Brown Brothers Harriman & Co’s Patterson-UTI PTEN Stock Holding History

Brown Brothers Harriman & Co’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
2026 Q1	$704	Sell	65 -652	-91%	-$5.58K	﹤0.01%	1750
2025 Q4	$4.38K	Buy	+717	New	+$4.28K	﹤0.01%	1546
2022 Q4	–	Sell	-446	Closed	-$5K	–	1454
2022 Q3	$5K	Buy	+446	New	+$6.37K	﹤0.01%	1302
2020 Q3	–	Sell	-125	Closed	–	–	1018
2020 Q2	$0	Sell	125 -250	-67%	-$862	﹤0.01%	1153
2020 Q1	$1K	Buy	+375	New	+$2.43K	﹤0.01%	1031
2019 Q1	–	Sell	-188	Closed	-$2K	–	1084
2018 Q4	$2K	Buy	+188	New	+$2.77K	﹤0.01%	857
2018 Q3	–	Sell	-550	Closed	-$10K	–	872
2018 Q2	$10K	Hold	550	–	–	﹤0.01%	665
2018 Q1	$10K	Hold	550	–	–	﹤0.01%	660
2017 Q4	$13K	Buy	+550	New	+$11.4K	﹤0.01%	722

Other funds holding PTEN

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return

Sourcerock Group Denver, Colorado $2.48B AUM 72.25% 1-Year Est. Return

Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

Fuller & Thaler Asset Management San Mateo, California $29.7B AUM 43.33% 1-Year Est. Return

Brown Brothers Harriman & Co's PTEN Position: Q1 2026 in Review

Brown Brothers Harriman & Co reduced its Patterson-UTI (PTEN) stake by 91% in Q1 2026, selling an estimated $5.58K and leaving 65 shares worth $704. The position accounts for ﹤0.01% of the portfolio, ranked #1750.

Brown Brothers Harriman & Co first reported a position in PTEN in Q4 2017 and has held it in 9 quarters since. The position peaked at $13K in Q4 2017. 410 funds tracked by Wall St. Rank hold PTEN as of Q1 2026.

Brown Brothers Harriman & Co held 65 shares of Patterson-UTI worth $704 as of Q1 2026.
Brown Brothers Harriman & Co sold 652 Patterson-UTI shares in Q1 2026, an estimated $5.58K.
Patterson-UTI made up ﹤0.01% of Brown Brothers Harriman & Co's portfolio in Q1 2026, its #1750 holding.
Brown Brothers Harriman & Co first reported a position in Patterson-UTI in Q4 2017 and has held it in 9 quarters since.
Brown Brothers Harriman & Co's Patterson-UTI position peaked at $13K in Q4 2017.
410 funds tracked by Wall St. Rank held Patterson-UTI as of Q1 2026.

Based on Brown Brothers Harriman & Co's 13F filing for Q1 2026, filed 14 May 2026.