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sellWeak cluster of 210b5-1 plan

Jason P Rhodes sold $4.2M of DYN

director at Dyne Therapeutics, Inc.. 227,337 shares at an average of $18.38, traded Apr 28, 2026, filed Apr 30, 2026.

Warning score
33
Value
$4.2M
227,337 shares
Holdings after
1,158,923
-14% from before
From 52-week low
+122%
low $8.18, close $18.16
From 52-week high
-25%
high $24.29, as of Apr 28, 2026

Score components

  • Role
    Director
    +15
  • Trade size
    $4.2M at market
    +25
  • Share of holdings sold
    Sold 14% of holdings
    +5
  • Cluster
    2 insiders selling within 14 days
    +8
  • 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 +10.1%, 3m +46.6%, 6m -.

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 Apr 30, 2026: -5.2%SPY +8.8% · excess -14.0%

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 0001577014-26-000006, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Apr 28, 2026SOpen-market sale
Common Stockindirect: See footnote10b5-1
-59,870$18.38$1.1M1,577,432Apr 30, 2026
Apr 28, 2026SOpen-market sale
Common Stockindirect: See footnote10b5-1
-119,115$18.38$2.2M4,939,489Apr 30, 2026
Apr 28, 2026SOpen-market sale
Common Stockindirect: See footnote10b5-1
-1,170$18.38$22k8,512Apr 30, 2026
Apr 28, 2026SOpen-market sale
Common Stockindirect: See footnote10b5-1
-47,082$18.38$865k1,158,944Apr 30, 2026
Apr 28, 2026SOpen-market sale
Common Stockindirect: See footnote10b5-1
-26$19.00$4941,577,406Apr 30, 2026
Apr 28, 2026SOpen-market sale
Common Stockindirect: See footnote10b5-1
-52$19.00$9884,939,437Apr 30, 2026
Apr 28, 2026SOpen-market sale
Common Stockindirect: See footnote10b5-1
-1$19.00$198,511Apr 30, 2026
Apr 28, 2026SOpen-market sale
Common Stockindirect: See footnote10b5-1
-21$19.00$3991,158,923Apr 30, 2026

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%
31Weak
DYNsell 510b5-1
Dyne Therapeutics, Inc.
John Cox
CEO & President
$131k
4,986 shares
-1%
55Moderate
DYNsell 510b5-1
Dyne Therapeutics, Inc.
Jason P Rhodes
director
$65M
2,586,928 shares
-64%
23Weak
DYNsell 510b5-1
Dyne Therapeutics, Inc.
Erick Lucera
Chief Financial Officer
$47k
1,797 shares
-1%
16Weak
DYNsell 510b5-1
Dyne Therapeutics, Inc.
Douglas Kerr
Chief Medical Officer
$41k
1,556 shares
-1%
10Weak
DYNsell 510b5-1
Dyne Therapeutics, Inc.
Johanna Friedl-Naderer
Chief Commercial Officer
$5,939
226 shares
-0%
20Weak
DYNsell10b5-1
Dyne Therapeutics, Inc.
Dirk Kersten
director
$6.7M
261,460 shares
-7%

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.

Jason P Rhodes sold $4.2M of DYN | InsiderTell