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, Q4 2025
Institutional positions in Day One Biopharmaceuticals, Inc. as of Dec 31, 2025. 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
- 184
- +11 vs. Q3 2025
- Shares held
- 81.4M
- −4.19M (−4.9%) vs. Q3 2025
- Total value
- $758.4M
- +$155.0M (+25.7%) vs. Q3 2025
- New holders
- 44
- 74 more added
- Sold out
- 33
- 43 more reduced
Compare with Q3 2025: 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, Q4 2025
Shares, value and share of portfolio for each institution holding Day One Biopharmaceuticals, Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Tema ETFs LLC | 0 | $0 | 0.00% | −19,542−100.0% | Sold out |
| Polymer Capital Management (US) LLC | 0 | $0 | 0.00% | −19,036−100.0% | Sold out |
| Aigen Investment Management, LP | 0 | $0 | 0.00% | −18,803−100.0% | Sold out |
| Integrated Wealth Concepts LLC | 0 | $0 | 0.00% | −17,430−100.0% | Sold out |
| Magnetar Financial LLC | 0 | $0 | 0.00% | −16,487−100.0% | Sold out |
| Omers Administration Corp | 0 | $0 | 0.00% | −14,600−100.0% | Sold out |
| Sherbrooke Park Advisers LLC | 0 | $0 | 0.00% | −11,457−100.0% | Sold out |
| Prelude Capital Management, LLC | 0 | $0 | 0.00% | −10,641−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −7,490−100.0% | Sold out |
| Quarry LP | 0 | $0 | 0.00% | −7,009−100.0% | Sold out |
| Clear Street Markets LLC | 0 | $0 | 0.00% | −807−100.0% | Sold out |
| Steward Partners Investment Advisory, LLC | 0 | $0 | 0.00% | −300−100.0% | Sold out |
| Washington Trust Advisors, Inc. | 0 | $0 | 0.00% | −274−100.0% | Sold out |
| Rise Advisors, LLC | 0 | $0 | 0.00% | −69−100.0% | Sold out |
| Global Trust Asset Management, LLC | 0 | $0 | 0.00% | −50−100.0% | Sold out |
| Clearstead Advisors, LLC | 0 | $0 | 0.00% | −39−100.0% | Sold out |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −11−100.0% | Sold out |