Marshall Wace
MRK icon

Marshall Wace’s Merck MRK Stock Holding History

Quarter Market Value Status Shares Shares
Change %
Trade Value Portfolio Weight Portfolio Position
2025
Q2
$249M Buy
3,144,500
+3,136,893
+41,237% +$248M 0.28% 54
2025
Q1
$683K Buy
7,607
+7,276
+2,198% +$653K ﹤0.01% 1833
2024
Q4
$32.9K Sell
331
-3,029
-90% -$301K ﹤0.01% 2321
2024
Q3
$382K Sell
3,360
-2,580,823
-100% -$293M ﹤0.01% 1883
2024
Q2
$320M Buy
2,584,183
+634,194
+33% +$78.5M 0.43% 30
2024
Q1
$257M Sell
1,949,989
-2,039,971
-51% -$269M 0.39% 36
2023
Q4
$435M Buy
3,989,960
+1,938,555
+94% +$211M 0.74% 12
2023
Q3
$211M Buy
2,051,405
+1,875,318
+1,065% +$193M 0.43% 35
2023
Q2
$20.3M Buy
+176,087
New +$20.3M 0.04% 416
2023
Q1
Sell
-1,033,806
Closed -$115M 2431
2022
Q4
$115M Buy
1,033,806
+372,519
+56% +$41.3M 0.26% 71
2022
Q3
$57M Sell
661,287
-5,140,458
-89% -$443M 0.12% 151
2022
Q2
$529M Sell
5,801,745
-983,823
-14% -$89.7M 1.09% 4
2022
Q1
$557M Buy
6,785,568
+6,746,481
+17,260% +$554M 1.05% 8
2021
Q4
$3M Buy
39,087
+36,573
+1,455% +$2.8M 0.01% 1467
2021
Q3
$189K Buy
+2,514
New +$189K ﹤0.01% 2218
2021
Q1
Sell
-54,136
Closed -$4.43M 2376
2020
Q4
$4.43M Sell
54,136
-206,854
-79% -$16.9M 0.02% 565
2020
Q3
$21.7M Buy
260,990
+97,378
+60% +$8.08M 0.14% 136
2020
Q2
$12.7M Sell
163,612
-158,205
-49% -$12.2M 0.09% 212
2020
Q1
$24.8M Sell
321,817
-32,736
-9% -$2.52M 0.25% 88
2019
Q4
$32.2M Buy
354,553
+147,992
+72% +$13.5M 0.22% 94
2019
Q3
$17.4M Sell
206,561
-257,708
-56% -$21.7M 0.14% 163
2019
Q2
$38.9M Buy
464,269
+244,145
+111% +$20.5M 0.32% 51
2019
Q1
$18.3M Buy
220,124
+86,159
+64% +$7.17M 0.17% 143
2018
Q4
$10.2M Buy
133,965
+70,868
+112% +$5.42M 0.1% 230
2018
Q3
$4.48M Buy
63,097
+29,699
+89% +$2.11M 0.04% 479
2018
Q2
$2.03M Buy
+33,398
New +$2.03M 0.03% 425
2017
Q3
Sell
-22,083
Closed -$1.41M 391
2017
Q2
$1.41M Buy
+22,083
New +$1.41M 0.06% 155
2017
Q1
Sell
-480,610
Closed -$28.3M 583
2016
Q4
$28.3M Sell
480,610
-763,858
-61% -$45M 0.19% 151
2016
Q3
$77.7M Buy
1,244,468
+1,179,053
+1,802% +$73.6M 0.55% 39
2016
Q2
$3.77M Sell
65,415
-145,488
-69% -$8.38M 0.03% 442
2016
Q1
$11.2M Sell
210,903
-233,977
-53% -$12.4M 0.11% 201
2015
Q4
$23.5M Buy
444,880
+425,949
+2,250% +$22.5M 0.22% 113
2015
Q3
$935K Sell
18,931
-643,454
-97% -$31.8M 0.01% 633
2015
Q2
$37.7M Buy
662,385
+527,201
+390% +$30M 0.49% 55
2015
Q1
$7.77M Sell
135,184
-170,820
-56% -$9.82M 0.1% 239
2014
Q4
$17.4M Sell
306,004
-150,882
-33% -$8.57M 0.23% 117
2014
Q3
$27.1M Buy
456,886
+426,747
+1,416% +$25.3M 0.39% 66
2014
Q2
$1.74M Buy
+30,139
New +$1.74M 0.03% 417