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Day One Biopharmaceuticals (DAWN) Institutional Ownership

Current Institutional Ownership Percentage: 87.95%
Number of Institutional Buyers (last 12 months): 111
Total Institutional Inflows (last 12 months): $443.33M

Number of Institutional Sellers (last 12 months): 49
Total Institutional Outflows (last 12 months): $145.11M

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DAWN Institutional Buying and Selling by Quarter

Day One Biopharmaceuticals Major Shareholders & Ownership History

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Reporting Date	Major Shareholder Name	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
6/18/2026	Western Wealth Management LLC	8,005	$172K	0.0%	N/A	0.008%
6/15/2026	Carmignac Gestion	13,691	$294K	0.0%	N/A	0.013%
5/29/2026	Perceptive Advisors LLC	1,755,799	$37.64M	0.7%	N/A	1.699%
5/21/2026	Groupe la Francaise	179,495	$3.85M	0.1%	N/A	0.174%
5/19/2026	Western Wealth Management LLC	8,005	$172K	0.0%	N/A	0.008%
5/19/2026	Bank of America Corp DE	1,902,868	$40.80M	0.0%	+75.6%	1.842%
5/19/2026	Janus Henderson Group PLC	546,428	$11.71M	0.0%	+2,465.4%	0.529%
5/19/2026	Oddo BHF Asset Management Sas	1,550,000	$33.23M	1.3%	N/A	1.500%
5/18/2026	ADAR1 Capital Management LLC	49,923	$1.07M	0.1%	N/A	0.048%
5/18/2026	California State Teachers Retirement System	67,463	$1.45M	0.0%	-6.6%	0.065%
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5/18/2026	Royal Bank of Canada	1,911	$41K	0.0%	-53.5%	0.002%
5/18/2026	Eversept Partners LP	183,902	$3.94M	0.2%	N/A	0.178%
5/16/2026	The Manufacturers Life Insurance Company	36,186	$776K	0.0%	+49.3%	0.035%
5/16/2026	Quantinno Capital Management LP	17,556	$376K	0.0%	+9.8%	0.017%
5/16/2026	Polar Asset Management Partners Inc.	630,410	$13.52M	0.3%	N/A	0.610%
5/16/2026	Lazard Asset Management LLC	9,364	$201K	0.0%	-59.4%	0.009%
5/15/2026	Kryger Capital LLC	3,896,485	$83.54M	5.9%	N/A	3.771%
5/15/2026	Entropy Technologies LP	17,040	$365K	0.0%	-42.0%	0.016%
5/14/2026	Healthcare of Ontario Pension Plan Trust Fund	643,738	$13.80M	0.0%	N/A	0.623%
5/14/2026	Renaissance Technologies LLC	1,296,984	$27.81M	0.0%	-0.6%	1.255%
5/14/2026	Gabelli Funds LLC	464,097	$9.95M	0.1%	N/A	0.449%
5/14/2026	GABELLI & Co INVESTMENT ADVISERS INC.	325,350	$6.98M	1.0%	N/A	0.315%
5/14/2026	Arrowstreet Capital Limited Partnership	15,294	$328K	0.0%	-94.0%	0.015%
5/14/2026	Sei Investments Co.	104,598	$2.24M	0.0%	+178.8%	0.101%
5/7/2026	Dimensional Fund Advisors LP	819,371	$17.57M	0.0%	-21.0%	0.793%
5/5/2026	Bank of New York Mellon Corp	231,043	$4.95M	0.0%	+9.2%	0.224%
5/4/2026	ABC Arbitrage SA	228,817	$4.91M	0.7%	N/A	0.221%
5/1/2026	Commonwealth of Pennsylvania Public School Empls Retrmt SYS	26,500	$568K	0.0%	N/A	0.026%
4/29/2026	Credit Industriel ET Commercial	135,420	$2.90M	0.2%	N/A	0.131%
4/27/2026	Chicago Capital Management LLC	10,000	$214K	0.0%	N/A	0.010%
4/25/2026	Strs Ohio	37,900	$813K	0.0%	+34.9%	0.037%
4/23/2026	Inspire Investing LLC	18,911	$405K	0.0%	N/A	0.018%
4/22/2026	Pictet Asset Management Holding SA	13,034	$279K	0.0%	-99.6%	0.013%
4/22/2026	Sterling Capital Management LLC	2,493	$53K	0.0%	-43.9%	0.002%
4/16/2026	SG Americas Securities LLC	122,922	$2.64M	0.0%	-64.9%	0.119%
3/20/2026	Hsbc Holdings PLC	49,333	$455K	0.0%	-55.1%	0.048%
2/19/2026	Invesco Ltd.	123,994	$1.16M	0.0%	+26.5%	0.121%
2/18/2026	Oracle Investment Management Inc.	100,000	$932K	0.6%	N/A	0.097%
2/18/2026	XTX Topco Ltd	128,440	$1.20M	0.0%	+62.9%	0.125%
2/18/2026	VARCOV Co.	28,016	$261K	0.1%	N/A	0.027%
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2/18/2026	Vestal Point Capital LP	5,200,000	$48.46M	1.6%	+94.4%	5.064%
2/18/2026	Virtus Investment Advisers LLC	81,747	$762K	0.2%	+23.1%	0.080%
2/18/2026	Susquehanna Portfolio Strategies LLC	57,379	$535K	0.0%	-38.0%	0.056%
2/18/2026	Sphera Funds Management LTD.	145,371	$1.36M	0.3%	-17.1%	0.142%
