Marshall Wace
PRAH

Marshall Wace’s PRA Health Sciences, Inc. PRAH Stock Holding History

Quarter Market Value Status Shares Shares
Change %
Trade Value Portfolio Weight Portfolio Position
2021
Q3
Sell
-134,119
Closed -$22.2M 3428
2021
Q2
$22.2M Sell
134,119
-2,979
-2% -$492K 0.1% 183
2021
Q1
$21M Buy
+137,098
New +$21M 0.1% 185
2020
Q2
Sell
-7,556
Closed -$627K 2064
2020
Q1
$627K Sell
7,556
-97,610
-93% -$8.1M 0.01% 915
2019
Q4
$11.7M Buy
105,166
+39,613
+60% +$4.4M 0.08% 262
2019
Q3
$6.51M Sell
65,553
-206,827
-76% -$20.5M 0.05% 396
2019
Q2
$27M Buy
272,380
+181,867
+201% +$18M 0.22% 91
2019
Q1
$9.98M Buy
90,513
+78,499
+653% +$8.66M 0.09% 260
2018
Q4
$1.11M Sell
12,014
-40,632
-77% -$3.74M 0.01% 885
2018
Q3
$5.8M Buy
+52,646
New +$5.8M 0.05% 428
2018
Q1
Sell
-78,160
Closed -$7.12M 673
2017
Q4
$7.12M Buy
78,160
+66,971
+599% +$6.1M 0.3% 72
2017
Q3
$850K Buy
+11,189
New +$850K 0.04% 239
2017
Q2
Sell
-17,927
Closed -$1.17M 405
2017
Q1
$1.17M Sell
17,927
-1,238,174
-99% -$80.5M 0.06% 196
2016
Q4
$69.2M Buy
1,256,101
+401,341
+47% +$22.1M 0.46% 47
2016
Q3
$48.3M Sell
854,760
-45,233
-5% -$2.56M 0.34% 75
2016
Q2
$37.6M Sell
899,993
-2,252
-0.2% -$94K 0.32% 74
2016
Q1
$38.6M Buy
902,245
+655,624
+266% +$28M 0.37% 71
2015
Q4
$11.2M Sell
246,621
-8,677
-3% -$393K 0.1% 205
2015
Q3
$9.91M Buy
255,298
+3,923
+2% +$152K 0.12% 180
2015
Q2
$9.13M Buy
251,375
+22,104
+10% +$803K 0.12% 190
2015
Q1
$6.61M Hold
229,271
0.09% 261
2014
Q4
$5.55M Buy
+229,271
New +$5.55M 0.07% 289