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, Q3 2025
Institutional positions in Day One Biopharmaceuticals, Inc. as of Sep 30, 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
- 173
- +1 vs. Q2 2025
- Shares held
- 85.6M
- −543.9K (−0.6%) vs. Q2 2025
- Total value
- $603.5M
- +$43.5M (+7.8%) vs. Q2 2025
- New holders
- 33
- 54 more added
- Sold out
- 32
- 61 more reduced
2 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding Day One Biopharmaceuticals, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Fox Run Management, L.L.C. | 25,932 | $182.8K | 0.03% | +25,932 | New |
| Manufacturers Life Insurance Company, The | 25,467 | $179.5K | 0.00% | −12,737−33.3% | Reduced |
| Brevan Howard Capital Management LP | 24,208 | $170.7K | 0.00% | +24,208 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 24,095 | $169.9K | 0.00% | −8,844−26.8% | Reduced |
| Schonfeld Strategic Advisors LLC | 23,320 | $164.4K | 0.00% | −76,270−76.6% | Reduced |
| Capstone Investment Advisors, LLC | 22,642 | $159.6K | 0.00% | +22,642 | New |
| Janus Henderson Group PLC | 21,300 | $150.1K | 0.00% | 00.0% | Unchanged |
| Police & Firemen's Retirement System of New Jersey | 20,411 | $143.9K | 0.00% | +2,710+15.3% | Added |
| NEOS Investment Management LLC | 19,542 | $137.8K | 0.00% | −104,768−84.3% | Reduced |
| Tema ETFs LLC | 19,542 | $137.8K | 0.01% | −104,768−84.3% | Reduced |
| Arizona State Retirement System | 19,469 | $137.3K | 0.00% | +258+1.3% | Added |
| Polymer Capital Management (US) LLC | 19,036 | $134.2K | 0.02% | +19,036 | New |
| Aigen Investment Management, LP | 18,803 | $132.6K | 0.02% | +18,803 | New |
| China Universal Asset Management Co., Ltd. | 17,955 | $126.6K | 0.01% | −2,403−11.8% | Reduced |
| State Board of Administration of Florida Retirement System | 17,880 | $126.1K | 0.00% | 00.0% | Unchanged |
| Integrated Wealth Concepts LLC | 17,430 | $122.9K | 0.00% | −2,740−13.6% | Reduced |
| Magnetar Financial LLC | 16,487 | $116.2K | 0.00% | +16,487 | New |
| Axq Capital, LP | 16,306 | $115.0K | 0.04% | +16,306 | New |
| Teacher Retirement System of Texas | 16,009 | $112.9K | 0.00% | −1,712−9.7% | Reduced |
| ProShare Advisors LLC | 15,956 | $112.5K | 0.00% | −2,589−14.0% | Reduced |
| Quantinno Capital Management LP | 14,806 | $104.4K | 0.00% | +3,525+31.2% | Added |
| Omers Administration Corp | 14,600 | $102.9K | 0.00% | +14,600 | New |
| Lazard Asset Management LLC | 14,360 | $101.2K | 0.00% | +595+4.3% | Added |
| Voya Investment Management LLC | 13,242 | $93.4K | 0.00% | −6,373−32.5% | Reduced |
| Tower Research Capital LLC (TRC) | 13,152 | $92.7K | 0.00% | +7,908+150.8% | Added |
| New York State Common Retirement Fund | 12,132 | $85.5K | 0.00% | 00.0% | Unchanged |
| KLP Kapitalforvaltning AS | 11,800 | $83.2K | 0.00% | 00.0% | Unchanged |
| Sherbrooke Park Advisers LLC | 11,457 | $80.8K | 0.04% | −13,541−54.2% | Reduced |
| Prelude Capital Management, LLC | 10,641 | $75.0K | 0.01% | −8,898−45.5% | Reduced |
| Citigroup Inc | 7,973 | $56.2K | 0.00% | −100,398−92.6% | Reduced |
| Quantbot Technologies LP | 7,490 | $52.8K | 0.00% | −52−0.7% | Reduced |
| Quarry LP | 7,009 | $49.4K | 0.01% | +7,009 | New |
| CWM, LLC | 6,322 | $45.0K | 0.00% | −11,846−65.2% | Reduced |
| Ameritas Investment Partners, Inc. | 6,013 | $42.4K | 0.00% | −1,336−18.2% | Reduced |
| Federated Hermes, Inc. | 5,586 | $39.4K | 0.00% | +5,586 | New |
| Sterling Capital Management LLC | 4,726 | $33.3K | 0.00% | +2,871+154.8% | Added |
| Mirae Asset Global Investments Co., Ltd. | 3,960 | $27.9K | 0.00% | +44+1.1% | Added |
| TSFG, LLC | 3,400 | $24.0K | 0.00% | 00.0% | Unchanged |
| GF Fund Management Co. Ltd. | 2,204 | $15.5K | 0.00% | −378−14.6% | Reduced |
| Federation des caisses Desjardins du Quebec | 2,024 | $14.3K | 0.00% | 00.0% | Unchanged |
| Amalgamated Bank | 1,782 | $13.0K | 0.00% | 00.0% | Unchanged |
| Antipodes Partners Ltd | 1,731 | $12.2K | 0.00% | −1,275−42.4% | Reduced |
| Bullock Wealth Management Group | 1,443 | $9.93K | 0.00% | +1,443 | New |
| Comerica Bank | 1,070 | $7.54K | 0.00% | +286+36.5% | Added |