2/18/2026	Millennium Management LLC	1,349,919	$12.58M	0.0%	+94.7%	1.315%
2/18/2026	Man Group plc	197,096	$1.84M	0.0%	+114.7%	0.192%
2/18/2026	Balyasny Asset Management L.P.	1,489,924	$13.89M	0.0%	+7.6%	1.451%
2/18/2026	ACT Capital Management LLC	12,900	$120K	0.1%	N/A	0.013%
2/17/2026	Logos Global Management LP	300,000	$2.80M	0.2%	N/A	0.292%
2/17/2026	Schonfeld Strategic Advisors LLC	300,102	$2.80M	0.0%	+1,186.9%	0.292%
2/17/2026	PDT Partners LLC	24,300	$226K	0.0%	N/A	0.024%
2/17/2026	AQR Capital Management LLC	431,758	$4.02M	0.0%	+298.0%	0.420%
2/17/2026	Cetera Investment Advisers	35,000	$326K	0.0%	-11.5%	0.034%
2/17/2026	Lazard Asset Management LLC	23,065	$215K	0.0%	+60.6%	0.022%
2/17/2026	Mak Capital One LLC	826,205	$7.70M	0.8%	-43.0%	0.805%
2/17/2026	Jump Financial LLC	667,120	$6.22M	0.1%	+144.8%	0.650%
2/17/2026	Price T Rowe Associates Inc. MD	102,456	$955K	0.0%	+28.5%	0.100%
2/17/2026	Osaic Holdings Inc.	39,490	$368K	0.0%	+5.9%	0.038%
2/17/2026	Public Employees Retirement System of Ohio	34,267	$319K	0.0%	N/A	0.033%
2/17/2026	Russell Investments Group Ltd.	143,079	$1.33M	0.0%	-4.8%	0.139%
2/17/2026	State of Wisconsin Investment Board	23,426	$218K	0.0%	-13.2%	0.023%
2/17/2026	ExodusPoint Capital Management LP	39,321	$366K	0.0%	-35.5%	0.038%
2/17/2026	Royal Bank of Canada	4,108	$38K	0.0%	-90.7%	0.004%
2/17/2026	Graham Capital Management L.P.	50,355	$469K	0.0%	N/A	0.049%
2/16/2026	Squarepoint Ops LLC	100,612	$938K	0.0%	N/A	0.098%
2/16/2026	Mariner LLC	31,167	$290K	0.0%	N/A	0.030%
2/16/2026	Kennedy Capital Management LLC	542,848	$5.06M	0.1%	+0.5%	0.529%
2/16/2026	Landscape Capital Management L.L.C.	33,898	$316K	0.0%	N/A	0.033%
2/16/2026	Entropy Technologies LP	29,379	$274K	0.0%	N/A	0.029%
2/13/2026	The Manufacturers Life Insurance Company	24,243	$226K	0.0%	-4.8%	0.024%
2/13/2026	Hudson Bay Capital Management LP	1,700,000	$15.84M	0.1%	+28.8%	1.656%
2/13/2026	Virtus Advisers LLC	11,200	$104K	0.0%	N/A	0.011%
2/13/2026	Schroder Investment Management Group	569,624	$5.23M	0.0%	+110.8%	0.555%
2/13/2026	Jacobs Levy Equity Management Inc.	729,281	$6.80M	0.0%	N/A	0.710%
2/13/2026	Rafferty Asset Management LLC	157,010	$1.46M	0.0%	+23.1%	0.153%
2/13/2026	Charles Schwab Investment Management Inc.	633,694	$5.91M	0.0%	+3.9%	0.617%
2/13/2026	State Street Corp	4,289,566	$39.98M	0.0%	+32.4%	4.178%
2/13/2026	UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	124,422	$1.16M	0.0%	+7.0%	0.121%
2/13/2026	Wells Fargo & Company MN	114,716	$1.07M	0.0%	+40.8%	0.112%
2/13/2026	Atlas Venture Life Science Advisors LLC	6,412,560	$59.77M	6.9%	-0.3%	6.245%
2/12/2026	HRT Financial LP	450,938	$4.20M	0.0%	+40.3%	0.439%
2/12/2026	DRW Securities LLC	11,635	$108K	0.0%	-65.0%	0.011%
2/12/2026	MetLife Investment Management LLC	43,664	$407K	0.0%	+16.5%	0.043%
2/12/2026	Renaissance Technologies LLC	1,305,084	$12.16M	0.0%	+44.1%	1.271%
2/12/2026	Dimensional Fund Advisors LP	1,037,312	$9.67M	0.0%	-15.2%	1.010%
2/12/2026	Federated Hermes Inc.	2,730	$25K	0.0%	-51.1%	0.003%
2/12/2026	AlphaCentric Advisors LLC	26,812	$250K	0.2%	N/A	0.026%
2/12/2026	Knott David M Jr	25,884	$241K	0.1%	-80.2%	0.025%
2/12/2026	Alps Advisors Inc.	84,304	$786K	0.0%	+71.9%	0.082%
2/12/2026	Swiss National Bank	141,500	$1.32M	0.0%	+12.5%	0.138%
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2/12/2026	Nuveen LLC	522,455	$4.87M	0.0%	+247.4%	0.509%
2/11/2026	Deutsche Bank AG	57,010	$531K	0.0%	+37.4%	0.056%
2/11/2026	Fox Run Management L.L.C.	33,639	$314K	0.0%	+29.7%	0.033%
2/11/2026	Cerity Partners LLC	11,586	$108K	0.0%	N/A	0.011%
2/11/2026	LPL Financial LLC	10,900	$102K	0.0%	N/A	0.011%
2/11/2026	Franklin Resources Inc.	52,726	$491K	0.0%	-98.5%	0.051%
2/11/2026	Los Angeles Capital Management LLC	100,314	$935K	0.0%	+1.4%	0.098%
2/10/2026	Goldman Sachs Group Inc.	1,506,234	$14.04M	0.0%	+9.8%	1.467%
2/10/2026	AXQ Capital LP	32,405	$302K	0.1%	+98.7%	0.032%
2/10/2026	BNP Paribas Financial Markets	453,311	$4.23M	0.0%	+69.0%	0.441%

