DAY ONE BIOPHARMACEUTICALS I

Ticker: DAWN CUSIP: 23954D109 Class: Common Stock

SHERBROOKE PARK ADVISERS LLC's Holding History (CIK: 0001965377)

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

Q3 2025

Shares 11,457 Value ($000) $81 Avg Close $6.88 Range $5.63 - $7.74

Q2 2025

Shares 24,998 Value ($000) $162 Avg Close $6.88 Range $6.08 - $8.14

Q4 2024

Shares 14,865 Value ($000) $188 Avg Close $13.91 Range $12.11 - $16.76

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	11,457	$81	$6.88	$5.63 - $7.74
Q2 2025	24,998	$162	$6.88	$6.08 - $8.14
Q4 2024	14,865	$188	$13.91	$12.11 - $16.76