Day One Biopharmaceuticals, Inc.

DAWNDelisted Apr 23, 2026

Industry: Pharmaceutical Preparations
SEC CIK: 0001845337

SEC filings (opens in a new tab)

Day One Biopharmaceuticals, Inc. was delisted on Apr 23, 2026; its insiders filed their last Form 4 on Apr 27, 2026; 208 institutions reported holding it in 13F filings for Q1 2026, worth $1.85B in total; Soros Fund Management was the only superinvestor holding it.

Q3 2022 vs. Q2 2022

How the institutions holding Day One Biopharmaceuticals, Inc. changed between Q2 2022 and Q3 2022.

All holders in Q3 2022 All holders in Q2 2022

13F holders of DAWN: Q2 2022 compared with Q3 2022
Measure	Q2 2022	Of which not filed for Q3 2022	Q3 2022	Change
Holders	87	1	93	+7
Shares	59.4M	2.30K	60.8M	+1.39M (+2.3%)
Value	$1.06B	$27.5K	$1.21B	+$149.0M (+14.0%)

1 institution that held it in Q2 2022 haven't filed for Q3 2022 yet. Not filing isn't selling, so the changes leave them out.

New holders (24)

Institutions that held Day One Biopharmaceuticals, Inc. at the end of Q3 2022 but not at the end of Q2 2022.

Institutions new to DAWN in Q3 2022
Institution	Shares	Value	% of portfolio
Nicholas Investment Partners, LP	757,407	$15.2M	1.41%
Lord, Abbett & Co. LLC	504,251	$10.1M	0.04%
Pathway Capital Management, LP	403,127	$8.07M	25.88%
Tang Capital Management LLC	400,000	$8.01M	0.98%
Voloridge Investment Management, LLC	207,265	$4.15M	0.02%
Rafferty Asset Management, LLC	144,634	$2.90M	0.03%
Great Point Partners LLC	70,621	$1.42M	0.34%
Group One Trading, L.P.	59,123	$1.18M	0.04%
Healthcare of Ontario Pension Plan Trust Fund	54,000	$1.08M	0.01%
Dimensional Fund Advisors LP	51,408	$1.03M	0.00%
Susquehanna International Group, LLP	49,368	$989.0K	0.00%
Fisher Asset Management, LLC	45,526	$912.0K	0.00%
Prudential Financial Inc	38,315	$767.0K	0.00%
UBS Oconnor LLC	37,000	$741.0K	0.01%
Tudor Investment Corp Et Al	36,544	$732.0K	0.02%
Voya Investment Management LLC	27,898	$558.8K	0.00%
Parkwood LLC	18,475	$370.0K	0.08%
Bayesian Capital Management, LP	13,508	$271.0K	0.05%
Mirae Asset Global Investments Co., Ltd.	11,943	$240.0K	0.00%
China Universal Asset Management Co., Ltd.	688	$14.0K	0.01%
Bellevue Asset Management, LLC	62	$1.00K	0.00%
Spire Wealth Management	40	$1.00K	0.00%
Umb Bank N A	3	$0	0.00%
Covestor Ltd	6	$0	0.00%

Sold out (17)

Institutions that held Day One Biopharmaceuticals, Inc. at the end of Q2 2022 and filed for Q3 2022 without it.

Institutions that sold out of DAWN in Q3 2022
Institution	Shares, Q2 2022	Value, Q2 2022
Perceptive Advisors LLC	556,047	$9.95M
Woodline Partners LP	150,176	$2.69M
Marshall Wace, LLP	145,898	$2.61M
Simplex Trading, LLC	132,926	$2.38M
Silverarc Capital Management, LLC	105,476	$1.89M
Invesco Ltd.	97,024	$1.74M
Maven Securities LTD	80,000	$1.43M
Ergoteles LLC	56,300	$1.01M
Allianz Asset Management GmbH	51,325	$919.0K
HRT Financial LP	35,426	$634.0K
Utah Retirement Systems	34,184	$612.0K
Monashee Investment Management LLC	30,000	$537.0K
Occudo Quantitative Strategies LP	23,619	$423.0K
Millennium Management LLC	17,555	$314.0K
Quantbot Technologies LP	2,900	$51.0K
ACG Wealth	1,772	$32.0K
Advisor Group Holdings, Inc.	1	$0

Not filed for Q3 2022 yet (1)

Institutions that held Day One Biopharmaceuticals, Inc. at the end of Q2 2022 and haven't filed a 13F for Q3 2022. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding DAWN in Q2 2022 that haven't filed for Q3 2022
Institution	Shares, Q2 2022	Value, Q2 2022
Quintet Private Bank (Europe) S.A.	2,302	$27.5K