DAWN Insider Trading

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Insider Trading History
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About

Insider Ownership Percentage: 6.20%

Insider Buying (Last 12 Months): $0.00

Insider Selling (Last 12 Months): $1,259,570.00

Day One Biopharmaceuticals Insider Trading History Chart

Day One Biopharmaceuticals Share Price & Price History

^$8.34

▲ +0.03 (0.36%)

As of 12/4/2025 05:00 PM ET

Days: 30 | 90 | 365

Day One Biopharmaceuticals Insider Trading History

Transaction Date	Insider Name	Title	Buy/Sell	Number of Shares	Average Share Price	Total Transaction	Shares Held After Transaction
11/17/2025	Adam Dubow	Insider	Sell	4,319	$8.91	$38,482.29	62,626
11/17/2025	Charles N. York, II	CFO	Sell	4,062	$8.91	$36,192.42	294,715
11/17/2025	Jeremy Bender	CEO	Sell	15,894	$8.91	$141,615.54	177,165
11/17/2025	Lauren Merendino	Insider	Sell	3,726	$8.91	$33,198.66	50,809
8/18/2025	Adam Dubow	Insider	Sell	4,365	$6.77	$29,551.05	54,858
8/18/2025	Charles N. York, II	CFO	Sell	4,106	$6.77	$27,797.62	278,000
8/18/2025	Jeremy Bender	CEO	Sell	16,058	$6.77	$108,712.66	161,365
8/18/2025	Lauren Merendino	Insider	Sell	3,766	$6.77	$25,495.82	41,931
5/16/2025	Adam Dubow	General Counsel	Sell	4,552	$6.26	$28,495.52	47,136
5/16/2025	Charles N. York, II	CFO	Sell	4,282	$6.26	$26,805.32	265,231
5/16/2025	Jeremy Bender	CEO	Sell	13,964	$6.26	$87,414.64	145,737
5/16/2025	Lauren Merendino	Insider	Sell	3,927	$6.26	$24,583.02	35,161
2/18/2025	Adam Dubow	General Counsel	Sell	4,646	$11.96	$55,566.16	39,602
2/18/2025	Charles N. York, II	CFO	Sell	4,370	$11.96	$52,265.20	252,638
2/18/2025	Jeremy Bender	CEO	Sell	12,048	$11.96	$144,094.08	128,015
12/10/2024	Samuel C. Blackman	Insider	Sell	30,000	$13.31	$399,300.00	1,034,015
11/11/2024	Samuel C. Blackman	Insider	Sell	10,000	$16.10	$161,000.00	1,057,535
11/7/2024	Samuel C. Blackman	Insider	Sell	11,245	$16.03	$180,257.35	1,085,790
10/31/2024	Samuel C. Blackman	Insider	Sell	500	$16.02	$8,010.00	1,097,035
9/10/2024	Samuel C. Blackman	Insider	Sell	30,000	$14.22	$426,600.00	1,097,535
8/16/2024	Adam Dubow	General Counsel	Sell	3,202	$14.00	$44,828.00	26,928
8/16/2024	Charles N. York, II	CFO	Sell	2,633	$14.00	$36,862.00	232,485
8/16/2024	Jeremy Bender	CEO	Sell	10,681	$14.00	$149,534.00	98,932
8/16/2024	Samuel C. Blackman	Insider	Sell	2,232	$14.00	$31,248.00	1,127,535
7/16/2024	Samuel C. Blackman	Insider	Sell	20,000	$16.01	$320,200.00	1,121,081
6/21/2024	Saira Ramasastry	Director	Sell	10,000	$13.19	$131,900.00	40,485
5/16/2024	Adam Dubow	General Counsel	Sell	3,253	$16.08	$52,308.24	21,731
5/16/2024	Charles N. York, II	CFO	Sell	2,675	$16.08	$43,014.00	224,868
5/16/2024	Jeremy Bender	CEO	Sell	7,873	$16.08	$126,597.84	654,728
5/16/2024	Samuel C. Blackman	Insider	Sell	2,267	$16.08	$36,453.36	1,171,081
5/10/2024	Samuel C. Blackman	Insider	Sell	10,000	$16.37	$163,700.00	1,164,662
