DYN John Cox bought Dyne Therapeutics, Inc. shares — SEC Form 4BUYDyne Therapeutics, Inc.

John Cox, CEO & President at Dyne Therapeutics, Inc. (DYN), bought 100,000 shares at $9.11 ($911K) on 2025-07-14, disclosed to the SEC on 2025-07-15.

SEC EDGAR Filing

0000950170-25-095929

View on SEC EDGAR

Why this matters (generating…)

High-signal trade — passes our conviction filters but the AI narrative is still being generated. Check back shortly.

Notable67/100

Something here stands out, but not much.

Buying the DipMajor Holdings Increase (>50%)Unusually Large TradeOpportunistic BuyDeep Dip BuyLargest Purchase Ever

Trade Context

•Increased holdings by 70%
•Largest purchase ever, out of 2
•Last purchase was 313 days ago
•Stock down -43% in previous 6 months
•Mid-Cap ($2B-$10B market cap)

Filing Info

Filed2025-07-15

Traded2025-07-14

Accession0000950170-25-095929

SourceSEC EDGAR (Historical)

Insider

NameJohn Cox

TitleCEO & President

PIT GradeInsiderC

Score—

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DYN John Cox bought Dyne Therapeutics, Inc. shares — SEC Form 4BUYDyne Therapeutics, Inc.

Trade Context

Filing Info

Insider

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