American Century Companies’s Day One Biopharmaceuticals DAWN Stock Holding History

American Century Companies’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	$1.89M	Buy	88,278 +9,353	+12%	+$132K	﹤0.01%	2137
2025 Q4	$736K	Buy	78,925 +45,060	+133%	+$376K	﹤0.01%	2408
2025 Q3	$239K	Buy	33,865 +6,535	+24%	+$45K	﹤0.01%	2670
2025 Q2	$178K	Buy	27,330 +12,915	+90%	+$88.8K	﹤0.01%	2755
2025 Q1	$114K	Buy	+14,415	New	+$155K	﹤0.01%	2818

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

American Century Companies's DAWN Position: Q1 2026 in Review

American Century Companies increased its Day One Biopharmaceuticals (DAWN) stake by 12% in Q1 2026, buying an estimated $132K and bringing the position to 88,278 shares worth $1.89M. The position accounts for ﹤0.01% of the portfolio, ranked #2137.

American Century Companies first reported a position in DAWN in Q1 2025 and has held it in 5 quarters since. 206 funds tracked by Wall St. Rank hold DAWN as of Q1 2026.

American Century Companies held 88,278 shares of Day One Biopharmaceuticals worth $1.89M as of Q1 2026.
American Century Companies bought 9,353 Day One Biopharmaceuticals shares in Q1 2026, an estimated $132K.
Day One Biopharmaceuticals made up ﹤0.01% of American Century Companies's portfolio in Q1 2026, its #2137 holding.
American Century Companies first reported a position in Day One Biopharmaceuticals in Q1 2025 and has held it in 5 quarters since.
206 funds tracked by Wall St. Rank held Day One Biopharmaceuticals as of Q1 2026.

Based on American Century Companies's 13F filing for Q1 2026, filed 15 May 2026.