Robeco Institutional Asset Management
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Robeco Institutional Asset Management’s Patterson-UTI PTEN Stock Holding History

Quarter Market Value Status Shares Shares
Change %
Trade Value Portfolio Weight Portfolio Position
2025
Q2
Sell
-332,449
Closed -$2.73M 914
2025
Q1
$2.73M Hold
332,449
0.01% 659
2024
Q4
$2.75M Buy
+332,449
New +$2.75M 0.01% 647
2021
Q4
Sell
-219,275
Closed -$1.98M 944
2021
Q3
$1.98M Sell
219,275
-162,464
-43% -$1.46M ﹤0.01% 665
2021
Q2
$3.79M Sell
381,739
-86,382
-18% -$859K 0.01% 619
2021
Q1
$3.34M Sell
468,121
-327,418
-41% -$2.34M 0.01% 601
2020
Q4
$4.18M Sell
795,539
-27,994
-3% -$147K 0.01% 571
2020
Q3
$2.35M Sell
823,533
-595,386
-42% -$1.7M 0.01% 614
2020
Q2
$4.92M Sell
1,418,919
-159,229
-10% -$553K 0.02% 538
2020
Q1
$3.71M Buy
1,578,148
+83,543
+6% +$196K 0.01% 588
2019
Q4
$15.7M Buy
1,494,605
+908,100
+155% +$9.53M 0.05% 390
2019
Q3
$5.01M Buy
+586,505
New +$5.01M 0.02% 591
2014
Q4
Sell
-48,587
Closed -$1.58M 779
2014
Q3
$1.58M Buy
+48,587
New +$1.58M 0.01% 486