Magnetar Financial’s Day One Biopharmaceuticals DAWN Stock Holding History

Magnetar Financial’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 Q2	–	Sell	-645,173	Closed	-$13.8M	–	1237
2026 Q1	$13.8M	Buy	+645,173	New	+$9.09M	0.14%	95
2025 Q4	–	Sell	-16,487	Closed	-$116K	–	993
2025 Q3	$116K	Buy	+16,487	New	+$113K	﹤0.01%	813
2025 Q2	–	Sell	-11,303	Closed	-$89.6K	–	946
2025 Q1	$89.6K	Buy	+11,303	New	+$122K	﹤0.01%	704

Other funds holding DAWN

IFP Advisors Tampa, Florida $5.86B AUM 20.09% 1-Year Est. Return

Magnetar Financial's DAWN Position: Q2 2026 in Review

Magnetar Financial sold out of Day One Biopharmaceuticals (DAWN) in Q2 2026, closing a stake of 645,173 shares — an estimated $13.8M sold.

Magnetar Financial first reported a position in DAWN in Q1 2025 and held it in 3 quarters. The position peaked at $13.8M in Q1 2026. 1 fund tracked by Wall St. Rank holds DAWN as of Q2 2026.

Magnetar Financial reported no remaining Day One Biopharmaceuticals position as of Q2 2026 after selling out during the quarter.
Magnetar Financial sold 645,173 Day One Biopharmaceuticals shares in Q2 2026, an estimated $13.8M.
Magnetar Financial first reported a position in Day One Biopharmaceuticals in Q1 2025 and held it in 3 quarters.
Magnetar Financial's Day One Biopharmaceuticals position peaked at $13.8M in Q1 2026.
1 fund tracked by Wall St. Rank held Day One Biopharmaceuticals as of Q2 2026.

Based on Magnetar Financial's 13F filing for Q2 2026, filed 14 Aug 2026.