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sellWeak cluster of 710b5-1 plan

Kathleen P. Gallagher sold $8,915 of RNA

Chief Program Officer at Avidity Biosciences, Inc.. 188 shares at an average of $47.42, traded Sep 2, 2025, filed Sep 2, 2025.

Warning score
10
Value
$8,915
188 shares
Holdings after
50,204
-0% from before
From 52-week low
-
no price yet
From 52-week high
-
no price yet

Score components

  • Role
    Officer
    +15
  • Trade size
    $9k at market
    0
  • Share of holdings sold
    Sold 0.4% of holdings
    0
  • Cluster
    7 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 -, 3m -, 6m +6.2%.

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.

RNAOct 9, 2026 · close 8.40
Since filing Feb 27, 2026: -43.1%SPY +23.3% · excess -66.3%

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 0001599901-25-000171, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Sep 2, 2025SOpen-market sale
Common Stock10b5-1
-188$47.42$8,91550,204Sep 2, 2025

Related signals

Other insiders at Avidity Biosciences, Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
22Weak
RNAsell 810b5-1
Avidity Biosciences, Inc.
Teresa McCarthy
Chief Human Resources Officer
$212k
2,929 shares
-3%
21Weak
RNAsell 810b5-1
Avidity Biosciences, Inc.
Arthur A Levin
director
$127k
1,758 shares
-10%
32Weak
RNAsell 810b5-1
Avidity Biosciences, Inc.
Michael F MacLean
Chief Financial Officer
$329k
4,542 shares
-7%
27Weak
RNAsell 810b5-1
Avidity Biosciences, Inc.
W. Michael Flanagan
Chief Scientific Officer
$473k
6,534 shares
-7%
45Moderate
RNAsell 810b5-1
Avidity Biosciences, Inc.
Sarah Boyce
President and CEO
$1.0M
14,387 shares
-5%
30Weak
RNAsell 810b5-1
Avidity Biosciences, Inc.
Steven George Hughes
Chief Medical Officer
$355k
4,895 shares
-13%
21Weak
RNAsell 810b5-1
Avidity Biosciences, Inc.
W. Michael Flanagan
Chief Scientific Officer
$171k
2,373 shares
-3%
21Weak
RNAsell 810b5-1
Avidity Biosciences, Inc.
Steven George Hughes
Chief Medical Officer
$171k
2,373 shares
-6%
28Weak
RNAsell 810b5-1
Avidity Biosciences, Inc.
Michael F MacLean
Chief Financial Officer
$143k
1,974 shares
-3%
21Weak
RNAsell 810b5-1
Avidity Biosciences, Inc.
John B Moriarty
Chief Legal Officer
$171k
2,374 shares
-3%

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.

Kathleen P. Gallagher sold $8,915 of RNA | InsiderTell