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MPTI · M-Tron Industries, Inc.
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MPTI M-tron Industries (MPTI) Insider Trading, Ownership & Congress Trades

Semiconductors & Electronics · Electronic components, nec · CIK 0001902314
Quote by TradingView
Form 144 · 1
Insider buyers, 180 days
0
House members buying, 1 year
0
STOCK Act, US House only, disclosed up to 45 days after the trade
Funds added, last quarter
0
13F, latest reported quarter

What the filings say about MPTI

Insiders, 180 days
-$204.2K net sold
3 sellers · 0% of sales under a 10b5-1 plan
Planned sales (Form 144), 90 days
$103.6K
1 notice

M-tron Industries insider trades (Form 4)

Form 4 buys and sells (codes P and S). Grants, option exercises and conversions excluded.

Over the last 180 days, M-tron Industries, Inc. insiders sold a net $204.2K of stock across 44 Form 4 purchases and sales, with no insider buying. Source: SEC Form 4 filings, as of 2026-10-28.

Insider
Filed
Shares
Value
Since filing
Biles Linda M
Executive VP - Finance
SELL
2026-08-19 SECtraded 2026-08-11
1,218
$103.6K
-16.2%
Context
  • 1 earlier Form 4 trade (code P or S) here by this insider (1 sale), the last on May 4, 2026.
  • The trade is 4.2% of the 28,723 shares held after it.
  • No other insider sold within 30 days.
Insider activity: Executive VP - Finance Biles Linda M sold about $103.6K of MPTI on Aug 11, 2026, the largest insider sale at the company since 2024.
Drafts William Arnold
President
SELL
2026-05-06 SECtraded 2026-05-04
361
$24.1K
-11.7%
Context
  • 3 earlier Form 4 trades (code P or S) here by this insider (1 buy, 2 sales), the last on Jun 27, 2025.
  • The trade is 2.6% of the 13,816 shares held after it.
  • 2 other insiders sold within 30 days.
Insider activity: President Drafts William Arnold sold about $24.1K of MPTI on May 4, 2026, the largest insider sale at the company since 2024; 2 other insiders sold within 30 days.
Pforr Cameron
CEO and CFO
SELL
2026-05-06 SECtraded 2026-05-04
840
$56.1K
-11.7%
Context
  • First Form 4 purchase or sale (code P or S) here by this insider on our record.
  • The trade is 3.1% of the 26,806 shares held after it.
  • 2 other insiders sold within 30 days.
Insider activity: CEO and CFO Pforr Cameron sold about $56.1K of MPTI on May 4, 2026, the largest insider sale at the company since 2024; 2 other insiders sold within 30 days.
Biles Linda M
Executive VP - Finance
SELL
2026-05-06 SECtraded 2026-05-04
306
$20.4K
-11.7%
Context
  • First Form 4 purchase or sale (code P or S) here by this insider on our record.
  • The trade is 1.1% of the 28,376 shares held after it.
  • 2 other insiders sold within 30 days.
Insider activity: Executive VP - Finance Biles Linda M sold about $20.4K of MPTI on May 4, 2026, the largest insider sale at the company since 2024; 2 other insiders sold within 30 days.
Drafts William Arnold
President
BUY
2025-06-27 SEC
1,000
$40.5K
+61.1%
Context
  • 2 earlier Form 4 trades (code P or S) here by this insider (2 sales), the last on Jan 10, 2024.
  • The trade is 9.1% of the 11,008 shares held after it.
  • No other insider bought within 30 days.
Insider activity: President Drafts William Arnold bought about $40.5K of MPTI on Jun 27, 2025, the largest insider purchase at the company on our record.
44 transactions on record
Since filing: total return from the first close after the filing to the latest close, dividend-adjusted. Not a forecast.
Context lines are counts over the filings above and returns from our own price history, never a price level. Not investment advice.
See all insider buying · insider selling
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Seven facts, ranked against the sector · Rank is not a forecast
Insiders
net -$204.2K over 180 days
-$103.6K over 90 days
more than 79% of Semiconductors & Electronics
Congress
no House purchase disclosed in the last 12 months
Funds
under five funds report holding it
Revenue
+11.0% year over year
more than 51% of Semiconductors & Electronics
Margin
15.5% net margin
more than 84% of Semiconductors & Electronics
Buybacks
no share repurchases reported
Short interest
10.2% of the float short (float per yahoo 2026-10-26) · 5.1 days to cover · settled 2026-09-30
more than 74% of Semiconductors & Electronics
What changed in the last 30 days
Nothing new filed in the last 30 days

Watch MPTI

A free account keeps a watchlist and can send one email a day when insiders, funds or Congress file on the names in it. No password and no card.

