List of insiders holdings for Day One Biopharmaceuticals, Inc.:
  1. Shares directly owned by the insider.
  2. Shares indirectly owned by the insider.
  3. Total shares owned by the insider (sum of shares directly and indirectly owned).
  4. Total market value if available.
  5. Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
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Insider Holder NameReport
Date Time
Shares Owned
Directly
Indirectly
Total
Shares Owned
Filing
AI Day1 LLC
Access Industries Holdings LLC
ACCESS INDUSTRIES MANAGEMENT LLC
Blavatnik Len
10% Owner
2022-06-21 16:44:3410,684,638
0
10,684,638Form 13D
Atlas Venture Opportunity Fund II L.P.
Atlas Venture Fund XI L.P.
Atlas Venture Associates XI L.P.
Atlas Venture Associates XI LLC
Atlas Venture Opportunity Fund I L.P.
Atlas Venture Associates Opportunity I L.P.
Atlas Venture Associates Opportunity I LLC
10% Owner
2023-02-14 16:23:146,008,534
0
6,008,534Form 13G
Atlas Venture Fund XI L.P.
10% Owner
2023-02-14 16:23:146,008,534
0
6,008,534Form 13G
Atlas Venture Fund XI L.P.
Atlas Venture Opportunity Fund I L.P.
ATLAS VENTURE ASSOCIATES X L.P.
Atlas Venture Associates X LLC
Atlas Venture Associates Opportunity I LLC
Atlas Venture Associates Opportunity I L.P.
10% Owner
2023-02-14 16:23:146,008,534
0
6,008,534Form 13G
Grant Julie Papanek
Director
2023-03-03 17:48:330
2,880,761
2,880,761Form 4
Canaan XI L.P.
Canaan Partners XI LLC
10% Owner
2022-11-02 16:15:552,548,403
0
2,548,403Form 13D
Blackman Samuel C.
Chief Medical Officer
2023-03-14 18:19:331,233,660
1,000,000
2,233,660Form 4
Bender Jeremy
Chief Executive Officer
2023-03-08 17:50:221,174,276
563,148
1,737,424Form 4
Atlas Venture Opportunity Fund I L.P.
10% Owner
2022-07-06 16:42:35991,396
0
991,396Form 4
York Charles N II
COO, CFO and Secretary
2023-02-21 17:01:53262,128
0
262,128Form 4
Nicholson Garry A
Director
2022-09-14 19:34:0033,900
0
33,900Form 4
Gladstone Michael
Director
2022-06-23 20:27:5328,700
0
28,700Form 4
Ramasastry Saira
Director
2022-06-23 18:12:5928,700
0
28,700Form 4
Josey John A.
Director
2022-06-23 18:11:5428,700
0
28,700Form 4
Holles Natalie C.
Director
2022-06-23 18:11:0428,700
0
28,700Form 4
Garland J. Scott
Director
2022-06-23 18:09:1328,700
0
28,700Form 4
Becker Daniel J.
Director
2022-06-23 18:08:3628,700
0
28,700Form 4
TAKEDA PHARMACEUTICAL CO LTD
Takeda Pharmaceuticals U.S.A. Inc.
MILLENNIUM PHARMACEUTICALS INC
Takeda Ventures Inc.
10% Owner
2023-02-03 17:06:040
0
0Form 13G