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sellWeak cluster of 310b5-1 plan

Richard William Scalzo sold $41k of DYN

SVP, Head of Finance & Admin. at Dyne Therapeutics, Inc.. 1,455 shares at an average of $28.12, traded Dec 11, 2024, filed Dec 11, 2024.

Warning score
16
Value
$41k
1,455 shares
Holdings after
127,078
-1% from before
From 52-week low
-
no price yet
From 52-week high
-
no price yet

Score components

  • Role
    Officer
    +15
  • Trade size
    $41k at market
    +6
  • Share of holdings sold
    Sold 1.1% of holdings
    0
  • Cluster
    3 insiders selling within 14 days
    +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 -42.2%, 3m -55.0%, 6m -47.0%.

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.

DYNOct 9, 2026 · close 16.64
Since filing Dec 11, 2024: -39.4%SPY +31.1% · excess -70.6%

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 0000950170-24-135570, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Dec 11, 2024SOpen-market sale
Common Stock10b5-1
-1,455$28.12$41k127,078Dec 11, 2024

Related signals

Other insiders at Dyne Therapeutics, Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
32Weak
DYNbuy
Dyne Therapeutics, Inc.
Brian S Posner
director
$40k
2,500 shares
+10%
30Weak
DYNsell 310b5-1
Dyne Therapeutics, Inc.
John Cox
CEO & President
$107k
5,658 shares
-2%
20Weak
DYNsell 310b5-1
Dyne Therapeutics, Inc.
Douglas Kerr
Chief Medical Officer
$116k
5,035 shares
-3%
15Weak
DYNsell 310b5-1
Dyne Therapeutics, Inc.
Johanna Friedl-Naderer
Chief Commercial Officer
$25k
1,085 shares
-1%
35Weak
DYNsell 410b5-1
Dyne Therapeutics, Inc.
Dirk Kersten
director
$2.5M
129,672 shares
-3%
33Weak
DYNbuy
Dyne Therapeutics, Inc.
Brian S Posner
director
$39k
2,000 shares
+17%
40Moderate
DYNsell 410b5-1
Dyne Therapeutics, Inc.
Dirk Kersten
director
$13M
688,788 shares
-13%
35Weak
DYNbuy
Dyne Therapeutics, Inc.
Brian S Posner
director
$45k
3,000 shares
+35%
26Weak
DYNsell 410b5-1
Dyne Therapeutics, Inc.
John Cox
CEO & President
$41k
2,732 shares
-1%
10Weak
DYNsell 410b5-1
Dyne Therapeutics, Inc.
Douglas Kerr
Chief Medical Officer
$13k
904 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.

Richard William Scalzo sold $41k of DYN | InsiderTell