Matthew Lanigan - 01 Jun 2025 Form 4 Insider Report for NPK International Inc. (NPKI)

Role
President & CEO, Director
Signature
By: M. Celeste Fruge For: Matthew Lanigan
Issuer symbol
NPKI
Transactions as of
01 Jun 2025
Net transactions value
-$844,669
Form type
4
Filing time
03 Jun 2025, 18:21:39 UTC
Previous filing
16 May 2025
Next filing
26 Aug 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
LANIGAN MATTHEW President & CEO, Director 9320 LAKESIDE BOULEVARD, SUITE 100, THE WOODLANDS By: M. Celeste Fruge For: Matthew Lanigan 03 Jun 2025 0001672978

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction NPKI Common Stock Options Exercise $0 +108,651 +11% $0.000000 1,100,134 01 Jun 2025 Direct F1
transaction NPKI Common Stock Options Exercise $0 +100,188 +9.1% $0.000000 1,200,322 01 Jun 2025 Direct F1
transaction NPKI Common Stock Tax liability $179,857 -22,232 -1.9% $8.09 1,178,090 01 Jun 2025 Direct F2
transaction NPKI Common Stock Tax liability $318,932 -39,423 -3.3% $8.09 1,138,667 01 Jun 2025 Direct F2
transaction NPKI Common Stock Tax liability $345,880 -42,754 -3.8% $8.09 1,095,913 01 Jun 2025 Direct F2

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 NPKI Restricted Stock Units Options Exercise $0 -108,651 -35% $0.000000 200,376 01 Jun 2025 Common Stock 108,651 $0.000000 Direct F1, F3
transaction NPKI Restricted Stock Units Options Exercise $0 -100,188 -50% $0.000000 100,188 01 Jun 2025 Common Stock 100,188 $0.000000 Direct F1, F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Restricted stock units convert into common stock on a one-for-one basis.
F2 Represents shares withheld to satisfy tax withholding obligations upon the vesting of restricted stock units.
F3 Grant of restricted stock units that vest in one-third increments on June 1 of each subsequent year after grant and settle in shares.