5/3/2024	Charles N. York, II	CFO	Sell	8,078	$17.85	$144,192.30	217,293
5/3/2024	Jeremy Bender	CEO	Sell	9,154	$17.85	$163,398.90	642,602
5/1/2024	Charles N. York, II	CFO	Sell	52,183	$17.89	$933,553.87	225,571
5/1/2024	Jeremy Bender	CEO	Sell	70,051	$17.88	$1,252,511.88	651,762
4/18/2024	Samuel C. Blackman	Insider	Sell	10,000	$16.02	$160,200.00	1,174,662
3/25/2024	Samuel C. Blackman	Insider	Sell	10,000	$16.01	$160,100.00	1,184,662
2/27/2024	Samuel C. Blackman	Insider	Sell	20,000	$16.11	$322,200.00	1,224,662
2/16/2024	Adam Dubow	General Counsel	Sell	3,242	$15.25	$49,440.50	16,585
2/16/2024	Charles N. York, II	CFO	Sell	2,666	$15.25	$40,656.50	277,754
2/16/2024	Jeremy Bender	CEO	Sell	7,615	$15.25	$116,128.75	721,813
2/16/2024	Samuel C. Blackman	Insider	Sell	2,258	$15.25	$34,434.50	1,244,662
11/16/2023	Adam Dubow	General Counsel	Sell	5,313	$11.69	$62,108.97	11,428
11/16/2023	Charles N. York, II	CFO	Sell	956	$11.69	$11,175.64	270,170
11/16/2023	Jeremy Bender	CEO	Sell	3,107	$11.69	$36,320.83	709,429
11/16/2023	Samuel C. Blackman	Insider	Sell	709	$11.69	$8,288.21	1,238,234
10/19/2023	Ai Day1 Llc	Major Shareholder	Buy	384,400	$10.06	$3,867,064.00	12,817,935
8/17/2023	Charles N. York, II	CFO	Sell	922	$13.86	$12,778.92	267,501
8/17/2023	Jeremy Bender	CEO	Sell	2,996	$13.86	$41,524.56	704,224
8/17/2023	Samuel C. Blackman	Insider	Sell	668	$13.86	$9,258.48	1,236,319
6/9/2023	Ai Day1 Llc	Major Shareholder	Buy	769,230	$13.00	$9,999,990.00	11,453,868
6/5/2023	Samuel C. Blackman	Insider	Sell	1,229	$16.00	$19,664.00	1,234,363
5/16/2023	Charles N. York, II	CFO	Sell	955	$13.12	$12,529.60	264,798
5/16/2023	Jeremy Bender	CEO	Sell	3,104	$13.12	$40,724.48	1,179,484
5/16/2023	Samuel C. Blackman	Insider	Sell	692	$13.12	$9,079.04	1,235,592
3/10/2023	Samuel C. Blackman	Insider	Sell	10,000	$18.05	$180,500.00	1,233,660
3/7/2023	Jeremy Bender	CEO	Sell	12,500	$20.01	$250,125.00	1,174,276
2/16/2023	Charles N. York, II	CFO	Sell	930	$19.57	$18,200.10	271,505
2/16/2023	Jeremy Bender	CEO	Sell	3,022	$19.57	$59,140.54	1,186,776
2/16/2023	Samuel C. Blackman	Insider	Sell	674	$19.57	$13,190.18	1,243,660
2/10/2023	Samuel C. Blackman	Insider	Sell	10,000	$20.07	$200,700.00	1,241,710
1/23/2023	Jeremy Bender	CEO	Sell	12,500	$22.00	$275,000.00	1,181,486
1/20/2023	Charles N. York, II	CFO	Sell	10,000	$22.75	$227,500.00	268,810
1/10/2023	Samuel C. Blackman	Insider	Sell	10,000	$22.86	$228,600.00	1,250,148
1/3/2023	Julie Papanek Grant	Director	Sell	25,000	$20.65	$516,250.00	380,000
12/21/2022	Jeremy Bender	CEO	Sell	12,500	$20.32	$254,000.00	1,192,424
12/20/2022	Charles N. York, II	CFO	Sell	10,000	$20.07	$200,700.00	276,497
12/8/2022	Julie Papanek Grant	Director	Sell	4,358	$22.08	$96,224.64	405,000
12/1/2022	Julie Papanek Grant	Director	Sell	5,000	$21.75	$108,750.00	414,358
12/1/2022	Samuel C. Blackman	Insider	Sell	10,000	$21.45	$214,500.00	1,260,148

