Panagora Asset Management’s Mersana Therapeutics MRSN Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q2	–	Sell	-14,818	Closed	-$128K	–	1180
2025 Q1	$128K	Buy	14,818 +5,231	+55%	+$80.7K	﹤0.01%	1069
2024 Q4	$343K	Buy	9,587 +259	+3%	+$13.4K	﹤0.01%	922
2024 Q3	$441K	Sell	9,328 -121	-1%	-$5.34K	﹤0.01%	959
2024 Q2	$475K	Buy	9,449 +7	+0.1%	+$506	﹤0.01%	927
2024 Q1	$1.06M	Sell	9,442 -613	-6%	-$60.9K	0.01%	778
2023 Q4	$583K	Sell	10,055 -17	-0.2%	-$684	﹤0.01%	955
2023 Q3	$320K	Sell	10,072 -788	-7%	-$37.5K	﹤0.01%	1063
2023 Q2	$893K	Buy	10,860 +2,212	+26%	+$324K	0.01%	821
2023 Q1	$889K	Buy	8,648 +1,009	+13%	+$142K	0.01%	882
2022 Q4	$1.12M	Buy	7,639 +168	+2%	+$28.4K	0.01%	845
2022 Q3	$1.26M	Buy	+7,471	New	+$1.21M	0.01%	765
2021 Q3	–	Sell	-9	Closed	-$3K	–	2120
2021 Q2	$3K	Sell	9 -710	-99%	-$269K	﹤0.01%	2578
2021 Q1	$291K	Sell	719 -47	-6%	-$22.8K	﹤0.01%	1577
2020 Q4	$508K	Buy	766 +47	+7%	+$26.1K	﹤0.01%	1223
2020 Q3	$335K	Sell	719 -3,727	-84%	-$1.88M	﹤0.01%	1308
2020 Q2	$2.6M	Sell	4,446 -2,124	-32%	-$725K	0.02%	579
2020 Q1	$957K	Buy	6,570 +1,604	+32%	+$280K	0.01%	862
2019 Q4	$711K	Sell	4,966 -6,556	-57%	-$479K	﹤0.01%	1178
2019 Q3	$455K	Buy	11,522 +7,599	+194%	+$553K	﹤0.01%	1320
2019 Q2	$397K	Buy	+3,923	New	+$462K	﹤0.01%	1510