NPK International Inc. (NPKI) Ownership & Trading Activity
Institutional holders, insider transactions, and congressional trades for NPKI. 13F holdings as of 2026-06-30.
In 13F filings for the quarter ended June 30, 2026, 247 institutions reported holding NPKI, with 78.5 million shares worth $1.2 billion in aggregate.
Top Institutional Holders
| Institution | Shares | Value | Change |
|---|---|---|---|
| BlackRock | 7,940,503 | $126M | INCREASED |
| Vanguard | 5,316,133 | $85M | INCREASED |
| Ameriprise Financial | 4,486,433 | $71M | DECREASED |
| Dimensional Fund Advisors | 3,641,547 | $58M | DECREASED |
| American Century Companies | 3,128,652 | $50M | INCREASED |
Full institutional holdings, insider history, and congressional trades for NPK International Inc. on SentiSense.