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sellModerate cluster of 4

Stuart Kupinsky sold $191k of MRCY

EVP, CLO & Corp Sec at MERCURY SYSTEMS INC. 2,287 shares at an average of $83.56, traded Feb 17, 2026, filed Feb 19, 2026.

Warning score
42
Value
$191k
2,287 shares
Holdings after
68,010
-3% from before
From 52-week low
+101%
low $41.52, close $83.32
From 52-week high
-19%
high $103.02, as of Feb 17, 2026

Score components

  • Role
    Officer
    +15
  • Trade size
    $191k at market
    +12
  • Share of holdings sold
    Sold 3.3% of holdings
    0
  • Cluster
    4 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.

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.

MRCYOct 9, 2026 · close 79.49
Since filing Feb 19, 2026: -11.5%SPY +14.6% · excess -26.2%

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 0001049521-26-000011, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Feb 17, 2026SOpen-market sale
Common Stock
-2,287$83.56$191k68,010Feb 19, 2026

Related signals

Other insiders at MERCURY SYSTEMS INC and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
4Weak
MRCYsell10b5-1
MERCURY SYSTEMS INC
Stuart Kupinsky
EVP, CLO & Corp Sec
$87k
1,000 shares
-2%
35Weak
MRCYsell
MERCURY SYSTEMS INC
Steven Ratner
EVP, CHRO
$338k
4,000 shares
-17%
55Moderate
MRCYsell 4
MERCURY SYSTEMS INC
JANA Partners Management, LP
director, other
$41M
452,057 shares
-10%
52Moderate
MRCYsell 4
MERCURY SYSTEMS INC
Howard L Lance
director
$430k
4,832 shares
-15%
37Weak
MRCYsell 4
MERCURY SYSTEMS INC
Douglas Munro
SVP, CAO
$49k
582 shares
-4%
55Moderate
MRCYsell 3
MERCURY SYSTEMS INC
JANA Partners Management, LP
director, other
$32M
400,000 shares
-8%
40Moderate
MRCYsell 3
MERCURY SYSTEMS INC
Douglas Munro
SVP, CAO
$98k
1,329 shares
-8%
60Notable
MRCYsell 3
MERCURY SYSTEMS INC
JANA Partners Management, LP
director, other
$75M
1,000,000 shares
-17%
41Moderate
MRCYsell 3
MERCURY SYSTEMS INC
Debora A Plunkett
director
$126k
1,700 shares
-9%
15Weak
MRCYsell
MERCURY SYSTEMS INC
Douglas Munro
VP, CAO
$4,918
67 shares
-0%

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.