$DYN

Kerr Douglas sold $116K of DYN

Kerr Douglas (Chief Medical Officer) sold 5,035 shares of Dyne Therapeutics, Inc. (DYN) at an average of $22.95 ($18.88–$24.35, $0.12M total) across 2 trades over 2026-09-04 to 2026-09-08 under a Rule 10b5-1 trading plan.

Original reporting
SEC EDGAR · Kerr Douglas
Published Sep 8, 2026, 8:14 PM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Sep 8, 2026, 8:30 PM UTC. Informational, not investment advice.
How this was made
AlphAI summarizes source reporting and applies a structured AI analysis for relevance, timing, sentiment and ticker impact. Always verify material claims with the original publisher.
AlphAI market briefInsider activity
Primary signal
$DYN
Neutral
high confidence
Mentioned
$DYN
Relevance
3/10
AlphAI data visualization · based on SEC EDGAR
Decision brief

The 30-second read

$DYNNeutralLow
01

Why it matters

Routine insider sale with limited market relevance.

02

Market read

Low relevance; typical insider liquidity event.

03

Timing

filed 2026-09-08

Relevance 3/10Novelty 4/10Timing: filed 2026-09-08

Background

Form 4 filing discloses insider transaction for Dyne Therapeutics.

Company-level read

Ticker impact

$DYNNeutralHigh confidence
Context

Chief Medical Officer Kerr Douglas sold 5,035 shares for $115,546 via a 10b5-1 plan.

Expected impact

No significant price movement expected.

Evidence & confidence

Sale size is small relative to float and typical insider activity; no change in control.

Market effects

No broader sector impact; biotech insider sales are routine.

None.

None.

Key entities

  • Dyne Therapeutics, Inc.

    Biotech firm listed on NASDAQ (ticker DYN).

  • Kerr Douglas

    Chief Medical Officer of Dyne Therapeutics.

Full insider trading history

This story covers one filing. See everything behind it: every insider buy and sell on record, 10b5-1 plans, late filings, and which officers and directors are trading.

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