# EDGAR Filing Document

**Accession Number:** 0000889900
**File Stem:** 0001453799-26-000001
**Filing Date:** 2026-5
**Character Count:** 7579
**Document Hash:** a939068807ed016ef1d57ac2d13ff69b
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001453799-26-000001.hdr.sgml**: 20260504

**ACCESSION NUMBER**: 0001453799-26-000001

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260430

**FILED AS OF DATE**: 20260504

**DATE AS OF CHANGE**: 20260504

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Smith Charles Andrew
- **CENTRAL INDEX KEY:** 0001453799

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-39270
- **FILM NUMBER:** 26939833

**MAIL ADDRESS:**
- **STREET 1:** 13627 COMELY LANE
- **CITY:** HOUSTON
- **STATE:** TX
- **ZIP:** 77079
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** PATTERSON UTI ENERGY INC
- **CENTRAL INDEX KEY:** 0000889900
- **STANDARD INDUSTRIAL CLASSIFICATION:** DRILLING OIL & GAS WELLS [1381]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 752504748
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 10713 WEST SAM HOUSTON PARKWAY NORTH
- **STREET 2:** SUITE 800
- **CITY:** HOUSTON
- **STATE:** TX
- **ZIP:** 77064
- **BUSINESS PHONE:** 2817657100

**MAIL ADDRESS:**
- **STREET 1:** 10713 WEST SAM HOUSTON PARKWAY NORTH
- **STREET 2:** SUITE 800
- **CITY:** HOUSTON
- **STATE:** TX
- **ZIP:** 77064

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** PATTERSON ENERGY INC
- **DATE OF NAME CHANGE:** 19940228

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

[ ] Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Smith Charles Andrew<br><sub>(Last) (First) (Middle)</sub><br>10713 W. SAM HOUSTON PKWY N.<br>SUITE 800<br><sub>(Street)</sub><br>HOUSTON, TX 77064<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2026-04-30 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [ ] 10% Owner<br>[X] Officer (give title below) [ ] Other (specify below)<br>_EVP & Chief Financial Officer_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>PATTERSON UTI ENERGY INC [ PTEN ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Common Stock | 2026-04-30 |  | A |  | 57500<sup>(1)</sup> | A | $0 | 752755 | D |  |
| Common Stock | 2026-05-01 |  | F |  | 14357<sup>(2)</sup> | D | $12.22 | 738398 | D |  |
| Common Stock | 2026-05-01 |  | M |  | 24033 | A | <sup>(3)</sup> | 762431 | D |  |
| Common Stock | 2026-05-01 |  | D |  | 24033<sup>(4)</sup> | D | $10.80 | 738398 | D |  |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| Cash-Settled Restricted Stock Units | <sup>(5)</sup> | 2026-04-30 |  | A |  | 38400 |  | <sup>(5)</sup> | <sup>(5)</sup> | Common Stock | 38400 | <sup>(5)</sup> | 110500 | D |  |
| Cash-Settled Restricted Stock Units | <sup>(3)</sup> | 2026-05-01 |  | M |  |  | 24033 | <sup>(3)</sup> | <sup>(3)</sup> | Common Stock | 24033 | <sup>(3)</sup> | 86467 | D |  |

---

### Footnotes:

(1) Restricted stock units that convert into shares of the Issuer's common stock, par value $0.01 per share ("Common Stock"), on a one-for-one basis. One-third of the restricted stock units vests on each of April 30, 2027, April 30, 2028 and April 30, 2029.

(2) Shares disposed to pay applicable withholding taxes on Restricted Stock Units converted into Common Stock on May 1, 2026.

(3) Reflects the settlement of cash-settled restricted stock units that vested on May 1, 2026.

(4) No shares were actually issued, disposed or sold. Under applicable SEC guidance, cash settlement of restricted stock units is deemed to involve the conversion of the cash-settled restricted stock units into the underlying common stock and the simultaneous disposition of the common stock to the Company for cash. Accordingly, Table 1 uses Transaction Code D to report the cash-settled restricted stock unit settlement.

(5) Each cash-settled restricted stock unit represents a contingent right to receive cash in an amount equal to the value of one share of Common Stock on the applicable vesting date. One-third of the cash-settled restricted stock units vests on each of April 30, 2027, April 30, 2028 and April 30, 2029.

**Signature:** By Forrest Robinson pursuant to a Limited Power of Attorney filed with the SEC on 09/08/2017 /s/Forrest Robinson  
**Date:** 2026-05-04

### Remarks:

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**