$DYN

Rhodes Jason P sold $5.6M of DYN (indirect holdings)

Rhodes Jason P sold 267,760 indirectly-held shares of Dyne Therapeutics, Inc. (DYN) at an average of $21.09 ($21.02–$21.13, $5.65M total) across 9 trades over 2026-06-23 to 2026-06-25 under a Rule 10b5-1 trading plan.

Original reporting
SEC EDGAR · Rhodes Jason P
Published Jun 26, 2026, 12:40 PM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Jun 26, 2026, 1:04 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
medium confidence
Mentioned
$DYN
Relevance
5/10
AlphAI data visualization · based on SEC EDGAR
Decision brief

The 30-second read

$DYNNeutralLow
01

Why it matters

The newest concrete fact is the disclosed sale size ($5.65M) and the execution window (2026-06-23 to 2026-06-25). This can marginally influence sentiment but does not change the company’s fundamentals based on the text provided.

02

Market read

Traders may monitor for follow-on insider activity, but the 10b5-1 designation and lack of fundamental updates keep the trading signal weak.

03

What to watch

Indirect holdings and multiple small trades across days can reduce interpretability; traders should avoid over-weighting without corroborating fundamentals or additional filings.

Relevance 5/10Novelty 4/10Timing: Filed 2026-06-26 after sales executed 2026-06-23 to 2026-06-25

Background

The filing is an SEC Form 4 insider transaction for Dyne Therapeutics, Inc. (DYN) by director Rhodes Jason P, marked as an indirect holding sale under a 10b5-1 plan.

Company-level read

Ticker impact

$DYNNeutralMedium confidence
Context

Dyne Therapeutics director Rhodes Jason P sold $5.65M of DYN via an open-market sale under a pre-arranged 10b5-1 plan.

Expected impact

Likely limited near-term impact; any effect should be small and fade unless accompanied by other news.

Evidence & confidence

Form 4 provides transaction mechanics (size, dates, 10b5-1) but does not indicate new company performance, guidance, or regulatory/contract developments.

Market effects

No direct sector read-through; this is company-specific insider transaction disclosure.

None indicated.

None indicated.

Counterpoint

Because the sale was under a pre-arranged 10b5-1 plan, it may reflect routine liquidity rather than bearish expectations.

Key entities

  • Dyne Therapeutics, Inc.

    Issuer of the Form 4; director sold $5.65M of DYN shares via open-market transactions under a 10b5-1 plan.

  • Rhodes Jason P

    Director who executed the reported open-market sale of DYN shares (indirect holdings).

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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