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sellWeak cluster of 510b5-1 plan

Simon Read sold $327k of DNTH

director at Dianthus Therapeutics, Inc. /DE/. 2,778 shares at an average of $117.55, traded Aug 19, 2026, filed Aug 19, 2026.

Warning score
30
Value
$327k
2,778 shares
Holdings after
0
-100% from before
From 52-week low
+401%
low $22.70, close $113.70
From 52-week high
-2%
high $115.96, as of Aug 19, 2026

Score components

  • Role
    Director
    +15
  • Trade size
    $327k at market
    +15
  • Share of holdings sold
    Sold 100% of holdings
    +20
  • Cluster
    5 insiders selling within 14 days
    +15
  • 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.

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.

DNTHOct 12, 2026 · close 81.57
Since filing Aug 19, 2026: -28.3%SPY +1.4% · excess -29.7%

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 0001688199-26-000006, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Aug 19, 2026MOption exercise
Common Stock10b5-1
+2,778$18.36$51k2,778Aug 19, 2026
Aug 19, 2026SOpen-market sale
Common Stock10b5-1
-2,778$117.55$327k0Aug 19, 2026
Aug 19, 2026MOption exercise
Stock Option (Right to Buy)derivative10b5-1
-2,778$0.00$019,445Aug 19, 2026

Related signals

Other insiders at Dianthus Therapeutics, Inc. /DE/ and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
25Weak
DNTHsell10b5-1
Dianthus Therapeutics, Inc. /DE/
Edward Carr
CHIEF ACCOUNTING OFFICER
$2.0M
20,000 shares
-100%
33Weak
DNTHsell 210b5-1
Dianthus Therapeutics, Inc. /DE/
Simrat Randhawa
EVP, Head of R&D
$2.5M
23,124 shares
-85%
29Weak
DNTHsell 410b5-1
Dianthus Therapeutics, Inc. /DE/
Simon Read
director
$304k
2,777 shares
-100%
40Moderate
DNTHsell 410b5-1
Dianthus Therapeutics, Inc. /DE/
Adam M Veness
SVP, General Counsel and Sec.
$2.2M
20,000 shares
-522%
38Weak
DNTHsell 410b5-1
Dianthus Therapeutics, Inc. /DE/
Anne McGeorge
director
$845k
7,750 shares
-100%
50Moderate
DNTHsell 410b5-1
Dianthus Therapeutics, Inc. /DE/
Marino Garcia
CEO AND PRESIDENT
$18M
166,000 shares
-72%
32Weak
DNTHsell10b5-1
Dianthus Therapeutics, Inc. /DE/
Ryan Savitz
EVP, CFO & CBO
$3.2M
31,249 shares
-100%
25Weak
DNTHsell10b5-1
Dianthus Therapeutics, Inc. /DE/
Adam M Veness
SVP, General Counsel and Sec.
$2.4M
30,000 shares
-100%
25Weak
DNTHsell10b5-1
Dianthus Therapeutics, Inc. /DE/
Simrat Randhawa
EVP, Head of R&D
$2.4M
26,530 shares
-87%
7Weak
DNTHsell10b5-1
Dianthus Therapeutics, Inc. /DE/
Paula Soteropoulos
director
$51k
599 shares
-100%

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.

Simon Read sold $327k of DNTH | InsiderTell