NPKI: NPK International Inc. insider trading, 5% holders and institutional ownership
From public SEC filings: open-market insider purchases and sales (Form 4, last 180 days), holders of 5% or more (Schedules 13D and 13G) and institutional ownership (Form 13F). Insider and 5% data delayed 48 hours.
Insider trading
0 open-market buys totaling - and 0 sales totaling - in the last 180 days.
Activist and 5% holders
| Filed | What | Holder | Stake | Change | Filing |
|---|---|---|---|---|---|
| 2026-07-31 | New 13G stake | Vanguard Capital Management | 5.01% | SEC | |
| 2026-07-29 | 13G amendment | BlackRock, Inc. | 8.40% | SEC |
Institutional ownership (Q2 2026)
256 institutions reported holding $1.21B of NPK International Inc. on Form 13F (247 the quarter before). 37 opened a new position and 26 sold out. Shares held by institutions: +4%.
| Largest holders | Shares | Value |
|---|---|---|
| BlackRock, Inc. | 7,940,503 | $126.33M |
| AMERIPRISE FINANCIAL INC | 4,486,433 | $71.38M |
| DIMENSIONAL FUND ADVISORS LP | 3,641,547 | $57.94M |
| VANGUARD CAPITAL MANAGEMENT LLC | 3,604,823 | $57.35M |
| AMERICAN CENTURY COMPANIES INC | 3,128,652 | $49.78M |
| WASATCH ADVISORS LP | 2,811,593 | $44.73M |
| GEODE CAPITAL MANAGEMENT, LLC | 2,369,714 | $37.71M |
| ROYCE & ASSOCIATES LP | 2,149,100 | $34.19M |
| STATE STREET CORP | 2,014,703 | $32.05M |
| PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. | 1,738,857 | $27.67M |
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