Skip to content
sellWeak

Mary Beth Dooley sold $111 of SYBX

Head of Finance at SYNLOGIC, INC.. 79 shares at an average of $1.40, traded Oct 29, 2024, filed Oct 30, 2024.

Warning score
15
Value
$111
79 shares
Holdings after
15,152
-1% from before
From 52-week low
-
no price yet
From 52-week high
-
no price yet

Score components

  • Role
    Officer
    +15
  • Trade size
    $111 at market
    0
  • Share of holdings sold
    Sold 0.5% of holdings
    0
  • Cluster
    No other insider selling within 14 days
    0

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 -3.1%, 3m -2.1%, 6m -21.9%.

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.

SYBXOct 9, 2026 · close 1.10
Since filing Oct 30, 2024: -24.7%SPY +37.3% · excess -62.0%

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 0000950170-24-119194, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Oct 29, 2024SOpen-market sale
Common Stock
-79$1.40$11115,152Oct 30, 2024

Related signals

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

ScoreCompanyInsiderValueHoldingsFiled
15Weak
SYBXsell
SYNLOGIC, INC.
Mary Beth Dooley
See Remarks below
$284
157 shares
-1%
15Weak
SYBXsell
SYNLOGIC, INC.
Mary Beth Dooley
See Remarks below
$173
144 shares
-1%
20Weak
SYBXsell
SYNLOGIC, INC.
Mary Beth Dooley
See Remarks below
$2,802
2,107 shares
-14%

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.