The year, with the filings on it
Total return over 12 months. Each marker is a filing; hover or tap one for the detail.
+23.2%12M
-21%+14%+49%+83%2025-102025-122026-022026-042026-062026-082026-10 2026-08-11 · Biles Linda M sold $103.6K2026-05-04 · Pforr Cameron sold $56.1K2026-05-04 · Drafts William Arnold sold $24.1K2026-05-04 · Biles Linda M sold $20.4K2026-08-11 · Linda Biles filed to sell $103.6K
Insider sellForm 144 (planned sale)
Indexed to 100, dividend-adjusted, not a price chart. When a name files heavily, the largest trades are drawn first.

Who owns MPTI: institutional holders (13F)

13F holdings, latest reported quarter
SEC 13F
No reported 13F holders

No fund above the reporting threshold listed this stock last quarter. That is a fact, not missing data.

Congress trades in MPTI

No Congress trades reported
No House member has disclosed a trade in this stock. See what Congress is buying.

Activist and 5% holders (13D/13G)

No 5%+ ownership filings
Nobody has filed for crossing 5%. That is a fact, not missing data.

MPTI planned insider sales (Form 144)

Notice of intent to sell, filed before any sale
Linda Biles
Filed 2026-08-11
$103.6K
Executive pay vs shareholder return · Mr. Ferrantino
CEO pay, headline and as actually paid, against the company's return and its chosen peers' (DEF 14A).
FY
CEO total
Actually paid
Other execs, avg
TSR
Peer TSR
2025
$1.2M
$1.4M
$641.4K
+306%
n/a
2024
$376.3K
$376.3K
$496.8K
+270%
n/a
2023
$225.0K
$253.7K
$281.4K
+173%
n/a
Tagged by the company under SEC Item 402(v). Returns are cumulative from the start of the disclosure period. Green where the company beat its own peer group.
Live price
Daily candles from TradingView, under their licence. No filings marked.
Why this name is on the desk
Insiders have filed to sell, before selling.
The record shows a net $204.2K sold by insiders over 180 days, $103.6K in planned Form 144 sales. Each figure is a federal filing, dated the day it went public.
Backtest this pattern Open the screener
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Sector by SEC SIC code
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MPTI financials

Revenue growth
+11.0%
XBRL, annual
Net margin
15.5%
Ratios from the company's XBRL filings, latest filings
Revenue, TTM
$58.2M
four quarters, 2025-07-01 to 2026-06-30
Net margin, TTM
+16.3%
net income over revenue, 2025-07-01 to 2026-06-30
Free cash flow, TTM
$9.5M
operating cash flow minus capex, 2025-07-01 to 2026-06-30
Debt to equity
0.00x
long-term debt only, 2023-03-31 (39 months older than the period end); equity 2026-06-30
Cash flow to debt
203.71x
TTM operating cash flow over long-term debt only, 2023-03-31 (39 months older than the period end)
Return on equity
+12.4%
TTM net income over average of 2025-06-30 and 2026-06-30
Return on assets
+11.5%
TTM net income over average of 2025-06-30 and 2026-06-30
Return on invested capital
+40.3%
operating income after a 21.7% effective tax rate, over long-term debt only, 2023-03-31 (39 months older than the period end) plus average of 2025-06-30 and 2026-06-30 minus cash
Return on capital employed
+14.0%
operating income (EBIT proxy) over average of 2025-06-30 and 2026-06-30 minus current liabilities
P/E, trailing
24.88x
close 2026-10-26 over four quarters of diluted EPS, 2025-07-01 to 2026-06-30
Enterprise value
$197.9M
market value at close 2026-10-26 on 2026-07-31 shares, plus long-term debt only, 2023-03-31 (39 months older than the period end), minus cash 2026-06-30
FCF yield
+3.2%
TTM free cash flow over market value at close 2026-10-26
PEG, trailing
7.27x
P/E over trailing EPS growth of 3%: four quarters to 2026-06-30 against the four to 2025-06-30
Price as of 2026-10-26. Hover or tap a tile for its yearly and quarterly history.
Method
TTM is four consecutive fiscal quarters; Q4 is the year minus nine months when not filed. Returns use the average of opening and closing balances. EBIT is approximated by operating income. PEG uses trailing EPS growth.
Fundamentals
Annual figures from XBRL filings. Pick a past date to see them as known then.
2025-122024-122023-122022-12
Revenue$54.4M$49.0M$41.2M$31.8M
Operating income$10.3M$9.4M$4.3M$2.9M
Net income$8.4M$7.6M$3.5M$1.8M
EPS (diluted)2.622.651.280.67
Operating cash flow$10.7M$7.5M$4.4M$2.0M
Cash$20.9M$12.6M$3.9M$926.0K
Long-term debtn/an/an/a$76.0K
SEC XBRL, fiscal years, as known on 2026-10-28

