Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 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 that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * Smith Charles Andrew 2. Issuer Name and Ticker or Trading Symbol PATTERSON UTI ENERGY INC [PTEN] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) EVP & Chief Financial Officer (Last) (First) (Middle) 10713 W. SAM HOUSTON PKWY N., SUITE 800 3. Date of Earliest Transaction (Month/Day/Year) 04/30/2026 (Street) HOUSTON, TX 77064 4. If Amendment, Date Original Filed (Month/Day/Year) 6. Individual or Joint/Group Filing (Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 04/30/2026 A 57,500(1) A $ 0 752,755 D Common Stock 05/01/2026 F 14,357(2) D $12.22 738,398 D Common Stock 05/01/2026 M 24,033 A (3) 762,431 D Common Stock 05/01/2026 D 24,033(4) D $10.8 738,398 D

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Cash-Settled Restricted Stock Units

(5)

04/30/2026

A

38,400

(5)

(5)

Common Stock

38,400

(5)

110,500

D

Cash-Settled Restricted Stock Units

(3)

05/01/2026

M

24,033

(3)

(3)

Common Stock

24,033

(3)

86,467

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Smith Charles Andrew 10713 W. SAM HOUSTON PKWY N. SUITE 800 HOUSTON, TX 77064			EVP & Chief Financial Officer

Signatures

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

Explanation of Responses:

*	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).
(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.

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