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

87.95% of Day One Biopharmaceuticals stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

Day One Biopharmaceuticals Institutional Trading History

Reporting Date	Hedge Fund	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
11/17/2025	PharVision Advisers LLC	42,345	$0.30M	0.2%	N/A	0.041%
11/17/2025	XTX Topco Ltd	78,848	$0.56M	0.0%	+224.9%	0.077%
11/17/2025	Alyeska Investment Group L.P.	2,212,187	$15.60M	0.0%	-26.6%	2.155%
11/17/2025	Vestal Point Capital LP	2,675,000	$18.86M	0.9%	-10.8%	2.605%
11/17/2025	Susquehanna Fundamental Investments LLC	138,420	$0.98M	0.0%	-47.4%	0.135%
11/17/2025	Sherbrooke Park Advisers LLC	11,457	$81K	0.0%	-54.2%	0.011%
11/17/2025	Polymer Capital Management US LLC	19,036	$0.13M	0.0%	N/A	0.019%
11/17/2025	Quarry LP	7,009	$49K	0.0%	N/A	0.007%
11/17/2025	Qube Research & Technologies Ltd	1,167,669	$8.23M	0.0%	+23.7%	1.137%
11/17/2025	Prelude Capital Management LLC	10,641	$75K	0.0%	-45.5%	0.010%
11/17/2025	Parkman Healthcare Partners LLC	301,746	$2.13M	0.2%	-39.7%	0.294%
11/17/2025	Mak Capital One LLC	1,448,461	$10.21M	1.6%	N/A	1.411%
11/17/2025	Millennium Management LLC	693,320	$4.89M	0.0%	-42.6%	0.675%
11/17/2025	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	40,278	$0.28M	0.0%	-9.0%	0.039%
11/17/2025	Integrated Wealth Concepts LLC	17,430	$0.12M	0.0%	-13.6%	0.017%
11/17/2025	Citadel Advisors LLC	663,213	$4.68M	0.0%	-5.2%	0.646%
11/17/2025	Brevan Howard Capital Management LP	24,208	$0.17M	0.0%	N/A	0.024%
11/17/2025	Bank of America Corp DE	1,191,851	$8.40M	0.0%	+23.5%	1.161%
11/17/2025	Algert Global LLC	1,317,042	$9.29M	0.2%	+45.4%	1.283%
11/14/2025	Schonfeld Strategic Advisors LLC	23,320	$0.16M	0.0%	-76.6%	0.023%
11/14/2025	Creative Planning	26,196	$0.19M	0.0%	+41.5%	0.026%
11/14/2025	Rubric Capital Management LP	3,377,071	$23.81M	0.3%	N/A	3.289%
11/14/2025	Deerfield Management Company L.P.	4,705,413	$33.17M	0.5%	+26.4%	4.583%
11/14/2025	Man Group plc	91,818	$0.65M	0.0%	+61.5%	0.089%
11/14/2025	California State Teachers Retirement System	71,894	$0.51M	0.0%	+28.1%	0.070%
11/14/2025	Zurcher Kantonalbank Zurich Cantonalbank	24,095	$0.17M	0.0%	-26.8%	0.023%
11/14/2025	Balyasny Asset Management L.P.	1,384,047	$9.76M	0.0%	N/A	1.348%
11/14/2025	UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC	116,245	$0.82M	0.0%	-33.7%	0.113%
11/13/2025	Kennedy Capital Management LLC	540,384	$3.81M	0.1%	+19.2%	0.526%
11/13/2025	UBS Group AG	209,717	$1.48M	0.0%	+134.4%	0.204%
