M-tron Industries, Inc. (MPTI)
Data as of , from SEC Form 4 filings.
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About M-tron Industries, Inc. (MPTI)
M-Tron Industries Inc is an electronic components manufacturer based in the United States. Along with its subsidiaries, the company is engaged in designing, manufacturing, and marketing high-engineered, high-reliability frequency and spectrum control products used to control the frequency or timing of signals in electronic circuits in various applications. The company serves markets in aerospace and defense, space, and avionics sectors. Its product offerings include microwave and millimeter-wave filters, crystal resonators, clock oscillators, voltage-controlled crystal oscillators, low noise amplifiers, couplers, attenuators, and switches, among others. Geographically, it derives maximum revenue from the domestic market, and the rest from Malaysia, Australia, Greece, and other countries.
- ORLANDO, FL
- 259
- 2022
- NYSE American
MPTI Form 4 activity by transaction type, last 90 days
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market sale | 1 | 1,218 | $104K |
MPTI insider transactions (Form 4)
4735 Form 4 filings on record, the earliest from Oct 1, 2024, newest first. Filing history page 1 of 2.
| Traded | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Linda M. Biles - Officer | Open-market sale | Common Stock | 1,218 footnote F1 | $85.05 footnote F2 | $104K | |
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| Cameron Pforr - Officer | Grant or award | Common Stock | 3,805 footnote F1 | $0.00 | - | |
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| William Arnold Drafts - Officer | Grant or award | Common Stock | 2,840 footnote F1 | $0.00 | - | |
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| Linda M. Biles - Officer | Grant or award | Common Stock | 1,565 footnote F1 | $0.00 | - | |
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| William Arnold Drafts - Officer | Open-market sale | Common Stock | 361 footnote F1 | $66.78 | $24K | |
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| Cameron Pforr - Officer | Open-market sale | Common Stock | 840 footnote F1 | $66.78 | $56K | |
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| Linda M. Biles - Officer | Open-market sale | Common Stock | 306 footnote F1 | $66.78 | $20K | |
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| Cameron Pforr - Officer | Option exercise | Common Stock | 220 | $40.32 | $9K | |
| Cameron Pforr - Officer | Option exercise | Common Stock | 220 | $40.32 | $9K | |
| Cameron Pforr - Officer | Option exercise | Stock Option (right to buy) | 220 | $0.00 | - | |
| Cameron Pforr - Officer | Option exercise | Stock Option (right to buy) | 220 | $0.00 | - | |
| Ivan Arteaga - Director | Other | Common Stock | 174 footnote F1 | $59.00 | $10K | |
| Ivan Arteaga - Director | Other | Common Stock | 24 footnote F2 | $59.00 | $1K | |
| Ivan Arteaga - Director | Other | Subscription Rights (right to purchase) | 870 footnote F1 | $0.00 | - | |
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| Linda M. Biles - Officer | Open-market sale | Subscription Rights (right to purchase) | 24,643 | $0.00 | - | |
| Linda M. Biles - Officer | Open-market sale | Subscription Rights (right to purchase) | 2,700 | $0.00 | - | |
| William Arnold Drafts - Officer | Open-market sale | Subscription Rights (right to purchase) | 3,600 | $0.00 | - | |
| William Arnold Drafts - Officer | Open-market sale | Subscription Rights (right to purchase) | 7,609 | $0.00 | - | |
| William Arnold Drafts - Officer | Open-market sale | Subscription Rights (right to purchase) | 540 | $0.00 | - | |
| Marc Gabelli - Director | Other | Common Stock | 3,276 | $59.00 footnote F1 | $193K | |
| Marc Gabelli - Director | Other | Subscription Rights (right to purchase) | 16,380 | $0.00 | - | |
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| Cameron Pforr - Officer | Other | Common Stock | 100 | $59.00 | $6K | |
| Cameron Pforr - Officer | Other | Subscription Rights (right to purchase) | 500 | $0.00 | - | |
| Cameron Pforr - Officer | Open-market sale | Subscription Rights (right to purchase) | 21,500 | $0.00 | - | |
 Hendi Susanto - Director | Other | Common Stock | 454 | $59.00 | $27K | |
| Hendi Susanto - Director | Other | Common Stock | 1,071 | $59.00 | $63K | |
