Filing Details

Accession Number:
0001209191-23-030392
Form Type:
4
Zero Holdings:
No
Publication Time:
2023-05-17 18:31:16
Reporting Period:
2023-05-15
Accepted Time:
2023-05-17 18:31:16
SEC Url:
Form 4 Filing
Issuer
Cik Name Symbol Sector (SIC) IRS No
1845337 Day One Biopharmaceuticals Inc. DAWN Pharmaceutical Preparations (2834) 832415215
Insiders
Cik Name Reported Address Insider Title Director Officer Large Shareholder Other
1863676 C. Samuel Blackman 2000 Sierra Point Parkway, Suite 501
Brisbane CA 94005
Chief Medical Officer No Yes No No
Reported Non-Derivative Transactions
Sec. Name Acquisiton - Disposition Date Amount Price Remaning Holdings Equity Swap Involved Form Type Code Nature of Ownership Explanation
Common Stock Acquisiton 2023-05-15 1,187 $0.00 1,234,847 No 4 M Direct
Common Stock Acquisiton 2023-05-15 1,437 $0.00 1,236,284 No 4 M Direct
Common Stock Disposition 2023-05-16 692 $13.12 1,235,592 No 4 S Direct
Equity Swap Involved Form Type Code Nature of Ownership Explanation
No 4 M Direct
No 4 M Direct
No 4 S Direct
Reported Derivative Transactions
Sec. Name Sec. Type Acquisiton - Disposition Date Amount Price Amount - 2 Price - 2
Common Stock Restricted Stock Units Disposition 2023-05-15 1,187 $0.00 1,187 $0.00
Common Stock Restricted Stock Units Disposition 2023-05-15 1,437 $0.00 1,437 $0.00
Remaning Holdings Exercise Date Expiration Date Equity Swap Involved Transaction Form Type Transaction Code Nature of Ownership
11,878 No 4 M Direct
20,126 No 4 M Direct
Reported Non-Derivative Holdings
Sec. Name Remaning Holdings Nature of Ownership Explanation
Common Stock 1,000,000 Indirect See Footnote
Footnotes
  1. Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock upon settlement for no consideration.
  2. The sale of shares is for the sole purpose of covering the Reporting Person's tax liability with respect to the settlement of RSUs.
  3. 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.
  4. The RSUs will vest as to 1/16th of the total award in quarterly installments on February 15, May 15, August 15 and November 15, subject to the Reporting Person's provision of service to the Issuer on each vesting date.