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

Robeco Institutional Asset Management’s Portfolio PTEN Stock Details PTEN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		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 +$2.67M 0.01% 647
2021
Q4 		– Sell
-219,275
Closed -$1.98M – 944
2021
Q3 		$1.98M Sell
219,275
-162,464
-43% -$1.32M ﹤0.01% 665
2021
Q2 		$3.79M Sell
381,739
-86,382
-18% -$731K 0.01% 619
2021
Q1 		$3.34M Sell
468,121
-327,418
-41% -$2.31M 0.01% 601
2020
Q4 		$4.18M Sell
795,539
-27,994
-3% -$110K 0.01% 571
2020
Q3 		$2.35M Sell
823,533
-595,386
-42% -$2.19M 0.01% 614
2020
Q2 		$4.92M Sell
1,418,919
-159,229
-10% -$549K 0.02% 538
2020
Q1 		$3.71M Buy
1,578,148
+83,543
+6% +$541K 0.01% 588
2019
Q4 		$15.7M Buy
1,494,605
+908,100
+155% +$8.22M 0.05% 390
2019
Q3 		$5.01M Buy
+586,505
New +$5.75M 0.02% 591
2014
Q4 		– Sell
-48,587
Closed -$1.58M – 779
2014
Q3 		$1.58M Buy
+48,587
New +$1.65M 0.01% 486

Other funds holding PTEN

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Blackstone Inc
Blackstone Inc New York $25.6B AUM 26.83% 1-Year Est. Return
Fuller & Thaler Asset Management
Fuller & Thaler Asset Management San Mateo, California $29.7B AUM 43.33% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
SG
Sourcerock Group Denver, Colorado $2.48B AUM 72.25% 1-Year Est. Return
AIM
ARGA Investment Management Stamford, Connecticut $3.05B AUM 47.96% 1-Year Est. Return
Macquarie Group
Macquarie Group Sydney, NSW 2000, Australia $16.8B AUM 27.39% 1-Year Est. Return

Robeco Institutional Asset Management's PTEN Position: Q2 2025 in Review

Robeco Institutional Asset Management sold out of Patterson-UTI (PTEN) in Q2 2025, closing a stake of 332,449 shares — an estimated $2.73M sold.

Robeco Institutional Asset Management first reported a position in PTEN in Q3 2014 and held it in 12 quarters. The position peaked at $15.7M in Q4 2019. 361 funds tracked by Wall St. Rank hold PTEN as of Q2 2025.

  • Robeco Institutional Asset Management reported no remaining Patterson-UTI position as of Q2 2025 after selling out during the quarter.
  • Robeco Institutional Asset Management sold 332,449 Patterson-UTI shares in Q2 2025, an estimated $2.73M.
  • Robeco Institutional Asset Management first reported a position in Patterson-UTI in Q3 2014 and held it in 12 quarters.
  • Robeco Institutional Asset Management's Patterson-UTI position peaked at $15.7M in Q4 2019.
  • 361 funds tracked by Wall St. Rank held Patterson-UTI as of Q2 2025.

Based on Robeco Institutional Asset Management's 13F filing for Q2 2025, filed 18 Jul 2025.