Fund shareholders of Day One Biopharmaceuticals Inc
ISIN US23954D1090 · United States
- Fund shareholders
- 142
- Of which ETFs
- 25 117 other funds
- Value held
- ≈ 329.3M $ 329.1M $ · 119K €
- Share of capital
- 17.3 % of 103.3M shares on Apr 15, 2026
142 funds hold this company. This table lists the 141 that declare it in a regulatory filing. 1 more fund publishes its holdings in its own report. It is not in the table.
| Fund | Shares | Value | Weight in fund | Share of capital | |
|---|---|---|---|---|---|
| BlackRock Advantage Small Cap Growth Fund BlackRock Funds | 2,650 | 56.8K $ | 0.01 % | 0.00 % | as of Mar 31, 2026 ↗ |
| JNL/DFA U.S. Small Cap Fund JNL Series Trust | 2,647 | 56.8K $ | 0.01 % | 0.00 % | as of Mar 31, 2026 ↗ |
| EQ/Franklin Small Cap Value Managed Volatility Portfolio EQ Advisors Trust | 2,535 | 54.4K $ | 0.02 % | 0.00 % | as of Mar 31, 2026 ↗ |
| LVIP Dimensional U.S. Core Equity 1 Fund LINCOLN VARIABLE INSURANCE PRODUCTS TRUST | 2,358 | 50.6K $ | 0.00 % | 0.00 % | as of Mar 31, 2026 ↗ |
| Invesco Russell 2000 Dynamic Multifactor ETF Invesco Exchange-Traded Self-Indexed Fund Trust | 2,152 | 22.8K $ | 0.01 % | 0.00 % | as of Feb 28, 2026 ↗ |
| Destinations Small-Mid Cap Equity Fund Brinker Capital Destinations Trust | 2,151 | 22.8K $ | 0.00 % | 0.00 % | as of Feb 28, 2026 ↗ |
| Penn Series Small Cap Index Fund Penn Series Funds Inc | 2,100 | 45K $ | 0.06 % | 0.00 % | as of Mar 31, 2026 ↗ |
| State Street(R) SPDR(R) Portfolio MSCI Global Stock Market ETF SPDR INDEX SHARES FUNDS | 2,094 | 44.9K $ | 0.00 % | 0.00 % | as of Mar 31, 2026 ↗ |
| AZL DFA U.S. Core Equity Fund Allianz Variable Insurance Products Trust | 1,870 | 40.1K $ | 0.01 % | 0.00 % | as of Mar 31, 2026 ↗ |
| State Street Total Return V.I.S. Fund STATE STREET VARIABLE INSURANCE SERIES FUNDS INC | 1,833 | 39.3K $ | 0.00 % | 0.00 % | as of Mar 31, 2026 ↗ |
| VIP Total Market Index Portfolio Variable Insurance Products Fund II | 1,802 | 38.6K $ | 0.00 % | 0.00 % | as of Mar 31, 2026 ↗ |
| Avantis U.S. Equity ETF American Century ETF Trust | 1,743 | 18.5K $ | 0.00 % | 0.00 % | as of Feb 28, 2026 ↗ |
| Total Stock Market Index Trust John Hancock Variable Insurance Trust | 1,697 | 36.4K $ | 0.00 % | 0.00 % | as of Mar 31, 2026 ↗ |
| BlackRock Advantage SMID Cap V.I. Fund BlackRock Variable Series Funds, Inc. | 1,689 | 36.2K $ | 0.02 % | 0.00 % | as of Mar 31, 2026 ↗ |
| VIP Disciplined Small Cap Portfolio Variable Insurance Products Fund II | 1,615 | 34.6K $ | 0.01 % | 0.00 % | as of Mar 31, 2026 ↗ |
| AST Small-Cap Equity Portfolio Advanced Series Trust | 1,336 | 28.6K $ | 0.00 % | 0.00 % | as of Mar 31, 2026 ↗ |
| Guggenheim Multi-Hedge Strategies Fund Rydex Series Funds | 1,336 | 28.6K $ | 0.30 % | 0.00 % | as of Mar 31, 2026 ↗ |
| JNL/DFA U.S. Core Equity Fund JNL Series Trust | 1,248 | 26.8K $ | 0.00 % | 0.00 % | as of Mar 31, 2026 ↗ |
| LVIP Dimensional U.S. Core Equity 2 Fund LINCOLN VARIABLE INSURANCE PRODUCTS TRUST | 1,142 | 24.5K $ | 0.00 % | 0.00 % | as of Mar 31, 2026 ↗ |
| AVIP BlackRock Advantage Small Cap Growth Portfolio AuguStar Variable Insurance Products Fund Inc | 945 | 20.3K $ | 0.02 % | 0.00 % | as of Mar 31, 2026 ↗ |
| Bridge Builder Small/Mid Cap Growth Fund Bridge Builder Trust | 767 | 16.4K $ | 0.00 % | 0.00 % | as of Mar 31, 2026 ↗ |
| Goldman Sachs Absolute Return Tracker Fund GOLDMAN SACHS TRUST | 753 | 16.1K $ | 0.00 % | 0.00 % | as of Mar 31, 2026 ↗ |
