BlackRock’s Mersana Therapeutics MRSN Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Shares
Change %
Capital Flow Portfolio Weight Portfolio Position
2025
Q2
$1.11M Sell
150,537
-182,510
-55% -$1.35M ﹤0.01% 4144
2025
Q1
$2.87M Sell
333,047
-35,160
-10% -$303K ﹤0.01% 3833
2024
Q4
$13.2M Buy
368,207
+23,333
+7% +$834K ﹤0.01% 3237
2024
Q3
$16.3M Buy
344,874
+9,518
+3% +$450K ﹤0.01% 3125
2024
Q2
$16.9M Buy
335,356
+11,527
+4% +$579K ﹤0.01% 3035
2024
Q1
$36.3M Buy
323,829
+10,058
+3% +$1.13M ﹤0.01% 2587
2023
Q4
$18.2M Sell
313,771
-5,135
-2% -$298K ﹤0.01% 3004
2023
Q3
$10.1M Buy
318,906
+347
+0.1% +$11K ﹤0.01% 3274
2023
Q2
$26.2M Buy
318,559
+19,606
+7% +$1.61M ﹤0.01% 2811
2023
Q1
$30.7M Sell
298,953
-724
-0.2% -$74.4K ﹤0.01% 2697
2022
Q4
$43.9M Buy
299,677
+16,154
+6% +$2.37M ﹤0.01% 2531
2022
Q3
$47.9M Sell
283,523
-71,718
-20% -$12.1M ﹤0.01% 2440
2022
Q2
$41M Buy
355,241
+50,193
+16% +$5.8M ﹤0.01% 2589
2022
Q1
$30.4M Buy
305,048
+5,879
+2% +$586K ﹤0.01% 2847
2021
Q4
$46.5M Sell
299,169
-53,124
-15% -$8.26M ﹤0.01% 2666
2021
Q3
$83.1M Sell
352,293
-615
-0.2% -$145K ﹤0.01% 2308
2021
Q2
$120M Buy
352,908
+32,825
+10% +$11.1M ﹤0.01% 2128
2021
Q1
$129M Buy
320,083
+571
+0.2% +$231K ﹤0.01% 2019
2020
Q4
$213M Buy
319,512
+29,432
+10% +$19.6M 0.01% 1562
2020
Q3
$135M Buy
290,080
+4,570
+2% +$2.13M 0.01% 1672
2020
Q2
$167M Buy
285,510
+154,051
+117% +$90.1M 0.01% 1481
2020
Q1
$19.2M Buy
131,459
+32,846
+33% +$4.79M ﹤0.01% 2585
2019
Q4
$14.1M Buy
98,613
+1,343
+1% +$192K ﹤0.01% 3032
2019
Q3
$3.84M Buy
97,270
+1,651
+2% +$65.2K ﹤0.01% 3512
2019
Q2
$9.68M Buy
95,619
+59,705
+166% +$6.04M ﹤0.01% 3236
2019
Q1
$4.72M Buy
35,914
+4,669
+15% +$614K ﹤0.01% 3396
2018
Q4
$3.19M Sell
31,245
-9,757
-24% -$995K ﹤0.01% 3501
2018
Q3
$10.3M Buy
41,002
+748
+2% +$187K ﹤0.01% 3199
2018
Q2
$18M Buy
40,254
+7,534
+23% +$3.36M ﹤0.01% 2901
2018
Q1
$12.9M Buy
32,720
+9,628
+42% +$3.8M ﹤0.01% 2973
2017
Q4
$9.49M Buy
23,092
+12,541
+119% +$5.15M ﹤0.01% 3139
2017
Q3
$4.56M Buy
+10,551
New +$4.56M ﹤0.01% 3434