DAWN - Day One Biopharmaceuticals, Inc. - Insider Stock Trading

Filing Date	T Date	Ticker	Sector	Ind	Industry	Owner	oSt	Rel	Title	T	TVal	Price	Qty	oc	Own	H
4/22/24 18:36	4/18/24	DAWN	Health	Drug	Pharmaceutical Preparations	Blackman Samuel C.	CA	O	HEAD OF	S	-160	16.02	-10	0	2,175	D
3/26/24 18:09	3/25/24	DAWN	Health	Drug	Pharmaceutical Preparations	Blackman Samuel C.	CA	O	HEAD OF	S	-160	16.01	-10	0	2,185	D
3/13/24 16:24	3/11/24	DAWN	Health	Drug	Pharmaceutical Preparations	Blackman Samuel C.	CA	O	HEAD OF	S	-457	15.24	-30	-1	2,195	D
2/28/24 19:55	2/27/24	DAWN	Health	Drug	Pharmaceutical Preparations	Blackman Samuel C.	CA	O	HEAD OF	S	-322	16.11	-20	-1	2,225	D
2/20/24 18:48	2/15/24	DAWN	Health	Drug	Pharmaceutical Preparations	Dubow Adam	CA	O	GC	M.d	0	0.00	8	103	17	D
2/20/24 18:48	2/16/24	DAWN	Health	Drug	Pharmaceutical Preparations	Dubow Adam	CA	O	GC	S.d	-49	15.25	-3	-16	17	D
2/20/24 18:36	2/15/24	DAWN	Health	Drug	Pharmaceutical Preparations	York Charles N II	CA	O	COO,CFO,	M.d	0	0.00	10	4	278	D
2/20/24 18:36	2/16/24	DAWN	Health	Drug	Pharmaceutical Preparations	York Charles N II	CA	O	COO,CFO,	S.d	-41	15.25	-3	-1	278	D
2/20/24 18:26	2/15/24	DAWN	Health	Drug	Pharmaceutical Preparations	Blackman Samuel C.	CA	O	Head of	M.d	0	0.00	9	0	2,245	D
2/20/24 18:26	2/16/24	DAWN	Health	Drug	Pharmaceutical Preparations	Blackman Samuel C.	CA	O	Head of	S.d	-34	15.25	-2	0	2,245	D
2/20/24 18:14	2/15/24	DAWN	Health	Drug	Pharmaceutical Preparations	Bender Jeremy	CA	DO	CEO	M.d	0	0.00	20	1	1,766	D
2/20/24 18:14	2/16/24	DAWN	Health	Drug	Pharmaceutical Preparations	Bender Jeremy	CA	DO	CEO	S.d	-116	15.25	-8	0	1,766	D
11/17/23 18:33	11/15/23	DAWN	Health	Drug	Pharmaceutical Preparations	York Charles N II	CA	O	COO,CFO,	M.d	0	0.00	4	1	270	D
11/17/23 18:33	11/16/23	DAWN	Health	Drug	Pharmaceutical Preparations	York Charles N II	CA	O	COO,CFO,	S.d	-11	11.69	-1	0	270	D
11/17/23 18:30	11/15/23	DAWN	Health	Drug	Pharmaceutical Preparations	Dubow Adam	CA	O	GC	M.d	0	0.00	14		11	D
11/17/23 18:30	11/16/23	DAWN	Health	Drug	Pharmaceutical Preparations	Dubow Adam	CA	O	GC	S.d	-62	11.69	-5	-32	11	D
11/17/23 18:26	11/15/23	DAWN	Health	Drug	Pharmaceutical Preparations	Blackman Samuel C.	CA	O	Head of	M.d	0	0.00	3	0	2,238	D
11/17/23 18:26	11/16/23	DAWN	Health	Drug	Pharmaceutical Preparations	Blackman Samuel C.	CA	O	Head of	S.d	-8	11.69	-1	0	2,238	D
11/17/23 18:20	11/15/23	DAWN	Health	Drug	Pharmaceutical Preparations	Bender Jeremy	CA	DO	CEO	M.d	0	0.00	8	0	1,753	D
11/17/23 18:20	11/16/23	DAWN	Health	Drug	Pharmaceutical Preparations	Bender Jeremy	CA	DO	CEO	S.d	-36	11.69	-3	0	1,753	D
