As of November 6, 2026, 3 holders' latest Schedule 13D or 13G filings report owning 5% or more of Patterson-UTI Energy, Inc. The largest reported stake is Vanguard Portfolio Management's, at 7.16%. 6 filings are on record since August 8, 2025 (Schedule 13G, April 29, 2026).
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Key facts
- · Reporting person: BEP Diamond Topco L.P. · Sole voting: 2,102,773 · Shared voting: 0 · Sole dispositive: 0 · Shared dispositive: 2,102,773 · SCHEDULE 13G/A, 2026-05-01
- · Reporting person: Vanguard Capital Management · Sole voting: 2,638,211 · Shared voting: 0 · Sole dispositive: 19,259,019 · Shared dispositive: 0 · SCHEDULE 13G, 2026-04-30
- · Reporting person: Vanguard Portfolio Management · Sole voting: 133,438 · Shared voting: 0 · Sole dispositive: 27,192,996 · Shared dispositive: 0 · SCHEDULE 13G, 2026-04-29
- · Reporting person: Dimensional Fund Advisors LP · Sole voting: 20,807,923 · Shared voting: 0 · Sole dispositive: 21,211,576 · Shared dispositive: 0 · SCHEDULE 13G, 2026-04-09
- · Holder: The Vanguard Group · Percent: 0% · SCHEDULE 13G/A
Patterson-UTI Energy, Inc. has 6 Schedule 13D or 13G filings on record since 2025-08-08. 3 holders' latest filing reports 5% or more of common stock, $0.01 par value. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| Vanguard Portfolio Management | 7.16% | 27,192,996 | SCHEDULE 13G, 2026-04-29 | 2026-03-31 |
| Dimensional Fund Advisors LP | 5.6% | 21,211,576 | SCHEDULE 13G, 2026-04-09 | 2026-03-31 |
| Vanguard Capital Management | 5.07% | 19,259,019 | SCHEDULE 13G, 2026-04-30 | 2026-03-31 |
| BEP Diamond Aggregator L.P. | 1.9% | 7,139,403 | SCHEDULE 13G/A, 2026-05-01 | 2026-03-31 |
| The Vanguard Group | 0% | 0 | SCHEDULE 13G/A, 2026-03-27 | 2026-03-13 |
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More on Patterson-UTI Energy, Inc. and the records around it.
Patterson-UTI Energy, Inc. elsewhere on the record
Companies that share a holder
- Dimensional Fund Advisors LP also filed stake reports on 366 other companies: Acadia Healthcare Co Inc (Oct 2026), ADT Inc (Oct 2026), AGCO Corp (Oct 2026)
- Vanguard Portfolio Management also filed stake reports on 941 other companies: Newmark Group Inc (Nov 2026), A10 Networks Inc (Oct 2026), ADT Inc (Oct 2026)
- Vanguard Capital Management also filed stake reports on 1495 other companies: A10 Networks Inc (Oct 2026), Altisource Portfolio Solutions SA (Oct 2026), Alto Neuroscience Inc (Oct 2026)
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| Vanguard Portfolio Management | 133,438 | 0 | 27,192,996 | 0 | SCHEDULE 13G, 2026-04-29 |
| Dimensional Fund Advisors LP | 20,807,923 | 0 | 21,211,576 | 0 | SCHEDULE 13G, 2026-04-09 |
| Vanguard Capital Management | 2,638,211 | 0 | 19,259,019 | 0 | SCHEDULE 13G, 2026-04-30 |
| BEP Diamond Topco L.P. | 2,102,773 | 0 | 0 | 2,102,773 | SCHEDULE 13G/A, 2026-05-01 |
| BEP Diamond Topco LLC | 2,102,773 | 0 | 0 | 2,102,773 | SCHEDULE 13G/A, 2026-05-01 |
