LYTIR

Company · NPKI

NPK International Inc.

Nasdaq's symbol directory lists NPKI on the New York Stock Exchange as “NPK International Inc. Common Stock”.

In the 12 months to Nov 8, 2026: insiders bought on 1 occasion ($139K); insiders sold on 3 occasions ($204K); 1 planned-sale notice; 3 filings by holders of 5% or more; 3 company reports (Form 8-K, since May 26, 2026).

All insider filings at the SEC

Insider purchases and sales, by month (last 12 months)Insider purchases: $139K in total; Insider sales: $204K in total.Aug: Insider sales $164KSep: Insider sales $40KNov: Insider purchases $139KDecJanFebMarAprMayJunJulAugSepOctNov
Insider purchases above the line: $139KInsider sales below: $204K
Dollar value of open-market purchases and sales reported on SEC Form 4, by the month traded. Sales include pre-arranged 10b5-1 plan sales.

Insider trades · SEC Form 4

Those inside the hall

Open-market purchases and sales only. Legs one person filed for one day are combined.

Who traded

  1. John C. Minge bought on 1 day latest Nov 2, 2026 bought $139K
  2. ROBESON ROSE M sold on 1 day all under a 10b5-1 plan latest Aug 27, 2026 sold $135K
  3. Warren Matthew James, Chief Accounting Officer sold on 1 day all under a 10b5-1 plan latest Sep 9, 2026 sold $40K
  4. Lewis Michael A sold on 1 day all under a 10b5-1 plan latest Aug 17, 2026 sold $29K
Every trade (4)
  1. BUYJohn C. Minge bought Nov 2, 2026 15,000 shares filing $139K
  2. SELLWarren Matthew James, Chief Accounting Officer sold Sep 9, 2026 2,991 shares 10b5-1 plan (scheduled) filing $40K
  3. SELLROBESON ROSE M sold Aug 27, 2026 10,000 shares 10b5-1 plan (scheduled) filing $135K
  4. SELLLewis Michael A sold Aug 17, 2026 2,013 shares 10b5-1 plan (scheduled) filing $29K

Planned sales · SEC Form 144

Notice given

A Form 144 is filed before an insider sells restricted stock. It states an intent; the sale, if it happens, appears later on a Form 4. Every recent notice

  1. MATTHEW WARREN filed Sep 9, 2026 Officer 2,991 shares planned sale date 09/09/2026 filing $40K

Large holders · SEC Schedules 13D and 13G

Five percent and over

Anyone who comes to hold more than 5% of a company's voting shares must tell the SEC. A Schedule 13D is filed by a holder who may seek to influence the company; a 13G by one who states it is a passive investor. An amendment updates an earlier filing, and a stake reported as 0% means the holder says it has sold all, or nearly all, of its shares. Every recent 13D and 13G

  1. Vanguard Capital Management filed Oct 30, 2026 Schedule 13G/A passive 4,226,179 shares filing 4.97%
  2. Vanguard Capital Management filed Jul 31, 2026 Schedule 13G passive 4,235,599 shares filing 5.01%
  3. BlackRock, Inc. filed Jul 29, 2026 Schedule 13G/A passive 7,107,308 shares filing 8.4%

Company reports · SEC Form 8-K

In its own words

Current reports the company filed with the SEC; most items are due within four business days of the event. Each line lists the report's items by the SEC's own titles; the filing says what happened. Reports collected since May 26, 2026; every 8-K at the SEC.

  1. Regulation FD disclosure filing Oct 30, 2026
  2. Results of operations and financial condition filing Oct 29, 2026
  3. Departure or appointment of directors or officers filing Sep 14, 2026

Sources: SEC EDGAR (Forms 4, 144 and 8-K) and STOCK Act periodic transaction reports. Filings can be late, amended or wrong at the source; see methodology.