Director Anthony James Best receives 28,181 ProPetro (PUMP) shares from RSU vesting

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

ProPetro Holding Corp. director Anthony James Best increased his direct common stock holdings through an RSU vesting event. On May 18, 2026, previously granted 28,181 restricted stock units fully vested and settled into the same number of common shares, with no cash exercise price.

The RSUs were originally granted on May 21, 2025, and were structured to vest in full before the company’s 2026 annual stockholder meeting or by May 21, 2026, whichever occurred first. Following the settlement, Best directly holds 139,120 shares of ProPetro common stock, and the reported RSU grant has been fully settled.

Insider Trade Summary

28,181 shares exercised/converted

Mixed 2 txns

Insider BEST ANTHONY JAMES

Role null

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units	28,181	$0.00	--
Exercise	Common Stock	28,181	$0.00	--

Holdings After Transaction: Restricted Stock Units — 0 shares (Direct, null); Common Stock — 139,120 shares (Direct, null)

Footnotes (1)

Reflects shares of common stock of the Issuer ("Common Stock") delivered upon vesting and settlement of previously awarded restricted stock units ("RSUs"). 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. On May 21 2025, the reporting person was granted 28,181 RSUs, vesting in full upon the earlier to occur of the day immediately preceding the Issuer's annual meeting of stockholders in 2026 and May 21, 2026.

Key Figures

RSUs vested and settled: 28,181 units/shares Shares held after transaction: 139,120 shares RSU grant date: May 21, 2025 +2 more

5 metrics

RSUs vested and settled 28,181 units/shares Restricted stock units vesting into common stock on May 18, 2026

Shares held after transaction 139,120 shares Direct ProPetro common stock holdings following RSU settlement

RSU grant date May 21, 2025 Original grant of 28,181 restricted stock units

RSU vesting condition deadline May 21, 2026 Latest date for full vesting or day before 2026 annual meeting

Exercise/settlement price $0.00 per unit RSUs settled with no cash exercise price

Key Terms

Restricted Stock Units, RSUs, contingent right, annual meeting of stockholders

4 terms

Restricted Stock Units financial

"Reflects shares of common stock of the Issuer ("Common Stock") delivered upon vesting and settlement of previously awarded restricted stock units ("RSUs")."

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

RSUs financial

"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."

RSUs, or restricted stock units, are a form of company shares given to employees as part of their compensation. They are typically awarded with certain restrictions, such as a waiting period before they can be fully owned or sold, similar to earning a gift that becomes fully yours over time. For investors, RSUs can impact a company's stock offerings and reflect how much the company relies on stock-based incentives to attract and retain talent.

contingent right financial

"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."

annual meeting of stockholders financial

"On May 21 2025, the reporting person was granted 28,181 RSUs, vesting in full upon the earlier to occur of the day immediately preceding the Issuer's annual meeting of stockholders in 2026 and May 21, 2026."

Form 4 Insider Transactions: What Each Field Means →

05/19/2026 - 05:58 PM

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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^*

BEST ANTHONY JAMES

(Last)

(First)

(Middle)

ONE MARIENFELD PLACE

110 N. MARIENFELD STREET, SUITE 300

(Street)

MIDLAND

TEXAS

79701

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
ProPetro Holding Corp. [ PUMP ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	10% Owner
	Officer (give title below)	Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/18/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	05/18/2026		M		28,181⁽¹⁾	A	⁽²⁾	139,120	D

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 Securities Underlying Derivative Security (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: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Restricted Stock Units	⁽²⁾	05/18/2026		M			28,181	⁽³⁾	⁽³⁾	Common Stock	28,181	$0	0	D

Explanation of Responses:

1. Reflects shares of common stock of the Issuer ("Common Stock") delivered upon vesting and settlement of previously awarded restricted stock units ("RSUs").

2. 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.

3. On May 21 2025, the reporting person was granted 28,181 RSUs, vesting in full upon the earlier to occur of the day immediately preceding the Issuer's annual meeting of stockholders in 2026 and May 21, 2026.

Remarks:

	/s/ John J. Mitchell, as attorney-in-fact for Anthony James Best	05/19/2026
	** Signature of Reporting Person	Date
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.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did ProPetro (PUMP) director Anthony James Best report?

Anthony James Best reported vesting and settlement of 28,181 restricted stock units into the same number of ProPetro common shares. This was an equity compensation event, not an open-market purchase or sale, and increased his direct common stock holdings.

How many ProPetro (PUMP) shares did Anthony James Best acquire in this Form 4?

Anthony James Best acquired 28,181 ProPetro common shares through settlement of restricted stock units. Each RSU represented the right to receive one share or equivalent cash value, and this filing shows delivery of shares rather than a cash payout.

What is Anthony James Best’s ProPetro (PUMP) shareholding after this RSU vesting?

After the RSU vesting and share delivery, Anthony James Best directly holds 139,120 shares of ProPetro common stock. This reflects his updated ownership position following full settlement of the 28,181 restricted stock units reported in the filing.

When were the ProPetro (PUMP) restricted stock units originally granted to Anthony James Best?

The 28,181 restricted stock units were granted on May 21, 2025. They were designed to vest in full before the 2026 annual stockholder meeting or by May 21, 2026, providing time-based equity compensation linked to board service.

Did Anthony James Best buy or sell ProPetro (PUMP) shares on the market in this Form 4?

This Form 4 does not show any open-market buying or selling by Anthony James Best. It reports only the vesting and settlement of 28,181 restricted stock units into common shares as part of his equity compensation package.