Patterson-UTI Energy, Inc.
US ˙ NasdaqGS ˙ US7034811015

SecurityPTEN / Patterson-UTI Energy, Inc.
InstitutionWhittier Trust Co
Latest Disclosed Ownership2,218 shares
Latest Disclosed Value $ 23,489
Whittier Trust Co ownership in PTEN / Patterson-UTI Energy, Inc.

On April 28, 2026 - Whittier Trust Co filed a 13F-HR form disclosing ownership of 2,218 shares of Patterson-UTI Energy, Inc. (US:PTEN) valued at $24,021 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 2,218 shares of Patterson-UTI Energy, Inc.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $26,638 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-04-28 2026-03-31 13F PATTERSON PHARM common 703481101 2,218 0 0.00 23 64.29 0.0001
2026-01-26 2025-12-31 13F PATTERSON PHARM common 703481101 2,218 0 0.00 15 16.67 0.0002
2025-10-31 2025-09-30 13F PATTERSON-UTI ENERGY common 703481101 2,218 0 0.00 12 -7.69 0.0001
2025-07-30 2025-06-30 13F PATTERSON UTI ENERGY INC COM US SMALL-CAP EQUITIES 703481101 2,218 0 0.00 13 -27.78 0.0002
2025-05-02 2025-03-31 13F PATTERSON UTI ENERGY INC COM US SMALL-CAP EQUITIES 703481101 2,218 0 0.00 18 0.00 0.0003
2025-02-11 2024-12-31 13F PATTERSON UTI ENERGY INC COM US SMALL-CAP EQUITIES 703481101 2,218 -35 -1.55 18 5.88 0.0002
2024-10-21 2024-09-30 13F PATTERSON UTI ENERGY INC COM US SMALL-CAP EQUITIES 703481101 2,253 0 0.00 17 -26.09 0.0002
2024-07-29 2024-06-30 13F PATTERSON UTI ENERGY INC COM US SMALL-CAP EQUITIES 703481101 2,253 0 0.00 23 -11.54 0.0003
2024-05-02 2024-03-31 13F PATTERSON UTI ENERGY INC COM US SMALL-CAP EQUITIES 703481101 2,253 -25 -1.10 27 8.33 0.0004
2024-01-11 2023-12-31 13F PATTERSON UTI ENERGY INC COM US SMALL-CAP EQUITIES 703481101 2,278 -51 -2.19 25 -25.00 0.0004
2023-10-27 2023-09-30 13F PATTERSON UTI ENERGY INC COM US SMALL-CAP EQUITIES 703481101 2,329 51 2.24 32 18.52 0.0006
2023-07-24 2023-06-30 13F PATTERSON UTI ENERGY INC COM US SMALL-CAP EQUITIES 703481101 2,278 0 0.00 27 3.85 0.0005
2023-04-21 2023-03-31 13F PATTERSON UTI ENERGY INC COM US SMALL-CAP EQUITIES 703481101 2,278 0 0.00 27 -31.58 0.0005
2023-01-25 2022-12-31 13F PATTERSON UTI ENERGY INC COM US SMALL-CAP EQUITIES 703481101 2,278 0 0.00 38 40.74 0.0007
2022-10-21 2022-09-30 13F PATTERSON UTI ENERGY INC COM US SMALL-CAP EQUITIES 703481101 2,278 0 0.00 27 -25.00 0.0006
2022-07-28 2022-06-30 13F PATTERSON UTI ENERGY INC COM US SMALL-CAP EQUITIES 703481101 2,278 0 0.00 36 2.86 0.0007
2022-04-29 2022-03-31 13F PATTERSON UTI ENERGY INC COM US SMALL-CAP EQUITIES 703481101 2,278 0 0.00 35 84.21 0.0006
2022-01-19 2021-12-31 13F PATTERSON UTI ENERGY INC COM US SMALL-CAP EQUITIES 703481101 2,278 2,218 3,696.67 19 1,800.00 0.0003
2021-11-01 2021-09-30 13F PATTERSON UTI ENERGY INC COM US SMALL-CAP EQUITIES 703481101 60 0 0.00 1 0.00 0.0000
2021-07-29 2021-06-30 13F PATTERSON UTI ENERGY INC COM US SMALL-CAP EQUITIES 703481101 60 0 0.00 1 0.0000
2021-04-26 2021-03-31 13F PATTERSON UTI ENERGY INC COM US SMALL-CAP EQUITIES 703481101 60 0 0.00 0 -100.00 0.0000
2021-01-29 2020-12-31 13F PATTERSON UTI ENERGY INC COM US SMALL-CAP EQUITIES 703481101 60 0 0.00 0 0.0000
2020-10-30 2020-09-30 13F PATTERSON UTI ENERGY INC COM US SMALL-CAP EQUITIES 703481101 60 0 0.00 0 0.0000
2020-07-10 2020-06-30 13F PATTERSON UTI ENERGY INC COM US SMALL-CAP EQUITIES 703481101 60 0 0.00 0 0.0000
2020-04-27 2020-03-31 13F PATTERSON UTI ENERGY INC COM US SMALL-CAP EQUITIES 703481101 60 0 0.00 0 -100.00
2020-01-31 2019-12-31 13F PATTERSON UTI ENERGY INC COM US SMALL-CAP EQUITIES 703481101 60 0 0.00 1 0.00 0.0000
2019-10-18 2019-09-30 13F PATTERSON UTI ENERGY INC COM US SMALL-CAP EQUITIES 703481101 60 0 0.00 1 0.00 0.0000
