0001209191-23-055884.txt : 20231117
0001209191-23-055884.hdr.sgml : 20231117
20231117182611
ACCESSION NUMBER: 0001209191-23-055884
CONFORMED SUBMISSION TYPE: 4
PUBLIC DOCUMENT COUNT: 1
CONFORMED PERIOD OF REPORT: 20231115
FILED AS OF DATE: 20231117
DATE AS OF CHANGE: 20231117
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: Blackman Samuel C.
CENTRAL INDEX KEY: 0001863676
FILING VALUES:
FORM TYPE: 4
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-40431
FILM NUMBER: 231420322
MAIL ADDRESS:
STREET 1: 395 OYSTER POINT BLVD.
STREET 2: SUITE 217
CITY: SOUTH SAN FRANCISCO
STATE: CA
ZIP: 94080
ISSUER:
COMPANY DATA:
COMPANY CONFORMED NAME: Day One Biopharmaceuticals, Inc.
CENTRAL INDEX KEY: 0001845337
STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834]
IRS NUMBER: 832415215
STATE OF INCORPORATION: DE
FISCAL YEAR END: 1231
BUSINESS ADDRESS:
STREET 1: 2000 SIERRA POINT PARKWAY, SUITE 501
CITY: BRISBANE
STATE: CA
ZIP: 94005
BUSINESS PHONE: 650 484-0899
MAIL ADDRESS:
STREET 1: 2000 SIERRA POINT PARKWAY, SUITE 501
CITY: BRISBANE
STATE: CA
ZIP: 94005
FORMER COMPANY:
FORMER CONFORMED NAME: Day One Biopharmaceuticals Holding Co LLC
DATE OF NAME CHANGE: 20210209
4
1
doc4.xml
FORM 4 SUBMISSION
X0508
4
2023-11-15
0
0001845337
Day One Biopharmaceuticals, Inc.
DAWN
0001863676
Blackman Samuel C.
2000 SIERRA POINT PARKWAY, SUITE 501
BRISBANE
CA
94005
0
1
0
0
Head of Research and Developme
0
Common Stock
2023-11-15
4
M
0
1187
A
1237506
D
Common Stock
2023-11-15
4
M
0
1437
A
1238943
D
Common Stock
2023-11-16
4
S
0
709
11.69
D
1238234
D
Common Stock
1000000
I
See Footnote
Restricted Stock Units
2023-11-15
4
M
0
1187
0.00
D
Common Stock
1187
9504
D
Restricted Stock Units
2023-11-15
4
M
0
1437
0.00
D
Common Stock
1437
17252
D
Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock upon settlement for no consideration.
The sale of shares is for the sole purpose of covering the Reporting Person's tax liability with respect to the settlement of RSUs.
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.
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.
/s/ Charles N. York II, Attorney-in-Fact
2023-11-17