Skip to content
sellWeak10b5-1 plan

John Joseph Johnston sold $11k of MXCT

director at MAXCYTE, INC.. 3,000 shares at an average of $3.78, traded Dec 6, 2024, filed Dec 10, 2024.

Warning score
0
Value
$11k
3,000 shares
Holdings after
141,950
-2% from before
From 52-week low
-
no price yet
From 52-week high
-
no price yet

Score components

  • Role
    Director
    +15
  • Trade size
    $11k at market
    0
  • Share of holdings sold
    Sold 2.1% of holdings
    0
  • Cluster
    No other insider selling within 14 days
    0
  • Exercise and sell
    Shares came from an option exercise in the same filing
    -15
  • 10b5-1 plan
    Pre-scheduled under a 10b5-1 plan
    -20

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 +9.1%, 3m -17.2%, 6m -44.9%.

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.

MXCTOct 9, 2026 · close 1.01
Since filing Dec 10, 2024: -75.9%SPY +32.1% · excess -108.0%

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 0001415889-24-028839, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Dec 6, 2024MOption exercise
Common Stock10b5-1
+505$2.93$1,478142,455Dec 10, 2024
Dec 6, 2024SOpen-market sale
Common Stock10b5-1
-505$3.70$1,869141,950Dec 10, 2024
Dec 9, 2024MOption exercise
Common Stock10b5-1
+891$2.93$2,607142,841Dec 10, 2024
Dec 9, 2024MOption exercise
Common Stock10b5-1
+1,121$1.64$1,840143,962Dec 10, 2024
Dec 9, 2024MOption exercise
Common Stock10b5-1
+483$2.93$1,416144,445Dec 10, 2024
Dec 9, 2024SOpen-market sale
Common Stock10b5-1
-2,495$3.79$9,459141,950Dec 10, 2024
Dec 6, 2024MOption exercise
Stock Option (right to buy)derivative10b5-1
-505$0.00$0891Dec 10, 2024
Dec 9, 2024MOption exercise
Stock Option (right to buy)derivative10b5-1
-891$0.00$00Dec 10, 2024
Dec 9, 2024MOption exercise
Stock Option (right to buy)derivative10b5-1
-1,121$0.00$00Dec 10, 2024
Dec 9, 2024MOption exercise
Stock Option (right to buy)derivative10b5-1
-483$0.00$023,417Dec 10, 2024

Related signals

Other insiders at MAXCYTE, INC. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
22Weak
MXCTsell
MAXCYTE, INC.
Douglas J Swirsky
CHIEF FINANCIAL OFFICER
$8,266
10,142 shares
-6%
0Weak
MXCTsell10b5-1
MAXCYTE, INC.
Rekha Hemrajani
director
$22k
10,684 shares
-21%
62Notable
MXCTbuy 5
MAXCYTE, INC.
William W Brooke
director
$65k
50,000 shares
+50%
68Notable
MXCTbuy 5
MAXCYTE, INC.
Richard Douglas
director
$111k
80,000 shares
+53%
65Notable
MXCTbuy 5
MAXCYTE, INC.
Stanley C Erck
director
$137k
100,000 shares
+34%
78Notable
MXCTbuy 5
MAXCYTE, INC.
Maher Masoud
President and CEO
$103k
75,000 shares
+75%
69Notable
MXCTbuy 5
MAXCYTE, INC.
Douglas J Swirsky
CHIEF FINANCIAL OFFICER
$65k
50,000 shares
+45%
0Weak
MXCTsell10b5-1
MAXCYTE, INC.
John Joseph Johnston
director
$14k
3,000 shares
-2%
0Weak
MXCTsell10b5-1
MAXCYTE, INC.
John Joseph Johnston
director
$12k
3,000 shares
-2%
5Weak
MXCTsell 210b5-1
MAXCYTE, INC.
Stanley C Erck
director
$177k
47,689 shares
-15%

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.

John Joseph Johnston sold $11k of MXCT | InsiderTell