Updated Jul 16, 2026
Lewis Michael A has filed 2 SEC Form 4 filings across 1 company in the last 90 days — selling. Lifetime open-market sales: $158K.

| Role | Director |
|---|---|
| Notability | 20/100 |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-05-21 | NPKI | NPK International Inc. | A — Grant or award | 8.6K | $0.00 | |
| 2026-05-19 | NPKI | NPK International Inc. | S — Open-market sale | 2.0K | $15.30 | $31K |
| 2026-02-25 | NPKI | NPK International Inc. | S — Open-market sale [10b5-1] | 2.0K | $14.31 | $29K |
| 2025-08-25 | NPKI | NPK International Inc. | S — Open-market sale | 2.0K | $10.33 | $21K |
| 2025-07-21 | POR | PORTLAND GENERAL ELECTRIC CO /OR/ | S — Open-market sale | 1.9K | $40.10 | $78K |
| 2025-07-18 | POR | PORTLAND GENERAL ELECTRIC CO /OR/ | A — Grant or award | 3.9K | $40.02 | $155K |
Lewis Michael A is a corporate insider — currently tracked as Director of NPK International Inc. (NPKI). InsiderAlpha tracks every SEC Form 4 filing in real time.
2 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 0 open-market purchases () and 4 open-market sales ($158K) across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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