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Insider ActivityNPKI
LANIGAN MATTHEW, President & CEO, Director at NPK International Inc., traded $564K of NPKI
Updated Jun 17, 2026
LANIGAN MATTHEW
President & CEO, Director
NPK International Inc. ·
$NPKI
Transaction Details
| Insider | LANIGAN MATTHEW |
|---|---|
| Title | President & CEO, Director |
| Company | NPK International Inc. |
| Ticker | NPKI |
| Transaction Type | Tax |
| Transaction Date | 2026-06-01 |
| Shares Traded | 39,423 |
| Price Per Share | $14.31 |
| Total Value | $564K |
| Filed Date | 2026-06-03 |
| Accession Number | 0001672978-26-000004 |
Ownership Context
| Shares Owned After Transaction | 321,886 |
|---|---|
| Ownership Type | Direct |
SEC Filing
Accession: 0001672978-26-000004
Other Insider Trades — NPKI
| Insider | Title | Action | Value | Date |
|---|---|---|---|---|
| Briggs Lori | VP & President, Ind. Solutions | sold | $123K | 2026-06-08 |
| LANIGAN MATTHEW | President & CEO, Director | sold | $2.4M | 2026-06-03 |
| Briggs Lori | VP & President, Ind. Solutions | sold | $152K | 2026-06-02 |
| Briggs Lori | VP & President, Ind. Solutions | traded | $137K | 2026-06-01 |
| LANIGAN MATTHEW | President & CEO, Director | traded | — | 2026-06-01 |
| Briggs Lori | VP & President, Ind. Solutions | traded | $77K | 2026-06-01 |
| Piontek Gregg | Senior Vice President and CFO | traded | $161K | 2026-06-01 |
| Piontek Gregg | Senior Vice President and CFO | traded | $128K | 2026-06-01 |
| LANIGAN MATTHEW | President & CEO, Director | traded | $318K | 2026-06-01 |
| LANIGAN MATTHEW | President & CEO, Director | traded | $399K | 2026-06-01 |
Other Trades by LANIGAN MATTHEW
| Ticker | Company | Action | Value | Date |
|---|---|---|---|---|
| NPKI | NPK International Inc. | sold | $2.4M | 2026-06-03 |
| NPKI | NPK International Inc. | traded | $318K | 2026-06-01 |
| NPKI | NPK International Inc. | traded | $399K | 2026-06-01 |
| NPKI | NPK International Inc. | traded | — | 2026-06-01 |
| NPKI | NPK International Inc. | traded | — | 2026-05-19 |
Full Ticker Profile
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Data sourced from SEC Form 4 insider trading filings. Transaction details are as reported to the Securities and Exchange Commission. This page does not constitute financial advice. StonkWhisper presents public records — it does not verify or guarantee the accuracy of SEC filings.
Last updated: June 17, 2026 at 07:04 UTC