Director Robeson Rose (NPKI) receives 10,862-share equity grant at NPK International

Rhea-AI Filing Summary

ROBESON ROSE M reported acquisition or exercise transactions in this Form 4 filing.

NPK International Inc. director Robeson Rose M received a grant of 10,862 shares of common stock, recorded at no purchase price, as equity compensation. Following this award, Rose holds 225,147 common shares directly. The granted shares will vest on the earlier of the first anniversary of the grant date or the day before the next annual stockholders meeting.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider ROBESON ROSE M

Role null

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	10,862	$0.00	--

Holdings After Transaction: Common Stock — 225,147 shares (Direct, null)

Footnotes (1)

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Key Figures

Shares granted: 10,862 shares Transaction price per share: $0.0000 per share Shares owned after transaction: 225,147 shares

3 metrics

Shares granted 10,862 shares Equity award of common stock to director Robeson Rose M

Transaction price per share $0.0000 per share Recorded price for the 10,862-share grant

Shares owned after transaction 225,147 shares Direct common stock holdings after the award

Key Terms

Grant, award, or other acquisition, vest, annual stockholders meeting

3 terms

Grant, award, or other acquisition financial

"transaction_code_description: Grant, award, or other acquisition"

vest financial

"The shares will vest on the earlier of the first anniversary"

A vest is the process by which an employee earns the right to receive certain benefits or ownership interests, such as stock or retirement funds, over time. It’s similar to earning a reward gradually, ensuring that the benefit becomes fully yours only after a set period or meeting specific conditions. This makes it important for investors because it determines when they can actually claim or use those benefits.

annual stockholders meeting financial

"or the day prior to the next annual stockholders meeting"

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^*

ROBESON ROSE M

(Last) (First) (Middle)

9320 LAKESIDE BOULEVARD

SUITE 100

(Street)

THE WOODLANDS TEXAS 77381

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
NPK International Inc. [ NPKI ]

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)
05/20/2026

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	05/20/2026		A		10,862(1)	A	$0.0	225,147	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. The shares will vest on the earlier of the first anniversary of the date of grant or the day prior to the next annual stockholders meeting.

	By: M. Celeste Fruge For: Rose M. Robeson	05/21/2026
	** 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 NPKI director Robeson Rose report on this Form 4?

Director Robeson Rose reported receiving a grant of 10,862 shares of NPK International common stock. The transaction was coded as a grant, award, or other acquisition and involved no cash purchase price per share.

How many NPKI shares does Robeson Rose own after this reported grant?

After the 10,862-share grant, Robeson Rose holds 225,147 shares of NPK International common stock. This figure reflects his direct ownership position immediately following the reported equity award transaction.

At what price were the newly granted NPKI shares recorded for Robeson Rose?

The 10,862 shares of NPK International common stock were recorded at a transaction price of $0.0000 per share. This indicates the award was part of compensation, not an open-market purchase of shares.

When do the newly granted NPKI shares to Robeson Rose vest?

The granted shares vest on the earlier of the first anniversary of the grant date or the day before NPK International’s next annual stockholders meeting. This vesting schedule ties the award to both time and the company’s annual meeting cycle.

Is Robeson Rose’s NPKI share grant considered a buy or a compensation award?

The transaction is classified as a grant, award, or other acquisition rather than an open-market buy. It reflects equity compensation for Robeson Rose’s service as a director of NPK International, not a discretionary stock purchase.