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sellModerate cluster of 310b5-1 plan

Jason P Rhodes sold $18M of DYN

director at Dyne Therapeutics, Inc.. 777,451 shares at an average of $22.97, traded Jul 6, 2026, filed Jul 8, 2026.

Warning score
40
Value
$18M
777,451 shares
Holdings after
2,962
-17% from before
From 52-week low
+179%
low $8.18, close $22.84
From 52-week high
-6%
high $24.29, as of Jul 6, 2026

Score components

  • Role
    Director
    +15
  • Trade size
    $17.9M at market
    +25
  • Share of holdings sold
    Sold 17% of holdings
    +5
  • 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.

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 Jul 8, 2026: -30.2%SPY +4.6% · excess -34.8%

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 0001577014-26-000014, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Jul 6, 2026SOpen-market sale
Common Stockindirect: See footnote10b5-1
-253,039$22.79$5.8M4,223,448Jul 8, 2026
Jul 6, 2026SOpen-market sale
Common Stockindirect: See footnote10b5-1
-127,182$22.79$2.9M1,217,537Jul 8, 2026
Jul 6, 2026SOpen-market sale
Common Stockindirect: See footnote10b5-1
-100,019$22.79$2.3M875,912Jul 8, 2026
Jul 7, 2026SOpen-market sale
Common Stockindirect: See footnote10b5-1
-124,379$23.17$2.9M4,099,069Jul 8, 2026
Jul 7, 2026SOpen-market sale
Common Stockindirect: See footnote10b5-1
-29,587$23.62$699k4,069,482Jul 8, 2026
Jul 7, 2026SOpen-market sale
Common Stockindirect: See footnote10b5-1
-62,543$23.17$1.4M1,154,994Jul 8, 2026
Jul 7, 2026SOpen-market sale
Common Stockindirect: See footnote10b5-1
-14,844$23.62$351k1,140,150Jul 8, 2026
Jul 7, 2026SOpen-market sale
Common Stockindirect: See footnote10b5-1
-49,193$23.17$1.1M826,719Jul 8, 2026
Jul 7, 2026SOpen-market sale
Common Stockindirect: See footnote10b5-1
-11,665$23.62$276k815,054Jul 8, 2026
Jul 7, 2026SOpen-market sale
Common Stockindirect: See footnote10b5-1
-5,000$23.61$118k2,962Jul 8, 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 $18M of DYN | InsiderTell