Shelby K. Fietz - 27 Feb 2026 Form 4 Insider Report for ProPetro Holding Corp. (PUMP)

Role: Chief Commercial Officer
Signature: /s/ John J. Mitchell, as attorney-in-fact for Shelby K. Fietz
Issuer symbol: PUMP
Transactions as of: 27 Feb 2026
Net transactions value: -$55,737
Form type: 4
Filing time: 03 Mar 2026, 16:14:08 UTC
Previous filing: 03 Feb 2026
Next filing: 05 Mar 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Fietz Shelby Kyle	Chief Commercial Officer	ONE MARIENFELD PLACE, 110 N. MARIENFELD STREET, SUITE 300, MIDLAND	/s/ John J. Mitchell, as attorney-in-fact for Shelby K. Fietz	03 Mar 2026	0002000378

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	PUMP	Common Stock	Options Exercise		+18,868	+9.1%		225,827	28 Feb 2026	Direct	F1, F2
transaction	PUMP	Common Stock	Tax liability	$55,737	-4,595	-2%	$12.13	221,232	28 Feb 2026	Direct	F3

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	PUMP	Restricted Stock Units	Award	$0	+47,743	+24%	$0.000000	245,980	27 Feb 2026	Common Stock	47,743		Direct	F2, F4
transaction	PUMP	Restricted Stock Units	Options Exercise	$0	-18,868	-7.7%	$0.000000	227,112	28 Feb 2026	Common Stock	18,868		Direct	F2, F5

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Reflects shares of common stock of the Issuer ("Common Stock") delivered upon vesting and settlement of previously awarded restricted stock units ("RSUs").
F2	Each RSU represents a contingent right to receive either one share of Common Stock or an amount of cash equal to the fair market value of one share of Common Stock.
F3	Reflects shares of Common Stock withheld to satisfy taxes payable in connection with the vesting and settlement of previously awarded RSUs.
F4	The RSUs will vest in three substantially equal annual installments commencing on February 27, 2027.
F5	On February 28, 2024, the reporting person was granted 56,603 RSUs, vesting in three substantially equal annual installments beginning on the first anniversary of the grant date.