0001209191-21-036141.txt : 20210526
0001209191-21-036141.hdr.sgml : 20210526
20210526215519
ACCESSION NUMBER: 0001209191-21-036141
CONFORMED SUBMISSION TYPE: 3
PUBLIC DOCUMENT COUNT: 1
CONFORMED PERIOD OF REPORT: 20210526
FILED AS OF DATE: 20210526
DATE AS OF CHANGE: 20210526
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: Atlas Venture Fund XI, L.P.
CENTRAL INDEX KEY: 0001708269
STATE OF INCORPORATION: DE
FISCAL YEAR END: 1231
FILING VALUES:
FORM TYPE: 3
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-40431
FILM NUMBER: 21968354
BUSINESS ADDRESS:
STREET 1: 400 TECHNOLOGY SQUARE
STREET 2: 10TH FLOOR
CITY: CAMBRIDGE
STATE: MA
ZIP: 02139
BUSINESS PHONE: 857-201-2700
MAIL ADDRESS:
STREET 1: 400 TECHNOLOGY SQUARE
STREET 2: 10TH FLOOR
CITY: CAMBRIDGE
STATE: MA
ZIP: 02139
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: Atlas Venture Associates X, LLC
CENTRAL INDEX KEY: 0001742765
STATE OF INCORPORATION: DE
FILING VALUES:
FORM TYPE: 3
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-40431
FILM NUMBER: 21968351
BUSINESS ADDRESS:
STREET 1: 400 TECH. SQ.
STREET 2: 10TH FLOOR
CITY: CAMBRIDGE
STATE: MA
ZIP: 02139
BUSINESS PHONE: 857-201-2700
MAIL ADDRESS:
STREET 1: 400 TECH. SQ.
STREET 2: 10TH FLOOR
CITY: CAMBRIDGE
STATE: MA
ZIP: 02139
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: ATLAS VENTURE ASSOCIATES X, L.P.
CENTRAL INDEX KEY: 0001742766
STATE OF INCORPORATION: DE
FILING VALUES:
FORM TYPE: 3
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-40431
FILM NUMBER: 21968352
BUSINESS ADDRESS:
STREET 1: 400 TECHNOLOGY SQ.
STREET 2: 10TH FLOOR
CITY: CAMBRIDGE
STATE: MA
ZIP: 02139
BUSINESS PHONE: 857-201-2700
MAIL ADDRESS:
STREET 1: 400 TECHNOLOGY SQ.
STREET 2: 10TH FLOOR
CITY: CAMBRIDGE
STATE: MA
ZIP: 02139
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: Atlas Venture Opportunity Fund I, L.P.
CENTRAL INDEX KEY: 0001759241
STATE OF INCORPORATION: DE
FISCAL YEAR END: 1231
FILING VALUES:
FORM TYPE: 3
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-40431
FILM NUMBER: 21968353
BUSINESS ADDRESS:
STREET 1: 400 TECHNOLOGY SQUARE, 10TH FLOOR
CITY: CAMBRIDGE
STATE: MA
ZIP: 02139
BUSINESS PHONE: 857-201-2700
MAIL ADDRESS:
STREET 1: 400 TECHNOLOGY SQUARE, 10TH FLOOR
CITY: CAMBRIDGE
STATE: MA
ZIP: 02139
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: Atlas Venture Associates Opportunity I, L.P.