10/20/23 16:02	10/18/23	DAWN	Health	Drug	Pharmaceutical Preparations	Ai Day1 LLC	NY	T		P.m	14,978	10.15	1,475	13	12,929	D
8/17/23 19:02	8/15/23	DAWN	Health	Drug	Pharmaceutical Preparations	York Charles N II	CA	O	COO,CFO,	M.d	0	0.00	4	1	268	D
8/17/23 19:02	8/17/23	DAWN	Health	Drug	Pharmaceutical Preparations	York Charles N II	CA	O	COO,CFO,	S.d	-13	13.86	-1	0	268	D
8/17/23 18:21	8/15/23	DAWN	Health	Drug	Pharmaceutical Preparations	Blackman Samuel C.	CA	O	Head of	M.d	0	0.00	3	0	2,236	D
8/17/23 18:21	8/17/23	DAWN	Health	Drug	Pharmaceutical Preparations	Blackman Samuel C.	CA	O	Head of	S.d	-9	13.86	-1	0	2,236	D
8/17/23 18:16	8/15/23	DAWN	Health	Drug	Pharmaceutical Preparations	Bender Jeremy	CA	DO	CEO	M.d	0	0.00	8	0	1,748	D
8/17/23 18:16	8/17/23	DAWN	Health	Drug	Pharmaceutical Preparations	Bender Jeremy	CA	DO	CEO	S.d	-42	13.86	-3	0	1,748	D
6/12/23 16:03	6/9/23	DAWN	Health	Drug	Pharmaceutical Preparations	Ai Day1 LLC	NY	T		P	10,000	13.00	769	7	11,454	D
6/7/23 16:51	6/5/23	DAWN	Health	Drug	Pharmaceutical Preparations	Blackman Samuel C.	CA	O	Chief Me	S	-20	16.00	-1	0	2,234	D
5/17/23 18:36	5/15/23	DAWN	Health	Drug	Pharmaceutical Preparations	York Charles N II	CA	O	COO,CFO,	M.d	0	0.00	4	1	265	D
5/17/23 18:36	5/16/23	DAWN	Health	Drug	Pharmaceutical Preparations	York Charles N II	CA	O	COO,CFO,	S.d	-13	13.12	-1	0	265	D
5/17/23 18:31	5/15/23	DAWN	Health	Drug	Pharmaceutical Preparations	Blackman Samuel C.	CA	O	Chief Me	M.d	0	0.00	3	0	2,236	D
5/17/23 18:31	5/16/23	DAWN	Health	Drug	Pharmaceutical Preparations	Blackman Samuel C.	CA	O	Chief Me	S.d	-9	13.12	-1	0	2,236	D
5/17/23 18:27	5/15/23	DAWN	Health	Drug	Pharmaceutical Preparations	Bender Jeremy	CA	DO	CEO	M.d	0	0.00	8	0	1,743	D
5/17/23 18:27	5/16/23	DAWN	Health	Drug	Pharmaceutical Preparations	Bender Jeremy	CA	DO	CEO	S.d	-41	13.12	-3	0	1,743	D
3/14/23 18:19	3/10/23	DAWN	Health	Drug	Pharmaceutical Preparations	Blackman Samuel C.	CA	O	Chief Me	S	-180	18.05	-10	0	2,234	D
3/8/23 17:50	3/7/23	DAWN	Health	Drug	Pharmaceutical Preparations	Bender Jeremy	CA	DO	CEO	S	-250	20.01	-13	-1	1,737	D
3/3/23 17:48	3/1/23	DAWN	Health	Drug	Pharmaceutical Preparations	Grant Julie Papanek	CA	D		S	-465	18.61	-25	-1	2,881	I
2/21/23 17:01	2/17/23	DAWN	Health	Drug	Pharmaceutical Preparations	York Charles N II	CA	O	COO,CFO,	S	-188	20.03	-9	-3	262	D
2/17/23 17:35	2/15/23	DAWN	Health	Drug	Pharmaceutical Preparations	York Charles N II	CA	O	COO,CFO,	M.d	0	0.00	4	1	272	D
2/17/23 17:35	2/16/23	DAWN	Health	Drug	Pharmaceutical Preparations	York Charles N II	CA	O	COO,CFO,	S.d	-18	19.57	-1	0	272	D
2/17/23 17:30	2/15/23	DAWN	Health	Drug	Pharmaceutical Preparations	Blackman Samuel C.	CA	O	Chief Me	M.d	0	0.00	3	0	2,244	D
