There have been 39 recent insider transactions recorded for NPK International Inc. (NPKI), including 16 buys and 21 sells. Total insider buying was valued at $190.23K and total insider selling at $1.84M.
Notable insiders with recent activity include Piontek Gregg, Fruge Mary Celeste, Lewis Michael A. Insider transactions can provide insights into how company leadership views the stock's valuation and future prospects.
Insider Transactions — NPKI
| Date |
Name |
Role |
Transaction |
Shares |
Avg. Price |
Value |
Shares Owned |
| 2026-04-01 |
Piontek Gregg |
Senior Vice President and CFO |
Informative Sell |
35,000 |
$14.51 |
$507.86K |
834,326 |
| 2026-03-25 |
Piontek Gregg |
Senior Vice President and CFO |
Informative Sell |
15,000 |
$15.03 |
$225.38K |
869,326 |
| 2026-03-16 |
Fruge Mary Celeste |
VP, General Counsel |
Option Exercise (Sell) |
1,000 |
$4.32 |
$4.32K |
- |
| 2026-03-06 |
Fruge Mary Celeste |
VP, General Counsel |
Option Exercise (Sell) |
11,193 |
$4.32 |
$48.35K |
1,000 |
| 2026-03-04 |
Piontek Gregg |
Senior Vice President and CFO |
Option Exercise (Sell) |
73,590 |
$4.32 |
$317.91K |
- |
| 2026-02-23 |
Lewis Michael A |
Director |
Informative Sell |
2,013 |
$14.31 |
$28.8K |
131,333 |
| 2025-11-24 |
Lewis Michael A |
Director |
Informative Sell |
2,013 |
$12.00 |
$24.16K |
133,346 |
| 2025-10-03 |
Lanigan Matthew |
President & CEO |
Gift (Given) |
770,249 |
- |
- |
325,664 |
| 2025-10-01 |
Briggs Lori |
VP & President, Ind. Solutions |
Informative Sell |
10,108 |
$11.51 |
$116.35K |
242,513 |
| 2025-09-03 |
Lanigan Matthew |
President & CEO |
Option Exercise (Sell) |
1,000 |
$4.32 |
$4.32K |
- |
| 2025-08-25 |
Lewis Michael A |
Director |
Informative Sell |
2,013 |
$10.33 |
$20.8K |
135,359 |
| 2025-08-22 |
Lanigan Matthew |
President & CEO |
Option Exercise (Sell) |
68,896 |
$4.32 |
$297.63K |
1,000 |
| 2025-08-11 |
Briggs Lori |
VP & President, Ind. Solutions |
Informative Sell |
8,005 |
$9.51 |
$76.15K |
252,621 |
| 2025-07-09 |
Briggs Lori |
VP & President, Ind. Solutions |
Informative Sell |
8,005 |
$8.57 |
$68.58K |
260,626 |
| 2025-06-16 |
Lewis Michael A |
Director |
Informative Sell |
2,013 |
$8.60 |
$17.32K |
137,372 |
| 2025-06-14 |
White Douglas L |
VP, CAO & Treasurer |
RSU Award |
730 |
$6.51 |
$4.75K |
305,245 |
| 2025-06-06 |
Briggs Lori |
VP & President, Ind. Solutions |
Informative Sell |
9,704 |
$8.38 |
$81.32K |
268,631 |
| 2025-06-01 |
Fruge Mary Celeste |
VP, General Counsel |
Option Exercise (Sell) |
17,274 |
- |
- |
17,274 |
| 2025-06-01 |
Piontek Gregg |
Senior Vice President and CFO |
Option Exercise (Sell) |
40,379 |
- |
- |
40,379 |
| 2025-06-01 |
White Douglas L |
VP, CAO & Treasurer |
Option Exercise (Sell) |
14,667 |
- |
- |
14,666 |
| 2025-06-01 |
Lanigan Matthew |
President & CEO |
Option Exercise (Sell) |
100,188 |
- |
- |
100,188 |
| 2025-06-01 |
Briggs Lori |
VP & President, Ind. Solutions |
Option Exercise (Sell) |
24,340 |
- |
- |
24,340 |
| 2025-06-01 |
Fruge Mary Celeste |
VP, General Counsel |
Option Exercise (Sell) |
17,247 |
- |
- |
17,301 |
| 2025-05-19 |
Meer Claudia Michel |
Director |
Informative Buy |
4,000 |
$7.92 |
$31.68K |
118,135 |
| 2025-05-15 |
Robeson Rose M |
Director |
RSU Award |
18,720 |
- |
- |
214,285 |
| 2025-05-15 |
Lewis Michael A |
Director |
RSU Award |
15,097 |
- |
- |
139,385 |
| 2025-05-15 |
Larson Roderick A. |
Director |
RSU Award |
15,097 |
- |
- |
15,097 |
| 2025-05-15 |
Cutillo Joseph A |
Director |
RSU Award |
15,097 |
- |
- |
27,597 |
| 2025-05-15 |
Minge John C |
Director |
RSU Award |
15,097 |
- |
- |
245,384 |
| 2025-05-15 |
Meer Claudia Michel |
Director |
RSU Award |
15,097 |
- |
- |
114,135 |
| 2025-05-15 |
Young Donald Win |
Director |
RSU Award |
15,097 |
- |
- |
310,940 |
| 2025-05-14 |
Piontek Gregg |
Senior Vice President and CFO |
RSU Award |
85,706 |
- |
- |
877,236 |
| 2025-05-14 |
White Douglas L |
VP, CAO & Treasurer |
RSU Award |
29,900 |
- |
- |
288,228 |
| 2025-05-14 |
Lanigan Matthew |
President & CEO |
RSU Award |
212,667 |
- |
- |
991,483 |
| 2025-05-14 |
Briggs Lori |
VP & President, Ind. Solutions |
RSU Award |
51,667 |
- |
- |
252,963 |
| 2025-05-14 |
Fruge Mary Celeste |
VP, General Counsel |
RSU Award |
39,783 |
- |
- |
265,389 |
| 2025-05-08 |
Cutillo Joseph A |
Director |
Informative Buy |
12,500 |
$8.00 |
$100K |
12,500 |
| 2025-03-10 |
Cutillo Joseph A |
Director |
Unknown |
- |
- |
- |
- |
| 2025-03-05 |
Minge John C |
Director |
Informative Buy |
10,000 |
$5.38 |
$53.8K |
230,287 |
■ Informative Buy/Sell — open market transaction (most significant)
■ Uninformative Buy — award, option exercise, conversion
■ Uninformative Sell — tax withholding, award vest sale
■ Neutral — gift, trust, expiry
