Simplex Trading
DAWN

Simplex Trading’s Day One Biopharmaceuticals DAWN Stock Holding History

Simplex Trading’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 		$1.9M Buy
+88,400
New +$1.25M ﹤0.01% 1864
2025
Q4 		– Sell
-200
Closed -$1K – 8847
2025
Q3 		$1K Buy
+200
New +$1.38K ﹤0.01% 8788
2025
Q2 		– Sell
-3,200
Closed -$25K – 8835
2025
Q1 		$25K Sell
3,200
-7,800
-71% -$84K ﹤0.01% 6393
2024
Q4 		$139K Sell
11,000
-40,200
-79% -$559K ﹤0.01% 4873
2024
Q3 		$713K Sell
51,200
-1,100
-2% -$15.7K ﹤0.01% 3237
2024
Q2 		$720K Buy
52,300
+39,800
+318% +$582K ﹤0.01% 3263
2024
Q1 		$206K Buy
12,500
+10,500
+525% +$157K ﹤0.01% 4821
2023
Q4 		$29K Sell
2,000
-300
-13% -$3.64K ﹤0.01% 6582
2023
Q3 		$28K Sell
2,300
-1,200
-34% -$15.7K ﹤0.01% 6306
2023
Q2 		$41K Buy
3,500
+2,800
+400% +$36.6K ﹤0.01% 6033
2023
Q1 		$9K Buy
700
+200
+40% +$3.91K ﹤0.01% 7607
2022
Q4 		$10K Sell
500
-700
-58% -$14.4K ﹤0.01% 7524
2022
Q3 		$24K Sell
1,200
-45,400
-97% -$966K ﹤0.01% 7317
2022
Q2 		$834K Buy
+46,600
New +$481K ﹤0.01% 2823

Other funds holding DAWN

BlackRock
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
Fidelity International Hamilton, Bermuda $129B AUM 30.83% 1-Year Est. Return
KC
Kryger Capital London, United Kingdom $1.41B AUM 86.31% 1-Year Est. Return
DM
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
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Balyasny Asset Management
Balyasny Asset Management Chicago, Illinois $77.1B AUM 42.89% 1-Year Est. Return
AA
AQR Arbitrage Greenwich, Connecticut $6.09B AUM 27.01% 1-Year Est. Return

Simplex Trading's DAWN Position: Q1 2026 in Review

Simplex Trading opened a new position in Day One Biopharmaceuticals (DAWN) in Q1 2026: 64,464 shares worth $1.38M. The stake represents ﹤0.01% of the portfolio and ranks #2162 among its holdings. This is a return to the name: Simplex Trading previously reported a position in DAWN as recently as Q1 2025.

Simplex Trading first reported a position in DAWN in Q2 2022 and has held it in 8 quarters since. The position peaked at $2.38M in Q2 2022. 206 funds tracked by Wall St. Rank hold DAWN as of Q1 2026.

  • Simplex Trading held 64,464 shares of Day One Biopharmaceuticals worth $1.38M as of Q1 2026.
  • Day One Biopharmaceuticals was a new Simplex Trading position in Q1 2026.
  • Day One Biopharmaceuticals made up ﹤0.01% of Simplex Trading's portfolio in Q1 2026, its #2162 holding.
  • Simplex Trading first reported a position in Day One Biopharmaceuticals in Q2 2022 and has held it in 8 quarters since.
  • Simplex Trading's Day One Biopharmaceuticals position peaked at $2.38M in Q2 2022.
  • 206 funds tracked by Wall St. Rank held Day One Biopharmaceuticals as of Q1 2026.

Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.