Jane Street’s Day One Biopharmaceuticals DAWN Stock Holding History

Jane Street’s Portfolio DAWN Stock Details DAWN Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$10.2M	Sell	475,436 -369,718	-44%	-$5.21M	﹤0.01%	2515
2025 Q4	$7.88M	Buy	845,154 +565,810	+203%	+$4.73M	﹤0.01%	2620
2025 Q3	$1.97M	Buy	+279,344	New	+$1.92M	﹤0.01%	4969
2025 Q2	–	Sell	-30,910	Closed	-$245K	–	9817
2025 Q1	$245K	Buy	+30,910	New	+$333K	﹤0.01%	8138
2024 Q4	–	Sell	-69,757	Closed	-$972K	–	9583
2024 Q3	$972K	Sell	69,757 -110,027	-61%	-$1.57M	﹤0.01%	5950
2024 Q2	$2.48M	Buy	179,784 +123,010	+217%	+$1.8M	﹤0.01%	4141
2024 Q1	$938K	Buy	56,774 +17,471	+44%	+$261K	﹤0.01%	5538
2023 Q4	$574K	Buy	+39,303	New	+$476K	﹤0.01%	6532
2023 Q3	–	Sell	-36,611	Closed	-$478K	–	8753
2023 Q2	$437K	Sell	36,611 -61,984	-63%	-$810K	﹤0.01%	6520
2023 Q1	$1.32M	Buy	+98,595	New	+$1.93M	﹤0.01%	4516

Other funds holding DAWN

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

GCL

Glazer Capital LLC New York $4.71B AUM 81.93% 1-Year Est. Return

Fidelity International Hamilton, Bermuda $129B AUM 30.83% 1-Year Est. Return

Kryger Capital London, United Kingdom $1.41B AUM 86.31% 1-Year Est. Return

Deerfield Management New York $8.48B AUM 99.04% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Balyasny Asset Management Chicago, Illinois $77.1B AUM 42.89% 1-Year Est. Return

AQR Arbitrage Greenwich, Connecticut $6.09B AUM 27.01% 1-Year Est. Return

Jane Street's DAWN Position: Q1 2026 in Review

Jane Street reduced its Day One Biopharmaceuticals (DAWN) stake by 44% in Q1 2026, selling an estimated $5.21M and leaving 475,436 shares worth $10.2M. The position accounts for ﹤0.01% of the portfolio, ranked #2515.

Jane Street first reported a position in DAWN in Q1 2023 and has held it in 10 quarters since. 206 funds tracked by Wall St. Rank hold DAWN as of Q1 2026.

Jane Street held 475,436 shares of Day One Biopharmaceuticals worth $10.2M as of Q1 2026.
Jane Street sold 369,718 Day One Biopharmaceuticals shares in Q1 2026, an estimated $5.21M.
Day One Biopharmaceuticals made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #2515 holding.
Jane Street first reported a position in Day One Biopharmaceuticals in Q1 2023 and has held it in 10 quarters since.
206 funds tracked by Wall St. Rank held Day One Biopharmaceuticals as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.