| Hendi Susanto - Director | Other | Subscription Rights (right to purchase) | 2,274 | $0.00 | - | |
| Hendi Susanto - Director | Other | Subscription Rights (right to purchase) | 5,355 | $0.00 | - | |
| Linda M. Biles - Officer | Open-market sale | Subscription Rights (right to purchase) | 2,700 | $0.00 | - | |
| Linda M. Biles - Officer | Open-market sale | Common Stock | 720 | $0.00 | - | |
| Cameron Pforr - Officer | Grant or award | Common Stock | 5,646 footnote F1 | $0.00 | - | |
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| Linda M. Biles - Officer | Tax withholding / forfeiture | Common Stock | 617 footnote F1 | $0.00 | - | |
| Linda M. Biles - Officer | Grant or award | Common Stock | 2,059 footnote F2 | $0.00 | - | |
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| William Arnold Drafts - Officer | Grant or award | Common Stock | 2,428 footnote F1 | $0.00 | - | |
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| Hendi Susanto - Director | Grant or award | Common Stock | 242 footnote F1 | $0.00 | - | |
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| John S. Mega - Director | Grant or award | Common Stock | 242 footnote F1 | $0.00 | - | |
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 Bel Lazar - Director | Grant or award | Common Stock | 242 footnote F1 | $0.00 | - | |
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 Robert V. Lapenta Jr. - Director | Grant or award | Common Stock | 242 footnote F1 | $0.00 | - | |
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| David M. Goldman - Director | Grant or award | Common Stock | 242 footnote F1 | $0.00 | - | |
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| Ivan Arteaga - Director | Grant or award | Common Stock | 242 footnote F1 | $0.00 | - | |
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| Marc Gabelli - Director | Grant or award | Common Stock | 242 footnote F1 | $0.00 | - | |
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| Mario J. Gabelli | Gift | Common Stock | 3,500 | $0.00 | - | |
| Mario J. Gabelli | Gift | Common Stock | 8,800 | $0.00 | - | |
| Mario J. Gabelli | Gift | Common Stock | 4,000 | $0.00 | - | |
| Mario J. Gabelli | Open-market sale | Common Stock | 7,500 | $30.05 | $451K | |
| Mario J. Gabelli | Open-market sale | Common Stock | 1,500 | $26.29 | $79K | |
| Mario J. Gabelli | Gift | Common Stock | 19,200 | $0.00 | - | |
Item 7.01, 9.01
Item 2.02, 7.01, 9.01
Item 5.07
Item 7.01, 9.01
Recent MPTI Form 144 notices of proposed sale
1An insider files Form 144 before selling restricted or control stock. It announces a planned sale. If the sale goes ahead, it shows up later on a Form 4.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| Linda M. Biles | Affiliate | 1,218 | $104K | View on EDGAR |
MPTI insider trading FAQ
What is the latest insider trade for MPTI?
M-tron Industries, Inc. (MPTI) had 1 insider filing in the last 90 days, with the most recent on 19 August 2026. The full record for MPTI runs to 35 Form 4 filings, the earliest from 1 October 2024. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.
How many insiders are buying MPTI stock?
No insider purchases of MPTI were filed in the last 90 days.
How many insiders are selling MPTI stock?
1 insider sale of MPTI was filed in the last 90 days, totaling $104K.
Where can I see MPTI SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page collects MPTI Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
More Information Technology companies with insider activity
Recent insider filings
10The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.
- - Linda M. Biles view on EDGAR
- - Cameron Pforr view on EDGAR
- - William Arnold Drafts view on EDGAR
- - Linda M. Biles view on EDGAR
- - William Arnold Drafts view on EDGAR
- - Cameron Pforr view on EDGAR
- - Linda M. Biles view on EDGAR
- - Cameron Pforr view on EDGAR
- - Ivan Arteaga view on EDGAR
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Learn more
- Insider selling: signal or noise?
- Why most insider sales are routine, and the few patterns worth a second look.
- Form 144 vs Form 4
- A Form 144 announces a planned sale; the Form 4 reports it after it happens.
- Insider activity in Information Technology
- Where MPTI's peers are being bought and sold.
- Every recent Form 4
- The market-wide feed, updated as filings arrive from SEC EDGAR.
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