Lowinger Timothy B - Insider Stock Trading

Filing Date	T Date	Ticker	Issuer	Inc	Sector	Ind	Industry	Owner	oSt	Rel	Title	T	TVal	Price	Qty	oc	Own	H
10/7/24 17:46	10/1/24	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	SVP,Chie	M.d	0	0.00	50	27	236	D
10/7/24 17:46	10/2/24	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	SVP,Chie	S.dm	-27	1.98	-14	-5	236	D
1/17/24 17:19	1/13/24	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	SVP,Chie	M.dm	0	0.00	29	17	199	D
1/17/24 17:19	1/16/24	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	SVP,Chie	S.d	-28	2.71	-10	-5	199	D
1/18/23 20:14	1/14/23	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	SVP,Chie	M.dm	0	0.00	20	12	180	D
1/18/23 20:14	1/17/23	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	SVP,Chie	S.d	-36	5.74	-6	-3	180	D
12/16/22 16:46	12/14/22	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	SVP,Chie	M.d	53	1.49	35	27	167	D
1/19/22 18:25	1/14/22	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	Chief Sc	M.d	0	0.00	15	13	131	D
1/19/22 18:25	1/18/22	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	Chief Sc	S.d	-28	5.92	-5	-3	131	D
12/20/21 17:01	12/20/21	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	Chief Sc	M.d	64	1.40	46	61	121	D
8/24/21 16:31	8/20/21	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	Chief Sc	M.d	14	6.16	2	3	75	D
8/24/21 16:31	8/20/21	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	Chief Sc	S.d	-24	11.01	-2	-3	75	D
7/22/21 16:32	7/20/21	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	Chief Sc	M.d	14	6.16	2	3	75	D
7/22/21 16:32	7/20/21	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	Chief Sc	S.d	-27	12.11	-2	-3	75	D
7/19/21 20:50	7/15/21	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	Chief Sc	M.d	0	0.00	40	114	75	D
7/19/21 20:50	7/16/21	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	Chief Sc	S.dm	-199	12.24	-16	-18	75	D
7/9/21 17:25	7/8/21	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	CS,Techn	M.d	28	1.40	20	64	51	D
7/2/21 16:32	7/1/21	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	CS,Techn	M.d	7	3.52	2	6	31	D
7/2/21 16:32	7/1/21	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	CS,Techn	S.d	-26	13.60	-2	-6	31	D
6/23/21 16:30	6/21/21	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	Chief Sc	M.d	14	6.16	2	8	31	D
6/23/21 16:30	6/21/21	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	Chief Sc	S.d	-31	13.78	-2	-7	31	D
5/24/21 16:30	5/20/21	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	Chief Sc	M.d	20	4.95	4	15	31	D
5/24/21 16:30	5/20/21	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	Chief Sc	S.d	-58	14.10	-4	-12	31	D
4/22/21 16:16	4/20/21	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	Chief Sc	M.d	20	4.95	4	15	31	D
4/22/21 16:16	4/20/21	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	Chief Sc	S.d	-65	15.91	-4	-12	31	D
3/24/21 17:00	3/22/21	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	Chief Sc	M.d	41	4.95	8	35	31	D
3/24/21 17:00	3/22/21	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	Chief Sc	S.d	-144	17.50	-8	-21	31	D
2/24/21 17:00	2/22/21	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	Chief Sc	M.d	41	4.95	8	35	31	D
2/24/21 17:00	2/22/21	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	Chief Sc	S.d	-164	20.01	-8	-21	31	D
1/22/21 17:00	1/20/21	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	Chief Sc	M.d	41	4.95	8	35	31	D
1/22/21 17:00	1/20/21	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	Chief Sc	S.d	-177	21.54	-8	-21	31	D
1/20/21 19:05	1/15/21	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	Chief Sc	M.d	0	0.00	8	34	31	D
12/30/20 17:00	12/28/20	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	Chief Sc	M.d	13	1.40	9	53	26	D
12/22/20 16:34	12/21/20	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	Chief Sc	M.d	41	4.95	8		0	D
12/22/20 16:34	12/21/20	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	Chief Sc	S.d	-210	25.60	-8	-100	0	D
11/24/20 16:31	11/20/20	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	Chief Sc	M.d	41	4.95	8		0	D
11/24/20 16:31	11/20/20	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	Chief Sc	S.d	-189	23.05	-8	-100	0	D
10/22/20 16:31	10/20/20	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	Chief Sc	M.dm	74	2.95	25		17	D
10/22/20 16:31	10/20/20	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	Chief Sc	S.dm	-140	17.12	-8	-33	17	D
9/23/20 16:30	9/21/20	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	Chief Sc	M.d	41	4.95	8		0	D
9/23/20 16:30	9/21/20	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	Chief Sc	S.d	-426	20.66	-21	-100	0	D
9/25/18 17:07	9/24/18	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	Chief Sc	M.d	5	1.40	4	39	12	D
9/25/18 17:07	9/24/18	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	Chief Sc	S.d	-41	11.63	-4	-22	12	D
8/29/18 16:24	8/27/18	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	Chief Sc	M.d	26	7.43	4	39	12	D
8/29/18 16:24	8/27/18	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	Chief Sc	S.d	-46	13.15	-4	-22	12	D
7/25/18 16:04	7/23/18	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	Chief Sc	S	-39	11.06	-4	-22	12	D
7/5/18 18:59	7/3/18	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	Chief Sc	M.d	14	1.40	10	167	16	D
2/23/18 16:01	2/21/18	MRSN	Mersana Therapeutics, Inc.	DE	Health	Drug	Pharmaceutical Preparations	Lowinger Timothy B	MA	O	Chief Sc	M.d	41	6.98	6	New	6	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

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