| BEP Diamond Aggregator L.P. | 7,139,403 | 0 | 5,036,630 | 2,102,773 | SCHEDULE 13G/A, 2026-05-01 |
| BCP VII/BEP II Holdings Manager L.L.C. | 7,139,403 | 0 | 5,036,630 | 2,102,773 | SCHEDULE 13G/A, 2026-05-01 |
| Blackstone Energy Management Associates II L.L.C. | 0 | 7,139,403 | 0 | 7,139,403 | SCHEDULE 13G/A, 2026-05-01 |
| Blackstone Management Associates VII L.L.C. | 0 | 7,139,403 | 0 | 7,139,403 | SCHEDULE 13G/A, 2026-05-01 |
| Bma Vii L.L.C. | 0 | 7,139,403 | 0 | 7,139,403 | SCHEDULE 13G/A, 2026-05-01 |
| Blackstone EMA II L.L.C. | 0 | 7,139,403 | 0 | 7,139,403 | SCHEDULE 13G/A, 2026-05-01 |
| Blackstone Holdings III L.P. | 7,139,403 | 0 | 5,036,630 | 2,102,773 | SCHEDULE 13G/A, 2026-05-01 |
| Blackstone Holdings III GP L.P. | 7,139,403 | 0 | 5,036,630 | 2,102,773 | SCHEDULE 13G/A, 2026-05-01 |
| Blackstone Holdings III GP Management L.L.C. | 7,139,403 | 0 | 5,036,630 | 2,102,773 | SCHEDULE 13G/A, 2026-05-01 |
| Blackstone Inc. | 7,139,403 | 0 | 5,036,630 | 2,102,773 | SCHEDULE 13G/A, 2026-05-01 |
| Blackstone Group Management L.L.C. | 7,139,403 | 0 | 5,036,630 | 2,102,773 | SCHEDULE 13G/A, 2026-05-01 |
| Stephen A. Schwarzman | 7,139,403 | 0 | 5,036,630 | 2,102,773 | SCHEDULE 13G/A, 2026-05-01 |
The latest filing identifies Patterson-UTI Energy, Inc. by CUSIP 703481101 and gives its principal executive office as 10713 WEST SAM HOUSTON PARKWAY NORTH, SUITE 800, HOUSTO, TX 77064 (SCHEDULE 13G/A, 2026-05-01).
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-08-08 | BEP Diamond Aggregator L.P. | 7.3% | SCHEDULE 13G/A |
| 2026-03-27 | The Vanguard Group | 0% | SCHEDULE 13G/A |
| 2026-04-09 | Dimensional Fund Advisors LP | 5.6% | SCHEDULE 13G |
| 2026-04-29 | Vanguard Portfolio Management | 7.16% | SCHEDULE 13G |
| 2026-04-30 | Vanguard Capital Management | 5.07% | SCHEDULE 13G |
| 2026-05-01 | BEP Diamond Aggregator L.P. | 1.9% | SCHEDULE 13G/A |
Questions about who owns Patterson-UTI Energy, Inc.
Who owns Patterson-UTI Energy, Inc.?
On this page, 3 holders' latest ownership filings report 5% or more of Patterson-UTI Energy, Inc.: Vanguard Portfolio Management (7.16%, Schedule 13G, filed 2026-04-29), Dimensional Fund Advisors LP (5.6%, Schedule 13G, filed 2026-04-09) and Vanguard Capital Management (5.07%, Schedule 13G, filed 2026-04-30).
Who are the largest shareholders of Patterson-UTI Energy, Inc.?
By the share each holder's latest filing reports, the largest holders of Patterson-UTI Energy, Inc. on this page are Vanguard Portfolio Management (7.16%), Dimensional Fund Advisors LP (5.6%) and Vanguard Capital Management (5.07%).
When did Vanguard Portfolio Management buy into Patterson-UTI Energy, Inc.?
The filings give report dates, not purchase dates. The earliest filing from Vanguard Portfolio Management on this page is the Schedule 13G, filed 2026-04-29, reporting 7.16%.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 6 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.