Gregg S. Piontek - Senior Vice President and CFO at NPK International Inc.

Issuer-level insider activity

Role
Senior Vice President and CFO
Issuer ticker
NPKI on NYSE
Identity Names, identifiers, and filing context for this profile. 1 identity field
Entity type
Individual
Source evidence Original filing metadata and source links for verification. 1 source field
Source filing history
Open source filing history

Past-year transaction volume for Gregg S. Piontek in NPK International Inc.

Buys

Open market
Shares
Avg price
Total value

Sells

Open market
Shares
-173,590
Avg price
$14.33
Total value
-$2,486,979

Net

Past year
Shares
-173,590
Share %
-100%
Total value
-$2,486,979

Reported holdings for Gregg S. Piontek in NPK International Inc.

Form 4 holding Senior Vice President and CFO

NPK International Inc.

Security class
Restricted Stock Units
Shares / value
0
Estimated value
$1,056,167
Report date
01 Jun 2026
Price
$8.48
Ownership
Direct
Underlying class
Common Stock
Underlying amount
Form 4 holding Senior Vice President and CFO

NPK International Inc.

Security class
Non-Qualified Stock Option (right to buy)
Shares / value
0
Estimated value
Report date
04 Mar 2026
Price
Ownership
Direct
Underlying class
Common Stock
Underlying amount

Transaction history for Gregg S. Piontek in NPK International Inc.

Sym Class Transaction % SEC-reported value SEC-reported price Shares Shares after Date Ownership
* marks a reported price that did not pass the local price check.
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