M-tron Industries, Inc. (MPTI) Insider Trading

Last 12 months

Insiders sold $204k and bought nothing on the open market.

None of the selling was scheduled in advance under a 10b5-1 plan. The last open-market buy by an executive or director was in Jun 2025.

Net open-market

−$204k

0 buys · 5 sales

Under a 10b5-1 plan

of the value sold

Insiders who bought / sold

0 / 3

executives and directors

Last open-market buy

Jun 2025

Jun 27, 2025

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Trades · last 2 years

Date	Insider	Trade	Shares	Price	Value	Of their stake	Filing
Aug 11	Linda M Biles Executive VP - Finance	SoldNo plan	1,218	$85.05	$104k	4.4%	Form 4
May 4	William Arnold Drafts President	SoldNo plan	361	$66.78	$24k	2.5%	Form 4
May 4	Cameron Pforr CEO and CFO	SoldNo plan	840	$66.78	$56k	3.0%	Form 4
May 4	Linda M Biles Executive VP - Finance	SoldNo plan	306	$66.78	$20k	1.1%	Form 4
Apr 14	Linda M Biles Executive VP - Finance	SoldNo plan	720	—	—	2.4%	Form 4
Jun 27, 2025	William Arnold Drafts President	Bought	1,000	$40.50	$41k	10.0%	Form 4
Nov 14, 2024	Mario J Gabelli Large holder	SoldNo plan	7,500	$60.11	$451k	2.5%	Form 4
Nov 13, 2024	Mario J Gabelli Large holder	SoldNo plan	1,500	$52.58	$79k	0.5%	Form 4

Aug 11No plan
Linda M Biles
Executive VP - Finance · sold 1,218 at $85.05
$104k
4.4% of stake
May 4No plan
William Arnold Drafts
President · sold 361 at $66.78
$24k
2.5% of stake
May 4No plan
Cameron Pforr
CEO and CFO · sold 840 at $66.78
$56k
3.0% of stake
May 4No plan
Linda M Biles
Executive VP - Finance · sold 306 at $66.78
$20k
1.1% of stake
Apr 14No plan
Linda M Biles
Executive VP - Finance · sold 720
—
2.4% of stake
Jun 27, 2025
William Arnold Drafts
President · bought 1,000 at $40.50
$41k
10.0% of stake
Nov 14, 2024No plan
Mario J Gabelli
Large holder · sold 7,500 at $60.11
$451k
2.5% of stake
Nov 13, 2024No plan
Mario J Gabelli
Large holder · sold 1,500 at $52.58
$79k
0.5% of stake

How to read this. Insiders sell for many reasons: taxes, diversifying, a house. Open-market buys are rarer and say more. A 10b5-1 plan is a trading schedule set up months in advance, so those sales were not timed on news. Large holders (funds and 10% owners) are listed under Everything but not counted as insiders. If you own or watch MPTI, we send a push when an executive buys or makes a large sale outside a plan.

Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.

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Spot a number that looks wrong? Check it in MPTI's SEC filings or

Download this analysis as a PDF (Pro)

Data sourced from SEC EDGAR filings and third-party price providers. Scores, valuations, and metrics are algorithmic estimates. This is not investment advice. See our Terms and Methodology.

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