M-tron Industries, Inc. MPTI
CIK 0001902314
Form 4 transactions dated Sep 1, 2023 to Sep 26, 2026, as reported to the SEC.
Insider purchases & sales
- Purchased
- $46.14K
- Sold
- $13.16M
Sep 1, 2023 – Aug 19, 2026
Available records · partial months are marked ·
| Date | Insider | Activity | Trade value (USD) | % of prior holding | |
|---|---|---|---|---|---|
| 2023-12-22 | GABELLI MARC · EMG MADONNA EDUCATIONAL FOUNDATION INC. Director · 10% owner | Sale | $338.94K 10,000 shares sold | Unavailable Direct holding | ▾ |
| 2023-12-21 | GABELLI MARC · EMG MADONNA EDUCATIONAL FOUNDATION INC. Director | Sale | $76.70K 2,300 shares sold | Unavailable Direct holding | ▾ |
| 2023-12-15 | GABELLI MARC · EMG MADONNA EDUCATIONAL FOUNDATION INC. Director · 10% owner | Sale | $25.94K 931 shares sold | Unavailable Direct holding | ▾ |
| 2023-12-14 | GABELLI MARC · EMG MADONNA EDUCATIONAL FOUNDATION INC. Director · 10% owner | Sale | $698.86K 25,257 shares sold | Unavailable Direct holding | ▾ |
| 2023-12-11 | FERRANTINO MICHAEL J JR Chief Executive Officer · Director | Sale | $109.96K 3,500 shares sold | 15.14% sold Direct holding | ▾ |
| 2023-12-08 | GABELLI MARC · EMG MADONNA EDUCATIONAL FOUNDATION INC. Director · 10% owner | Sale | $194.14K 6,130 shares sold | Unavailable Direct holding | ▾ |
| 2023-12-06 | GABELLI MARC · EMG MADONNA EDUCATIONAL FOUNDATION INC. Director · 10% owner | Sale | $359.44K 10,287 shares sold | Unavailable Direct holding | ▾ |
| 2023-12-05 | GABELLI MARC · EMG MADONNA EDUCATIONAL FOUNDATION INC. Director · 10% owner | Sale | $990.13K 27,895 shares sold | Unavailable Direct holding | ▾ |
| 2023-12-05 | Arteaga Ivan Director | Sale | $72.26K 2,000 shares sold | 50.00% sold Direct holding | ▾ |
| 2023-12-04 | Arteaga Ivan Director | Sale | $257.50K 7,274 shares sold | 64.52% sold Direct holding | ▾ |
Showing 18 / 18 record groups in 2023. The complete set is available through the API.
Follow the people behind the trades.
Sign in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and reach other datasets through the Akkru API.
- Download CSV
- Earlier filings
- Advanced screening & filtering
- API & AI access
＋ New accounts get free API credits to explore data beyond ownership filings.
For AI agents & developers
The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. For the year shown, this page lists 18 of 18 purchase / sale groups and 14 of 14 other groups; the totals and the monthly series cover the whole window.
Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP.
MCP https://api.akkrudata.ai/mcp
list_insider_transactions
{"ticker":"MPTI","transaction_code":["P","S"],"transaction_form_type":"4","page_size":20}Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.
- MCP endpoint
- https://api.akkrudata.ai/mcp
- API / MCP documentation
- /documents
- llms.txt
- /llms.txt
Sources, coverage & how to read this data
Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.