2/17/23 17:30	2/16/23	DAWN	Health	Drug	Pharmaceutical Preparations	Blackman Samuel C.	CA	O	Chief Me	S.d	-13	19.57	-1	0	2,244	D
2/17/23 17:26	2/15/23	DAWN	Health	Drug	Pharmaceutical Preparations	Bender Jeremy	CA	DO	CEO	M.d	0	0.00	8	0	1,750	D
2/17/23 17:26	2/16/23	DAWN	Health	Drug	Pharmaceutical Preparations	Bender Jeremy	CA	DO	CEO	S.d	-59	19.57	-3	0	1,750	D
2/13/23 18:28	2/10/23	DAWN	Health	Drug	Pharmaceutical Preparations	Blackman Samuel C.	CA	O	Chief Me	S	-201	20.07	-10	0	2,242	D
2/3/23 16:48	2/1/23	DAWN	Health	Drug	Pharmaceutical Preparations	Grant Julie Papanek	CA	D		S	-531	21.23	-25	-1	2,906	I
1/24/23 17:11	1/23/23	DAWN	Health	Drug	Pharmaceutical Preparations	Bender Jeremy	CA	DO	CEO	S	-275	22.00	-13	-1	1,745	D
1/23/23 18:00	1/20/23	DAWN	Health	Drug	Pharmaceutical Preparations	York Charles N II	CA	O	COO,CFO,	S	-228	22.75	-10	-4	269	D
1/11/23 17:09	1/10/23	DAWN	Health	Drug	Pharmaceutical Preparations	Blackman Samuel C.	CA	O	Chief Me	S	-229	22.86	-10	0	2,250	D
1/4/23 17:51	1/3/23	DAWN	Health	Drug	Pharmaceutical Preparations	Grant Julie Papanek	CA	D		S	-516	20.65	-25	-1	2,931	I
12/22/22 17:50	12/21/22	DAWN	Health	Drug	Pharmaceutical Preparations	Bender Jeremy	CA	DO	CEO	S	-254	20.32	-13	-1	1,756	D
12/22/22 17:43	12/20/22	DAWN	Health	Drug	Pharmaceutical Preparations	York Charles N II	CA	O	COO,CFO,	S	-201	20.07	-10	-3	276	D
12/12/22 16:56	12/8/22	DAWN	Health	Drug	Pharmaceutical Preparations	Grant Julie Papanek	CA	D		S	-96	22.08	-4	0	2,956	I
12/5/22 16:57	12/1/22	DAWN	Health	Drug	Pharmaceutical Preparations	Grant Julie Papanek	CA	D		S.m	-216	21.65	-10	0	2,960	I
12/5/22 16:43	12/1/22	DAWN	Health	Drug	Pharmaceutical Preparations	Blackman Samuel C.	CA	O	Chief Me	S	-215	21.45	-10	0	2,260	D
11/22/22 18:46	11/21/22	DAWN	Health	Drug	Pharmaceutical Preparations	York Charles N II	CA	O	COO,CFO,	S	-208	20.76	-10	-3	286	D
11/22/22 18:43	11/21/22	DAWN	Health	Drug	Pharmaceutical Preparations	Bender Jeremy	CA	DO	CEO	S	-259	20.76	-13	-1	1,768	D
11/17/22 17:49	11/15/22	DAWN	Health	Drug	Pharmaceutical Preparations	York Charles N II	CA	O	COO,CFO,	M.d	0	0.00	1	0	296	D
11/17/22 17:49	11/16/22	DAWN	Health	Drug	Pharmaceutical Preparations	York Charles N II	CA	O	COO,CFO,	S.d	-9	21.46	0	0	296	D
11/17/22 17:41	11/15/22	DAWN	Health	Drug	Pharmaceutical Preparations	Blackman Samuel C.	CA	O	Chief Me	M.d	0	0.00	1	0	2,270	D
11/17/22 17:41	11/16/22	DAWN	Health	Drug	Pharmaceutical Preparations	Blackman Samuel C.	CA	O	Chief Me	S.d	-8	21.46	0	0	2,270	D
11/17/22 17:33	11/15/22	DAWN	Health	Drug	Pharmaceutical Preparations	Bender Jeremy	CA	DO	CEO	M.d	0	0.00	4	0	1,781	D