CENTRAL INDEX KEY: 0001780065
STATE OF INCORPORATION: DE
FISCAL YEAR END: 1231
FILING VALUES:
FORM TYPE: 3
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-40431
FILM NUMBER: 21968349
BUSINESS ADDRESS:
STREET 1: 400 TECHNOLOGY SQUARE
STREET 2: 10TH FLOOR
CITY: CAMBRIDGE
STATE: MA
ZIP: 02139
BUSINESS PHONE: 857-201-2700
MAIL ADDRESS:
STREET 1: 400 TECHNOLOGY SQUARE
STREET 2: 10TH FLOOR
CITY: CAMBRIDGE
STATE: MA
ZIP: 02139
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: Atlas Venture Associates Opportunity I, LLC
CENTRAL INDEX KEY: 0001780066
STATE OF INCORPORATION: DE
FISCAL YEAR END: 1231
FILING VALUES:
FORM TYPE: 3
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-40431
FILM NUMBER: 21968350
BUSINESS ADDRESS:
STREET 1: 400 TECHNOLOGY SQUARE
STREET 2: 10TH FLOOR
CITY: CAMBRIDGE
STATE: MA
ZIP: 02139
BUSINESS PHONE: 857-201-2700
MAIL ADDRESS:
STREET 1: 400 TECHNOLOGY SQUARE
STREET 2: 10TH FLOOR
CITY: CAMBRIDGE
STATE: MA
ZIP: 02139
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: 395 OYSTER POINT BLVD STE 217
CITY: SOUTH SAN FRANCISCO
STATE: CA
ZIP: 94080-1930
BUSINESS PHONE: 206-913-4300
MAIL ADDRESS:
STREET 1: 395 OYSTER POINT BLVD STE 217
CITY: SOUTH SAN FRANCISCO
STATE: CA
ZIP: 94080-1930
FORMER COMPANY:
FORMER CONFORMED NAME: Day One Biopharmaceuticals Holding Co LLC
DATE OF NAME CHANGE: 20210209
3
1
doc3.xml
FORM 3 SUBMISSION
X0206
3
2021-05-26
0
0001845337
Day One Biopharmaceuticals, Inc.
DAWN
0001708269
Atlas Venture Fund XI, L.P.
300 TECHNOLOGY SQUARE, 8TH FLOOR
CAMBRIDGE
MA
02139
0
0
1
0
0001759241
Atlas Venture Opportunity Fund I, L.P.
300 TECHNOLOGY SQUARE, 8TH FLOOR
CAMBRIDGE
MA
02139
0
0
1
0
0001742766
ATLAS VENTURE ASSOCIATES X, L.P.
300 TECHNOLOGY SQUARE, 8TH FLOOR
CAMBRIDGE
MA
02139
0
0
1
0
0001742765
Atlas Venture Associates X, LLC
300 TECHNOLOGY SQUARE, 8TH FLOOR
CAMBRIDGE
MA
02139
0
0
1
0
0001780066
Atlas Venture Associates Opportunity I, LLC
300 TECHNOLOGY SQUARE, 8TH FLOOR
CAMBRIDGE
MA
02139
0
0
1
0
0001780065
Atlas Venture Associates Opportunity I, L.P.
300 TECHNOLOGY SQUARE, 8TH FLOOR
CAMBRIDGE
MA
02139
0
0
1
0
Series A Preferred Stock
Common Stock
7761380
D
Series B Preferred Stock
Common Stock
741396
D
Each share of Series A Preferred Stock is automatically convertible into one share of Common Stock at the close of the Issuer's offering and has no expiration date.
The shares are held directly by Atlas Venture Fund XI, L.P. ("Fund XI"). The general partner of Fund XI is Atlas Venture Associates XI, L.P. ("AVA XI LP"). Atlas Venture Associates XI, LLC ("AVA XI LLC") is the general partner of AVA XI LP. Each of AVA XI LP and AVA XI LLC disclaims Section 16 beneficial ownership of the securities held by Fund XI, except to the extent of its pecuniary interest therein, if any.
Each share of Series B Preferred Stock is automatically convertible into one share of Common Stock at the close of the Issuer's offering and has no expiration date.
The shares are held directly by Atlas Venture Opportunity Fund I, L.P. ("Atlas Venture Opportunity Fund I"). The general partner of Atlas Venture Opportunity Fund I is Atlas Venture Associates Opportunity I, L.P. ("AVAO I LP"). Atlas Venture Associates Opportunity I, LLC ("AVAO I LLC") is the general partner of AVAO I LP. Each of AVAO I LP and AVAO I LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Venture Opportunity Fund I, except to the extent of its pecuniary interest therein, if any.
/s/ Ommer Chohan
2021-05-26