| TIAA Separate Account VA-1 - Stock Index Account TIAA Separate Account VA-1 | 731 | 15.7K $ | 0.00 % | 0.00 % | as of Mar 31, 2026 ↗ |
| Nuveen Life Stock Index Fund TIAA-CREF Life Funds | 722 | 15.5K $ | 0.00 % | 0.00 % | as of Mar 31, 2026 ↗ |
| Blackstone Alternative Multi-Strategy Fund Blackstone Alternative Investment Funds | 500 | 10.7K $ | 0.00 % | 0.00 % | as of Mar 31, 2026 ↗ |
| State Street Balanced Index Fund STATE STREET INSTITUTIONAL INVESTMENT TRUST | 436 | 9.3K $ | 0.00 % | 0.00 % | as of Mar 31, 2026 ↗ |
| EQ/Morgan Stanley Small Cap Growth Portfolio EQ Advisors Trust | 434 | 9.3K $ | 0.00 % | 0.00 % | as of Mar 31, 2026 ↗ |
| Russell 2000 2x Strategy Fund Rydex Dynamic Funds | 367 | 7.9K $ | 0.01 % | 0.00 % | as of Mar 31, 2026 ↗ |
| PD Small-Cap Growth Index Portfolio PACIFIC SELECT FUND | 323 | 6.9K $ | 0.01 % | 0.00 % | as of Mar 31, 2026 ↗ |
| PROFUND VP ULTRA SMALL CAP ProFunds | 262 | 5.6K $ | 0.04 % | 0.00 % | as of Mar 31, 2026 ↗ |
| Wilshire 5000 Index Fund Wilshire Mutual Funds Inc | 242 | 5.2K $ | 0.00 % | 0.00 % | as of Mar 31, 2026 ↗ |
| Enterprise Mergers and Acquisitions Fund Gabelli 787 Fund, Inc. | 200 | 4.3K $ | 0.01 % | 0.00 % | as of Mar 31, 2026 ↗ |
| PROFUND VP SMALL CAP ProFunds | 198 | 4.2K $ | 0.04 % | 0.00 % | as of Mar 31, 2026 ↗ |
| Russell 2000 Fund Rydex Series Funds | 169 | 3.6K $ | 0.03 % | 0.00 % | as of Mar 31, 2026 ↗ |
| Avantis Total Equity Markets ETF American Century ETF Trust | 122 | 1.3K $ | 0.00 % | 0.00 % | as of Feb 28, 2026 ↗ |
| Russell 2000 1.5x Strategy Fund Rydex Series Funds | 101 | 2.2K $ | 0.04 % | 0.00 % | as of Mar 31, 2026 ↗ |
| ProShares Hedge Replication ETF ProShares Trust | 81 | 858.6 $ | 0.00 % | 0.00 % | as of Feb 28, 2026 ↗ |
| Columbia Research Enhanced Small Cap ETF Columbia ETF Trust I | 73 | 1.6K $ | 0.05 % | 0.00 % | as of Mar 31, 2026 ↗ |
| ProShares Russell 2000 Dynamic Buffer ETF ProShares Trust | 24 | 254.4 $ | 0.02 % | 0.00 % | as of Feb 28, 2026 ↗ |
| Russell 2000(R) 1.5x Strategy Fund Rydex Variable Trust | 19 | 407.4 $ | 0.01 % | 0.00 % | as of Mar 31, 2026 ↗ |
| VIFAG 2002, SICAV S.A. GESALCALA, S.A., S.G.I.I.C. | 119K € | 0.14 % | as of Dec 31, 2025 ↗ |
The funds most exposed to it
The weight is the share of a fund's net assets. The holders table ranks funds by number of shares. This one ranks them by the weight of the company in each fund.
| Fund | Weight in fund | |
|---|---|---|
| Golden Eagle Dynamic Hypergrowth ETF ETF Opportunities Trust | 2.50 % | as of Mar 31, 2026 ↗ |
| First Trust Merger Arbitrage Fund INVESTMENT MANAGERS SERIES TRUST II | 1.67 % | as of Mar 31, 2026 ↗ |
| Comstock Capital Value Fund Comstock Funds, Inc. | 1.46 % | as of Mar 31, 2026 ↗ |
| Tema Oncology ETF Tema ETF Trust | 0.81 % | as of Feb 28, 2026 ↗ |
| AQR Diversified Arbitrage Fund AQR Funds | 0.71 % | as of Mar 31, 2026 ↗ |
| ALPS Medical Breakthroughs ETF ALPS ETF TRUST | 0.70 % | as of Feb 28, 2026 ↗ |
| MFS Blended Research Small Cap Equity Portfolio MFS VARIABLE INSURANCE TRUST III | 0.70 % | as of Mar 31, 2026 ↗ |
| Pictet - Biotech Pictet Asset Management (Europe) S.A. | 0.63 % | as of Sep 30, 2025 ↗ |
| NORTH SQUARE KENNEDY MICROCAP FUND Exchange Place Advisors Trust | 0.49 % | as of Feb 28, 2026 ↗ |
| Nuveen Life Small Cap Equity Fund TIAA-CREF Life Funds | 0.47 % | as of Mar 31, 2026 ↗ |
Quarter after quarter
Each row is one quarter of SEC filings, newest first. The change compares each quarter with the one before.
