ArrowMark Colorado Holdings’s Mersana Therapeutics MRSN Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2021 Q1	–	Sell	-3,600	Closed	-$2.4M	–	350
2020 Q4	$2.4M	Hold	3,600	–	–	0.02%	257
2020 Q3	$1.68M	Hold	3,600	–	–	0.02%	268
2020 Q2	$2.11M	Buy	+3,600	New	+$1.23M	0.02%	230
2019 Q4	–	Sell	-16,541	Closed	-$653K	–	320
2019 Q3	$653K	Sell	16,541 -82,036	-83%	-$5.96M	0.01%	269
2019 Q2	$9.98M	Sell	98,577 -30,063	-23%	-$3.54M	0.1%	171
2019 Q1	$16.9M	Buy	128,640 +47,540	+59%	+$5.98M	0.16%	121
2018 Q4	$8.27M	Buy	81,100 +7,487	+10%	+$1.18M	0.09%	192
2018 Q3	$18.4M	Buy	73,613 +23,574	+47%	+$7.9M	0.16%	130
2018 Q2	$22.3M	Buy	50,039 +12,743	+34%	+$5.59M	0.21%	111
2018 Q1	$14.7M	Buy	37,296 +1,305	+4%	+$515K	0.15%	141
2017 Q4	$14.8M	Buy	35,991 +16,883	+88%	+$7.36M	0.15%	137
2017 Q3	$8.26M	Buy	19,108 +5,108	+36%	+$2.01M	0.1%	184
2017 Q2	$4.89M	Buy	+14,000	New	+$4.84M	0.06%	208