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sellWeak cluster of 3

Linda M Biles sold $20k of MPTI

Executive VP - Finance at M-tron Industries, Inc.. 306 shares at an average of $66.78, traded May 4, 2026, filed May 6, 2026.

Warning score
30
Value
$20k
306 shares
Holdings after
28,376
-1% from before
From 52-week low
+84%
low $38.68, close $71.09
From 52-week high
-8%
high $77.06, as of May 4, 2026

Score components

  • Role
    Officer
    +15
  • Trade size
    $20k at market
    0
  • Share of holdings sold
    Sold 1.1% of holdings
    0
  • Cluster
    3 insiders selling within 14 days
    +15

What happened after comparable sells

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

This signal so far: 1m +20.7%, 3m +19.2%, 6m -.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

MPTIOct 13, 2026 · close 68.97
Since filing May 6, 2026: -5.8%SPY +6.6% · excess -12.4%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0001437749-26-015223, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
May 4, 2026SOpen-market sale
Common Stock
-306$66.78$20k28,376May 6, 2026

Related signals

Other insiders at M-tron Industries, Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
25Weak
MPTIsell
M-tron Industries, Inc.
Linda M Biles
Executive VP - Finance
$104k
1,218 shares
-4%
35Weak
MPTIsell 3
M-tron Industries, Inc.
William Arnold Drafts
President
$24k
361 shares
-3%
47Moderate
MPTIsell 3
M-tron Industries, Inc.
Cameron Pforr
CEO and CFO
$56k
840 shares
-3%
37Weak
MPTIbuy
M-tron Industries, Inc.
William Arnold Drafts
President
$41k
1,000 shares
+10%
29Weak
MPTIsell
M-tron Industries, Inc.
Mario J Gabelli
owner
$451k
7,500 shares
-6%
21Weak
MPTIsell
M-tron Industries, Inc.
Mario J Gabelli
owner
$79k
1,500 shares
-1%
53Moderate
MPTIsell 2
M-tron Industries, Inc.
Ivan Arteaga
director
$101k
2,000 shares
-85%
20Weak
MPTIsell 2
M-tron Industries, Inc.
Mario J Gabelli
owner
$7,113
171 shares
-0%
17Weak
MPTIsell
M-tron Industries, Inc.
Mario J Gabelli
owner
$27k
800 shares
-0%
18Weak
MPTIsell
M-tron Industries, Inc.
Mario J Gabelli
owner
$47k
1,400 shares
-1%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.