11/17/22 17:33	11/16/22	DAWN	Health	Drug	Pharmaceutical Preparations	Bender Jeremy	CA	DO	CEO	S.d	-32	21.46	-2	0	1,781	D
11/3/22 17:49	11/1/22	DAWN	Health	Drug	Pharmaceutical Preparations	York Charles N II	CA	O	COO,CFO,	S	-200	20.03	-10	-3	294	D
11/3/22 17:44	11/1/22	DAWN	Health	Drug	Pharmaceutical Preparations	Grant Julie Papanek	CA	D		S.m	-200	20.03	-10	0	2,970	I
11/3/22 17:36	11/1/22	DAWN	Health	Drug	Pharmaceutical Preparations	Blackman Samuel C.	CA	O	Chief Me	S	-200	20.01	-10	0	2,269	D
11/3/22 17:30	11/1/22	DAWN	Health	Drug	Pharmaceutical Preparations	Bender Jeremy	CA	DO	CEO	S	-250	20.03	-13	-1	1,779	D
10/5/22 16:36	10/3/22	DAWN	Health	Drug	Pharmaceutical Preparations	York Charles N II	CA	O	COO,CFO,	S	-200	20.05	-10	-3	304	D
10/5/22 16:32	10/3/22	DAWN	Health	Drug	Pharmaceutical Preparations	Grant Julie Papanek	CA	D		S.m	-200	20.03	-10	0	7,395	I
10/5/22 16:25	10/3/22	DAWN	Health	Drug	Pharmaceutical Preparations	Blackman Samuel C.	CA	O	Chief Me	S	-200	19.99	-10	0	2,279	D
10/5/22 16:22	10/3/22	DAWN	Health	Drug	Pharmaceutical Preparations	Bender Jeremy	CA	DO	CEO	S	-251	20.05	-13	-1	1,791	D
9/22/22 16:00	9/21/22	DAWN	Health	Drug	Pharmaceutical Preparations	Canaan Xi L.P.	CT	T		S	-11,381	18.55	-614	-8	6,964	D
9/22/22 16:00	9/21/22	DAWN	Health	Drug	Pharmaceutical Preparations	Grant Julie Papanek	CA	D		S	-11,381	18.55	-614	-8	7,405	I
9/20/22 18:05	9/16/22	DAWN	Health	Drug	Pharmaceutical Preparations	Grant Julie Papanek	CA	D		S.m	-6,963	20.44	-341	-3	9,518	I
9/20/22 17:47	9/16/22	DAWN	Health	Drug	Pharmaceutical Preparations	Canaan Xi L.P.	CT	T		S.m	-6,963	20.44	-341	-4	9,078	D
9/15/22 19:53	9/13/22	DAWN	Health	Drug	Pharmaceutical Preparations	Grant Julie Papanek	CA	D		S.m	-5,823	23.76	-245	-2	9,858	I
9/15/22 19:48	9/13/22	DAWN	Health	Drug	Pharmaceutical Preparations	Canaan Xi L.P.	CT	T		S.m	-5,823	23.76	-245	-3	9,419	D
9/15/22 13:21	9/2/22	DAWN	Health	Drug	Pharmaceutical Preparations	Grant Papanek Julie	CA	D		S	-119	23.82	-5	0	10,103	I
9/6/22 19:54	9/1/22	DAWN	Health	Drug	Pharmaceutical Preparations	York Charles N II	CA	O	COO,CFO,	S	-232	23.25	-10	-3	314	D
9/6/22 19:52	9/1/22	DAWN	Health	Drug	Pharmaceutical Preparations	Grant Papanek Julie	CA	D		S	-116	23.27	-5	0	10,108	I
9/6/22 19:51	9/1/22	DAWN	Health	Drug	Pharmaceutical Preparations	Blackman Samuel C.	CA	O	Chief Me	S	-232	23.25	-10	0	2,289	D
9/6/22 19:50	9/1/22	DAWN	Health	Drug	Pharmaceutical Preparations	Bender Jeremy	CA	DO	CEO	S	-291	23.25	-13	-1	1,804	D
9/6/22 19:49	9/1/22	DAWN	Health	Drug	Pharmaceutical Preparations	Bender Jeremy	CA	DO	CEO	S	-291	23.25	-13	-1	1,804	D