| Nisa Investment Advisors, LLC | 1,057 | $7.45K | 0.00% | +11+1.1% | Added |
| SRS Capital Advisors, Inc. | 1,033 | $7.28K | 0.00% | +1,033 | New |
| Optiver Holding B.V. | 1,012 | $7.13K | 0.00% | +1,012 | New |
| Jones Financial Companies LLLP | 1,002 | $6.78K | 0.00% | +1,000+50,000.0% | Added |
| Clear Street Markets LLC | 807 | $5.69K | 0.00% | +807 | New |
| Versant Capital Management, Inc | 604 | $4.26K | 0.00% | 00.0% | Unchanged |
| IFP Advisors, Inc | 462 | $3.26K | 0.00% | +404+696.6% | Added |
| Steward Partners Investment Advisory, LLC | 300 | $2.12K | 0.00% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 296 | $2.00K | 0.00% | 00.0% | Unchanged |
| Washington Trust Advisors, Inc. | 274 | $1.93K | 0.00% | −68−19.9% | Reduced |
| US Bancorp | 264 | $1.86K | 0.00% | +240+1,000.0% | Added |
| Essential Partners LLC | 259 | $1.83K | 0.00% | +259 | New |
| EverSource Wealth Advisors, LLC | 231 | $1.63K | 0.00% | −65−22.0% | Reduced |
| Rothschild Investment LLC | 225 | $1.59K | 0.00% | +105+87.5% | Added |
| Allworth Financial LP | 126 | $889 | 0.00% | −4−3.1% | Reduced |
| SBI Securities Co., Ltd. | 81 | $571 | 0.00% | +2+2.5% | Added |
| Parkside Financial Bank & Trust | 75 | $529 | 0.00% | +75 | New |
| Farther Finance Advisors, LLC | 72 | $508 | 0.00% | +25+53.2% | Added |
| Rise Advisors, LLC | 69 | $486 | 0.00% | +69 | New |
| Sunbelt Securities, Inc. | 66 | $465 | 0.00% | +66 | New |
| Global Trust Asset Management, LLC | 50 | $353 | 0.00% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 47 | $331 | 0.00% | −373−88.8% | Reduced |
| GAMMA Investing LLC | 39 | $275 | 0.00% | −8−17.0% | Reduced |
| Clearstead Advisors, LLC | 39 | $275 | 0.00% | +36+1,200.0% | Added |
| Signaturefd, LLC | 33 | $233 | 0.00% | −142−81.1% | Reduced |
| Advisory Services Network, LLC | 11 | $78 | 0.00% | +11 | New |
| Smartleaf Asset Management LLC | 5 | $34 | 0.00% | 00.0% | Unchanged |
| Larson Financial Group LLC | 4 | $28 | 0.00% | +4 | New |
| Covestor Ltd | 55 | $0 | 0.00% | +43+358.3% | Added |
| Polar Capital Holdings Plc | 0 | $0 | 0.00% | −2,109,177−100.0% | Sold out |
| EcoR1 Capital, LLC | 0 | $0 | 0.00% | −862,068−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −391,280−100.0% | Sold out |
| Y-Intercept (Hong Kong) Ltd | 0 | $0 | 0.00% | −281,528−100.0% | Sold out |
| Cubist Systematic Strategies, LLC | 0 | $0 | 0.00% | −193,857−100.0% | Sold out |
| UBS Oconnor LLC | 0 | $0 | 0.00% | −107,249−100.0% | Sold out |
| Woodline Partners LP | 0 | $0 | 0.00% | −100,516−100.0% | Sold out |
| Dark Forest Capital Management LP | 0 | $0 | 0.00% | −78,422−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −63,546−100.0% | Sold out |
| Nebula Research & Development LLC | 0 | $0 | 0.00% | −60,665−100.0% | Sold out |
| Bayesian Capital Management, LP | 0 | $0 | 0.00% | −28,100−100.0% | Sold out |
| Ieq Capital, LLC | 0 | $0 | 0.00% | −27,948−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −26,480−100.0% | Sold out |
| Corton Capital Inc. | 0 | $0 | 0.00% | −24,411−100.0% | Sold out |
| Optimize Financial Inc | 0 | $0 | 0.00% | −17,832−100.0% | Sold out |
| Cerity Partners LLC | 0 | $0 | 0.00% | −14,417−100.0% | Sold out |
| Virginia Retirement Systems Et Al | 0 | $0 | 0.00% | −11,700−100.0% | Sold out |
| Wealth Enhancement Advisory Services, LLC | 0 | $0 | 0.00% | −10,262−100.0% | Sold out |
| Prudential Financial Inc | 0 | $0 | 0.00% | −10,682−100.0% | Sold out |
| Entropy Technologies, LP | 0 | $0 | 0.00% | −10,330−100.0% | Sold out |
| Steel Peak Wealth Management LLC | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| BIT Capital GmbH | 0 | $0 | 0.00% | −8,413−100.0% | Sold out |
| Quintet Private Bank (Europe) S.A. | 0 | $0 | 0.00% | −3,313−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −1,346−100.0% | Sold out |
| Raymond James Financial Inc | 0 | $0 | 0.00% | −1,231−100.0% | Sold out |
| Caitong International Asset Management Co., Ltd | 0 | $0 | 0.00% | −918−100.0% | Sold out |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 0 | $0 | 0.00% | −750−100.0% | Sold out |