Day One Biopharmaceuticals, Inc. (DAWN) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

0Shares Outstanding

7,803,750Shares held by institutions

$167,156,325Value of institutional holdings

83.74%Institutional ownership %

2.42%Shares Changed QoQ

173No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Day One Biopharmaceuticals, Inc. (NASDAQ:DAWN) showed up in the 13F filings of 179 institutional investors as of December 2025.

These investors collectively held 78.0% of Day One Biopharmaceuticals's outstanding shares in December 2025, down from 85.2% in September 2025.
They increased total shares held in Day One Biopharmaceuticals by 3.18% from the prior quarter, while the number of investors in DAWN increased 10.49% year over year.
During the quarter, 109 of these 179 funds increased positions in DAWN, 47 reduced exposure, and 23 held steady.
Altogether, these fund groups held 80.62Mn shares in DAWN by December 2025, up by 2.48Mn shares quarter on quarter, and down 14.66Mn shares year over year.
As of December 31, 2025, the biggest holder of Day One Biopharmaceuticals is BlackRock, Inc. at 8.84Mn shares, representing 8.55% of shares outstanding.
The most significant purchases of DAWN for the quarter ending December 2025 came from Vestal Point Capital, LP (2.52Mn), Jefferies Financial Group Inc. (1.12Mn), State Street Corp (1.05Mn), JACOBS LEVY EQUITY MANAGEMENT, INC (729.28K), SUSQUEHANNA INTERNATIONAL GROUP, LLP (708.81K).
Leading sellers of Day One Biopharmaceuticals shares for the quarter ending December 2025 were FMR LLC (4.38Mn), Franklin Resources Inc (3.42Mn), Bank Of America Corp /De/ (1.3Mn), DEERFIELD MANAGEMENT COMPANY, L.P. (982.28K), Hudson Bay Capital Management LP (940.0K).
Per Business Quant data, the top 10 holders of Day One Biopharmaceuticals for the quarter ending December 2025 are BlackRock, Inc. (8.84Mn), Atlas Venture Life Science Advisors, LLC (6.41Mn), VANGUARD GROUP INC (6.28Mn), FMR LLC (5.72Mn), Vestal Point Capital, LP (5.2Mn), State Street Corp (4.29Mn), DEERFIELD MANAGEMENT COMPANY, L.P. (3.72Mn), Pictet Asset Management Holding SA (2.99Mn), AIGH Capital Management LLC (1.99Mn), GEODE CAPITAL MANAGEMENT, LLC (1.88Mn).

179 Institutional Holders

7,803,750 Total Shares Held

Rows:

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Owner Name	Date	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	-163,881	-1.82%	$0.00
VANGUARD GROUP INC	31 Dec, 2025	101,047	1.63%	$0.00
Atlas Venture Life Science Advisors, LLC	31 Dec, 2025	-17,697	-0.28%	$0.00
Barclays Plc	31 Dec, 2025	-190,233	-39.42%	$0.00
FMR LLC	31 Dec, 2025	-4,380,660	-43.38%	$0.00
Vestal Point Capital, LP	31 Dec, 2025	2,525,000	94.39%	$0.00
HSBC HOLDINGS PLC	31 Dec, 2025	-11,115	-10.12%	$0.00
State Street Corp	31 Dec, 2025	1,049,122	32.38%	$0.00
Pictet Asset Management Holding SA	31 Dec, 2025	617,668	26.03%	$0.00
Rockefeller Capital Management L.P.	31 Dec, 2025	2,000	0.00%	$0.00
DEERFIELD MANAGEMENT COMPANY, L.P.	31 Dec, 2025	-982,282	-20.88%	$0.00
AIGH Capital Management LLC	31 Dec, 2025	471,529	31.01%	$0.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	116,574	6.62%	$0.00
Qube Research & Technologies Ltd	31 Dec, 2025	318,893	27.31%	$0.00
Hudson Bay Capital Management LP	31 Dec, 2025	-940,000	-35.61%	$0.00
Jump Financial, LLC	31 Dec, 2025	394,573	144.77%	$0.00
Morgan Stanley	31 Dec, 2025	246,245	18.88%	$0.00
Pale Fire Capital SE	31 Dec, 2025	241,596	79.88%	$0.00
Goldman Sachs Group Inc	31 Dec, 2025	134,797	9.83%	$0.00
Nuveen, LLC	31 Dec, 2025	372,083	247.44%	$0.00

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