8/17/22 19:25	8/15/22	DAWN	Health	Drug	Pharmaceutical Preparations	Blackman Samuel C.	CA	O	Chief Me	M.d	0	0.00	4	0	2,299	D
8/17/22 19:25	8/16/22	DAWN	Health	Drug	Pharmaceutical Preparations	Blackman Samuel C.	CA	O	Chief Me	S.d	-23	24.31	-1	0	2,299	D
8/17/22 19:24	8/15/22	DAWN	Health	Drug	Pharmaceutical Preparations	Bender Jeremy	CA	DO	CEO	M.d	0	0.00	11	1	1,816	D
8/17/22 19:24	8/16/22	DAWN	Health	Drug	Pharmaceutical Preparations	Bender Jeremy	CA	DO	CEO	S.d	-97	24.31	-4	0	1,816	D
8/17/22 19:23	8/15/22	DAWN	Health	Drug	Pharmaceutical Preparations	York Charles N II	CA	O	COO,CFO,	M.d	0	0.00	4	1	324	D
8/17/22 19:23	8/16/22	DAWN	Health	Drug	Pharmaceutical Preparations	York Charles N II	CA	O	COO,CFO,	S.d	-26	24.31	-1	0	324	D
8/8/22 20:03	8/4/22	DAWN	Health	Drug	Pharmaceutical Preparations	Grant Papanek Julie	CA	D		S.m	-200	20.00	-10	0	10,113	I
8/5/22 17:20	8/4/22	DAWN	Health	Drug	Pharmaceutical Preparations	York Charles N II	CA	O	COO,CFO,	S	-201	20.05	-10	-3	321	D
8/5/22 17:19	8/4/22	DAWN	Health	Drug	Pharmaceutical Preparations	Bender Jeremy	CA	DO	CEO	S	-250	20.00	-13	-1	1,809	D
8/3/22 18:57	8/1/22	DAWN	Health	Drug	Pharmaceutical Preparations	Blackman Samuel C.	CA	O	Chief Me	S	-169	16.88	-10	0	2,297	D
7/20/22 18:18	7/18/22	DAWN	Health	Drug	Pharmaceutical Preparations	York Charles N II	CA	O	COO,CFO,	S	-50	20.00	-3	-1	331	D
7/20/22 18:17	7/18/22	DAWN	Health	Drug	Pharmaceutical Preparations	Grant Papanek Julie	CA	D		S	-52	20.00	-3	0	10,123	I
7/20/22 18:17	7/18/22	DAWN	Health	Drug	Pharmaceutical Preparations	Bender Jeremy	CA	DO	CEO	S	-52	20.00	-3	0	1,822	D
7/12/22 21:14	7/1/22	DAWN	Health	Drug	Pharmaceutical Preparations	Grant Papanek Julie	CA	D		S.am	-36	20.00	-2	0	10,127	I
7/12/22 19:52	7/8/22	DAWN	Health	Drug	Pharmaceutical Preparations	Grant Papanek Julie	CA	D		S	-25	20.00	-1	0	10,126	I
7/12/22 19:31	7/8/22	DAWN	Health	Drug	Pharmaceutical Preparations	York Charles N II	CA	O	COO,CFO,	S	-28	20.00	-1	0	334	D
7/12/22 19:30	7/8/22	DAWN	Health	Drug	Pharmaceutical Preparations	Bender Jeremy	CA	DO	CEO	S	-36	20.00	-2	0	1,824	D
7/6/22 21:00	7/1/22	DAWN	Health	Drug	Pharmaceutical Preparations	York Charles N II	CA	O	COO,CFO,	S.m	-46	20.00	-2	-1	335	D
7/6/22 20:58	7/1/22	DAWN	Health	Drug	Pharmaceutical Preparations	Grant Papanek Julie	CA	D		S.m	-36	20.00	-2	0	463	I
7/6/22 20:57	7/1/22	DAWN	Health	Drug	Pharmaceutical Preparations	Blackman Samuel C.	CA	O	Chief Me	S	-187	18.72	-10	0	2,307	D
7/6/22 20:56	7/1/22	DAWN	Health	Drug	Pharmaceutical Preparations	Bender Jeremy	CA	DO	CEO	S.m	-52	20.00	-3	0	1,826	D
