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Insider trades
Open-market buys and sells by officers, directors and 10% owners, from SEC Form 4. Usually filed within two business days.
About this data
- What it is
- When a company's officers, directors or owners of more than 10% buy or sell its stock, they must report the trade to the SEC on Form 4. This feed shows purchases and sales on the open market; stock grants, option exercises and shares withheld for tax are left out.
- Who files it
- The insider, usually through the company, within two business days of the trade.
- How current
- We collect new filings throughout the day on SEC business days.
- Worth knowing
- Sales are often routine: insiders sell to diversify, to pay taxes, or under a 10b5-1 plan set up months in advance. A purchase with their own money is less common, which is why many investors pay closer attention to it.
All of this comes from public filings.
Source and freshness · Information, not investment advice (disclaimer).
Open-market trades per day, last 30 days
Purchases Sales
By trade date. Insiders have two business days to file, so the most recent days fill in later.
Latest open-market insider trades
Showing: ticker MPTI
| Traded | Insider | Company | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Aug 11, 2026 | Linda M. Biles Executive VP - Finance | MPTI M-tron Industries, Inc. | Sale | 1,218 | $85.05 | $103.6K Sale | Form 4 ↗ |
| May 4, 2026 | William Arnold Drafts President | MPTI M-tron Industries, Inc. | Sale | 361 | $66.78 | $24.1K Sale | Form 4 ↗ |
| May 4, 2026 | Cameron Pforr CEO and CFO | MPTI M-tron Industries, Inc. | Sale | 840 | $66.78 | $56.1K Sale | Form 4 ↗ |
| May 4, 2026 | Linda M. Biles Executive VP - Finance | MPTI M-tron Industries, Inc. | Sale | 306 | $66.78 | $20.4K Sale | Form 4 ↗ |
| Apr 14, 2026 | Linda M. Biles Executive VP - Finance | MPTI M-tron Industries, Inc. | Sale | 720 | — | $0 Sale | Form 4 ↗ |
| Jun 27, 2025 | William Arnold Drafts President | MPTI M-tron Industries, Inc. | Buy | 1,000 | $40.50 | $40.5K Buy | Form 4 ↗ |
| Nov 14, 2024 | Mario J. Gabelli 10% owner | MPTI M-tron Industries, Inc. | Sale | 7,500 | $60.11 | $450.8K Sale | Form 4 ↗ |
| Nov 13, 2024 | Mario J. Gabelli 10% owner | MPTI M-tron Industries, Inc. | Sale | 1,500 | $52.58 | $78.9K Sale | Form 4 ↗ |
| Oct 14, 2024 | Ivan Arteaga Director | MPTI M-tron Industries, Inc. | Sale | 1,600 | $50.67 | $81.1K Sale | Form 4 ↗ |
| Oct 11, 2024 | Ivan Arteaga Director | MPTI M-tron Industries, Inc. | Sale | 400 | $49.41 | $19.8K Sale | Form 4 ↗ |
| Sep 30, 2024 | Mario J. Gabelli 10% owner | MPTI M-tron Industries, Inc. | Sale | 171 | $41.60 | $7,114 Sale | Form 4 ↗ |
11 items, most recent first (up to 50). Every row links to its original filing. Updated Nov 15, 2026, 5:45 PM EST.
Download CSV The rows of this feed, with the filters above. A download holds at most 10,000 rows; narrow the filters to get a smaller slice.
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