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D

DYN

Nasdaq

Dyne Therapeutics, Inc.

Latest disclosureOctober 6, 2026
Insider score Why 23?
23/ 100
Qualifying buys · 30d
$40K

6 purchases · 111 sales

Price by TradingViewDelayed quote from TradingView, for viewing only. It does not power Whale Atlas scores or alerts. If the quote does not load, open the TradingView link.

Insider transactions 126

Limited filing history
All126Buying6Selling111Other9
Filters

Last 30 daysInsiders bought $40K · 1 buyer, led by Brian S. Posner (Director) with $40K. Sales: $247.78K by 3 insiders.

6 of 126 trades · March 30, 2026 – October 2, 2026Incomplete history: this shows the filings imported so far, not every filing ever made. Dates are trade dates. Filters affect this table only.
Purchase disclosed

Brian S. Posner

Director

Common Stock

Reported value
$40K
Reported price
$16.00 / share
Traded October 2, 2026Filed October 6, 2026SEC filing
Purchase disclosed

Brian S. Posner

Director

Common Stock

Reported value
$33.88K
Reported price
$16.94 / share
Traded June 8, 2026Filed June 9, 2026SEC filing
Purchase disclosed

Brian S. Posner

Director

Common Stock

Reported value
$43.7K
Reported price
$17.48 / share
Traded June 3, 2026Filed June 5, 2026SEC filing
Purchase disclosed

Brian S. Posner

Director

Common Stock

Reported value
$36.42K
Reported price
$18.21 / share
Traded May 26, 2026Filed May 28, 2026SEC filing
Purchase disclosed

Brian S. Posner

Director

Common Stock

Reported value
$42.8K
Reported price
$17.12 / share
Traded May 20, 2026Filed May 22, 2026SEC filing
Purchase disclosed

Brian S. Posner

Director

Common Stock

Excluded from the common-share buying signal. See trade details.

Reported value
$34.16K
Reported price
$17.08 / share
Traded March 30, 2026Filed April 1, 2026SEC filing
Reporting insiderSecurity / transactionAmount / priceValueTraded / disclosedSource
DirectorCommon StockPurchase2,500$16.00 / share$40KOct 2Filed Oct 6 · 4d laterSEC filing
DirectorCommon StockPurchase2,000$16.94 / share$33.88KJun 8Filed Jun 9 · 1d laterSEC filing
DirectorCommon StockPurchase2,500$17.48 / share$43.7KJun 3Filed Jun 5 · 2d laterSEC filing
DirectorCommon StockPurchase2,000$18.21 / share$36.42KMay 26Filed May 28 · 2d laterSEC filing
DirectorCommon StockPurchase2,500$17.12 / share$42.8KMay 20Filed May 22 · 2d laterSEC filing
DirectorCommon StockPurchaseExcluded from purchase score2,000$17.08 / share$34.16KMar 30Filed Apr 1 · 2d laterSEC filing
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Why this buying score?

Qualifying common-equity purchase value

$79,200 of common-equity purchase value after transaction-age decay across 180 days.

+6 pts

Distinct buying groups

1 distinct reporting-owner group(s). Joint rows count once; identity is not proof of discretion.

+7 pts

Material reported holdings increase

At least one row increased reported same-security holdings by 10% or established a new reported position; indirect interests may overlap.

+10 pts

This score describes qualifying insider purchases at issuer level. Read the methodology

Sources and coverage

Source
SEC EDGAR · Form 4
Issuer CIK
0001818794
Latest public acceptance
Oct 6, 2026, 08:15 PM UTC
Score calculated
Oct 7, 2026, 12:10 AM UTC
Parser
form4-parser-1.5
Classifier
form4-classifier-1.1
Scoring methodology
insider-experimental-1.1
Availability
Public filing time, not trade date

Open a transaction's SEC filing for the primary evidence. A code P may describe an open-market or private purchase; classification is not proof of intent.

Insider activity can have many explanations. Signal Strength is not a probability of profit or a recommendation to trade.

Congress transactions 0

All Congress filings
No disclosed congressional trades for DYN in the imported filings.

This reflects the filings imported so far, not a complete trading history.

Limited filing history · Market-wide discovery does not establish complete company history. View coverage