6/22/22 17:09	6/17/22	DAWN	Health	Drug	Pharmaceutical Preparations	Atlas Venture Opportunity Fund Ii, L.P.	MA	T		P	11,500	15.00	767	9	8,984	D
6/22/22 16:47	6/17/22	DAWN	Health	Drug	Pharmaceutical Preparations	Gladstone Michael	CA	D		P	11,500	15.00	767	New	767	I
6/21/22 16:37	6/17/22	DAWN	Health	Drug	Pharmaceutical Preparations	Ai Day1 LLC	NY	T		P	18,000	15.00	1,200	13	10,685	D
6/17/22 21:47	6/15/22	DAWN	Health	Drug	Pharmaceutical Preparations	Blackman Samuel C.	CA	O	Chief Me	S	-813	16.26	-50	-2	2,317	D
1/20/22 18:37	1/18/22	DAWN	Health	Drug	Pharmaceutical Preparations	Ai Day1 LLC	NY	T		P.m	1,552	14.52	107	1	9,485	D
1/5/22 20:08	1/3/22	DAWN	Health	Drug	Pharmaceutical Preparations	Blackman Samuel C.	CA	O	Chief Me	S	-171	17.10	-10	0	2,367	D
12/9/21 06:04	12/7/21	DAWN	Health	Drug	Pharmaceutical Preparations	Takeda Pharmaceutical Co Ltd	M0	T		S.m	-5,497	18.49	-297	-5	6,120	I
12/7/21 06:01	12/3/21	DAWN	Health	Drug	Pharmaceutical Preparations	Takeda Pharmaceutical Co Ltd	M0	T		S.m	-1,995	18.10	-110	-2	6,417	I
12/3/21 19:19	12/1/21	DAWN	Health	Drug	Pharmaceutical Preparations	Blackman Samuel C.	CA	O	Chief Me	S	-172	17.22	-10	0	2,377	M
6/3/21 16:42	6/1/21	DAWN	Health	Drug	Pharmaceutical Preparations	Ai Day 1 LLC	NY	T		P.d	14,000	16.00	875	10	9,378	D
6/2/21 20:52	6/1/21	DAWN	Health	Drug	Pharmaceutical Preparations	Grant Papanek Julie	CA	D		P.d	208	16.00	13	0	11,201	I
6/2/21 18:40	6/1/21	DAWN	Health	Drug	Pharmaceutical Preparations	Atlas Venture Fund Xi, L.P.	MA	T		P.d	8,000	16.00	500		250	I
6/2/21 17:12	6/1/21	DAWN	Health	Drug	Pharmaceutical Preparations	Canaan Xi L.P.	CT	T		P.d	208	16.00	13	0	10,736	D
6/1/21 21:51	6/1/21	DAWN	Health	Drug	Pharmaceutical Preparations	Josey John A.	CA	D		P.d	112	16.00	7	11	72	D
6/1/21 21:50	6/1/21	DAWN	Health	Drug	Pharmaceutical Preparations	Becker Daniel J.	CA	D		P.d	80	16.00	5	New	5	D

D	Derivative transaction in filing (usually option exercise)
M	Multiple transactions in filing; earliest reported transaction date and weighted average transaction price
A	Amended filing
E	Error detected in filing

S - Sale	Sale of securities on an exchange or to another person
S - Sale+OE	Sale of securities on an exchange or to another person (after option exercise)
F - Tax	Payment of exercise price or tax liability using portion of securities received from the company
P - Purchase	Purchase of securities on an exchange or from another person

TC

Stat

Stk

Ins

Fil

+d

+w

+m

+q

+h

+y

avg

Filing Date

T Date

Ticker

Sector

Ind

Industry

Owner

oSt

Rel

Title

T

TVal

Price

L

Qty

oc

Own

H

r2y

r1y

r6m

r3m

r6w

r3w

r7d

r3d

f1d

f1w

f1m

f3m

f6m

f1y