Day One Biopharmaceuticals, Inc. - Common Stock, par value $0.0001 per share (DAWN)

Q: What does CUSIP 23954D109 represent in this 13F holders report?

CUSIP 23954D109 is the security identifier for DAWN - Day One Biopharmaceuticals, Inc. - Common Stock, par value $0.0001 per share used to aggregate holder disclosures.

Q: How many institutions held DAWN - Day One Biopharmaceuticals, Inc. - Common Stock, par value $0.0001 per share in Q3 2021?

43 institutional investors reported DAWN - Day One Biopharmaceuticals, Inc. - Common Stock, par value $0.0001 per share for Q3 2021. Use the holders table for investor-level position and value details.

CUSIP: 23954D109

Q3 2021 13F Holders as of 30 Sep 2021

Type / Class: Equity / Common Stock, par value $0.0001 per share
Shares outstanding: 103,269,345
Total 13F shares: 19,043,827
Share change: +1,355,861
Total reported value: $450,147,328
Price per share: $23.73
Number of holders: 43
Value change: +$32,649,130
Number of buys: 29
Number of sells: 15

Quarterly Holders Quick Answers

What is CUSIP 23954D109?
CUSIP 23954D109 identifies DAWN - Day One Biopharmaceuticals, Inc. - Common Stock, par value $0.0001 per share in SEC institutional holdings data.

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Newer quarter: Q4 2021
Previous quarter: Q2 2021

Recent filing periods for CUSIP 23954D109:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Top shareholders of DAWN - Day One Biopharmaceuticals, Inc. - Common Stock, par value $0.0001 per share (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
RA CAPITAL MANAGEMENT, L.P.	13F	Company	4.8%	4,965,588	$113,066,000	—	30 Jun 2021	13F
FMR LLC	13F	Company	2.2%	2,312,450	$52,655,000	—	30 Jun 2021	13F
PRICE T ROWE ASSOCIATES INC /MD/	13F	Company	1.5%	1,505,396	$33,434,000	—	30 Jun 2021	13F
VIKING GLOBAL INVESTORS LP	13F	Company	1.3%	1,341,396	$30,544,000	—	30 Jun 2021	13F
JANUS HENDERSON GROUP PLC	13F	Company	1.3%	1,297,770	$27,862,000	—	30 Jun 2021	13F
Boxer Capital, LLC	13F	Company	1.2%	1,189,943	$27,095,000	—	30 Jun 2021	13F
BVF INC/IL	13F	Company	0.89%	918,975	$20,925,000	—	30 Jun 2021	13F
DEERFIELD MANAGEMENT COMPANY, L.P.	13F	Company	0.79%	818,980	$18,648,000	—	30 Jun 2021	13F
PERCEPTIVE ADVISORS LLC	13F	Company	0.73%	756,047	$17,215,000	—	30 Jun 2021	13F
VANGUARD GROUP INC	13F	Company	0.6%	619,384	$14,104,000	—	30 Jun 2021	13F
FRANKLIN RESOURCES INC	13F	Company	0.5%	518,966	$11,817,000	—	30 Jun 2021	13F
DRIEHAUS CAPITAL MANAGEMENT LLC	13F	Company	0.42%	434,423	$9,892,000	—	30 Jun 2021	13F
Rock Springs Capital Management LP	13F	Company	0.36%	373,739	$8,510,000	—	30 Jun 2021	13F
Samsara BioCapital, LLC	13F	Company	0.2%	202,500	$4,611,000	—	30 Jun 2021	13F
HealthCor Management, L.P.	13F	Company	0.1%	103,717	$2,362,000	—	30 Jun 2021	13F
Alyeska Investment Group, L.P.	13F	Company	0.1%	103,200	$2,350,000	—	30 Jun 2021	13F
LMR Partners LLP	13F	Company	0.05%	50,000	$1,139,000	—	30 Jun 2021	13F
Marshall Wace North America L.P.	13F	Company	0.04%	41,147	$937,000	—	30 Jun 2021	13F
Logos Global Management LP	13F	Company	0.04%	37,069	$844,000	—	30 Jun 2021	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	0.03%	34,935	$795,000	—	30 Jun 2021	13F
Squarepoint Ops LLC	13F	Company	0.02%	18,927	$431,000	—	30 Jun 2021	13F
TD ASSET MANAGEMENT INC	13F	Company	0.02%	16,856	$400,000	—	30 Jun 2021	13F
NORTHERN TRUST CORP	13F	Company	0.01%	12,718	$290,000	—	30 Jun 2021	13F
Virtu Financial LLC	13F	Company	0.01%	12,497	$285,000	—	30 Jun 2021	13F
GOLDMAN SACHS GROUP INC	13F	Company	0.01%	11,594	$264,000	—	30 Jun 2021	13F
ExodusPoint Capital Management, LP	13F	Company	0.01%	9,372	$213,000	—	30 Jun 2021	13F
Maven Securities LTD	13F	Company	0.01%	9,000	$210,000	—	30 Jun 2021	13F
BlackRock Finance, Inc.	13F	Company	0%	4,372	$99,000	—	30 Jun 2021	13F
MORGAN STANLEY	13F	Company	0%	2,374	$54,000	—	30 Jun 2021	13F
Capital Analysts, LLC	13F	Company	0%	750	$17,000	—	30 Jun 2021	13F
BANK OF AMERICA CORP /DE/	13F	Company	0%	700	$16,000	—	30 Jun 2021	13F
JPMORGAN CHASE & CO	13F	Company	0%	54	$1,000	—	30 Jun 2021	13F

Institutional Holders of Day One Biopharmaceuticals, Inc. - Common Stock, par value $0.0001 per share (DAWN) as of Q3 2021

As of 30 Sep 2021, Day One Biopharmaceuticals, Inc. - Common Stock, par value $0.0001 per share (DAWN) was held by 43 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 19,043,827 shares. The largest 10 holders included RA CAPITAL MANAGEMENT, L.P., FMR LLC, DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C), PRICE T ROWE ASSOCIATES INC /MD/, VIKING GLOBAL INVESTORS LP, BOXER CAPITAL, LLC, JANUS HENDERSON GROUP PLC, VANGUARD GROUP INC, BVF INC/IL, and FRANKLIN RESOURCES INC. This page lists 43 institutional shareholders reporting positions in this security for the Q3 2021 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q3 2021 vs Q2 2021 Across Filers

Q2 2021 holders

Q3 2021 holders

Holder diff

Investor	Q2 2021 Shares	Q3 2021 Shares	Share Diff	Share Chg %	Q2 2021 Value $	Q3 2021 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.