Viking Fund Management’s Patterson-UTI PTEN Stock Holding History

Viking Fund 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 Q4	–	Sell	-100,000	Closed	-$518K	–	143
2025 Q3	$518K	Hold	100,000	–	–	0.06%	122
2025 Q2	$593K	Hold	100,000	–	–	0.08%	120
2025 Q1	$822K	Sell	100,000 -80,000	-44%	-$671K	0.12%	112
2024 Q4	$1.49M	Buy	180,000 +70,000	+64%	+$562K	0.23%	98
2024 Q3	$842K	Buy	110,000 +10,000	+10%	+$92.1K	0.14%	105
2024 Q2	$1.04M	Hold	100,000	–	–	0.19%	100
2024 Q1	$1.19M	Sell	100,000 -260,000	-72%	-$2.89M	0.22%	100
2023 Q4	$3.89M	Sell	360,000 -46,080	-11%	-$560K	0.76%	47
2023 Q3	$5.62M	Buy	+406,080	New	+$5.94M	1.13%	32
2023 Q2	–	Sell	-150,000	Closed	-$1.75M	–	126
2023 Q1	$1.75M	Sell	150,000 -30,000	-17%	-$438K	0.34%	89
2022 Q4	$3.03M	Sell	180,000 -20,000	-10%	-$330K	0.6%	63
2022 Q3	$2.34M	Buy	200,000 +70,000	+54%	+$1M	0.55%	68
2022 Q2	$2.05M	Hold	130,000	–	–	0.47%	82
2022 Q1	$2.01M	Buy	+130,000	New	+$1.64M	0.46%	79
2019 Q1	–	Sell	-250,000	Closed	-$2.59M	–	120
2018 Q4	$2.59M	Sell	250,000 -170,000	-40%	-$2.51M	0.72%	48
2018 Q3	$7.19M	Hold	420,000	–	–	1.47%	20
2018 Q2	$7.56M	Hold	420,000	–	–	1.45%	21
2018 Q1	$7.35M	Buy	420,000 +160,000	+62%	+$3.34M	1.39%	26
2017 Q4	$5.98M	Hold	260,000	–	–	0.98%	35
2017 Q3	$5.44M	Sell	260,000 -180,000	-41%	-$3.32M	0.87%	35
2017 Q2	$8.88M	Hold	440,000	–	–	1.36%	26
2017 Q1	$10.7M	Buy	440,000 +20,000	+5%	+$539K	1.43%	28
2016 Q4	$11.3M	Buy	420,000 +60,000	+17%	+$1.48M	1.43%	32
2016 Q3	$8.05M	Buy	360,000 +50,000	+16%	+$1M	1.32%	34
2016 Q2	$6.61M	Sell	310,000 -120,000	-28%	-$2.26M	1.15%	35
2016 Q1	$7.58M	Sell	430,000 -20,000	-4%	-$298K	1.45%	35
2015 Q4	$6.79M	Sell	450,000 -90,000	-17%	-$1.38M	1.34%	38
2015 Q3	$7.1M	Sell	540,000 -180,000	-25%	-$2.85M	1.24%	29
2015 Q2	$13.5M	Buy	720,000 +360,000	+100%	+$7.47M	1.8%	22
2015 Q1	$6.76M	Buy	+360,000	New	+$6.17M	0.88%	39
2014 Q4	–	Sell	-637,000	Closed	-$20.7M	–	56
2014 Q3	$20.7M	Buy	637,000 +307,000	+93%	+$10.4M	2.3%	15
2014 Q2	$11.5M	Buy	330,000 +245,000	+288%	+$8.04M	1.3%	36
2014 Q1	$2.69M	Buy	+85,000	New	+$2.36M	0.38%	53

Other funds holding PTEN

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

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

Blackstone Inc New York $25.6B AUM 26.83% 1-Year Est. Return

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

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

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

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

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

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Viking Fund Management's PTEN Position: Q4 2025 in Review

Viking Fund Management sold out of Patterson-UTI (PTEN) in Q4 2025, closing a stake of 100,000 shares — an estimated $518K sold.

Viking Fund Management first reported a position in PTEN in Q1 2014 and held it in 33 quarters. The position peaked at $20.7M in Q3 2014. 372 funds tracked by Wall St. Rank hold PTEN as of Q4 2025.

Viking Fund Management reported no remaining Patterson-UTI position as of Q4 2025 after selling out during the quarter.
Viking Fund Management sold 100,000 Patterson-UTI shares in Q4 2025, an estimated $518K.
Viking Fund Management first reported a position in Patterson-UTI in Q1 2014 and held it in 33 quarters.
Viking Fund Management's Patterson-UTI position peaked at $20.7M in Q3 2014.
372 funds tracked by Wall St. Rank held Patterson-UTI as of Q4 2025.

Based on Viking Fund Management's 13F filing for Q4 2025, filed 12 Jan 2026.