Mariner’s Day One Biopharmaceuticals DAWN Stock Holding History

Mariner’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	-52,342	Closed	-$1.12M	–	3601
2026 Q1	$1.12M	Buy	52,342 +21,175	+68%	+$298K	﹤0.01%	1887
2025 Q4	$290K	Buy	+31,167	New	+$260K	﹤0.01%	2874
2025 Q2	–	Sell	-14,885	Closed	-$118K	–	3525
2025 Q1	$118K	Buy	14,885 +3,216	+28%	+$34.6K	﹤0.01%	3148
2024 Q4	$148K	Sell	11,669 -10,376	-47%	-$144K	﹤0.01%	3095
2024 Q3	$307K	Buy	22,045 +12,018	+120%	+$171K	﹤0.01%	2549
2024 Q2	$138K	Buy	+10,027	New	+$147K	﹤0.01%	2886

Other funds holding DAWN

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

Mariner's DAWN Position: Q2 2026 in Review

Mariner sold out of Day One Biopharmaceuticals (DAWN) in Q2 2026, closing a stake of 52,342 shares — an estimated $1.12M sold.

Mariner first reported a position in DAWN in Q2 2024 and held it in 6 quarters. The position peaked at $1.12M in Q1 2026. 1 fund tracked by Wall St. Rank holds DAWN as of Q2 2026.

Mariner reported no remaining Day One Biopharmaceuticals position as of Q2 2026 after selling out during the quarter.
Mariner sold 52,342 Day One Biopharmaceuticals shares in Q2 2026, an estimated $1.12M.
Mariner first reported a position in Day One Biopharmaceuticals in Q2 2024 and held it in 6 quarters.
Mariner's Day One Biopharmaceuticals position peaked at $1.12M in Q1 2026.
1 fund tracked by Wall St. Rank held Day One Biopharmaceuticals as of Q2 2026.

Based on Mariner's 13F filing for Q2 2026, filed 13 Aug 2026.