11/13/2025	BNP Paribas Financial Markets	268,288	$1.89M	0.0%	+113.8%	0.261%
11/13/2025	Franklin Resources Inc.	3,477,026	$24.51M	0.0%	-15.1%	3.386%
11/13/2025	Magnetar Financial LLC	16,487	$0.12M	0.0%	N/A	0.016%
11/13/2025	Russell Investments Group Ltd.	150,349	$1.06M	0.0%	+4.8%	0.146%
11/13/2025	Schroder Investment Management Group	270,217	$1.89M	0.0%	+50.0%	0.263%
11/13/2025	Dynamic Technology Lab Private Ltd	87,541	$0.62M	0.1%	+5.2%	0.085%
11/13/2025	Knott David M Jr	130,500	$0.92M	0.4%	+287.1%	0.127%
11/12/2025	Dimensional Fund Advisors LP	1,223,284	$8.62M	0.0%	-13.6%	1.191%
11/12/2025	Fisher Asset Management LLC	220,163	$1.55M	0.0%	-0.8%	0.214%
11/12/2025	Rafferty Asset Management LLC	127,580	$0.90M	0.0%	+29.3%	0.124%
11/12/2025	Intech Investment Management LLC	31,268	$0.22M	0.0%	-31.1%	0.030%
11/12/2025	Fox Run Management L.L.C.	25,932	$0.18M	0.0%	N/A	0.025%
11/10/2025	AXQ Capital LP	16,306	$0.12M	0.0%	N/A	0.016%
11/10/2025	Ameritas Investment Partners Inc.	6,013	$42K	0.0%	-18.2%	0.006%
11/10/2025	China Universal Asset Management Co. Ltd.	17,955	$0.13M	0.0%	-11.8%	0.017%
11/7/2025	NEOS Investment Management LLC	19,542	$0.14M	0.0%	-84.3%	0.019%
11/7/2025	Vanguard Group Inc.	6,181,329	$43.58M	0.0%	+0.1%	6.020%
11/7/2025	JPMorgan Chase & Co.	65,682	$0.46M	0.0%	-26.3%	0.064%
11/6/2025	Rhumbline Advisers	121,945	$0.86M	0.0%	+5.1%	0.119%
11/6/2025	Profund Advisors LLC	27,635	$0.20M	0.0%	+31.9%	0.027%
11/6/2025	ProShare Advisors LLC	15,956	$0.11M	0.0%	-14.0%	0.016%
11/5/2025	Alps Advisors Inc.	49,035	$0.35M	0.0%	-10.4%	0.048%
11/3/2025	AlphaQuest LLC	185,006	$1.30M	0.1%	+1,065.6%	0.181%
11/3/2025	Federated Hermes Inc.	5,586	$39K	0.0%	N/A	0.005%
10/31/2025	Perkins Capital Management Inc.	82,250	$0.58M	0.5%	N/A	0.080%
10/31/2025	AIGH Capital Management LLC	1,520,492	$10.72M	3.0%	N/A	1.484%
10/23/2025	SG Americas Securities LLC	26,345	$0.19M	0.0%	N/A	0.026%
10/22/2025	Hennion & Walsh Asset Management Inc.	95,072	$0.67M	0.0%	-1.8%	0.093%
10/15/2025	CWM LLC	6,322	$45K	0.0%	-65.2%	0.006%
10/9/2025	Voya Investment Management LLC	13,242	$93K	0.0%	-32.5%	0.013%
9/4/2025	Osaic Holdings Inc.	32,881	$0.21M	0.0%	-49.7%	0.032%
8/18/2025	Hudson Bay Capital Management LP	1,296,700	$8.43M	0.0%	+12.7%	1.266%
8/15/2025	Vestal Point Capital LP	3,000,000	$19.50M	1.0%	+15.5%	2.929%
8/15/2025	Rafferty Asset Management LLC	98,691	$0.64M	0.0%	-17.2%	0.096%
8/15/2025	Man Group plc	56,862	$0.37M	0.0%	+46.1%	0.056%
