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
2024 Q4	–	Sell	-20,300	Closed	-$283K	–	9584
2024 Q3	$283K	Buy	20,300 +300	+2%	+$4.28K	﹤0.01%	8123
2024 Q2	$276K	Buy	+20,000	New	+$293K	﹤0.01%	7931
2023 Q4	–	Sell	-14,800	Closed	-$182K	–	9264
2023 Q3	$182K	Sell	14,800 -25,400	-63%	-$331K	﹤0.01%	7690
2023 Q2	$480K	Buy	+40,200	New	+$525K	﹤0.01%	6383
2022 Q3	–	Sell	-49,600	Closed	-$888K	–	9815
2022 Q2	$888K	Buy	+49,600	New	+$512K	﹤0.01%	5712

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.