Tushar Misra

Date	Company	Security	Transaction	Code	Indirect	10b5-1	$Price	#Shares	$Value	#Remaining
16 Jan 24	MRSN Mersana Therapeutics	Common Stock	Sell	Dispose S	No	Yes	2.71	3,357	9.10 k	17,966
15 Jan 24	MRSN Mersana Therapeutics	RSU Common Stock	Grant	Acquire A	No	No	0	41,667	0.00	41,667
15 Jan 24	MRSN Mersana Therapeutics	Stock Option Common Stock	Grant	Acquire A	No	No	3.02	187,500	566.25 k	187,500
14 Jan 24	MRSN Mersana Therapeutics	Common Stock	Option exercise	Acquire M	No	No	0	1,458	0.00	21,323
14 Jan 24	MRSN Mersana Therapeutics	RSU Common Stock	Option exercise	Dispose M	No	No	0	1,458	0.00	2,916
13 Jan 24	MRSN Mersana Therapeutics	Common Stock	Option exercise	Acquire M	No	No	0	7,083	0.00	19,865
13 Jan 24	MRSN Mersana Therapeutics	RSU Common Stock	Option exercise	Dispose M	No	No	0	7,083	0.00	21,250
5 Sep 23	MRSN Mersana Therapeutics	RSU Common Stock	Grant	Acquire A	No	No	0	50,000	0.00	50,000
17 Aug 23	MRSN Mersana Therapeutics	Common Stock	Sell	Dispose S	No	Yes	1.18	1,908	2.25 k	11,507
16 Aug 23	MRSN Mersana Therapeutics	Common Stock	Option exercise	Acquire M	No	No	0	6,250	0.00	13,415

Data from 3, 4 and 5 filings. Values as filed, not updated for current price.