Form 4: Dyne Therapeutics CEO Sells Shares

Sentiment:

Insider Transaction (Form 4)


John Cox, CEO & President and a Director of Dyne Therapeutics, Inc., sold 4,986 shares of common stock on August 13, 2026 for $26.28 per share.

Summary

  • Open-market sale: disposed of 4,986 Common Stock at $26.28 ($131,032) on August 13, 2026; holds 363,165 after (Direct).

Sentiment

Score: 4

Explanation: StockSavvy.ai views this as a mildly negative but low-conviction signal: an insider sold $131,032 of stock under a pre-arranged Rule 10b5-1 plan, which is typically routine.

Insider Transactions

John Cox — Director, Officer (CEO & President)

Transaction made under a Rule 10b5-1 trading plan.

DateTransactionSecuritySharesPriceValueHeld After
2026-08-13Open-market saleCommon Stock4,986$26$131.0K363,165

Key Dates

DateDescription
2026-08-13Open-market sale (4,986 shares)

Keywords

insider transaction, Form 4, DYN, Dyne Therapeutics, Inc., bearish, John Cox

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