8/15/2025	Lazard Asset Management LLC	13,765	$89K	0.0%	N/A	0.013%
8/15/2025	Hudson Bay Capital Management LP	1,296,700	$8.43M	0.0%	+12.7%	1.266%
8/15/2025	BNP Paribas Financial Markets	125,462	$0.82M	0.0%	-22.6%	0.122%
8/15/2025	Braidwell LP	2,181,598	$14.18M	0.5%	-38.3%	2.130%
8/15/2025	Bank of America Corp DE	965,423	$6.28M	0.0%	-7.8%	0.943%
8/14/2025	Bayesian Capital Management LP	28,100	$0.18M	0.0%	+56.1%	0.027%
8/14/2025	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	44,244	$0.29M	0.0%	+16.5%	0.043%
8/14/2025	The Manufacturers Life Insurance Company	38,204	$0.25M	0.0%	+28.6%	0.037%
8/14/2025	OCONNOR A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS LLC	107,249	$0.70M	0.0%	-5.3%	0.105%
8/14/2025	Nebula Research & Development LLC	60,665	$0.39M	0.0%	+6.2%	0.059%
8/14/2025	Qube Research & Technologies Ltd	944,202	$6.14M	0.0%	+236.3%	0.922%
8/14/2025	Pale Fire Capital SE	34,843	$0.23M	0.0%	+9.9%	0.034%
8/13/2025	Diametric Capital LP	49,941	$0.33M	0.2%	+104.0%	0.049%
8/13/2025	Tema Etfs LLC	124,310	$0.81M	0.2%	+36.4%	0.121%
8/13/2025	Stonepine Capital Management LLC	450,000	$2.93M	2.9%	+29.0%	0.439%
8/13/2025	Kennedy Capital Management LLC	453,520	$2.95M	0.1%	+38.4%	0.443%
8/13/2025	Invesco Ltd.	68,507	$0.45M	0.0%	+47.6%	0.067%
8/13/2025	Quantbot Technologies LP	7,542	$49K	0.0%	-26.7%	0.007%
8/13/2025	Fisher Asset Management LLC	221,983	$1.44M	0.0%	-19.3%	0.217%
8/13/2025	Schroder Investment Management Group	180,133	$1.17M	0.0%	N/A	0.176%
8/13/2025	Virtus Investment Advisers LLC	66,427	$0.43M	0.1%	+137.0%	0.065%
8/13/2025	Norges Bank	169,000	$1.10M	0.0%	N/A	0.165%
8/13/2025	Hsbc Holdings PLC	131,668	$0.85M	0.0%	+162.4%	0.129%
8/13/2025	Russell Investments Group Ltd.	143,453	$0.93M	0.0%	+777.9%	0.140%
8/12/2025	XTX Topco Ltd	24,268	$0.16M	0.0%	N/A	0.024%
8/12/2025	Ameritas Investment Partners Inc.	7,349	$48K	0.0%	+44.5%	0.007%
8/12/2025	Prudential Financial Inc.	10,682	$69K	0.0%	N/A	0.010%
8/12/2025	American Century Companies Inc.	27,330	$0.18M	0.0%	+89.6%	0.027%
8/12/2025	Rhumbline Advisers	116,060	$0.75M	0.0%	+41.8%	0.113%
8/12/2025	Legal & General Group Plc	56,864	$0.37M	0.0%	-6.1%	0.056%
8/12/2025	Franklin Resources Inc.	4,097,625	$26.64M	0.0%	+2.0%	4.000%
8/12/2025	JPMorgan Chase & Co.	89,102	$0.58M	0.0%	+44.8%	0.087%
8/12/2025	Entropy Technologies LP	10,330	$67K	0.0%	N/A	0.010%
8/12/2025	Swiss National Bank	125,800	$0.82M	0.0%	+17.0%	0.123%
8/12/2025	Dynamic Technology Lab Private Ltd	83,223	$0.54M	0.1%	+71.7%	0.081%