DAWN Institutional Ownership - Frequently Asked Questions

During the previous two years, 213 institutional investors and hedge funds held shares of Day One Biopharmaceuticals. The most heavily invested institutionals were FMR LLC ($163.28M), Kryger Capital LLC ($83.54M), RA Capital Management L.P. ($72.92M), Atlas Venture Life Science Advisors LLC ($59.77M), Vanguard Group Inc. ($58.55M), Vestal Point Capital LP ($48.46M), and Bank of America Corp DE ($40.80M).Learn more on Day One Biopharmaceuticals' institutional investors.

87.95% of Day One Biopharmaceuticals' stock is owned by institutional investors. Learn more on DAWN's institutional investor holdings.

Of the 186 institutional investors that purchased Day One Biopharmaceuticals' stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: FMR LLC ($10.23M), Vestal Point Capital LP ($5.34M), Alyeska Investment Group L.P. ($4.06M), Kryger Capital LLC ($3.90M), Rubric Capital Management LP ($3.38M), AIGH Capital Management LLC ($1.99M), and Millennium Management LLC ($1.87M).

Institutional investors have bought a total of 35,126,716 shares in the last 24 months. This purchase volume represents approximately $443.33M in transactions.

Of the 49 institutional investors that sold Day One Biopharmaceuticals' stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Franklin Resources Inc. ($4.04M), Pictet Asset Management Holding SA ($2.98M), Alyeska Investment Group L.P. ($800K), Mak Capital One LLC ($622.26K), Dimensional Fund Advisors LP ($597.18K), Millennium Management LLC ($514.48K), and Vestal Point Capital LP ($325K).

Institutional investors have sold a total of 11,536,679 shares in the last 24 months. This volume of shares sold represents approximately $145.11M in transactions.

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Institutional ownership data for NASDAQ:DAWN is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 6/18/2026. New 13F filings are added each quarter as they're published.

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Day One Biopharmaceuticals (DAWN) Institutional Ownership

DAWN Institutional Buying and Selling by Quarter

Day One Biopharmaceuticals Major Shareholders & Ownership History

DAWN Institutional Ownership - Frequently Asked Questions

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Day One Biopharmaceuticals (DAWN) Institutional Ownership

Institutional Ownership Changes (13F Filings) for Day One Biopharmaceuticals (NASDAQ:DAWN)

DAWN Institutional Buying and Selling by Quarter

Day One Biopharmaceuticals Major Shareholders & Ownership History

DAWN Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of DAWN shares?

What percentage of Day One Biopharmaceuticals' stock is owned by institutional investors?

Which institutional investors have been buying Day One Biopharmaceuticals' stock?

How much institutional buying is happening at Day One Biopharmaceuticals?

Which of Day One Biopharmaceuticals' major shareholders have been selling company stock?

How much institutional selling is happening at Day One Biopharmaceuticals?

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