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.
Q3 2025 vs. Q2 2025
How the institutions holding Day One Biopharmaceuticals, Inc. changed between Q2 2025 and Q3 2025.
All holders in Q3 2025All holders in Q2 2025
| Measure | Q2 2025 | Of which not filed for Q3 2025 | Q3 2025 | Change |
|---|---|---|---|---|
| Holders | 174 | 2 | 173 | +1 |
| Shares | 86.3M | 180.0K | 85.6M | −543.9K (−0.6%) |
| Value | $561.1M | $1.17M | $603.5M | +$43.5M (+7.8%) |
2 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so the changes leave them out.
New holders (33)
Institutions that held Day One Biopharmaceuticals, Inc. at the end of Q3 2025 but not at the end of Q2 2025.
Sold out (32)
Institutions that held Day One Biopharmaceuticals, Inc. at the end of Q2 2025 and filed for Q3 2025 without it.
Not filed for Q3 2025 yet (2)
Institutions that held Day One Biopharmaceuticals, Inc. at the end of Q2 2025 and haven't filed a 13F for Q3 2025. Not filing isn't selling, so they aren't counted as sold out.
| Institution | Shares, Q2 2025 | Value, Q2 2025 |
|---|---|---|
| Norges Bank | 169,000 | $1.10M |
| E Fund Management Co., Ltd. | 10,988 | $71.4K |