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Insider · CIK 0001181556

Arthur A Levin

director

Files at RNA (Avidity Biosciences, Inc.), STOK (Stoke Therapeutics, Inc.). First filing Oct 23, 2024, latest Aug 8, 2025.

Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
0 / 4
$0 bought, $5.5M sold

Where the trades landed

Last year at the company this insider has traded most, with each buy and sell on the bar it happened.

RNA: Avidity Biosciences, Inc.

RNAOct 9, 2026 · close 8.40

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

Signals

This insider’s open-market buys and sells, scored.

ScoreCompanyValueHoldingsPrice contextFiled
40Moderate
RNAsell 710b5-1
Avidity Biosciences, Inc.
$5.1M
107,500 shares
-85%-
22Weak
RNAsell 710b5-1
Avidity Biosciences, Inc.
$54k
1,872 shares
-13%-
11Weak
RNAsell 310b5-1
Avidity Biosciences, Inc.
$140k
3,323 shares
-18%-
11Weak
RNAsell 210b5-1
Avidity Biosciences, Inc.
$233k
5,000 shares
-25%-

Transactions

Every row this insider has filed, newest first.

DateCompanyTransactionSharesPriceValueHoldings afterFiled
Dec 19, 2025RNA
Avidity Biosciences, Inc.
GGift
Common Stock
-1,330$0.00$018,320Dec 22, 2025
Aug 6, 2025RNA
Avidity Biosciences, Inc.
MOption exercise
Common Stock10b5-1
+107,500$22.34$2.4M127,150Aug 8, 2025
Aug 6, 2025RNA
Avidity Biosciences, Inc.
SOpen-market sale
Common Stock10b5-1
-107,500$47.62$5.1M19,650Aug 8, 2025
Aug 6, 2025RNA
Avidity Biosciences, Inc.
MOption exercise
Stock Option (Right to Buy)derivative10b5-1
-107,500$0.00$012,500Aug 8, 2025
Jun 30, 2025STOK
Stoke Therapeutics, Inc.
MOption exercise
Common Stock
+1,210$0.00$02,420Jul 2, 2025
Jun 30, 2025STOK
Stoke Therapeutics, Inc.
MOption exercise
Restricted Stock Unitsderivative
-1,210$0.00$02,422Jul 2, 2025
Jun 10, 2025RNA
Avidity Biosciences, Inc.
AGrant or award
Common Stock
+6,692$0.00$019,650Jun 12, 2025
Jun 10, 2025RNA
Avidity Biosciences, Inc.
AGrant or award
Stock Option (Right to Buy)derivative
+10,034$0.00$010,034Jun 12, 2025
Jun 3, 2025STOK
Stoke Therapeutics, Inc.
AGrant or award
Director Stock Option (Right to Buy)derivative
+29,747$0.00$029,747Jun 4, 2025
Mar 31, 2025STOK
Stoke Therapeutics, Inc.
MOption exercise
Common Stock
+1,210$0.00$01,210Apr 2, 2025
Mar 31, 2025STOK
Stoke Therapeutics, Inc.
MOption exercise
Restricted Stock Unitsderivative
-1,210$0.00$03,632Apr 2, 2025
Mar 19, 2025STOK
Stoke Therapeutics, Inc.
AGrant or award
Restricted Stock Unitsderivative
+4,842$0.00$04,842Mar 20, 2025
Jan 21, 2025RNA
Avidity Biosciences, Inc.
SOpen-market sale
Common Stock10b5-1
-1,872$28.60$54k12,958Jan 23, 2025
Nov 19, 2024RNA
Avidity Biosciences, Inc.
MOption exercise
Common Stock10b5-1
+3,323$1.24$4,12118,153Nov 20, 2024
Nov 19, 2024RNA
Avidity Biosciences, Inc.
SOpen-market sale
Common Stock10b5-1
-3,323$42.12$140k14,830Nov 20, 2024
Nov 19, 2024RNA
Avidity Biosciences, Inc.
MOption exercise
Stock Option (Right to Buy)derivative10b5-1
-3,323$0.00$00Nov 20, 2024
Oct 21, 2024RNA
Avidity Biosciences, Inc.
MOption exercise
Common Stock10b5-1
+5,000$1.24$6,20019,830Oct 23, 2024
Oct 21, 2024RNA
Avidity Biosciences, Inc.
SOpen-market sale
Common Stock10b5-1
-5,000$46.63$233k14,830Oct 23, 2024
Oct 21, 2024RNA
Avidity Biosciences, Inc.
MOption exercise
Stock Option (Right to Buy)derivative10b5-1
-5,000$0.00$03,323Oct 23, 2024

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.

Arthur A Levin: insider trades and track record | InsiderTell