Nine Energy (NINE) awards Ann G. Fox 331,111 restricted stock units

Rhea-AI Filing Summary

Fox Ann G reported acquisition or exercise transactions in this Form 4 filing.

Nine Energy Service, Inc. reported that director and officer Ann G. Fox received an equity award of 331,111 shares of Common Stock on May 18, 2026. The award is in the form of time-based restricted stock units granted at $0.00 per share, reflecting compensation rather than a market purchase.

The restricted stock units will vest in three equal installments, beginning on the first anniversary of the applicable vesting commencement date, if Fox remains employed through each vesting date. Following this grant, her directly held Common Stock position reported in this filing is 331,111 shares, indicating this award establishes her disclosed ownership level here.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Fox Ann G

Role See Remarks

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	331,111	$0.00	--

Holdings After Transaction: Common Stock — 331,111 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

RSU grant size: 331,111 shares Grant price: $0.00 per share Post-grant holdings: 331,111 shares +1 more

4 metrics

RSU grant size 331,111 shares Time-based restricted stock units granted May 18, 2026

Grant price $0.00 per share Compensation-related equity award, not market purchase

Post-grant holdings 331,111 shares Total Common Stock directly held after transaction

Vesting structure Three equal installments RSUs vest annually starting first anniversary of vesting commencement

Key Terms

time-based restricted stock units, vesting commencement date, continued employment, Common Stock

4 terms

time-based restricted stock units financial

"Represents time-based restricted stock units that will vest in three equal installments"

Time-based restricted stock units are a form of employee compensation where individuals are granted company shares that are earned over a set period, often as a reward for staying with the company. These shares typically become fully owned and transferable only after passing specific time milestones, encouraging long-term commitment. For investors, they highlight a company's focus on employee retention and can influence future stock supply and company stability.

vesting commencement date financial

"beginning on the first anniversary of the applicable vesting commencement date"

The vesting commencement date is the starting point when an employee begins earning ownership rights to their promised benefits, such as stock options or retirement contributions. Think of it like the day a savings account is opened—only after this date do the benefits start to grow and become fully available over time. It matters to investors because it marks when the clock begins ticking toward full ownership, affecting the timing and value of these benefits.

continued employment financial

"subject to the Reporting Person's continued employment through each applicable vesting date"

Continued employment means that an individual remains in their current job without interruption. For investors, it signals stability and ongoing work that can affect company performance and future prospects. Like a steady heartbeat for a business, sustained employment helps ensure consistent operations and financial health.

Common Stock financial

"security_title: Common Stock"

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

Form 4 Insider Transactions: What Each Field Means →

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^*

Fox Ann G

(Last) (First) (Middle)

2001 KIRBY DRIVE, SUITE 200

(Street)

HOUSTON TEXAS 77019

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Nine Energy Service, Inc. [ NINE ]

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

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

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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	05/18/2026		A		331,111(1)	A	$0.00	331,111	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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents time-based restricted stock units that will vest in three equal installments beginning on the first anniversary of the applicable vesting commencement date, subject to the Reporting Person's continued employment through each applicable vesting date.

Remarks:

President, Chief Executive Officer and Director. The Form 4 filed on behalf of the Reporting Person on 3/6/2026 inadvertently included a check box mark indicating the Reporting Person was no longer subject to Section 16, which was an error.

	/s/ Ann G. Fox	05/20/2026
	** 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)

FAQ

What insider transaction did Nine Energy Service (NINE) report for Ann G. Fox?

Nine Energy Service reported that Ann G. Fox received an equity award of 331,111 shares of Common Stock. The award is structured as time-based restricted stock units granted at $0.00 per share as part of her compensation rather than a market purchase.

How many Nine Energy Service (NINE) shares did Ann G. Fox acquire in this Form 4?

Ann G. Fox acquired 331,111 shares of Nine Energy Service Common Stock through a grant of restricted stock units. This entire amount is reflected as her directly held position following the transaction as disclosed in the Form 4 insider filing.

At what price were the Nine Energy Service (NINE) shares granted to Ann G. Fox?

The 331,111 Nine Energy Service shares granted to Ann G. Fox carried a transaction price of $0.00 per share. This indicates a compensation-related equity award, not an open-market purchase, and reflects standard stock-based compensation practices for executives and directors.

What is the vesting schedule for Ann G. Fox’s Nine Energy Service (NINE) restricted stock units?

The time-based restricted stock units granted to Ann G. Fox will vest in three equal installments. Vesting begins on the first anniversary of the applicable vesting commencement date, and each installment requires her continued employment through the corresponding vesting date.

How many Nine Energy Service (NINE) shares does Ann G. Fox hold after this Form 4 transaction?

After this transaction, Ann G. Fox is reported as directly holding 331,111 shares of Nine Energy Service Common Stock. This total matches the number of shares in the restricted stock unit grant disclosed in the filing, indicating this award defines her reported position here.