2019-07-23 2019-06-30 13F PATTERSON UTI ENERGY INC COM US SMALL-CAP EQUITIES 703481101 60 0 0.00 1 0.00 0.0000
2019-04-29 2019-03-31 13F PATTERSON UTI ENERGY INC COM US SMALL-CAP EQUITIES 703481101 60 0 0.00 1 0.00 0.0000
2019-02-07 2018-12-31 13F PATTERSON UTI ENERGY INC COM US SMALL-CAP EQUITIES 703481101 60 0 0.00 1 0.00 0.0000
2018-10-23 2018-09-30 13F PATTERSON UTI ENERGY INC COM US SMALL-CAP EQUITIES 703481101 60 0 0.00 1 0.00 0.0000
2018-07-27 2018-06-30 13F/A-1 PATTERSON UTI ENERGY INC COM US SMALL-CAP EQUITIES 703481101 60 0 0.00 1 0.00 0.0000
2018-07-20 2018-06-30 13F PATTERSON UTI ENERGY INC COM US SMALL AND MID-CAP EQUITIES 703481101 200 140 7
2018-05-01 2018-03-31 13F PATTERSON UTI ENERGY INC COM US SMALL-CAP EQUITIES 703481101 60 0 0.00 1 0.00 0.0000
2018-02-07 2017-12-31 13F PATTERSON UTI ENERGY INC COM US SMALL-CAP EQUITIES 703481101 60 0 0.00 1 0.00 0.0000
2017-10-23 2017-09-30 13F PATTERSON UTI ENERGY INC COM US SMALL-CAP EQUITIES 703481101 60 0 0.00 1 0.00 0.0000
2017-07-20 2017-06-30 13F PATTERSON UTI ENERGY INC COM US SMALL-CAP EQUITIES 703481101 60 0 0.00 1 0.00 0.0000
2017-04-26 2017-03-31 13F PATTERSON UTI ENERGY US SMALL AND MID-CAP EQUITIES 703481101 60 0 0.00 1 -50.00 0.0000
2017-01-18 2016-12-31 13F PATTERSON UTI ENERGY INC COM US SMALL AND MID-CAP EQUITIES 703481101 60 0 0.00 2 100.00 0.0001
2016-11-10 2016-09-30 13F PATTERSON UTI ENERGY INC COM US SMALL AND MID-CAP EQUITIES 703481101 60 0 0.00 1 0.00 0.0000
2016-07-28 2016-06-30 13F PATTERSON UTI ENERGY INC COM US SMALL AND MID-CAP EQUITIES 703481101 60 22 57.89 1 0.00 0.0000
2016-04-28 2016-03-31 13F SEVENTY SEVEN ENERGY INC COM US SMALL AND MID-CAP EQUITIES 818097107 38 -14 -26.92 0 0.0000
2016-04-28 2016-03-31 13F PATTERSON UTI ENERGY INC COM US SMALL AND MID-CAP EQUITIES 703481101 60 0 1 0.0000
2016-02-10 2015-12-31 13F SEVENTY SEVEN ENERGY INC COM US SMALL AND MID-CAP EQUITIES 818097107 52 21 67.74 0 0.0000
2016-02-10 2015-12-31 13F PATTERSON UTI ENERGY INC COM US SMALL AND MID-CAP EQUITIES 703481101 60 0 1 0.0000
2015-11-12 2015-09-30 13F SEVENTY SEVEN ENERGY INC COM US SMALL AND MID-CAP EQUITIES 818097107 31 0 0.00 0 0.0000
2015-11-12 2015-09-30 13F PATTERSON UTI ENERGY INC COM US SMALL AND MID-CAP EQUITIES 703481101 60 -140 1 0.0000
2015-08-13 2015-06-30 13F SEVENTY SEVEN ENERGY INC COM US SMALL AND MID-CAP EQUITIES 818097107 31 0 0.00 0 0.0000
2015-08-13 2015-06-30 13F PATTERSON UTI ENERGY INC COM US SMALL AND MID-CAP EQUITIES 703481101 200 0 4 0.0002
2015-05-05 2015-03-31 13F SEVENTY SEVEN ENERGY INC COM US SMALL AND MID-CAP EQUITIES 818097107 31 31 0 0.0000
2015-05-05 2015-03-31 13F PATTERSON UTI ENERGY INC COM US SMALL AND MID-CAP EQUITIES 703481101 200 200 4 0.0002
2015-02-04 2014-12-31 13F PATTERSON UTI ENERGY INC COM US SMALL AND MID-CAP EQUITIES 703481101 0 -31 -100.00 0 -100.00
2014-11-07 2014-09-30 13F SEVENTY SEVEN ENERGY INC COM US SMALL AND MID-CAP EQUITIES 818097107 31 -169 -84.50 1 -85.71 0.0000
2014-11-07 2014-09-30 13F PATTERSON UTI ENERGY INC COM US SMALL AND MID-CAP EQUITIES 703481101 200 0 7 0.0003
2014-08-04 2014-06-30 13F PATTERSON UTI ENERGY INC COM US SMALL AND MID-CAP EQUITIES 703481101 200 0 0.00 7 16.67 0.0003
2014-05-01 2014-03-31 13F PATTERSON UTI ENERGY INC COM US SMALL AND MID-CAP EQUITIES 703481101 200 -420 -67.74 6 -62.50 0.0003
2014-02-05 2013-12-31 13F PATTERSON UTI ENERGY INC COM US SMALL AND MID-CAP EQUITIES 703481101 620 0 0.00 16 23.08 0.0008
2013-11-18 2013-09-30 13F PATTERSON UTI ENERGY COM 703481101 620 -5,895 -90.48 13 -45.83 0.0007
2013-08-14 2013-06-30 13F SOUTHERN CONN BANCORP COM 84264A102 6,515 6,515 24 0.0013
2013-08-14 2013-06-30 13F PATTERSON UTI ENERGY COM 703481101 620 0 12 0.0007
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.