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

SecurityPTEN / Patterson-UTI Energy, Inc.
InstitutionFirst Manhattan Co
Latest Disclosed Ownership14,041 shares
Latest Disclosed Value $ 152,064
First Manhattan Co ownership in PTEN / Patterson-UTI Energy, Inc.

On May 15, 2026 - First Manhattan Co filed a 13F-HR form disclosing ownership of 14,041 shares of Patterson-UTI Energy, Inc. (US:PTEN) valued at $152,064 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 14,041 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 $168,632 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)
2026-05-15 2026-03-31 13F PATTERSON-UTI ENERGY COM 703481101 14,041 0 0.00 152 78.82 0.0004
2026-02-17 2025-12-31 13F PATTERSON-UTI ENERGY COM 703481101 14,041 0 0.00 86 18.06 0.0002
2025-11-14 2025-09-30 13F PATTERSON-UTI ENERGY COM 703481101 14,041 0 0.00 73 -13.25 0.0002
2025-08-14 2025-06-30 13F PATTERSON-UTI ENERGY COM 703481101 14,041 3,600 34.48 83 -2.35 0.0002
2025-05-15 2025-03-31 13F PATTERSON-UTI ENERGY COM 703481101 10,441 10,441 86 0.0003
2017-10-25 2017-09-30 13F PATTERSON UTI ENERGY COMMON 703481101 0 -527 -100.00 0 -100.00
2017-08-10 2017-06-30 13F/A-2 PATTERSON UTI ENERGY COMMON 703481101 527 0 0.00 10 -16.67 0.0001
2017-08-01 2017-06-30 13F/A-1 PATTERSON UTI ENERGY COMMON 703481101 527 0 10
2017-07-28 2017-06-30 13F PATTERSON UTI ENERGY COMMON 703481101 527 0 10
2017-04-25 2017-03-31 13F/A-1 PATTERSON UTI ENERGY COMMON 703481101 527 527 12 0.0001
2016-07-14 2016-06-30 13F SEVENTY SEVEN ENERGY COMMON 818097107 0 -5 -100.00 0 0.0000
2016-04-22 2016-03-31 13F SEVENTY SEVEN ENERGY COMMON 818097107 5 0 0.00 0 0.0000
2016-01-20 2015-12-31 13F SEVENTY SEVEN ENERGY COMMON 818097107 5 0 0.00 0 0.0000
2015-10-26 2015-09-30 13F SEVENTY SEVEN ENERGY COMMON 818097107 5 0 0.00 0 0.0000
2015-07-17 2015-06-30 13F SEVENTY SEVEN ENERGY COMMON 818097107 5 -642 -99.23 0 -100.00
2015-04-30 2015-03-31 13F SEVENTY SEVEN ENERGY COMMON 818097107 647 0 0.00 2 -33.33 0.0000
2015-01-20 2014-12-31 13F SEVENTY SEVEN ENERGY COMMON 818097107 647 0 0.00 3 -80.00 0.0000
2014-10-23 2014-09-30 13F SEVENTY SEVEN ENERGY COMMON 818097107 647 647 15 0.0001
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.