DAY ONE BIOPHARMACEUTICALS I

Ticker: DAWN CUSIP: 23954D109 Class: Common Stock

OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AM's Holding History (CIK: 0001132716)

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

Q2 2025

Shares 107,249 Value ($000) $697 Avg Close $6.88 Range $6.08 - $8.14

Q1 2025

Shares 113,250 Value ($000) $898 Avg Close $10.77 Range $7.54 - $13.53

Q4 2024

Shares 50,020 Value ($000) $634 Avg Close $13.91 Range $12.11 - $16.76

Q1 2023

Shares 28,053 Value ($000) $375 Avg Close $19.53 Range $11.98 - $25.77

Q3 2022

Shares 37,000 Value ($000) $741,000 Avg Close $21.27 Range $16.00 - $28.35

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2025	107,249	$697	$6.88	$6.08 - $8.14
Q1 2025	113,250	$898	$10.77	$7.54 - $13.53
Q4 2024	50,020	$634	$13.91	$12.11 - $16.76
Q1 2023	28,053	$375	$19.53	$11.98 - $25.77
Q3 2022	37,000	$741,000	$21.27	$16.00 - $28.35