| Quarter | Shareholders | Change | Shares | Change |
|---|---|---|---|---|
| 2026Q2 | 140 | -46 | 17,832,555 | -17.9 % |
| 2026Q1 | 186 | -1 | 21,732,676 | -15.5 % |
| 2025Q4 | 187 | 0 | 25,720,719 | -8.2 % |
| 2025Q3 | 187 | 0 | 28,022,927 | -0.5 % |
| 2025Q2 | 187 | -1 | 28,172,415 | -2.5 % |
| 2025Q1 | 188 | -4 | 28,881,560 | +9.2 % |
| 2024Q4 | 192 | +12 | 26,438,325 | +37.7 % |
| 2024Q3 | 180 | +3 | 19,197,485 | -3.0 % |
| 2024Q2 | 177 | +8 | 19,794,606 | -1.0 % |
| 2024Q1 | 169 | 0 | 19,986,768 | +4.4 % |
| 2023Q4 | 169 | 19,149,117 |
Institutional managers
198 managers declare this company to the SEC (Form 13F). The table shows the 25 largest.
| Manager | Shares | Value | |
|---|---|---|---|
| BlackRock, Inc. | 7,044,487 | 151M $ | as of Mar 31, 2026 |
| GLAZER CAPITAL, LLC | 4,683,687 | 100.4K $ | as of Mar 31, 2026 |
| FIL Ltd | 4,131,907 | 88.6M $ | as of Mar 31, 2026 |
| Kryger Capital LLC | 3,896,485 | 83.5M $ | as of Mar 31, 2026 |
| DEERFIELD MANAGEMENT COMPANY, L.P. | 3,723,131 | 79.8M $ | as of Mar 31, 2026 |
| JPMORGAN CHASE & CO | 3,134,753 | 67.1M $ | as of Mar 31, 2026 |
| STATE STREET CORP | 2,869,876 | 61.5M $ | as of Mar 31, 2026 |
| Balyasny Asset Management L.P. | 2,625,235 | 56.3M $ | as of Mar 31, 2026 |
| AQR Arbitrage LLC | 2,462,154 | 52.8M $ | as of Mar 31, 2026 |
| UBS Group AG | 2,305,123 | 49.4M $ | as of Mar 31, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | 1,954,735 | 41.9M $ | as of Mar 31, 2026 |
| Qube Research & Technologies Ltd | 1,954,552 | 41.9M $ | as of Mar 31, 2026 |
| MILLENNIUM MANAGEMENT LLC | 1,927,557 | 41.3M $ | as of Mar 31, 2026 |
| BANK OF AMERICA CORP /DE/ | 1,902,868 | 40.8M $ | as of Mar 31, 2026 |
| O'Connor Alternative Investments LLC | 1,867,553 | 40M $ | as of Mar 31, 2026 |
| Nuveen, LLC | 1,823,998 | 39.1M $ | as of Mar 31, 2026 |
| PERCEPTIVE ADVISORS LLC | 1,755,799 | 37.6M $ | as of Mar 31, 2026 |
| ODDO BHF ASSET MANAGEMENT SAS | 1,550,000 | 33.2M $ | as of Mar 31, 2026 |
| SOROS FUND MANAGEMENT LLC | 1,539,100 | 33M $ | as of Mar 31, 2026 |
| First Trust Capital Management L.P. | 1,496,007 | 32.1M $ | as of Mar 31, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | 1,296,984 | 27.8M $ | as of Mar 31, 2026 |
| ALLIANCEBERNSTEIN L.P. | 1,214,783 | 11.3M $ | as of Mar 31, 2026 |
| GOLDMAN SACHS GROUP INC | 979,238 | 21M $ | as of Mar 31, 2026 |
| DAFNA Capital Management LLC | 978,463 | 21M $ | as of Mar 31, 2026 |
| WATER ISLAND CAPITAL LLC | 944,247 | 20.2M $ | as of Mar 31, 2026 |
Declared shareholders of Day One Biopharmaceuticals Inc
There are 4 beneficial ownership filings. These stakes do not add up. An asset manager that files includes its own funds, which already appear among the funds on this page.
| Shareholder | Declared stake | Shares | |
|---|---|---|---|
| AI Day1 LLC and 3 others | 0.00 % | 0 | as of Apr 23, 2026 · SCHEDULE 13D |
| Atlas Venture Fund XI, L.P. and 8 others | 0.00 % | 0 | as of Mar 31, 2026 · SCHEDULE 13G |
| FMR LLC and 1 other | 0.00 % | 23,640 | as of Mar 31, 2026 · SCHEDULE 13G |
| Vestal Point Capital, LP and 1 other | 0.00 % | 0 | as of Mar 31, 2026 · SCHEDULE 13G |
Cite this page
Titelia. "Fund shareholders of Day One Biopharmaceuticals Inc". https://titelia.com/en/stocks/day-one-biopharmaceuticals-inc-US23954D1090