DAY ONE BIOPHARMACEUTICALS I

Ticker: DAWN CUSIP: 23954D109 Class: Common Stock

Alyeska Investment Group, L.P.'s Holding History (CIK: 0001453072)

Note: Option positions (PUT/CALL) are excluded.

Q3 2025
Shares 2,212,187 Value ($000) $15,596 Avg Close $6.88 Range $5.63 - $7.74
Q2 2025
Shares 3,012,187 Value ($000) $19,579 Avg Close $6.88 Range $6.08 - $8.14
Q1 2025
Shares 4,059,764 Value ($000) $32,194 Avg Close $10.77 Range $7.54 - $13.53
Q4 2024
Shares 2,512,187 Value ($000) $31,829 Avg Close $13.91 Range $12.11 - $16.76
Q4 2023
Shares 390,167 Value ($000) $5,696 Avg Close $12.12 Range $9.67 - $15.60
Q3 2023
Shares 390,167 Value ($000) $4,787 Avg Close $13.04 Range $11.13 - $15.36
Q2 2023
Shares 390,167 Value ($000) $4,659 Avg Close $13.06 Range $10.84 - $16.00
Q1 2023
Shares 265,167 Value ($000) $3,545 Avg Close $19.53 Range $11.98 - $25.77
Q4 2022
Shares 143,218 Value ($000) $3,082 Avg Close $20.51 Range $17.66 - $23.10
Q3 2022
Shares 142,143 Value ($000) $2,847 Avg Close $21.27 Range $16.00 - $28.35
Q2 2022
Shares 217,143 Value ($000) $3,887 Avg Close $10.33 Range $5.44 - $18.22
Q1 2022
Shares 103,200 Value ($000) $1,024 Avg Close $13.21 Range $9.03 - $17.70
Q4 2021
Shares 103,200 Value ($000) $1,739 Avg Close $20.55 Range $15.16 - $26.62
Q3 2021
Shares 103,200 Value ($000) $2,449 Avg Close $23.96 Range $19.76 - $28.70
Q2 2021
Shares 103,200 Value ($000) $2,350 Avg Close $20.76 Range $17.19 - $27.04