John C. Minge
Director · NPK International Inc.
Individual
- 2026
- May 21, 2026
- 1
Filings (90d)
0
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies John C. Minge files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Gregg Piontek - $2.49M in NPKI purchases and sales in the last 12 months
- Matthew Lanigan - $2.42M in NPKI purchases and sales in the last 12 months
- Lori Briggs - $275K in NPKI purchases and sales in the last 12 months
- Mary Celeste Fruge - $163K in NPKI purchases and sales in the last 12 months
- Rose M. Robeson - $135K in NPKI purchases and sales in the last 12 months
- Michael A. Lewis - $112K in NPKI purchases and sales in the last 12 months
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Frequently asked questions
Who is John C. Minge?
John C. Minge is a corporate insider, tracked as Director of NPK International Inc. (NPKI). InsiderAlpha holds 1 primary Form 4 filing for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
When did John C. Minge last file a Form 4?
The only primary Form 4 on record is dated 21 May 2026.
