Gregg Piontek
CIK 1418328 · Senior Vice President and CFO · last filed 2026-06-03
Gregg Piontek is a Senior Vice President and CFO who has filed 64 SEC Form 4 insider transactions across 1 company since 2007. The most recent filing, for NR, was dated Jun 3, 2026. Across all open-market trades the lifetime net is −$3.6M, making them a net seller over the disclosed history.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$0
1
64
-$3.61M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| NPK International Inc. (NR) Delisted | Senior Vice President and CFO | 894,044 | $7.25 | $6.48M | -$3.61M | 63 | 2026-06-03 |
Recent Filings
64 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-06-03 | NPK International Inc. (NR) Delisted | Mixed | +4,290 | -$516.4K | EDGAR |
| 2026-05-21 | NPK International Inc. (NR) Delisted | Grant (A) | +34,566 | $0 | EDGAR |
| 2026-04-10 | NPK International Inc. (NR) Delisted | Sell (S) | −15,000 | -$225.7K | EDGAR |
| 2026-04-03 | NPK International Inc. (NR) Delisted | Sell (S) | −35,000 | -$507.9K | EDGAR |
| 2026-03-26 | NPK International Inc. (NR) Delisted | Sell (S) | −15,000 | -$225.4K | EDGAR |
| 2026-03-05 | NPK International Inc. (NR) Delisted | Mixed | −35,000 | -$1.21M | EDGAR |
| 2026-03-04 | NPKI | Notice (144) | −173,590 | -$2.38M | EDGAR |
| 2025-06-03 | NPK International Inc. (NR) Delisted | Mixed | +42,090 | -$340.4K | EDGAR |
| 2025-05-16 | NPK International Inc. (NR) Delisted | Grant (A) | +85,706 | $0 | EDGAR |
| 2024-06-04 | NPK International Inc. (NR) Delisted | Mixed | +82,092 | -$451.6K | EDGAR |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.