William Blair Investment Management’s Patterson-UTI PTEN Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Shares
Change %
Capital Flow Portfolio Weight Portfolio Position
2019
Q2
Sell
-51,241
Closed -$718K 410
2019
Q1
$718K Sell
51,241
-5,610
-10% -$78.6K ﹤0.01% 395
2018
Q4
$588K Buy
56,851
+8,315
+17% +$86K ﹤0.01% 398
2018
Q3
$830K Buy
48,536
+3,070
+7% +$52.5K ﹤0.01% 408
2018
Q2
$818K Sell
45,466
-4,858
-10% -$87.4K ﹤0.01% 417
2018
Q1
$881K Buy
50,324
+14,945
+42% +$262K ﹤0.01% 420
2017
Q4
$814K Buy
35,379
+3,935
+13% +$90.5K ﹤0.01% 417
2017
Q3
$658K Buy
31,444
+10,569
+51% +$221K ﹤0.01% 427
2017
Q2
$421K Sell
20,875
-1,274
-6% -$25.7K ﹤0.01% 444
2017
Q1
$538K Buy
22,149
+5,948
+37% +$144K ﹤0.01% 420
2016
Q4
$436K Sell
16,201
-3,344
-17% -$90K ﹤0.01% 421
2016
Q3
$437K Buy
19,545
+362
+2% +$8.09K ﹤0.01% 429
2016
Q2
$409K Sell
19,183
-4,449
-19% -$94.9K ﹤0.01% 444
2016
Q1
$416K Sell
23,632
-3,470
-13% -$61.1K ﹤0.01% 430
2015
Q4
$409K Sell
27,102
-16,057
-37% -$242K ﹤0.01% 431
2015
Q3
$567K Buy
+43,159
New +$567K ﹤0.01% 989