0 | 0.00% | −964,033−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −461,631−100.0% | Sold out |
| Voloridge Investment Management, LLC | 0 | $0 | 0.00% | −146,041−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −65,929−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −45,586−100.0% | Sold out |
| Cheyne Capital Management (UK) LLP | 0 | $0 | 0.00% | −27,223−100.0% | Sold out |
| Penn Mutual Asset Management, LLC | 0 | $0 | 0.00% | −24,920−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −9,883−100.0% | Sold out |
| ProShare Advisors LLC | 0 | $0 | 0.00% | −9,645−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −5,900−100.0% | Sold out |
| Capital Analysts, LLC | 0 | $0 | 0.00% | −750−100.0% | Sold out |
| Bellevue Asset Management, LLC | 0 | $0 | 0.00% | −62−100.0% | Sold out |
| Accurate Wealth Management, LLC | 0 | $0 | 0.00% | −34−100.0% | Sold out |
| Horan Securities, Inc. | 0 | $0 | 0.00% | −17−100.0% | Sold out |
| Ellevest, Inc. | 0 | $0 | 0.00% | −13−100.0% | Sold out |
| Credit Suisse AG | 0 | $0 | 0.00% | −1−100.0% | Sold out |