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sellWeak cluster of 6

Michael McNamara sold $429k of VICR

General Manager Mfg. Ops at VICOR CORP. 4,237 shares at an average of $101.23, traded Dec 11, 2025, filed Dec 12, 2025.

Warning score
37
Value
$429k
4,237 shares
Holdings after
18,138
-20% from before
From 52-week low
+156%
low $39.41, close $100.97
From 52-week high
0%
high $100.97, as of Dec 11, 2025

Score components

  • Role
    Officer
    +15
  • Trade size
    $429k at market
    +17
  • Share of holdings sold
    Sold 20% of holdings
    +5
  • Cluster
    6 insiders selling within 14 days
    +15
  • Exercise and sell
    Shares came from an option exercise in the same filing
    -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 +45.5%, 3m +76.5%, 6m +210.6%.

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.

VICROct 9, 2026 · close 266.07
Since filing Dec 12, 2025: +172.1%SPY +15.3% · excess +156.7%

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 0001545814-25-000006, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Dec 11, 2025MOption exercise
Common Stock
+2,626$69.04$181k20,764Dec 12, 2025
Dec 11, 2025SOpen-market sale
Common Stock
-2,626$101.20$266k18,138Dec 12, 2025
Dec 11, 2025MOption exercise
Common Stock
+1,611$31.05$50k19,749Dec 12, 2025
Dec 11, 2025SOpen-market sale
Common Stock
-1,611$101.28$163k18,138Dec 12, 2025
Dec 11, 2025MOption exercise
Non Qualified Stock Optionderivative
-2,626$0.00$010,000Dec 12, 2025
Dec 11, 2025MOption exercise
Non Qualified Stock Optionderivative
-1,611$0.00$00Dec 12, 2025

Related signals

Other insiders at VICOR CORP and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
33Weak
VICRsell 210b5-1
VICOR CORP
Philip D Davies
Corp. VP-Global Sales & Mktg.
$972k
3,072 shares
-62%
38Weak
VICRsell 210b5-1
VICOR CORP
Patrizio Vinciarelli
Chairman & CEO
$6.3M
20,000 shares
-0%
38Weak
VICRsell 210b5-1
VICOR CORP
Patrizio Vinciarelli
Chairman & CEO
$6.2M
20,000 shares
-0%
19Weak
VICRsell10b5-1
VICOR CORP
Philip D Davies
Corp. VP-Global Sales & Mktg.
$546k
3,073 shares
-62%
48Moderate
VICRsell 3
VICOR CORP
Zmira Lavie
director
$227k
908 shares
-100%
58Moderate
VICRsell 3
VICOR CORP
Samuel J Anderson
director
$524k
2,073 shares
-34%
35Weak
VICRsell 310b5-1
VICOR CORP
Philip D Davies
Corp. VP-Global Sales & Mktg.
$650k
3,072 shares
-62%
41Moderate
VICRsell 2
VICOR CORP
Zmira Lavie
director
$273k
1,216 shares
-100%
32Weak
VICRsell 410b5-1
VICOR CORP
Patrizio Vinciarelli
Chairman & CEO
$212k
700 shares
-0%
40Moderate
VICRsell 410b5-1
VICOR CORP
Philip D Davies
Corp. VP-Global Sales & Mktg.
$1.1M
3,073 shares
-62%

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.

Michael McNamara sold $429k of VICR | InsiderTell