Data available starting January 2016

Day One Biopharmaceuticals, Inc., a clinical-stage biopharmaceutical company, develops and commercializes targeted therapies for patients with genomically defined cancers. Its lead product candidate is tovorafenib, an oral brain-penetrant type II pan-rapidly accelerated fibrosarcoma kinase inhibitor that is in Phase II clinical trial for pediatric patients with relapsed/ refractory low-grade glioma. The company is also developing Pimasertib, an oral small molecule inhibitor of mitogen-activated protein kinase kinases 1 and 2. Day One Biopharmaceuticals, Inc. was incorporated in 2018 and is headquartered in Brisbane, California.

Today's Range

Now: $8.34

$8.21

$8.60

50 Day Range

MA: $8.08

$6.77

$10.36

52 Week Range

Now: $8.34

$5.64

$13.92

Volume

2,072,215 shs

Average Volume

2,762,046 shs

Market Capitalization

$856.32 million

P/E Ratio

N/A

Dividend Yield

N/A

Beta

N/A

Who are the company insiders with the largest holdings of Day One Biopharmaceuticals?: Day One Biopharmaceuticals' top insider investors include:
Samuel C Blackman (Insider)
Jeremy Bender (CEO)
Charles N York II (CFO)
Adam Dubow (Insider)
Lauren Merendino (Insider)
Adam Dubow (General Counsel)
Saira Ramasastry (Director)
Learn More about top insider investors at Day One Biopharmaceuticals.
Who are the major institutional investors of Day One Biopharmaceuticals?: Day One Biopharmaceuticals' top institutional shareholders include:
Vanguard Group Inc. — 6.02%
Deerfield Management Company L.P. — 4.58%
Franklin Resources Inc. — 3.39%
Rubric Capital Management LP — 3.29%
Vestal Point Capital LP — 2.61%
Alyeska Investment Group L.P. — 2.15%
Learn More about top institutional investors of Day One Biopharmaceuticals stock.
Which major investors are selling Day One Biopharmaceuticals stock?: During the previous quarter, DAWN stock was sold by these institutional investors:
Alyeska Investment Group L.P.
Franklin Resources Inc.
Millennium Management LLC
Vestal Point Capital LP
Parkman Healthcare Partners LLC
Dimensional Fund Advisors LP
Susquehanna Fundamental Investments LLC
NEOS Investment Management LLC
During the previous year, company insiders that have sold Day One Biopharmaceuticals company stock include:
Samuel C Blackman (Insider)
Jeremy Bender (CEO)
Charles N York II (CFO)
Adam Dubow (Insider)
Lauren Merendino (Insider)
Adam Dubow (General Counsel)
Learn More investors selling Day One Biopharmaceuticals stock.
Which major investors are buying Day One Biopharmaceuticals stock?: Within the previous quarter, DAWN stock was acquired by institutional investors including:
Rubric Capital Management LP
AIGH Capital Management LLC
Mak Capital One LLC
Balyasny Asset Management L.P.
Deerfield Management Company L.P.
Algert Global LLC
Bank of America Corp DE
Qube Research & Technologies Ltd