Deerfield Management Company, L.P. (Series C) Day One Biopharmaceuticals, Inc. Transaction History

Deerfield Management Company, L.P. (Series C)

$5.37 Billion
Q3 2025

A detailed history of Deerfield Management Company, L.P. (Series C) transactions in Day One Biopharmaceuticals, Inc. stock. As of the latest transaction made, Deerfield Management Company, L.P. (Series C) holds 4,705,413 shares of DAWN stock, worth $41.4 Million. This represents 0.62% of its overall portfolio holdings.

Number of Shares

4,705,413

Previous 3,723,131 26.38%

Holding current value

$41.4 Million

Previous $24.2 Million 37.08%

% of portfolio

0.62%

Previous 0.56%

16 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Nov 14, 2025	BUY	$5.8 - $7.59 $5.7 Million - $7.46 Million	982,282 Added 26.38%	4,705,413 $33.2 Million
Q2 2025 Aug 14, 2025	BUY	$6.16 - $7.97 $4.7 Million - $6.08 Million	762,391 Added 25.75%	3,723,131 $24.2 Million
Q1 2025 May 15, 2025	BUY	$7.93 - $13.21 $2.89 Million - $4.82 Million	364,707 Added 14.05%	2,960,740 $23.5 Million
Q4 2024 Feb 14, 2025	SELL	$12.46 - $16.39 $270,132 - $355,335	-21,680 Reduced 0.83%	2,596,033 $32.9 Million
Q3 2024 Nov 14, 2024	SELL	$12.72 - $16.03 $3.88 Million - $4.9 Million	-305,424 Reduced 10.45%	2,617,713 $36.5 Million
Q2 2024 Aug 14, 2024	BUY	$12.03 - $17.69 $13.9 Million - $20.5 Million	1,157,825 Added 65.59%	2,923,137 $40.3 Million
Q1 2024 May 15, 2024	BUY	$13.56 - $17.46 $56,057 - $72,179	4,134 Added 0.23%	1,765,312 $29.2 Million
Q4 2023 Feb 14, 2024	BUY	$9.68 - $15.37 $4.75 Million - $7.55 Million	491,186 Added 38.68%	1,761,178 $25.7 Million
Q2 2023 Aug 14, 2023	BUY	$11.74 - $14.47 $14.9 Million - $18.4 Million	1,269,992 New	1,269,992 $15.2 Million
Q4 2022 Feb 14, 2023	SELL	$18.77 - $22.0 $1.28 Million - $1.5 Million	-67,967 Reduced 6.59%	964,033 $20.7 Million
Q3 2022 Nov 14, 2022	SELL	$16.44 - $26.57 $40.8 Million - $65.9 Million	-2,480,123 Reduced 70.62%	1,032,000 $20.7 Million
Q2 2022 Aug 15, 2022	BUY	$5.72 - $17.9 $8.15 Million - $25.5 Million	1,425,674 Added 68.33%	3,512,123 $62.9 Million
Q1 2022 May 16, 2022	SELL	$9.12 - $17.47 $1.06 Million - $2.03 Million	-116,084 Reduced 5.27%	2,086,449 $20.7 Million
Q4 2021 Feb 14, 2022	BUY	$15.65 - $26.33 $7.7 Million - $12.9 Million	491,803 Added 28.75%	2,202,533 $37.1 Million
Q3 2021 Nov 15, 2021	BUY	$20.0 - $27.92 $17.8 Million - $24.9 Million	891,750 Added 108.89%	1,710,730 $40.6 Million
Q2 2021 Aug 16, 2021	BUY	$19.0 - $23.69 $15.6 Million - $19.4 Million	818,980 New	818,980 $18.6 Million

Others Institutions Holding DAWN

# of Institutions

180

Shares Held

70.6M

Call Options Held

42.8K

Put Options Held

60.3K

View Full List

About Day One Biopharmaceuticals, Inc.

Ticker DAWN
Exchange NASDAQ
Sector Healthcare
Industry Biotechnology
Shares Outstandng 73,461,104
Market Cap $646M
Description
Day One Biopharmaceuticals, Inc., a clinical-stage biopharmaceutical company, develops and commercializes targeted therapies for patients with genetically defined cancers. Its lead product candidate is DAY101, an oral brain-penetrant type II pan-rapidly accelerated fibrosarcoma kinase inhibitor that is in Phase II clinical trial for pediatric pa...

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Deerfield Management Company, L.P. (Series C) Day One Biopharmaceuticals, Inc. Transaction History