ACH
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ArrowMark Colorado Holdings’s Mersana Therapeutics MRSN Stock Holding History

Quarter Market Value Status Shares Shares
Change %
Trade Value Portfolio Weight Portfolio Position
2021
Q1
Sell
-90,000
Closed -$2.4M 350
2020
Q4
$2.4M Hold
90,000
0.02% 257
2020
Q3
$1.68M Hold
90,000
0.02% 268
2020
Q2
$2.11M Buy
+90,000
New +$2.11M 0.02% 230
2019
Q4
Sell
-413,525
Closed -$653K 319
2019
Q3
$653K Sell
413,525
-2,050,890
-83% -$3.24M 0.01% 268
2019
Q2
$9.98M Sell
2,464,415
-751,587
-23% -$3.04M 0.1% 171
2019
Q1
$16.9M Buy
3,216,002
+1,188,497
+59% +$6.25M 0.16% 121
2018
Q4
$8.27M Buy
2,027,505
+187,172
+10% +$764K 0.09% 186
2018
Q3
$18.4M Buy
1,840,333
+589,356
+47% +$5.89M 0.15% 125
2018
Q2
$22.3M Buy
1,250,977
+318,581
+34% +$5.69M 0.21% 107
2018
Q1
$14.7M Buy
932,396
+32,623
+4% +$514K 0.15% 135
2017
Q4
$14.8M Buy
899,773
+422,062
+88% +$6.93M 0.15% 133
2017
Q3
$8.26M Buy
477,711
+127,711
+36% +$2.21M 0.09% 176
2017
Q2
$4.89M Buy
+350,000
New +$4.89M 0.06% 204