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 2024
Institutional positions in Day One Biopharmaceuticals, Inc. as of Mar 31, 2024. 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
- 148
- +9 vs. Q4 2023
- Shares held
- 72.8M
- −3.77M (−4.9%) vs. Q4 2023
- Total value
- $1.20B
- +$84.5M (+7.6%) vs. Q4 2023
- New holders
- 26
- 48 more added
- Sold out
- 17
- 44 more reduced
Compare with Q4 2023: 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 2024
Shares, value and share of portfolio for each institution holding Day One Biopharmaceuticals, Inc.; share changes are against Q4 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Norges Bank | 169,000 | $2.79M | 0.00% | 00.0% | Unchanged |
| Prudential Financial Inc | 169,522 | $2.80M | 0.00% | +169,522 | New |
| Citigroup Inc | 171,050 | $2.83M | 0.00% | +71,125+71.2% | Added |
| Simplify Asset Management Inc. | 175,018 | $2.89M | 0.28% | 00.0% | Unchanged |
| Nuveen Asset Management, LLC | 175,775 | $2.90M | 0.00% | 00.0% | Unchanged |
| Deutsche Bank AG | 178,174 | $2.94M | 0.00% | +1,018+0.6% | Added |
| Rafferty Asset Management, LLC | 193,224 | $3.19M | 0.01% | −43,123−18.2% | Reduced |
| Altitude Crest Partners Inc. | 195,497 | $3.23M | 1.38% | +195,497 | New |
| Samsara BioCapital, LLC | 196,425 | $3.24M | 0.50% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 215,383 | $3.56M | 0.00% | −18,815−8.0% | Reduced |
| D. E. Shaw & Co., Inc. | 224,219 | $3.70M | 0.00% | +28,730+14.7% | Added |
| Morgan Stanley | 232,550 | $3.84M | 0.00% | −101,889−30.5% | Reduced |
| Schonfeld Strategic Advisors LLC | 237,748 | $3.93M | 0.03% | +58,814+32.9% | Added |
| Propel Bio Management, LLC | 270,664 | $4.47M | 2.60% | 00.0% | Unchanged |
| Wellington Management Group LLP | 272,117 | $4.50M | 0.00% | +63,148+30.2% | Added |
| Woodline Partners LP | 272,538 | $4.50M | 0.04% | 00.0% | Unchanged |
| Candriam Luxembourg S.C.A. | 290,014 | $4.79M | 0.03% | 00.0% | Unchanged |
| Superstring Capital Management LP | 349,679 | $5.78M | 3.82% | −29,947−7.9% | Reduced |
| PFM Health Sciences, LP | 355,251 | $5.87M | 0.29% | −948,324−72.7% | Reduced |
| Nicholas Investment Partners, LP | 361,767 | $5.98M | 0.61% | +58,449+19.3% | Added |
| Charles Schwab Investment Management Inc | 457,652 | $7.56M | 0.00% | +4,718+1.0% | Added |
| Sphera Funds Management Ltd. | 492,627 | $8.14M | 1.32% | −20,373−4.0% | Reduced |
| Northern Trust Corp | 558,145 | $9.22M | 0.00% | −18,607−3.2% | Reduced |
| DAFNA Capital Management LLC | 666,463 | $11.0M | 2.51% | −20,000−2.9% | Reduced |
| Parkman Healthcare Partners LLC | 691,812 | $11.4M | 1.40% | +66,063+10.6% | Added |
| Driehaus Capital Management LLC | 719,011 | $11.9M | 0.12% | +235,772+48.8% | Added |
| Dimensional Fund Advisors LP | 981,572 | $16.2M | 0.00% | +203,655+26.2% | Added |
| Polar Capital Holdings Plc | 1,185,000 | $19.6M | 0.12% | −200,000−14.4% | Reduced |
| Boxer Capital, LLC | 1,189,943 | $19.7M | 0.97% | 00.0% | Unchanged |
| Maverick Capital LtdSuperinvestorMaverick Capital | 1,256,570 | $20.8M | 0.40% | +1,256,570 | New |
| First Turn Management, LLC | 1,318,207 | $21.8M | 3.26% | −382,742−22.5% | Reduced |
| Geode Capital Management, LLC | 1,376,961 | $22.8M | 0.00% | +28,142+2.1% | Added |
| Estuary Capital Management LP | 1,611,137 | $26.6M | 10.81% | +728,240+82.5% | Added |
| TimesSquare Capital Management, LLC | 1,635,145 | $27.0M | 0.39% | −30,920−1.9% | Reduced |
| Deerfield Management Company, L.P. (Series C) | 1,765,312 | $29.2M | 0.51% | +4,134+0.2% | Added |
| Janus Henderson Group PLC | 2,032,384 | $33.6M | 0.02% | +336,281+19.8% | Added |
| Goldman Sachs Group Inc | 2,137,491 | $35.3M | 0.01% | +18,642+0.9% | Added |
| Braidwell LP | 2,173,704 | $35.9M | 1.16% | −2,041,869−48.4% | Reduced |
| Price T Rowe Associates Inc | 2,299,764 | $38.0M | 0.00% | −17,000−0.7% | Reduced |
| Pictet Asset Management Holding SA | 2,375,137 | $39.2M | 0.04% | −196,431−7.6% | Reduced |
| Viking Global Investors LPSuperinvestorViking Global Investors | 2,558,563 | $42.3M | 0.16% | 00.0% | Unchanged |
| State Street Corp | 2,894,883 | $47.8M | 0.00% | −485,215−14.4% | Reduced |
| Franklin Resources Inc | 3,806,790 | $62.9M | 0.02% | −430,005−10.1% | Reduced |
| FMR LLC | 4,404,341 | $72.8M | 0.00% | +436,175+11.0% | Added |
| Vanguard Group Inc | 4,774,483 | $78.9M | 0.00% | +4,737+0.1% | Added |
| BlackRock Inc. | 5,031,435 | $83.1M | 0.00% | −94,636−1.8% | Reduced |
| Atlas Venture Life Science Advisors, LLC | 6,430,257 | $106.2M | 9.80% | −1,178,137−15.5% | Reduced |
| Ra Capital Management, L.P. | 7,809,852 | $129.0M | 1.64% | 00.0% | Unchanged |
| Baker Bros. Advisors LP | 0 | $0 | 0.00% | −1,000,000−100.0% | Sold out |
| Alyeska Investment Group, L.P. | 0 | $0 | 0.00% | −390,167−100.0% | Sold out |
| Pier Capital, LLC | 0 | $0 | 0.00% | −258,685−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −88,000−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −73,887−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −64,692−100.0% | Sold out |
| Prelude Capital Management, LLC | 0 | $0 | 0.00% | −42,500−100.0% | Sold out |
| Jupiter Asset Management Ltd | 0 | $0 | 0.00% | −36,671−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −30,378−100.0% | Sold out |
| Cetera Advisor Networks LLC | 0 | $0 | 0.00% | −24,946−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −15,927−100.0% | Sold out |
| Vontobel Holding Ltd. | 0 | $0 | 0.00% | −15,500−100.0% | Sold out |
| Cubist Systematic Strategies, LLC | 0 | $0 | 0.00% | −14,395−100.0% | Sold out |
| E Fund Management Co., Ltd. | 0 | $0 | 0.00% | −12,618−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −10,651−100.0% | Sold out |
| Sandia Investment Management LP | 0 | $0 | 0.00% | −5,980−100.0% | Sold out |
| The PNC Financial Services Group, Inc. | 0 | $0 | 0.00% | −61−100.0% | Sold out |