MPTI Stock Sonar score 5/7 axes

Find similar shapesCompare

MPTI ranks highest on financial health (95th percentile) and profitability (79th), and lowest on risk and compliance (22nd), among Semiconductors & Electronics peers.

ProfitHealthGrowthInsidersRisk
Profitability
79
Inputs
  • Return on equity+12.4% · 67 pct, sector of 154
  • Return on assets+11.5% · 82 pct, sector of 171
  • Return on invested capital+40.3% · 85 pct, sector of 56
  • Return on capital employed+14.0% · 82 pct, sector of 155
Financial health
95
Inputs
  • Debt to equity0.00x · 90 pct, sector of 152
  • Cash flow to debt203.71x · 99 pct, sector of 136
Growth
51
Inputs
  • Revenue growth, YoY+11.0% · 51 pct, sector of 194
  • Backlog growth, YoYno backlog line filed, or no year-earlier backlog
Insider conviction
39
Inputs
  • Net Form 4 buying (codes P and S), 180d-$204K · 77 pct, sector of 147
  • Insider buyers, 180d0 · 0 pct, sector of 151
Risk and compliance
22
Inputs
  • Short interest, % of float+10.2% · 29 pct, sector of 221
  • Recalls per $1B revenue, 3ynot measured for this sector, almost no peer has an event
  • EPA cases per $1B revenue, 5ynot measured for this sector, almost no peer has an event
  • New text in Risk Factors, latest 10-K+25.4% · 16 pct, sector of 152
2 not measured: Institutional and government, US patents
  • Institutional and government needs 1 of 4 inputs, 0 present: fewer than five funds report holding it; no Congress trades in 365 days; no federal contracts in 180 days; no lobbying filings in the last four quarters
  • US patents needs 1 of 2 inputs, 0 present: patent data not loaded yet

5 of 7 axes scored. Each is a percentile against sector peers (all companies when the sector is thin); higher is better. An unscored axis is unmeasured, not low. How it is scored

MPTI filings, in plain words

Are M-tron Industries insiders buying or selling MPTI?

In the 180 days to 2026-10-28, M-tron Industries insiders were net sellers, a net $204.2K across purchases and sales reported on Form 4, by 3 sellers.

Are there planned insider sales of MPTI?

Yes. 1 Form 144 notice of planned insider sales was filed in the 90 days to 2026-10-28, covering $103.6K of stock; the latest, by Linda Biles, was filed 2026-08-11.

Read the full summary

In the 180 days to 2026-10-28, M-tron Industries insiders were net sellers of MPTI, a net $204.2K across purchases and sales reported on Form 4 by 3 sellers. None of the 4 insider sales was flagged as made under a Rule 10b5-1 plan. Insiders filed 1 Form 144 notice of intent to sell in the 90 days to 2026-10-28, covering $103.6K of stock. Each figure is counted from SEC and House filings as of 2026-10-28, dated the day the filing was made public.

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