Samuel C. Blackman - Mar 10, 2023 Form 4 Insider Report for Day One Biopharmaceuticals, Inc. (DAWN)

Role
Chief Medical Officer
Signature
/s/ Charles N. York II, as Attorney-in-Fact
Stock symbol
DAWN
Transactions as of
Mar 10, 2023
Transactions value $
-$180,484
Form type
4
Date filed
3/14/2023, 06:19 PM
Previous filing
Feb 17, 2023
Next filing
May 17, 2023

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction DAWN Common Stock Sale -$180K -10K -0.8% $18.05 1.23M Mar 10, 2023 Direct F1, F2
holding DAWN Common Stock 1M Mar 10, 2023 By the 2021 Blackman Family LLC F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 23, 2022.
F2 The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $17.65 to $18.48 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F3 The Reporting Person is the sole manager, and has shared voting and dispositive power with his wife as members. The Reporting Person continues to report beneficial ownership of all of the Issuer's Common Stock held by the 2021 Blackman Family LLC but disclaims beneficial ownership except to the extent of his and his wife's pecuniary interest therein.