Piontek Gregg

CIK: 0001418328

Piontek Gregg is a corporate insider at NPK International Inc. (NPKI) filing SEC Form 4 transactions. 183 transactions, totaling $125,587 in purchases and $1,243,818 in sales. Source: SEC EDGAR.

Total Transactions
183
Total Buy Value
$126K
Total Sell Value
$1.24M
Net Activity
$-1.12M
Last Transaction
Jun 2026
Companies
1

Companies

Transaction History

Source: SEC EDGAR Form 4 insider transaction filings.

Type
Exercise
Shares
40,379
Price
-
Value
-
Type
Exercise
Shares
40,379
Price
-
Value
-
Type
Tax Payment
Shares
11,241
Price
$14.31
Value
$161K
Type
Tax Payment
Shares
15,889
Price
$14.31
Value
$227K
Type
Tax Payment
Shares
8,959
Price
$14.31
Value
$128K
Type
Award
Shares
34,566
Price
-
Value
-
Type
Sale
Shares
15,000
Price
$15.04
Value
$226K
Type
Sale
Shares
35,000
Price
$14.51
Value
$508K
Type
Sale
Shares
15,000
Price
$15.03
Value
$225K
Type
Exercise
Shares
40,379
Price
-
Value
-
Type
Exercise
Shares
43,790
Price
-
Value
-
Type
Exercise
Shares
40,379
Price
-
Value
-
Type
Tax Payment
Shares
8,959
Price
$8.09
Value
$72K
Type
Tax Payment
Shares
15,889
Price
$8.09
Value
$129K
Type
Tax Payment
Shares
17,231
Price
$8.09
Value
$139K
Type
Exercise
Shares
43,790
Price
-
Value
-
Type
Award
Shares
85,706
Price
-
Value
-
NEWPARK RESOURCES INC
NR
Type
Exercise
Shares
40,380
Price
-
Value
-
NEWPARK RESOURCES INC
NR
Type
Exercise
Shares
43,790
Price
-
Value
-
NEWPARK RESOURCES INC
NR
Type
Exercise
Shares
51,181
Price
-
Value
-