Day One Biopharmaceuticals Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NasdaqGS:DAWN Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Role	Shares	Max Price
21 Jun 24	SellUS$131,877	Sona Saira Ramasastry	Individual		10,000	US$13.19

Insider Trading Volume

Insider Buying: Insufficient data to determine if insiders have bought more shares than they have sold in the past 3 months.

Ownership Breakdown

What is the ownership structure of DAWN?
Owner Type	Number of Shares	Ownership Percentage
Individual Insiders	4,198,612	3.66%
Private Companies	12,929,322	11.3%
VC/PE Firms	14,301,978	12.5%
Institutions	83,130,748	72.6%

Dilution of Shares: Shareholders have been diluted in the past year, with total shares outstanding growing by 15.9%.

Top Shareholders

Top 25 shareholders own 93.97% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
12.8%	Access Industries, Inc.	12,929,322	US$165.4m	0%	no data
11.2%	FMR LLC	11,287,327	US$144.4m	52.7%	0.01%
7.81%	RA Capital Management, L.P.	7,871,721	US$100.7m	0%	1.22%
6.38%	Atlas Venture L.P.	6,430,257	US$82.2m	0%	9.65%
5.84%	The Vanguard Group, Inc.	5,887,210	US$75.3m	27.3%	no data
4.83%	Braidwell LP	4,873,853	US$62.3m	60.5%	2.77%
4.67%	BlackRock, Inc.	4,709,162	US$60.2m	3.88%	no data
3.8%	Franklin Resources, Inc.	3,835,245	US$49.1m	1.4%	0.02%
3.08%	Fairmount Funds Management LLC	3,103,448	US$39.7m	0%	3.17%
2.96%	Pictet Asset Management Limited	2,982,666	US$38.1m	4.6%	0.03%
2.8%	State Street Global Advisors, Inc.	2,823,817	US$36.1m	-0.11%	no data
2.72%	Estuary Capital Management, LP	2,743,780	US$35.1m	4.12%	9.02%
2.6%	Deerfield Management Company, L.P. Series C	2,617,713	US$33.5m	-10.5%	0.59%
2.54%	Viking Global Investors LP	2,558,563	US$32.7m	0%	0.11%
2.52%	T. Rowe Price Group, Inc.	2,544,863	US$32.5m	8.25%	no data
2.48%	Vestal Point Capital, LP	2,500,000	US$32.0m	100%	2.55%
2.16%	Janus Henderson Group plc	2,177,197	US$27.8m	18.4%	0.01%
2.1%	Maverick Capital, Ltd.	2,114,006	US$27.0m	74.5%	0.49%
2.02%	Samuel Blackman	2,034,015	US$26.0m	-3.03%	no data
1.81%	TimesSquare Capital Management, LLC	1,827,695	US$23.4m	8.24%	0.32%
1.7%	Jeremy Bender	1,717,215	US$22.0m	0.55%	no data
1.61%	Goldman Sachs Group, Investment Banking and Securities Investments	1,626,358	US$20.8m	-8.05%	0.01%
1.42%	Geode Capital Management, LLC	1,432,697	US$18.3m	10.5%	no data
1.18%	Tavistock Life Sciences	1,189,943	US$15.2m	0%	1.04%
0.94%	First Turn Management, LLC	947,878	US$12.1m	0%	2.06%

Company Analysis and Financial Data Status

Data	Last Updated (UTC time)
Company Analysis	2024/12/22 22:30
End of Day Share Price	2024/12/20 00:00
Earnings	2024/09/30
Annual Earnings	2023/12/31

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

Package	Data	Timeframe	Example US Source ^*
Company Financials	10 years	Income statement Cash flow statement Balance sheet	SEC Form 10-K SEC Form 10-Q
Analyst Consensus Estimates	+3 years	Forecast financials Analyst price targets	Analyst Research Reports Blue Matrix
Market Prices	30 years	Stock prices Dividends, Splits and Actions	ICE Market Data SEC Form S-1
Ownership	10 years	Top shareholders Insider trading	SEC Form 4 SEC Form 13D
Management	10 years	Leadership team Board of directors	SEC Form 10-K SEC Form DEF 14A
Key Developments	10 years	Company announcements	SEC Form 8-K

^* example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more here.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the world class team who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on .

Analyst Sources

Day One Biopharmaceuticals, Inc. is covered by 13 analysts. 10 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

Analyst	Institution
Alec Stranahan	BofA Global Research
Naureen Quibria	Capital One Securities, Inc.
Andrea Newkirk	Goldman Sachs